Suspension and Chassis Questions about your suspension? Need chassis advice?

Got my wheels Widened! mini-tub time!

Thread Tools
 
Search this Thread
 
Old 02-07-2008, 09:49 PM
  #51  
Banned
iTrader: (12)
 
Stephen's Avatar
 
Join Date: Jul 1999
Location: Bertram (outside Austin), TX
Posts: 12,212
Likes: 0
Received 10 Likes on 10 Posts
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Got my wheels Widened! mini-tub time!

Originally Posted by Orr89RocZ
wait what are you trying to say here?
Typo....Torque arm controls pinion, panhard controls side to side.
Old 02-07-2008, 09:49 PM
  #52  
Supreme Member

iTrader: (3)
 
stage20's Avatar
 
Join Date: Jan 2004
Location: p'cola FL
Posts: 2,311
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
Re: Got my wheels Widened! mini-tub time!

Originally Posted by Stephen
The panhard isn't supposed to control side to side. It controls pinion angle. The panhard is what controls side to side,
i hope you meant torque arm in the 1st sentance. im sure you did.
Old 02-07-2008, 09:52 PM
  #53  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Got my wheels Widened! mini-tub time!

yeah thats what i said, panhard controls side to side. so if you drop the rear and have clearance issues, just disconnect the panhard when you need to drop it.
Old 02-07-2008, 09:59 PM
  #54  
Banned
iTrader: (12)
 
Stephen's Avatar
 
Join Date: Jul 1999
Location: Bertram (outside Austin), TX
Posts: 12,212
Likes: 0
Received 10 Likes on 10 Posts
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Got my wheels Widened! mini-tub time!

Originally Posted by Orr89RocZ
yeah thats what i said, panhard controls side to side. so if you drop the rear and have clearance issues, just disconnect the panhard when you need to drop it.
Sorry, I mis-read your post. I just re-read it, and thought you had said the panhard DOESN'T control side-to-side.
Old 02-08-2008, 06:17 PM
  #55  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by sprojam
cool project its to bad about the hammer though! i hope when you get this all done you you post a pic so we get the big pic. your garage time is the envy of the block!
dont worry, i will have pic for you guys, my camera is just down at the moment. Hopefully i will have the passengerside finished this weekend
Old 02-08-2008, 11:02 PM
  #56  
Senior Member
 
joshh44's Avatar
 
Join Date: Apr 2007
Location: Canada, Vancouver Island
Posts: 665
Likes: 0
Received 0 Likes on 0 Posts
Car: 1990 T-Top Camaro RS
Engine: engineless
Transmission: Trannyless
Axle/Gears: 10 bolt/3.08. soon to be axleless
Re: Got my wheels Widened! mini-tub time!

oh man im doing something fairly similar to you.
just reading this thread is getting me excited!
i wish i had more money tho haha. i be out ordering all the parts i need right now!! but i dont gotta wait till afew more pay days before i can do anything like that

what do you think in total this mod will cost you with the rims to the finish product?
Old 02-09-2008, 09:36 AM
  #57  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

im doing all the work myself, and the tubs are built from scratch, so the wheels/tires are the most expensive.
lets see...
wheels widened 500 bux
control arms 200 bux
tires 740 bux
thats 1440 bux for just the wheel setup!

as for steel, maybe 40 bux
gas 45 bux
seal sealer, band-aids, sawzall blades, tetanus shot150 bux
thats 195 bux for extras so far

i dont know what im doing for the interior yet.

thats all i had to buy to go from where the car was sitting to where it will be. I already had the coil-over setup and the original wheels. I dont think a stock style spring will work, definitely need a smaller spring setup.

The largest factor is time, if you were paying someone to do this it would probably cost quite a bit. I started 2 weeks back, just working at night and on the weekend when i had time. Attention to detail is important too, no sense cutting off more material that you need, and if you dont measure, measure, and re-measure, you could run into issues.
Old 02-11-2008, 03:23 PM
  #58  
Supreme Member

 
Shagwell's Avatar
 
Join Date: Apr 2002
Location: Southwest Florida
Posts: 4,627
Likes: 0
Received 1 Like on 1 Post
Car: projects.......
Re: Got my wheels Widened! mini-tub time!

side-to side travel shouldn't be an issue. It's reasonably minimal through the suspensions range of motion. - I was lowered 2"(sportline) plus the big-azz stereo in the trunk. The bumpstop would contact the inside lip of the wheel when the suspension was at full droop, so I trimmed the corners off with a cut-off wheel. - Wasn't a side-to side problem, just an 11" fitment issue.

I understand what you're saying about the arms. Like I said, if I did anything different, it would just be a to plate the joint top and bottom. Those arms look to be plenty strong for any true street car.
Old 02-19-2008, 06:32 AM
  #59  
Member

 
FORMULA355TPI's Avatar
 
Join Date: May 2002
Location: BENSALEM, PA
Posts: 292
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 FORMULA / 88 IROC
Engine: 355 / 355
Transmission: T5 / TH400
Axle/Gears: 10 Bolt-3.73 / 9"-3.90
Re: Got my wheels Widened! mini-tub time!

If Steve let the arms leave his shop I wouldnt worry one bit about them. Your car is definately going to sit nice when its is all said and done. Just make sure the work you do to finish the interior is done just as nice or it will make the whole job will look like a hack did it. Good Luck!
Old 02-19-2008, 05:01 PM
  #60  
Supreme Member

 
Batass's Avatar
 
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes on 3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Got my wheels Widened! mini-tub time!

Originally Posted by //<86TA>\\
im doing all the work myself, and the tubs are built from scratch, so the wheels/tires are the most expensive.
lets see...
wheels widened 500 bux
control arms 200 bux
tires 740 bux
thats 1440 bux for just the wheel setup!

as for steel, maybe 40 bux
gas 45 bux
seal sealer, band-aids, sawzall blades, tetanus shot150 bux
thats 195 bux for extras so far

i dont know what im doing for the interior yet.

thats all i had to buy to go from where the car was sitting to where it will be. I already had the coil-over setup and the original wheels. I dont think a stock style spring will work, definitely need a smaller spring setup.

The largest factor is time, if you were paying someone to do this it would probably cost quite a bit. I started 2 weeks back, just working at night and on the weekend when i had time. Attention to detail is important too, no sense cutting off more material that you need, and if you dont measure, measure, and re-measure, you could run into issues.
Boy thats a lot of money just for an extra inch of tire!!!!
Old 02-19-2008, 05:21 PM
  #61  
Supreme Member

iTrader: (1)
 
nape's Avatar
 
Join Date: Aug 2003
Location: SW Chicago 'burbs
Posts: 1,428
Likes: 0
Received 0 Likes on 0 Posts
Car: American Iron Firebird
Engine: The little 305 that could.
Transmission: Richmond T-10
Axle/Gears: Floater 9" - 3.64 gears
Re: Got my wheels Widened! mini-tub time!

Originally Posted by Batass
Boy thats a lot of money just for an extra inch of tire!!!!
How about it! Between money and unsprung weight, he would've been better off with 315 R-comps!
Old 02-19-2008, 05:27 PM
  #62  
Supreme Member

 
Batass's Avatar
 
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes on 3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Got my wheels Widened! mini-tub time!

I think if I wanted a lot of traction on the street, and wanted to use a tire that actually has some tread on it (what you have vs say et streets), I wouldve gone the extra distance and relocated the control arms inward.
Old 02-19-2008, 06:18 PM
  #63  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by nape
How about it! Between money and unsprung weight, he would've been better off with 315 R-comps!
that may be true, i dont have the weight of my wheel/tire combo vs a 315, but my wheels dont weigh as much as i though they did, they were quite light before i put the tires back on.

as for the size, its just how i feel about things, sure, i could have used 315's, saved a lot of time on the fab work and been just like every other wide street tire guy on this board, or i could invest a bit of my down time this winter and do something different to make the car more unique.

im not racing the car, a drag radial/slick/et street does not make any sense for me. I drive the car on the street, and like it to handle and hug the road, not just go fast straight. And if i want to hit the track and go fast and straight, i can swap in a pretty good sized drag radial/slick back there and be on my way. Im sure i can fit a 28 or 29 by 12.5" tire back there on a 15x10 with 6.5"bs with no problems whatsoever.

As for relocating the control arms, has anyone here who responds with this remark ever looked under the back of the car? The shock mount on the axle is in the way. Its not just a simple matter of flipping the arm inboard and making a new mount. You have to completely relocate the shocks. Which i think would be way more work that what im doing.

Anywho, im making decent progress, the passenger side is about 90% finished, just needs some final finishing, sealing and painting, and just a little welding. and the driverside is about 75% done, sorry i haven't had any pics in a while, my camera took a dive and i haven't had any time to fix/replace it.

I was looking at the interior pieces, and back seat... and i think i may found another project that will last me the rest of the winter. it does not look like things are going to just pop back in.
----------
Originally Posted by Batass
Boy thats a lot of money just for an extra inch of tire!!!!
actually, from where i started, its 4" of tire

Last edited by //<86TA>\\; 02-19-2008 at 06:19 PM. Reason: Automerged Doublepost
Old 02-23-2008, 04:34 PM
  #64  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

this not having a camera is killing me, im going to try to get some decent ones with my phone. Im 99% finished with the fab work on the tubs. Got them all painted and the wheelwells painted and undercoated.

I just have to re-build the rear "mudflap" on the driverside covering the gas filler neck, extending it to the new inner fender. Once the paint dries i can mock up the control arms and massage the floorpan a little for clearance, then its just a matter of making a set of relocation brackets for the panhard bar and the fab work is all done! woot! i see light at the end of the tunnel.
Then i get the wonderful task of dealing with the interior....
Old 02-24-2008, 02:07 PM
  #65  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

it together, have a few little odds and ends to attend to but the bulk of the work is finished!!!

And, {drum roll} i have pics! I wont tell what was wrong with the camera, needless to say i feel like a moron....

the tubs from the inside, from the rear all gooped up with seam sealer,



as you can see, i used the basic shape of the stock wheelhouse and mated it up with the new metal, the inside pieces of both the tubs are 1 big piece of 11ga trimmed to fit and cap off the frame while providing the structural support of the removed bump stop area.

an interior shot of the right tub, the flash made the paint look waaaay off but you can see in the first pic it is very close

I haven't tried to fit the seat yet, i think it will just fit, but im not holding my breath

a shot of the inside of the left wheel well

I have 9.5" on both sides form the face of the rotor flange to the new inner wheel well, giving me a little less than 3/4, 5/8 of an inch from the tire to the well.

a pic of the right side control arm installed


continued....

shots form the right rear



left rear



and a straight shot of the whole rear to top things off for now


and i know the exhaust is off, i tripped on it and haven't fixed it yet....

I still need to lower the driverside panhard mount to level the bar and start making a plan for the interior work

Last edited by //<86TA>\\; 02-24-2008 at 02:11 PM.
Old 02-24-2008, 02:56 PM
  #66  
Supreme Member

iTrader: (10)
 
MikeH's Avatar
 
Join Date: Jul 1999
Location: Fla
Posts: 1,780
Likes: 0
Received 2 Likes on 2 Posts
Car: 90 IROC
Engine: 406
Transmission: GMPP 93/4L60
Axle/Gears: 9 bolt 3.27
Re: Got my wheels Widened! mini-tub time!

Looks really cool..
Old 02-24-2008, 03:22 PM
  #67  
Supreme Member

 
Batass's Avatar
 
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes on 3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Got my wheels Widened! mini-tub time!

Looks good man, tripped over the exhaust lol. Looks real good, let us know how much better it grabs on the street.
Old 02-24-2008, 04:06 PM
  #68  
Member

iTrader: (12)
 
WIll36's Avatar
 
Join Date: Dec 2005
Location: NY
Posts: 383
Likes: 0
Received 3 Likes on 2 Posts
Car: 88IROC, 91Z28 + parts cars
Engine: 355, 408
Transmission: T56
Axle/Gears: 3.42 LS1, 9" w/ 4.56 and spool
Re: Got my wheels Widened! mini-tub time!

First off the car looks sick with the massive rubber out back. How close does the edge of your tire sit to the fender lip though? I'm going to run a large tire but probably not quite as big as your and I'm trying to decide if I want to go with a wider 4th gen style S60 for possibly mini tub the car like you did. But my other question is can you still put the plastic trim panels back in with the mods you have made? Also can't wait to see how sick it looks all done
Old 02-24-2008, 04:35 PM
  #69  
Supreme Member

iTrader: (20)
 
Orr89RocZ's Avatar
 
Join Date: Sep 2003
Location: Pittsburgh PA
Posts: 25,749
Received 368 Likes on 297 Posts
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: Strange 12 bolt 3.42
Re: Got my wheels Widened! mini-tub time!

STEAMROLLERS!! thats just awesome man! i love the look of FAT tires out back

i will go to 295-315's when i'm ready but i would always want bigger i'm just not gonna go thru with the mods you did to get it bigger/wider
Old 02-24-2008, 05:11 PM
  #70  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by Orr89RocZ

i will go to 295-315's when i'm ready but i would always want bigger i'm just not gonna go thru with the mods you did to get it bigger/wider
hehe, im not even finished yet and i dont think i would ever do it again any time soon.
----------
Originally Posted by WIll36
... But my other question is can you still put the plastic trim panels back in with the mods you have made? ...
um yea, plastics....hmmm....

The piece right behind the door, where the seatbelt come out, or may i say used to come out, will fit, but i have to trim the indent where the belt came though, i'll probably remove it entirely and just smooth it over. the larger pieces that extend all the way to the back.... I going to have to cut them up and extend them inward a tad, not quite going top make it.
Im going to do my best to use as much of the original parts as i can, and just modify them to suit my needs, then im probably going to have to smooth them all out and re-paint them, or have them covered in vinyl/or carpeting.

Last edited by //<86TA>\\; 02-24-2008 at 05:15 PM. Reason: Automerged Doublepost
Old 02-24-2008, 05:25 PM
  #71  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by WIll36
How close does the edge of your tire sit to the fender lip though?
the outermost part of the tire site about 1/8" overlapping the lip that runs around the well opening, so they are sitting about 3/4" inboard for the outermost face of the quarter-panel, right where they should be IMO

this is a straight on look down the wheel
Old 02-25-2008, 10:59 AM
  #72  
Supreme Member

 
Shagwell's Avatar
 
Join Date: Apr 2002
Location: Southwest Florida
Posts: 4,627
Likes: 0
Received 1 Like on 1 Post
Car: projects.......
Re: Got my wheels Widened! mini-tub time!

- that's a thing of beauty!
Old 02-25-2008, 12:26 PM
  #73  
Member

iTrader: (12)
 
WIll36's Avatar
 
Join Date: Dec 2005
Location: NY
Posts: 383
Likes: 0
Received 3 Likes on 2 Posts
Car: 88IROC, 91Z28 + parts cars
Engine: 355, 408
Transmission: T56
Axle/Gears: 3.42 LS1, 9" w/ 4.56 and spool
Re: Got my wheels Widened! mini-tub time!

cool thanks a lot I think I'm probably just gonna cheat a little and use a wider 4th gen sized axle with 0 offset 17x10s and I should have just enough room to run a 315 with it sticking out a little further, but i won't know till i mock the entire thing together. The 335 look sick but I just don't want to add the extra time to the project right now and fab my own tubs. bump for a sweet project
Old 02-25-2008, 01:01 PM
  #74  
Member
iTrader: (1)
 
KJZ28/TA's Avatar
 
Join Date: Dec 2006
Location: New York
Posts: 233
Likes: 0
Received 0 Likes on 0 Posts
Car: 2002 Camaro
Engine: :(
Transmission: T5
Re: Got my wheels Widened! mini-tub time!

Good lord those suckers are BIG!
Old 02-25-2008, 03:42 PM
  #75  
Supreme Member

 
Guido's Avatar
 
Join Date: Jul 1999
Location: Indianapolis, IN
Posts: 1,827
Likes: 0
Received 1 Like on 1 Post
Car: 2000 Trans Am
Engine: LS1
Transmission: T56
Re: Got my wheels Widened! mini-tub time!

Those LCA rods scare me.

I remember some people running 13" slicks without creating a wreck waiting to happen like that.

If anything, you could have doubled up the bushings on the wheel side of the LCA pcket, and then pushed the LCA further inside. That would have created about as much space as you have.

I predict one good plant and if the weld doesnt sheer, than it will bend at the weld.

One other options would be to shoulder load it on the entire inside of the lca mount, but thats a bit scary as well.

I still wouldnt have done it.
Old 02-25-2008, 04:08 PM
  #76  
Member

iTrader: (1)
 
RevItUpZ28's Avatar
 
Join Date: May 2003
Location: NC
Posts: 457
Likes: 0
Received 1 Like on 1 Post
Car: '91 Camaro Z28
Engine: 383 Vortec HSR
Transmission: Pro-Built 700-R4;Vig 4000 stall
Axle/Gears: Moser M9 9" / 3.89
Re: Got my wheels Widened! mini-tub time!

What rear are you running?
Old 02-25-2008, 04:55 PM
  #77  
Supreme Member

 
injdinjn's Avatar
 
Join Date: Dec 2001
Location: I won't tell either
Posts: 2,862
Likes: 0
Received 1 Like on 1 Post
Car: 1986 Grand Prix TPI
Engine: 350 TPI
Transmission: 200 4R
Re: Got my wheels Widened! mini-tub time!

I predict that with those tires the rear wheels float in a cup of spilled coffee.

And those LCRs do not look strong enough to me, but I am sure Steve has a 100% mfgs warranty that includes collateral damage coverage.
Old 02-25-2008, 06:40 PM
  #78  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by injdinjn
but I am sure Steve has a 100% mfgs warranty that includes collateral damage coverage.
nobody who makes "performance suspension" parts offers any kind of warranty on the parts.

I will be completely honest here, im not a 100% on the control arms. They work, and feel quite sturdy to me, but like people have said, the way they are connected looks a little, "frail" for lack of a better word. Im going to have to just keep an eye on them for any movement, and maybe give them a good beating on a side road near my house and see what happens. If things seem to be bending, looking weird, then i'll look more into "plan B", consisting of either billet aluminum or billet steel.

I cant use the control arms that have 2 rod ends and are offset all the way inboard, they do not have enough clearance, close, but no cigar
Old 02-25-2008, 06:57 PM
  #79  
Senior Member

iTrader: (5)
 
KYLE87's Avatar
 
Join Date: Mar 2007
Location: Texas
Posts: 898
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Camaro
Engine: 5.7
Transmission: 700R4
Re: Got my wheels Widened! mini-tub time!

Just curious what kind of tires those are and what kind are the old 245's?? Looks sick btw.

Last edited by KYLE87; 02-25-2008 at 07:03 PM.
Old 02-25-2008, 07:58 PM
  #80  
Moderator

 
Vader's Avatar
 
Join Date: Jan 2000
Posts: 19,366
Received 219 Likes on 179 Posts
Re: Got my wheels Widened! mini-tub time!

The really disconcerting part is that there is very little bearing area between the tube sections, and all the load will be concentrated at the welds instead of distributed around the entire diameter of the tubing. A mandrel bent offset in a single tube would make me feel much better about putting any serious force on them. Even an offset I beam would have more inherent design strength. I'm hoping Spohn has done the complete mechanical design study and is confident that the members will withstand compression, torsion, and shear all at once, but would like to see the numbers ahead of time - Before a good launch and potentially serious damage to the vehicle. Then again, I'm a little **** about engineering design and probably worry too much.
Old 02-25-2008, 11:02 PM
  #81  
Supreme Member

 
Batass's Avatar
 
Join Date: Mar 2005
Location: Benzie, MI
Posts: 1,665
Likes: 0
Received 3 Likes on 3 Posts
Car: 91 rs
Engine: Blow through 383, 10 psi, xr288hr
Transmission: Manual th350 ATI 3000
Axle/Gears: 3.50 9"
Re: Got my wheels Widened! mini-tub time!

Im pretty sure they're strong enough. Ever really look at the control arm mounts? Same forces going on there, and they're thinner. I sometimes wonder why they dont rip off the body. How about the panhard bar mount? Pretty weak lookin. And after 20 years of beating, looks unphased. I'm sure theres exceptions, and I have heard of guys ripping the rears out of their car on a real hard launch, but I'd say its very rare. Correct me if I'm wrong though.

If they were both like this: [ [ I might be concerned because the axle would shift to the right under a good load. But they are like this: ] [ I doubt they flex at all.
Old 02-26-2008, 05:50 AM
  #82  
Supreme Member

iTrader: (14)
 
greezemonkey's Avatar
 
Join Date: Jan 2004
Location: The "D"
Posts: 1,761
Likes: 0
Received 3 Likes on 3 Posts
Car: A Portly 85 Z28
Engine: 4.530 X 4.250 BBC
Transmission: under rated for this application
Axle/Gears: also under rated
Re: Got my wheels Widened! mini-tub time!

The control arms "push" the car on accel and "pull" under braking, also "lift" while accelerating. They do not look like they will last from what I can see, just not enough overlap of the sections IMO...I would worry too much though, I saw an early firebird rolling down the freeway this winter with something bobbing under it, after closing in on the car I realized with disbelievement that the control arm on the drivers side was rotted in half and the front half was just bobbing up and down as the guy continued too drive.
I`m sure it must have had a feeling like driving a spagehtti noodle down the road but the guy looked as if he was having no problem driving with only 1 control arm.

Otherwise your tub job looks just fine, I just recently finished doing mine as well, (I already jacked the plastics up though) but I can relate it`s a job but worth it while we are parked!
Old 02-26-2008, 12:35 PM
  #83  
Supreme Member

 
injdinjn's Avatar
 
Join Date: Dec 2001
Location: I won't tell either
Posts: 2,862
Likes: 0
Received 1 Like on 1 Post
Car: 1986 Grand Prix TPI
Engine: 350 TPI
Transmission: 200 4R
Re: Got my wheels Widened! mini-tub time!

I'm hoping Spohn has done the complete mechanical design study and is confident that the members will withstand compression, torsion, and shear all at once,
Old 02-26-2008, 04:15 PM
  #84  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Originally Posted by greezemonkey
I saw an early firebird rolling down the freeway this winter with something bobbing under it, after closing in on the car I realized with disbelievement that the control arm on the drivers side was rotted in half and the front half was just bobbing up and down as the guy continued too drive.
I`m sure it must have had a feeling like driving a spagehtti noodle down the road but the guy looked as if he was having no problem driving with only 1 control arm.
Ive seen that before too! on a camaro, not sure of the year, but i think it was a later model due to the ground fx, driverside control arm just hanging there, rotten in two.
Old 02-26-2008, 04:49 PM
  #85  
Junior Member
iTrader: (1)
 
Grizzle B's Avatar
 
Join Date: Feb 2008
Location: Panama City, Florida
Posts: 42
Likes: 0
Received 0 Likes on 0 Posts
Car: 1984 Camaro Z28
Engine: '92 LT1
Transmission: 700R-4
Axle/Gears: 3.73 factory posi. disc brakes
Re: Got my wheels Widened! mini-tub time!

mine stick out and the fender will cut the tire. . . . it sucks
Old 02-26-2008, 05:02 PM
  #86  
Supreme Member

 
Tobias05's Avatar
 
Join Date: Jul 2003
Location: any clime or place...
Posts: 2,779
Likes: 0
Received 2 Likes on 2 Posts
Car: 1987 Camaro SC, 1999 Z28
Engine: GMPP 350HO, LS1
Transmission: Built 700r4/EDGE 3200, T56
Axle/Gears: 3.42 Eaton 7.625, 3.42 Zexel Torsen
Re: Got my wheels Widened! mini-tub time!

wow those tires are huge. congrats on all the hard work!
Old 02-27-2008, 12:19 PM
  #87  
Supreme Member

 
Shagwell's Avatar
 
Join Date: Apr 2002
Location: Southwest Florida
Posts: 4,627
Likes: 0
Received 1 Like on 1 Post
Car: projects.......
Re: Got my wheels Widened! mini-tub time!

Originally Posted by WIll36
cool thanks a lot I think I'm probably just gonna cheat a little and use a wider 4th gen sized axle with 0 offset 17x10s and I should have just enough room to run a 315 with it sticking out a little further, but i won't know till i mock the entire thing together. The 335 look sick but I just don't want to add the extra time to the project right now and fab my own tubs. bump for a sweet project
a 10 wide doesn't fit a 315 very well. The nitto's fit ok, the bfg's bulge too much. The axle width doesn't matter as long as you get the wheel backspacing correct. - If you search under my name, there are pics of my 4th gen rear, 17x11/315 combo. That's the best they'll fit w/o "tubbing".
Old 02-27-2008, 08:11 PM
  #88  
Member

iTrader: (12)
 
WIll36's Avatar
 
Join Date: Dec 2005
Location: NY
Posts: 383
Likes: 0
Received 3 Likes on 2 Posts
Car: 88IROC, 91Z28 + parts cars
Engine: 355, 408
Transmission: T56
Axle/Gears: 3.42 LS1, 9" w/ 4.56 and spool
Re: Got my wheels Widened! mini-tub time!

That would be my ideal solution I just haven't found any 17x11s that I haven't seen on mulitiple vehicles before, nor do I want to pay to have custom wheels made or other rims widened. So we'll see where it all goes in the end. Thanks for the source for the pictures

Last edited by WIll36; 02-27-2008 at 08:31 PM. Reason: typo
Old 02-27-2008, 08:29 PM
  #89  
Banned
iTrader: (12)
 
Stephen's Avatar
 
Join Date: Jul 1999
Location: Bertram (outside Austin), TX
Posts: 12,212
Likes: 0
Received 10 Likes on 10 Posts
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Re: Got my wheels Widened! mini-tub time!

Originally Posted by WIll36
That is ideally what I would like to do but I haven't found any 17x11 that I really like. I'm going to run the Nito NT555Rs. I called them they said that as long as proper tire pressure is maintained that a 10" rim is alright but I'm going to keep looking and hopefully find a 11" wide rim that will look good on the car that everybody else doesn't have. I like the vette rims I've seen but want something different. Thanks for the source for the pics by the way
If you can find a design, but it 's not wide enough, just have it widened. Best I can do is 9", and might go 11s. Wish somebody could widen to the OUTSIDE, and it still look good, no welding beads.
Old 03-29-2008, 02:59 PM
  #90  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

Update, no pics sorry

Weather was nice today so i took it out for the first spin of the year. took it out and threw it around a bit and didnt hear any weird noises coming from the new metalwork, which is a good sign. No rubbing and the back end feels a whole lot better now that the panhard bars are not hitting each other.

Its supposed to snow or something tomorrow night, so the salt will be coming back, hopefully not for long so i can get some more seat time and see if i can blow the rear or break the control arms.

As for the control arms...... I found that they aren't going to clear the wheels when lowered on LCARB's, so if I happen to pickup some wheel hop im going to have to go to plan "B".

Interior work SUCKS!!!!
Modifying interior panels SUCKS!!!!

so far ive managed to f-up my passengerside cargo area interior, so i had to pickup a new set. I have 1 pc of the driverside almost finished so i will have some pics of that soon.

Damn my car is dirty......
Old 03-29-2008, 03:41 PM
  #91  
Junior Member
 
Owl_'s Avatar
 
Join Date: Oct 2006
Location: Silicon Valley, California
Posts: 58
Likes: 0
Received 0 Likes on 0 Posts
Car: 1987 Z28 Camaro
Engine: LB9 V8 305-cid
Transmission: 4 speed automatic - 700r4
Axle/Gears: stock - 2.73 rear end
Re: Got my wheels Widened! mini-tub time!

Great thread on widening of your rims and what you did to get to where you are now to get them on your car! I'm looking forward to seeing rest of your report!
Old 03-29-2008, 03:56 PM
  #92  
Junior Member
 
TeePEye87's Avatar
 
Join Date: Mar 2008
Posts: 25
Likes: 0
Received 0 Likes on 0 Posts
Re: Got my wheels Widened! mini-tub time!

Man, that's a big difference! Looks evil with those wide rubbers out back.

Thanks for posting all the pics.
Old 03-29-2008, 04:13 PM
  #93  
Supreme Member

iTrader: (3)
 
stage20's Avatar
 
Join Date: Jan 2004
Location: p'cola FL
Posts: 2,311
Likes: 0
Received 0 Likes on 0 Posts
Car: 88 iroc-z/28
Engine: 408 lsx
Transmission: 5800 stall
Axle/Gears: 4.71
Re: Got my wheels Widened! mini-tub time!

on the relocation brackets, a lot of guys are completely cutting off the stock mounts, and going back wit ha custom thin mount the width of the rod end, instead of using spacers to fit in the stock style bracket.
this will save another inch or so.
good luck!
Old 03-29-2008, 06:05 PM
  #94  
Senior Member
iTrader: (5)
 
SDTransAM's Avatar
 
Join Date: Nov 2007
Location: Rapid City, SD
Posts: 529
Likes: 0
Received 0 Likes on 0 Posts
Car: '83 z/28
Engine: 305
Transmission: T5
Axle/Gears: Stock?
Re: Got my wheels Widened! mini-tub time!

Looks AWESOME, makes my 275 summitomo's look tiny. Cant wait to see some photo shoot pics.
Old 03-30-2008, 09:53 PM
  #95  
Member
 
92RS702's Avatar
 
Join Date: Feb 2008
Location: Las Vegas NV
Posts: 173
Likes: 0
Received 1 Like on 1 Post
Car: 92RS
Engine: 305= boat anchor
Transmission: T5
Axle/Gears: 4th gen 3.23
Re: Got my wheels Widened! mini-tub time!

Those tires look great on the car,keep the pics coming.
Old 11-29-2009, 06:51 PM
  #96  
Supreme Member

Thread Starter
iTrader: (14)
 
//<86TA>\\'s Avatar
 
Join Date: Aug 2006
Location: Central NJ
Posts: 12,652
Likes: 0
Received 46 Likes on 44 Posts
Car: 86 Trans Am, 92 Firebird
Engine: 408 sbc, 3.1L of raw power
Transmission: TKO600, T5
Axle/Gears: Moser 9", 3:70 trutac, 3:23 torsion
Re: Got my wheels Widened! mini-tub time!

had a guy asking questions, so i'll dig up this thread for the pics.

Oh, and the control arms are fine after almost 2 years.
Old 11-29-2009, 07:21 PM
  #97  
Member

iTrader: (1)
 
luke j's Avatar
 
Join Date: Feb 2001
Location: Indiana
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Car: '87 GTA hardtop, '86 IROC hardtop
Engine: 385 DFI, 350 carb
Transmission: T-56, T-5
Axle/Gears: ls1 torsen 10-bolt, 9-bolt disc
Re: Got my wheels Widened! mini-tub time!

AWESOME!!!! I am putting the same size on my car.
Old 11-30-2009, 07:16 AM
  #98  
Former Sponsor
 
BMR Sales's Avatar
 
Join Date: Nov 2008
Location: Tampa
Posts: 269
Likes: 0
Received 1 Like on 1 Post
Re: Got my wheels Widened! mini-tub time!

Man those wheels came out nice! Tubs look good too!
Old 03-16-2010, 09:49 PM
  #99  
Member

iTrader: (1)
 
luke j's Avatar
 
Join Date: Feb 2001
Location: Indiana
Posts: 127
Likes: 0
Received 0 Likes on 0 Posts
Car: '87 GTA hardtop, '86 IROC hardtop
Engine: 385 DFI, 350 carb
Transmission: T-56, T-5
Axle/Gears: ls1 torsen 10-bolt, 9-bolt disc
Re: Got my wheels Widened! mini-tub time!

I started mocking up my 335s, I have a 4th gen rear sitting next to the car, plus all bmr suspension.
Attached Thumbnails Got my wheels Widened!  mini-tub time!-dsc05877e.jpg   Got my wheels Widened!  mini-tub time!-dsc05886e.jpg  

Last edited by luke j; 03-17-2010 at 09:11 AM.
Old 03-16-2010, 10:36 PM
  #100  
Supreme Member

iTrader: (4)
 
InfernalVortex's Avatar
 
Join Date: Dec 2005
Location: Macon, GA
Posts: 6,485
Received 20 Likes on 17 Posts
Car: 1992 Camaro RS
Engine: Vortec headed 355, xe262
Transmission: T56
Axle/Gears: 9-bolt 3.70
Re: Got my wheels Widened! mini-tub time!

Wow I LIKE that Z28 wing on that firebird...


Quick Reply: Got my wheels Widened! mini-tub time!



All times are GMT -5. The time now is 07:37 PM.