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87 Iroc LT1 Single Turbo Build

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Old 07-13-2009, 03:18 PM
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Re: 87 Iroc LT1 Single Turbo Build

Yep, and I'd take either right now.
Old 07-13-2009, 06:37 PM
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Re: 87 Iroc LT1 Single Turbo Build

any updates jay? did you get your tune dialed in yet? any plans on hittin the strip?
Old 07-13-2009, 08:52 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by iroc a 86 berli
any updates jay? did you get your tune dialed in yet? any plans on hittin the strip?
Nope had an issue, car wouldnt make boost, pulled the hotside and it was fine, found out a BOV was leaking. SO i ordered a 50mm.

Also just ordered a Moser 9inch, gonna try a spool and a 2.73 gear (i street drive alot)

I will have it runnin in a couple days with the stock rear still. Im gonna try and get some more tuning in this week!

Jay
Old 07-19-2009, 02:29 AM
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Re: 87 Iroc LT1 Single Turbo Build

Well i didnt make it to the track...instead the dyno!

I have a **** tune right now..well it runs strong as hell but it is running 11.0:1AFR or richer.

8psi
91 octane
26* timing

583RWHP@6250rpm
490RWTQ@6240rpm

I told the guy to try to rev it to 6500rpm but the first run he made I dont think he relized what the car would do bc he let off at 6100 and made 547 and was like WTF that comes on FAST lol his face was awesome!

So once I get it tuned and on race gas I am thinking I will be around the 650-675RWHP range.....

Also side note I smashed a Blown 347 notch mustang on 8psi also....we made 3 pulls 2 digs, and i had ZERO traction and then he was like wanna try to roll and im like hahah sure....bus lengths happened lol

VIDEO TO COME SOON!
Old 07-19-2009, 09:38 AM
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Re: 87 Iroc LT1 Single Turbo Build

Yeah....Mustangs are everywhere...like some virus you can't get rid of. You don't see very many third gen Camaros around anymore....of course, you don't see too many notchback Stangs around, either, not nice ones, anyway.I'm glad you destroyed the Stang. I'd like to see you race a built Terminator Cobra or some other built Stang. Some of those Cobras are nasty, as you know. It could be a good race. I like seeing a third gen Camaro walk on a newer Stang. I have seen some SICK Cobras, though. I had one humiliate me when I had my built Dodge SRT-4 (420 hp to the fronts). I had traction issues....to say the least, even in third gear. I got tired of front wheel drive B.S., and I got an IROC....then I sold it cuz I needed the money Can't wait to see a video of your car again.
Old 08-03-2009, 03:29 PM
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Re: 87 Iroc LT1 Single Turbo Build

Congrates on the mustang smackdown. haha. Lets see the vid.
Old 08-04-2009, 01:34 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well here are some new parts to install :P

Jay



Old 09-08-2009, 05:47 PM
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Re: 87 Iroc LT1 Single Turbo Build

update...i bought my first house.....fixed the hotside on the car, fired it up and the headgaskets are ****ed! Shot a bunch of coolant outta the merge. I dunno why, last time I drove the car (month and a half) it was perfect, didnt blow smoke, oil was fine etc.

So the car is done for the year, once i move into my house I will tear the motor down and check it all over.

Jay
Old 09-08-2009, 06:05 PM
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Re: 87 Iroc LT1 Single Turbo Build

Here is the vids from before I put the rear end in and put my summit stars on...little did i know i shoulda spent money on head gaskets lol

Jay

http://videos.streetfire.net/video/3...Z28_706355.htm

http://videos.streetfire.net/video/3...Z28_706357.htm
Old 09-09-2009, 05:08 PM
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Re: 87 Iroc LT1 Single Turbo Build

bad fukin A$s! i really need to get going on my turbo build, well winter is right around the corner, so best start now.
congrats on the house, i bought mine 2 years ago. exciting stuff, alot of signing papers tho.
Old 09-09-2009, 07:22 PM
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Re: 87 Iroc LT1 Single Turbo Build

thanks man!!

Well cylinder 8 pumped out a ton of coolant.

Pressure tested every cylinder and it was 210 across every one!

Now the back 4 rockers on both sides started to rust so I need to take them off and wheel them, Im gonna pull the heads next week and see if its the head or gasket.

So kinda good news!!!


Jay
Old 09-15-2009, 02:03 AM
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Re: 87 Iroc LT1 Single Turbo Build

When you switch to the 88mm what type of power do you think you will be getting out the car at the wheels? Nice build to by the way.
Old 09-15-2009, 09:11 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Jay_rich
thanks man!!

Well cylinder 8 pumped out a ton of coolant.

Pressure tested every cylinder and it was 210 across every one!

Now the back 4 rockers on both sides started to rust so I need to take them off and wheel them, Im gonna pull the heads next week and see if its the head or gasket.

So kinda good news!!!


Jay
thats kinda wierd, wonder if the manifold coolant passages are leaking into the intake runners? is your block decked? if it is and the heads are nice and flat, id run the mls gaskets.
Old 09-20-2009, 11:49 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by iroc a 86 berli
thats kinda wierd, wonder if the manifold coolant passages are leaking into the intake runners? is your block decked? if it is and the heads are nice and flat, id run the mls gaskets.
Coolant doesn run thru the intake on an LT1.

Anyways it ended up being a cracked head! When the car overheated earlier in the year it must cracked it.

NO COOLANT GOT IN THE MOTOR!!!!

It cracked on the intake side and the intake valve was closed so it just filled the port up

So im ordering some patriot heads sometime. and dropping the compression to 8.75:1

Jay
Old 09-21-2009, 12:44 AM
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Re: 87 Iroc LT1 Single Turbo Build

I may have missed it in you post, but what ecm are you using??
Old 09-22-2009, 11:47 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Iroczracer
I may have missed it in you post, but what ecm are you using??
Just the stock LT1, tuned myself.

Jay
Old 09-22-2009, 07:21 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Iroczracer
I may have missed it in you post, but what ecm are you using??


Originally Posted by Jay_rich
Just the stock LT1, tuned myself.

Jay
really? what software are you using?
Old 09-24-2009, 04:49 AM
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Re: 87 Iroc LT1 Single Turbo Build

Thanks... I was thinking about that myself or getting a aftermarket one. Maybe a Pro Charger in the future, think I will just work with what I have.. Brings me back to 86 and riding through town in a friends Buick GN, have wanted a turbo every since..Great job!!
Old 09-24-2009, 08:53 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Corner Worker
really? what software are you using?
Just tunercat.

I am eventually gonna switch to megasquirt when i have the cash.

Jay
Old 09-24-2009, 08:57 AM
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Re: 87 Iroc LT1 Single Turbo Build

cant go wrong with Mega Squirt. ive been waiting on $$ to order mine up!

sucks about the cracked head.
Old 09-24-2009, 07:20 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by iroc a 86 berli
cant go wrong with Mega Squirt. ive been waiting on $$ to order mine up!

I went a completely different route with my LT1. I have a 1993 M6 car that I converted to a 727 ecm. Fabbed up a crank trigger wheel from a CAD drawing of a northstar CTW, and used the northstar coil packs. good bye opti, hello wasted spark. My buddy is going to help me with the code59 stuff. Right now its running on $8D. The car will eventually be a turbo car. I have basically $100 in hardware, plus the prominator (which I am borrowing right now). Might be a MUCH cheaper alternative to megasquirt, plus you will have better driveability.
Old 09-25-2009, 11:53 AM
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Re: 87 Iroc LT1 Single Turbo Build

Just want to say that this build is awesome! Smoking stangs is always fun. So badass that you did the fab work yourself, makes me REALLY want to learn how to weld. I also want to compliment you on doing some brake upgrades. I see quite a few cars that people do serious mods to making it go fast and none to making it slow down.

Sick build!
Old 09-25-2009, 02:52 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Corner Worker
I went a completely different route with my LT1. I have a 1993 M6 car that I converted to a 727 ecm. Fabbed up a crank trigger wheel from a CAD drawing of a northstar CTW, and used the northstar coil packs. good bye opti, hello wasted spark. My buddy is going to help me with the code59 stuff. Right now its running on $8D. The car will eventually be a turbo car. I have basically $100 in hardware, plus the prominator (which I am borrowing right now). Might be a MUCH cheaper alternative to megasquirt, plus you will have better driveability.
I posted to that DIY PROM thread with info. about the ref. angles. You two were having difficulty getting it running with the N* stuff. Have you guys figured out what you had setup wrong yet?
Old 09-25-2009, 04:11 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by junkcltr
I posted to that DIY PROM thread with info. about the ref. angles. You two were having difficulty getting it running with the N* stuff. Have you guys figured out what you had setup wrong yet?
replied to the diy thread for you. but yep, running good. dial back timing light with a wasted spark setup = bad haha to the OP, I'd say checking into the northstar coil pack and 727 ecm swap is worth the time. and since your running an lt1, even if you don't want to fab up the wheel and sensors mount yourself, the part numbers are up to just order the wheel and sensor bracket from the boat world. even at a few 100$ I think it would turn out cheaper and better than MS. or atleast more DIY lol. I like what I've seen from $59 so far for boost, but I've also seen a thread about a 2 bar $8D might be released soon too. so options are good.
Old 09-27-2009, 05:55 PM
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Re: 87 Iroc LT1 Single Turbo Build

My heads sold!

and whats this.... Ported AFR 195s on the way??? whaaaaa

Compression should now be in the 8.5-9.0 range depending on IF i mill the heads or how much I mill them

Heads flow 300/209 @ .600 lift

Got them for a steal!

Jay
Old 10-21-2009, 04:22 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well some more parts in hahaha.

As you see my Ported AFR's are in. They are dissasembled so I can hot tank them and mill them to ensure they are 100% true.
AFR 195's
2.055/1.600 valves
Ported.

FLOW INT EXH
.100 71.7 52.8
.200 143.4 105.5
.300 208.6 147.2
.400 247.3 185.5
.500 276.3 203.4
.600 293.7 208.5
.650 299.1 211.3

Ordered some 16awg 1 5/8 bends with the collectors to build some tubular headers ...it is a weld up kit, but I bought it for the 90's basically. So it wont go together as the kit is suppose to. It was just alot cheaper to buy a kit then to buy separate bends.

Also I designed some SBC round port flanges using the LT1 bolt pattern at work, then CNC and surface ground them

The turned out perfect, I bolted them to the AFR's and the ports line up mint!


Jay




Last edited by Jay_rich; 10-21-2009 at 04:26 PM.
Old 10-21-2009, 04:48 PM
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Re: 87 Iroc LT1 Single Turbo Build

sweet!! you gonna massage those exhaust port to match your nice flanges?
Old 10-21-2009, 04:51 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by iroc a 86 berli
sweet!! you gonna massage those exhaust port to match your nice flanges?
No I think Im gonna leave them just incase down the road I sell the heads. dont wanna screw anyone over if there D-ports dont seal haha

PS my old hotside is forsale and was redone with 1/8 thick pipe for the crossover!

Jay
Old 10-22-2009, 05:19 AM
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Re: 87 Iroc LT1 Single Turbo Build

those flanges turned out nice. it must be nice to have access to a CNC! do you know who did the port work on the heads?? they should liven it up a little.
Old 10-23-2009, 09:59 PM
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Re: 87 Iroc LT1 Single Turbo Build

Killer build!!!! I wanna turbo soooo Bad!!!!!
Not sure whether I want a Rear Mount or Front Mounted system (Just hate throwing away a $1200.oo exhaust system.....)
I Gotta learn to weld though.... (been wantin to do that for a long time)
Keep up the good work and keep postin!!!!
Consider me subsribed
Old 10-27-2009, 10:13 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well I started on the tubular headers, took about 2H total maybe so far to get this far.
Seems to be working good!

Jay

Old 10-29-2009, 04:59 PM
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Re: 87 Iroc LT1 Single Turbo Build

Woot a small amount more of progress, went over and finish welded the tubes together, then tacked it to the flange and welded the ends together.
Tomorrow I will bring it to work and up the ends all to one length then weld the collector on!

And yes it looks tight but I am going to redo the brake lines to clear good. And all the engine harness is binded up on them bc its just hanging there.

Jay


Old 10-31-2009, 05:12 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well I got my new seats to add to the collection of parts to move to the new house haha


Jay


Old 11-02-2009, 07:09 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well the driver side is done other then the 3"-2.5" reducer and the V-band.

The collector turned out really good! Was simple to weld and fill the gaps too...progress will be slow for the next few weeks as I move to my house this weekend and have some hardwood to lay and a bench to build in the garage!



Jay


Old 11-21-2009, 08:40 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well got some stuff off the car......took me 3 hours , then god bored today and built a bench! thanks to steve for lending a hand with the bench!

Will prob finish the hotside then yank the motor and paint the bay! Also cut the rad support out and make a rad mount.


Apparently the lens was dirty hahaha

Jay




Old 11-22-2009, 10:47 AM
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Re: 87 Iroc LT1 Single Turbo Build

Reminds me of when I totally redid my SRT-4. I wish I had the money to do this to my Camaro.
Old 11-22-2009, 05:21 PM
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Re: 87 Iroc LT1 Single Turbo Build

coming along nice!!
like the bench as well, but whats with the stang calendar!? just kidding.
Old 11-25-2009, 11:51 AM
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Re: 87 Iroc LT1 Single Turbo Build

**** I hate summit, just spent a bunch more!
Also I got the passenger header pretty well done, will finish up today... Also got my Single plane High rise intake! Its gonna look badass!
Pics to come tonight maybe!
Order comming...
Fast 1375 CFM TB
MSD-8366 Distributor
edlebrock Fuel rails
misc fittings and bungs
3- 2.5inch J bends
2- 3to2.5 reducers
Spark plug wire terminals
Distributor hold down kit
Jay
Old 11-25-2009, 01:12 PM
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Re: 87 Iroc LT1 Single Turbo Build

very badass.
Old 11-25-2009, 06:28 PM
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Re: 87 Iroc LT1 Single Turbo Build

Well the headers are done... no clue where to place the turbo yet, seriously contemplating going back to a regular waterpump bc the electric takes up too much space. Well see tho.

Jay


Old 11-26-2009, 09:11 PM
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Re: 87 Iroc LT1 Single Turbo Build

looks great so far.. not sure where to go with the turbo tho. Battery tray area is probly the best place

Who is doing the EFI conversion on the intake?
Old 11-26-2009, 09:48 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Orr89RocZ
looks great so far.. not sure where to go with the turbo tho. Battery tray area is probly the best place

Who is doing the EFI conversion on the intake?
Yea spent another hour trying to figure it out, it sucks....ill probably do it at work on a CNC or bridgeport :P, then get someone to weld some bunks ill make on the lathe!

Jay
Old 11-26-2009, 09:58 PM
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Re: 87 Iroc LT1 Single Turbo Build

I guess they dont make a LT1 EFI single plane? I was looking for someone to do one for me for reasonable price but couldnt find anything so i just went Victor EFI. Didnt see one for LT1 but possibly it could be adapted to LT1 head bolt pattern. I"ve seen Stealth Rams converted to LT1 before and I did the LT1 manifold to SBC conversion before.
Old 11-27-2009, 06:49 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Orr89RocZ
I guess they dont make a LT1 EFI single plane? I was looking for someone to do one for me for reasonable price but couldnt find anything so i just went Victor EFI. Didnt see one for LT1 but possibly it could be adapted to LT1 head bolt pattern. I"ve seen Stealth Rams converted to LT1 before and I did the LT1 manifold to SBC conversion before.
There is an EFI version of mine but i got mine for 200 less....so I just am awaing my my dizzy so i can make sure everything is aligned and drill it.

Sadly they dont make an LT1 version

Jay
Old 11-27-2009, 08:06 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Jay_rich
There is an EFI version of mine but i got mine for 200 less....so I just am awaing my my dizzy so i can make sure everything is aligned and drill it.

Sadly they dont make an LT1 version

Jay

I gotta say this is a great build.

That Single Plane intake not being an LT1 intake, how well do the ports line up on this?
Old 11-27-2009, 09:28 AM
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Re: 87 Iroc LT1 Single Turbo Build

is the lt1 intake not very good for boost?

I'm kinda getting parts together to put an lt1 intake on my car that's supercharged so I can put the nicely ported super ram on the other n/a car I'm building. thinking I'd get better use out of them that way.

I didn't spend any time researching the lt1 intake and boost thou, just figured the shorter runner would be good up top, and maybe help me hook up better down low than the tuned super ram effect.

should I not be doing this swap? I'm going to use the northstar coil pack setup so I don't have to run a dizzy with the lt1.
Old 11-27-2009, 10:05 AM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by ???
is the lt1 intake not very good for boost?

I'm kinda getting parts together to put an lt1 intake on my car that's supercharged so I can put the nicely ported super ram on the other n/a car I'm building. thinking I'd get better use out of them that way.

I didn't spend any time researching the lt1 intake and boost thou, just figured the shorter runner would be good up top, and maybe help me hook up better down low than the tuned super ram effect.

should I not be doing this swap? I'm going to use the northstar coil pack setup so I don't have to run a dizzy with the lt1.
No its a good intake but I saw a compairison on camaroZ28…guy has a D1sc running 14psi same tunes same gas etc…picked up 30whp and 80wtq switching from a PORTED lt1 intake to a PORTED victor JR. Lost a little down low he said due to the 6 speed. I always wanted to go single plane, Main reasons is a lot more ways to run my cold side piping and I am probably going to get a SBC thermostat neck that can rotate now.

Jay
Old 11-27-2009, 10:16 AM
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Re: 87 Iroc LT1 Single Turbo Build

hmmm, well I guess I'll go ahead with my swap. but 80ft lbs sounds like a hell of a lot.
maybe I'll do a little research and see what this swap would cost me. but that TB doesn't look cheap

if the tune was the same, are you sure it didn't just run leaner and make more power because of it? 80 just sounds like a lot of TQ with only 30hp... anyways. cool build. good luck
Old 11-27-2009, 12:40 PM
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Re: 87 Iroc LT1 Single Turbo Build

Originally Posted by Jay_rich

hey thats a familar looking intake! pro products?
Old 11-27-2009, 12:48 PM
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Re: 87 Iroc LT1 Single Turbo Build

Hard to say with the tune, i'm willing to bet single plane and miniram type intakes will require different tunes so the big gain in power may have been from leaner conditions with the singleplane

Main reason i went with singleplane is because its suppose to be better for air distribution and since i planned on running batch fire code $59, i needed to ensure air distribution. I saw air problems with the HSR and was worried boost would complicate those matters.

Depends on the setup but if you go singleplane with elbow for lsx type throttle bodys, just use a stock LS1 TB. I run mid high 9's on my stock TB


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