ZZ3 Turbo Iroc - Round Three
04-13-2014, 10:19 PM
#703
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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04-19-2014, 09:21 AM
#707
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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04-19-2014, 09:48 AM
#708
Re: ZZ3 Turbo Iroc - Round Three
i think it would be a wise decision to leave the gtr alone. its a badass car in stock form, and everybody will already be oogling over it anywhere you go. leave it sealed up, stock, and reliable.
i know the ysi car i've been working on had spewed some water out the overflow nipple on the radiator before i hooked the reservoir up, and that was just sitting there, no dragstrip passes. maybe try fixing that overflow hose and see if it still does it?
your upgrade list will make it faster for sure!!!
i know the ysi car i've been working on had spewed some water out the overflow nipple on the radiator before i hooked the reservoir up, and that was just sitting there, no dragstrip passes. maybe try fixing that overflow hose and see if it still does it?
your upgrade list will make it faster for sure!!!
04-19-2014, 09:59 AM
#709
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
91' bird 305 TBI T-5, trick flow heads, 4.10 gears, full UMI setup, track times coming soon!
04-19-2014, 04:26 PM
#711
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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04-19-2014, 06:29 PM
#712
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
add a new intake to that list
hsr
miniram
converted lt1
single plane / elbow
anything but the tpi
04-19-2014, 08:02 PM
#714
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
Honestly if I ditch the tpi it defeats the whole purpose of staying Gen 1. I'd need a controller for the 4L80 anyway so it would make sense to go 5.3 + 4L80e + ecm/harness for $1200 than to dump $700 into a gen 1 intake and another $700 into a trans controller. I'd need heads anyway to make the intake worthwhile.. and I could probably sell my headers for almost enough to cover the LS hardware. So if I go much faster it would be a LS.
04-19-2014, 08:54 PM
#715
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Re: ZZ3 Turbo Iroc - Round Three
GET A F.I.R.S.T INTAKE
04-19-2014, 10:27 PM
#716
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
Honestly if I ditch the tpi it defeats the whole purpose of staying Gen 1. I'd need a controller for the 4L80 anyway so it would make sense to go 5.3 + 4L80e + ecm/harness for $1200 than to dump $700 into a gen 1 intake and another $700 into a trans controller. I'd need heads anyway to make the intake worthwhile.. and I could probably sell my headers for almost enough to cover the LS hardware. So if I go much faster it would be a LS.
hsr is 400 complete with rails , and jakes transmission has a standalone 4l80 controller for 210 shipped
or 179$
http://www.ebay.com/itm/World-Products-061040FI-SBC-305-350-Chevy-Motown-EFI-Aluminum-Intake-Manifold-/161246853903?pt=Motors_Car_Truck_Parts_Accessories&hash=item258b0fbb0f&vxp=mtr+ elbow and tb fuel rails are 55 $ i know u already have a regulator
or instead of the elbow and tb u can use one of these
http://www.ebay.com/itm/1000-Cfm-4-Barrel-4150-Billet-Throttle-Body-/181354113856?pt=Motors_Car_Truck_Parts_Accessories&hash=item2a398c2b40&vxp=mtr
04-19-2014, 11:24 PM
#717
Re: ZZ3 Turbo Iroc - Round Three
errbody has an ls swapped (insert any kind of car you can think of), but very few have a stock looking thirdgen with 80's stuff running 9s. thats what makes your car so cool, imo. going to an ls would make it like all the others. will still be cool, though.
04-20-2014, 11:22 AM
#718
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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04-20-2014, 11:33 AM
#719
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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04-20-2014, 01:37 PM
#720
04-20-2014, 01:48 PM
#721
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
http://www.jakesperformance.com/4L80E_Components.html
theres also a few other options in the 500-600 $ price range
if u dont mine porting the intake to match ur heads there is an hsr copy for 285$ shipped + the 55$ rails
here is one on my engine
04-22-2014, 11:22 PM
#722
Senior Member
Re: ZZ3 Turbo Iroc - Round Three
Damn Nissans are too finicky. That's why I got rid of mine. Albeit it was a Maxima... got a G8 now...
05-09-2014, 12:55 AM
#725
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Car: 92 Formula 350
Engine: L98 with a T-76
Transmission: ArtCarr 700-R4
Axle/Gears: Bone stock 10bolt and 3.23's
Re: ZZ3 Turbo Iroc - Round Three
I understand the TPI intake design is not ideal, but I can prove it can and will move a third gen down the 1/4 mile at an impressive rate. There are turbo LS swapped third gens that don't clear the 1/4 mile faster than my TPI junk.
05-09-2014, 01:31 AM
#726
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
noone is saying they dont work . but u know as well as the rest of us that if u swapped that tpi intake out for a single plane efi or hsr etc the car would pick up a ton of power just from swapping the intakes
05-09-2014, 01:58 AM
#727
Re: ZZ3 Turbo Iroc - Round Three
Originally Posted by TurboedTPI
I understand the TPI intake design is not ideal, but I can prove it can and will move a third gen down the 1/4 mile at an impressive rate. There are turbo LS swapped third gens that don't clear the 1/4 mile faster than my TPI junk.
05-09-2014, 07:49 PM
#728
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Re: ZZ3 Turbo Iroc - Round Three
F.F.I intake!
05-15-2014, 08:42 AM
#729
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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06-22-2014, 09:41 PM
#731
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Car: 87 Iroc
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Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
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06-22-2014, 09:53 PM
#732
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06-27-2014, 07:25 PM
#734
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Car: 87 Iroc
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06-27-2014, 09:33 PM
#736
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06-28-2014, 12:17 AM
#737
Re: ZZ3 Turbo Iroc - Round Three
Roadkill style?
I will say I would chuckle to find out you were actually making more power than you thought you were but the box/converter was eating it up, and you were actually more at the limit of your fuel system than you thought you were.
I will say I would chuckle to find out you were actually making more power than you thought you were but the box/converter was eating it up, and you were actually more at the limit of your fuel system than you thought you were.
06-28-2014, 01:25 AM
#738
Re: ZZ3 Turbo Iroc - Round Three
I got tired of the overflow tube being melted from the turbo heat so I built up a -6 line with AN fittings. It turns out the male flair fittings for -6 fit the hose nipples nice after a little trimming down of the barb. Mixed up some JB Weld and slipped a 90 on the outlet. Result: a nice clean exit for the line and no more melting hose.
For fueling I ordered a -8 to -6,-6 Y. Also when I bought the -6 line I bought enough to make the rest of the fuel lines needed to have dual -6 inlets on the fuel rails. Before I get too far into that project though, I've decided I need to come up with a spare hood that I can chop up. I want to simulate making the hood vents functional and compare underhood temps and the effect on the fueling issue. I have always observed the fuel temp to be over 125F when the problems are occurring. Today was no exception. So basically I need a cheap hood to cut some holes in and bolt it on to see what happens. Of course I check craigs and all of the hoods I've seen in the past six months are long gone and nothing is posted at this time.
Here is the new overflow line:
For fueling I ordered a -8 to -6,-6 Y. Also when I bought the -6 line I bought enough to make the rest of the fuel lines needed to have dual -6 inlets on the fuel rails. Before I get too far into that project though, I've decided I need to come up with a spare hood that I can chop up. I want to simulate making the hood vents functional and compare underhood temps and the effect on the fueling issue. I have always observed the fuel temp to be over 125F when the problems are occurring. Today was no exception. So basically I need a cheap hood to cut some holes in and bolt it on to see what happens. Of course I check craigs and all of the hoods I've seen in the past six months are long gone and nothing is posted at this time.
Here is the new overflow line:
I've got an IROC hood in middle GA. You'd be doing me a favor by taking it away if you ever end up travelling up I-75 to Atlanta for business or something, I'm a stone's throw from the interstate. It's yours for free if you want it. Rust holes make it pretty much useless and worthless, but it's straight. I bought it for the louvers it had on it but I dont have a truck to haul it off anymore.
Last edited by InfernalVortex; 06-28-2014 at 01:28 AM.
06-28-2014, 08:42 PM
#739
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Car: 87 Iroc
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Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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06-29-2014, 12:46 AM
#740
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
Thanks for the offer.. I won't be up that way till September or I would "borrow" it for sure 
It's definitely making some good power but sometimes it is insanely too rich and other times it loses pressure so the fueling capacity drops when the fuel in the tank gets hot. I still say the fuel is boiling in the vacuum of the pump when the tank temp climbs.
We are going to pull the hood for a test, maybe tomorrow.. but previous times I've done that on a boosted car always ends up getting oily haze on the windshield. Maybe for a day though! I suspect it will give zero problems with that much cooling air going around the runners & fuel rails.
It's definitely making some good power but sometimes it is insanely too rich and other times it loses pressure so the fueling capacity drops when the fuel in the tank gets hot. I still say the fuel is boiling in the vacuum of the pump when the tank temp climbs.
We are going to pull the hood for a test, maybe tomorrow.. but previous times I've done that on a boosted car always ends up getting oily haze on the windshield. Maybe for a day though! I suspect it will give zero problems with that much cooling air going around the runners & fuel rails.
i will make u a hell of a deal on a procomp hsr if u want it
225$'s + shipping i have one sitting on the shelf , it was going to go on my truck but ive decided im leaving the truck stock
its brand new in the package never even pulled it out of the plastic but i did open the box , they go for 285+ shipping on flebay
06-29-2014, 07:02 PM
#741
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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06-29-2014, 07:09 PM
#742
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
Thought u already bought a gt-R
91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades......... 24mpg @ 2300rpm hwy 65mph ........ 8.63@ 85mph 1/8th on street tires... 8.000's soon
91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades......... 24mpg @ 2300rpm hwy 65mph ........ 8.63@ 85mph 1/8th on street tires... 8.000's soon
06-29-2014, 10:07 PM
#743
Senior Member
Re: ZZ3 Turbo Iroc - Round Three
Ok. Questions...
What muffler?
Do you have the heat shield between the muffler and the fuel tank?
What fuel pump again?
My RS has a Z28 pump in it. I removed my heat shield a while back. I can't remember why I removed it but the fuel pump is LOUD after driving it and letting it heat soak.
Maybe the pump is actually bad? Maybe the regulator is bad? Maybe the pump is overheating? Maybe the tank is getting heat soaked by the exhaust?
Try dumping the exhaust or refabbing the exhaust to dump on passenger side only with a bullet muffler? Have you checked the temperature of the gas tank? I haven't read this thread in a while. I'm on my cell phone and didn't feel like scrolling back...
Just trying to help...
What muffler?
Do you have the heat shield between the muffler and the fuel tank?
What fuel pump again?
My RS has a Z28 pump in it. I removed my heat shield a while back. I can't remember why I removed it but the fuel pump is LOUD after driving it and letting it heat soak.
Maybe the pump is actually bad? Maybe the regulator is bad? Maybe the pump is overheating? Maybe the tank is getting heat soaked by the exhaust?
Try dumping the exhaust or refabbing the exhaust to dump on passenger side only with a bullet muffler? Have you checked the temperature of the gas tank? I haven't read this thread in a while. I'm on my cell phone and didn't feel like scrolling back...
Just trying to help...
06-29-2014, 10:09 PM
#744
Senior Member
Re: ZZ3 Turbo Iroc - Round Three
Maybe you're overheating the fuel pump with that volt booster? When does it swing to 18 volts? You might be working that pump too hard. I don't know. Just making suggestions.
06-29-2014, 11:02 PM
#745
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Car: 87 Iroc
Engine: Turbocharged 5.7 Pro-Fl-XT
Transmission: 700R4 for moment
Axle/Gears: 3.25 9 inch
Re: ZZ3 Turbo Iroc - Round Three
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06-29-2014, 11:45 PM
#746
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Car: 1991 firebird
Engine: TBI 305 (built)
Transmission: T5
Axle/Gears: 4.10
Instead of the canister type cooler u were talking about u gout try to fan up a factory type metal fuel line in front of the radiator in say 6 u bends before it enters the fuel rails...
Idk just trying to splurge ideas on how to get fuel temps down
91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades......... 24mpg @ 2300rpm hwy 65mph ........ 8.63@ 85mph 1/8th on street tires... 8.000's soon
Idk just trying to splurge ideas on how to get fuel temps down
91' bird 305 TBI T-5, trick flow 175 cc heads, 4.10 gears, lots of suspension upgrades......... 24mpg @ 2300rpm hwy 65mph ........ 8.63@ 85mph 1/8th on street tires... 8.000's soon
06-30-2014, 12:26 AM
#747
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Car: 89 RS 89 iroc 87 firebird
Engine: 3.1 Turbo/ 355 twin turbo
Transmission: a4 w/ 4500 stall/ a4 / t5
Axle/Gears: strange s60 /w 3:42's
Re: ZZ3 Turbo Iroc - Round Three
Most of today I was dumping through the cutout which lets out in the stock cat location. Def not muffler induced heating. It's been proven to do it in two passes a the strip, cold of the trailer. Now just plain old heat off the engine, going under car and heating the tank, maybe that.. but just in two passes and that much fuel I don't think so.
The fuel temp coming out of the rail was consistently 125 with an entry of 120-121. That is measuring the outside of the fittings so my next plan is to build a sensor that I can put in the middle of the hose fittings on either the feed or return line. Then I can document the exact temp, rate of increase, etc.
No I've had four pumps, with and without booster. Not a specific pump or because of booster, which only goes to 18v in boost anyway.
Yes I got the GT-R.. was just having a relapse to how I was feeling last time I troubleshot this problem!
The fuel temp coming out of the rail was consistently 125 with an entry of 120-121. That is measuring the outside of the fittings so my next plan is to build a sensor that I can put in the middle of the hose fittings on either the feed or return line. Then I can document the exact temp, rate of increase, etc.
No I've had four pumps, with and without booster. Not a specific pump or because of booster, which only goes to 18v in boost anyway.
Yes I got the GT-R.. was just having a relapse to how I was feeling last time I troubleshot this problem!
gm coolant temp sender , and u can log it with a spare input on the megasquirt
07-01-2014, 04:55 AM
#749
Re: ZZ3 Turbo Iroc - Round Three
I don't think 120 degrees is a big deal, that's like a fever. I still think you should save the frustration and just buy a complete fuel system. Just go to the lake for a couple of weekends instead of installing temp sensors and driving yourself crazy.
07-01-2014, 08:02 AM
#750
