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Iroc LQ4, S480 turbo build

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Old Jun 8, 2015 | 12:50 PM
  #151  
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Car: 1988 Iroc-Z T-top
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Re: Iroc LQ4, S480 turbo build

Nice build! Do you think you could have fit a/c in with this setup?
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Old Jun 8, 2015 | 08:24 PM
  #152  
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Re: Iroc LQ4, S480 turbo build

Thanks! Yeah I would imagine so with the fender exit exhaust. There's plenty of room.
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Old Jun 11, 2015 | 09:45 PM
  #153  
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Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Well I guess nobody here likes Turbo LS swaps
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Old Jun 11, 2015 | 10:02 PM
  #154  
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Car: 1988 Iroc-Z T-top
Engine: 5.7
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Re: Iroc LQ4, S480 turbo build

I do but it's hard to find one similar to what I'm trying. I want to keep my a/c and put the exhaust out the back and not the fender because mine is a street car.
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Old Jun 11, 2015 | 10:04 PM
  #155  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Mine is also a street car. I can and will put the 4" out the back once I install my K member. Anything can be done!
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Old Jun 11, 2015 | 10:07 PM
  #156  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

Are u putting the a/c back? I'm sure anything can be done. But getting a 4" pipe passed the a/c is going to be a task. It will get done on my end one way or another tho.
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Old Jun 11, 2015 | 10:07 PM
  #157  
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Car: 1988 Iroc-Z T-top
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Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

I hope everyone isn't replying because they are watching this cavs game!

Last edited by Rubbercity_Iroc; Jun 11, 2015 at 10:08 PM. Reason: Forgot something
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Old Jun 11, 2015 | 10:09 PM
  #158  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

No I'm not. A twin setup would be a lot easier with A/C. Smaller turbos and smaller pipes.
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Old Jun 11, 2015 | 10:13 PM
  #159  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

That's one thought that I've contenplated. Twin 366's
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Old Jun 11, 2015 | 10:15 PM
  #160  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Twin 366's is like a 1500whp setup
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Old Jun 11, 2015 | 10:22 PM
  #161  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

Don't really need that much but the prices really didn't look to be much cheaper going even smaller. 750 rwhp is plenty for me.
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Old Jun 11, 2015 | 10:23 PM
  #162  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

How much hp is your setup?
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Old Jun 11, 2015 | 10:42 PM
  #163  
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Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

Rollbars ,slicks and a trans brake on a street car? Looks like a street legal track car.
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Old Jun 12, 2015 | 07:28 AM
  #164  
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Car: '91 Camaro
Engine: Mild 283
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Re: Iroc LQ4, S480 turbo build

Shawnc:

I saw your post..you deleted it though. People are into boring LT1 swaps. Lol.

Love the work you've done on your 3rd gen!



EDIT: Nevermind.. I just found your post.. its #153. Oh well, my reply above is a reply to #153.

Last edited by BDR; Jun 12, 2015 at 07:49 AM.
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Old Jun 15, 2015 | 11:20 PM
  #165  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Haha seems to be the way it is around here! I better LT1 swap mine now...

No idea what kind of power it makes.. Its on about 12 psi right now. I took off the boost controller to figure out the new suspension and transbrake launches. It feels pretty damn good.
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Old Jun 15, 2015 | 11:31 PM
  #166  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

I guess it's like money if you know exactly how much u got u don't have enough lol
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Old Jun 15, 2015 | 11:37 PM
  #167  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Well, I have an idea about where its at but, I'd rather see the times I want out of it. Dyno numbers don't mean much to me
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Old Jun 18, 2015 | 01:09 PM
  #168  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

I've been working on fixing a few issues. First off, throwing belts! I switched out the tensioner pulley for a supercharged buick pulley, FIXED that issue.

I need to get the car aligned but its damn near impossible to get anyone to do it around here. That's an ongoing/pending issue.

I'm a total moron and was doing too many things at once, I forgot to install my hoodpins. As you can imagine what happened next... My bolt on hood doesn't bolt on anymore. Luckily, no major damage reported to the top of it, I think I can convert it to a pin on temporarily. No pics!

Lastly, kinda stupid. I got the trans back from a rebuild and I have no park. The pawl in the trans is not engaging. I believe the pan can be dropped to fix that.

No major issues, I'd like to hit the track Saturday. We'll see how it goes and I'll update with a 9 sec. pass if I do. Ha!
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Old Jun 21, 2015 | 06:31 PM
  #169  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

10 lbs. of boost and working on the suspension all day. Best pass of the day.
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Old Jun 21, 2015 | 08:22 PM
  #170  
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Car: '91 Camaro
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Re: Iroc LQ4, S480 turbo build

Originally Posted by shawnc16
10 lbs. of boost and working on the suspension all day. Best pass of the day.
You got yourself a 9sec ride with that mph...with ONLY 10# boost!
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Old Jun 22, 2015 | 10:51 AM
  #171  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

If I can get it to hook! Headed to a better track this Saturday
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Old Jun 22, 2015 | 11:07 AM
  #172  
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Car: '91 Camaro
Engine: Mild 283
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Re: Iroc LQ4, S480 turbo build

Originally Posted by shawnc16
If I can get it to hook! Headed to a better track this Saturday
Whats bad *** is 10#. That's it. I haven't looked at your engine specs yet..but that's what's impressive to me.
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Old Jun 22, 2015 | 11:10 AM
  #173  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Yeah it's making good power now. It's just a cam only 6.0 $250 short block I pulled outta the junk yard
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Old Jun 22, 2015 | 11:29 AM
  #174  
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Car: '91 Camaro
Engine: Mild 283
Transmission: TH400
Re: Iroc LQ4, S480 turbo build

Originally Posted by shawnc16
Yeah it's making good power now. It's just a cam only 6.0 $250 short block I pulled outta the junk yard
Damn..I paid 2.5k for mine with 75k miles on it then had it rebuilt. Your setup is awesome bang for the buck.
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Old Jun 22, 2015 | 11:34 AM
  #175  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Ouch! I paid $150 for the heads. I spent a ton on valvetrain and head studs but that's about it. Its by far the cheapest thing I've got going on for the entire drivetrain.

I'll turn it up but I want to iron out the suspension to get my 60' down first. Hopefully progress gets made this weekend.

Last edited by shawnc16; Jun 22, 2015 at 11:50 AM.
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Old Jul 6, 2015 | 08:43 PM
  #176  
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From: Akron, OH
Car: 1988 Iroc-Z T-top
Engine: 5.7
Transmission: 700r4
Axle/Gears: N/A
Re: Iroc LQ4, S480 turbo build

Awesome times for a car u still haven't turned up or worked the kinks out. Congratulations man!!
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Old Jul 6, 2015 | 09:28 PM
  #177  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Thanks. I've been chucking serp belts every single pass. It's driving me nuts. After that issue is resolved I'll turn it up and let it eat. Best 60' so far was a 1.45' at a better track. I'd love to see a 1.3x

Last edited by shawnc16; Jul 7, 2015 at 12:56 AM.
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Old Jul 7, 2015 | 04:51 AM
  #178  
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Re: Iroc LQ4, S480 turbo build

Movin out real good! Looks like the suspension seems to be working well!

Jay
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Old Jul 7, 2015 | 08:15 AM
  #179  
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Car: '91 Camaro
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Re: Iroc LQ4, S480 turbo build

What was the ET/MPH
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Old Jul 7, 2015 | 01:55 PM
  #180  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Same MPH (same boost) The better 60' netted me a 9.84 ET finally.
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Old Jul 10, 2015 | 09:51 PM
  #181  
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Re: Iroc LQ4, S480 turbo build

Congrats on the run. That's awesome on a junkyard cam 6.0. I'm hoping one day to put 10-15lbs with my 6.0 and D1SC.
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Old Jul 11, 2015 | 02:24 AM
  #182  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Thanks, it feels slow now.. I just put the boost controller back on. Hitting the track today!
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Old Jul 11, 2015 | 03:58 PM
  #183  
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Re: Iroc LQ4, S480 turbo build

very cool build! looking around for a third gen to do something similar, but with a T56. wondering how tough it is to swap in a t56 into an auto car?
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Old Jul 13, 2015 | 12:06 PM
  #184  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Not too tough. You're on the right website to figure it out.
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Old Jul 13, 2015 | 12:22 PM
  #185  
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Re: Iroc LQ4, S480 turbo build

Originally Posted by 8SEC6SPD
very cool build! looking around for a third gen to do something similar, but with a T56. wondering how tough it is to swap in a t56 into an auto car?
a hole saw and a sawzall takes care of 99% of it
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Old Jul 13, 2015 | 01:34 PM
  #186  
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Re: Iroc LQ4, S480 turbo build

Don't forget a steady hand and patience!
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Old Jul 21, 2015 | 10:28 PM
  #187  
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From: Lapeer, MI
Car: 86 IROC, 89 GTA
Engine: 350 blocks, both of em
Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

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Old Jul 21, 2015 | 10:40 PM
  #188  
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Re: Iroc LQ4, S480 turbo build

Very nice!
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