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Iroc LQ4, S480 turbo build

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Old May 10, 2014 | 10:54 PM
  #101  
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Re: Iroc LQ4, S480 turbo build

I can give you a material list. I would rather not build another set, its pretty simple but a lot of work.
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Old May 10, 2014 | 11:09 PM
  #102  
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Car: 72 nova/ 90 camaro rs,04 suburban
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Re: Iroc LQ4, S480 turbo build

looking good, I keep looking for updates, seen one about maybe a fire up next weekend that would be cool!
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Old May 10, 2014 | 11:14 PM
  #103  
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Re: Iroc LQ4, S480 turbo build

That's the plan! Its a 2 steps forward, 1 step back sort of process right now. I'm knocking things off my checklist though.
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Old May 23, 2014 | 02:02 PM
  #104  
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Re: Iroc LQ4, S480 turbo build

Originally Posted by 90camaro355rs
well all on paper its turned up to push 10.4 lbs of boost its somewhere in the neighbor hood of 900 plus maybe 8 something to the rear wheels, its a full roller engine, msd electronics, 15.5 compression with boost, 9.1 just motor. I had to have a clutch made for it, kept blowing the others up. It doesn't move much, I have to run 114 plus octane or it detonates badly. It took me a year to build, wanted an 8-71 but my machinist said it wouldn't be proportioned right and look funny on a small block, so I opted for the 6-71.

Its in my 72 nova muncie 4 speed 10.5 rear end full spool, 456 gears moser axles with c clip eliminators.
On paper you're nowhere near 900hp on a 360ci engine and a 6-71 with only 10# boost. Sorry bro. Waaayyyyy off.
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Old May 23, 2014 | 02:03 PM
  #105  
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Re: Iroc LQ4, S480 turbo build

@shawnc16:

nice build. I have the exact same engine setup, same cam..differences are, I have a s475 and a backhalved 91 and I'm going blow-thru.
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Old May 23, 2014 | 06:05 PM
  #106  
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Axle/Gears: 342/411/456/ moser axles
Re: Iroc LQ4, S480 turbo build

Originally Posted by BDR
On paper you're nowhere near 900hp on a 360ci engine and a 6-71 with only 10# boost. Sorry bro. Waaayyyyy off.
BDR, Thanks for your input, I know better since I am the one that built it! Thanks for your input though!
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Old May 23, 2014 | 09:37 PM
  #107  
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Re: Iroc LQ4, S480 turbo build


Well here ya go. In case anyone was wondering...
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Old May 24, 2014 | 11:44 AM
  #108  
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Re: Iroc LQ4, S480 turbo build

Hey man, just came across your build. Awesome job! What material did you use for log manifolds and hot side piping?
Thanks
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Old May 24, 2014 | 11:50 AM
  #109  
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Re: Iroc LQ4, S480 turbo build

Manifolds are schedule 10 pipe and weld els. The hotside is just 304 SS 16 gauge.
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Old May 25, 2014 | 01:29 PM
  #110  
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Re: Iroc LQ4, S480 turbo build

They look great! How much do they weigh? Thinking of doing some for mine. It's a big block though.
Thanks
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Old May 25, 2014 | 03:27 PM
  #111  
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Re: Iroc LQ4, S480 turbo build

Not sure on the weight. They aren't too bad honestly.
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Old May 25, 2014 | 07:09 PM
  #112  
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Car: 72 nova/ 90 camaro rs,04 suburban
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Axle/Gears: 342/411/456/ moser axles
Re: Iroc LQ4, S480 turbo build

Originally Posted by shawnc16

Well here ya go. In case anyone was wondering...
That is truly cool! Nice to hear it run after all the work you have done! Sounds good too, Can't wait to see it go down the road!
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Old May 25, 2014 | 09:56 PM
  #113  
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Re: Iroc LQ4, S480 turbo build

Originally Posted by shawnc16
Idle clip - YouTube

Well here ya go. In case anyone was wondering...
OMG please please please more vids!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! amazing build, EXCELLENT WORK!
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Old May 27, 2014 | 03:30 PM
  #114  
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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

I haven't been really taking any videos in the tuning process. Its kinda tough to make changes and watch things while holding my phone at the same time. I did however take it for a spin around the block and do a burnout in the driveway Haha!
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Old Jun 4, 2014 | 08:29 AM
  #115  
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Car: 86 IROC, 89 GTA
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Drove it to work yesterday, it's friggin' loud! Pulls pretty hard on 10 psi. The tune is pretty close. I have a Dyno day scheduled for this Saturday, if all goes well it's going to the strip on Sunday too!
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Last edited by shawnc16; Jun 4, 2014 at 08:33 AM.
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Old Jul 7, 2014 | 09:43 AM
  #116  
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Re: Iroc LQ4, S480 turbo build

Well, had some issues along the way. I haven't updated much but I did get the car out for a track day. Pretty impressed with it so far. 12lbs. Of boost, old slicks and no shift light! My factory tach is off by 400 rpm too.

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Old Dec 2, 2014 | 08:03 PM
  #117  
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Re: Iroc LQ4, S480 turbo build

Awesome build! Nice work.
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Old Dec 2, 2014 | 10:34 PM
  #118  
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Re: Iroc LQ4, S480 turbo build

Are you running a stock k member? If so how do you plan to run the exhaust out the back?
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Old Dec 3, 2014 | 05:13 AM
  #119  
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Re: Iroc LQ4, S480 turbo build

Awesome! Nice build.

Jay
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Old Dec 14, 2014 | 11:28 AM
  #120  
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Car: 86 IROC, 89 GTA
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Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Thanks guys, Yes I do currently have a stock k member. I could fit a 4" pipe between the subframe rail and the engine. The dipstick is currently the only thing in the way. I really would like to upgrade the k member but funding isn't there yet.
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Old Dec 14, 2014 | 09:00 PM
  #121  
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Re: Iroc LQ4, S480 turbo build

Any plans on making more of those hotsides? I'd be in for a set...can't find anything on the market...

Also, what size and backspacing are your rear wheels? Tucks nicely
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Old Dec 14, 2014 | 10:36 PM
  #122  
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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 go on the hotsides. Too much work. Rears are 15x8's with 4.5 BS. 28x10.5 tire
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Old Dec 15, 2014 | 04:02 AM
  #123  
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Re: Iroc LQ4, S480 turbo build

Are you a welder by trade? The quality of you welding on your project is impressive.
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Old Dec 15, 2014 | 06:59 AM
  #124  
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Car: 86 IROC, 89 GTA
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Transmission: 700r4s
Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

No, I do quite a few projects at work. That's mostly where I got my TIG experience. I'm self taught and bought my own machine. Thanks though, I'm getting better!
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Old Dec 18, 2014 | 08:28 AM
  #125  
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Re: Iroc LQ4, S480 turbo build

Awesome project Shawn! Congrats on getting to drive it. I can wait to finish my similar build. Thanks for taking the time to post pics and info. Its nice to get ideas by seeing what others have done before you jump into it yourself.
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Old Dec 18, 2014 | 08:36 AM
  #126  
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Not a problem. Thanks. Obviously there's s few things I wish I did different but I don't think it turned out too bad for my first turbo setup.
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Old Dec 27, 2014 | 09:38 AM
  #127  
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Re: Iroc LQ4, S480 turbo build

did you shave the lip off the turbo housing or just put a silicone coupler over it?
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Old Dec 27, 2014 | 10:07 AM
  #128  
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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

No, it's a factory race cover. This cover is actually from a John Deere generator.
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Old Dec 27, 2014 | 02:03 PM
  #129  
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Re: Iroc LQ4, S480 turbo build

lookin good man. john deere turbos ftw lol
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Old Dec 28, 2014 | 08:36 PM
  #130  
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Ahhh! Updates are coming! The car made plenty of passes down the track this past season. I had traction issues every pass. I had a lot of the old guys at the track asking me about my sanity! Anyway. In search of traction, I decided to make some suspension updates to the front and rear!

I purchased a set of Viking DA rear shocks, rod end panhard bar, LCA's and V6 springs. The current rear setup is poly. I also bought a set of stiff wall 28's at the end of the season.

The front setup is currently a stock k member and a arms and some ST lowering springs. So far I purchased a BMR K Member and A Arms. I need to order coilovers, 90/10 struts and CC plates next.

Other than that, my current ARB is a spohn bar and its been sliding side to side a bit on launch which concerned be. I bought a set of collar sleeves to clamp on the bar to stop that from happening. Hopefully I can get my 60' down with all these changes! So far a best of 1.58 is horrible!

Besides all those things, my last track day resulted in an issue with my trans. I was stuck in 3rd gear. I ended up pulling the trans and it'll go in for a rebuild plus my transbrake will be going in. Next season should be fun

Last edited by shawnc16; Dec 28, 2014 at 08:43 PM.
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Old Dec 29, 2014 | 12:39 AM
  #131  
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Re: Iroc LQ4, S480 turbo build

looks good! havent seen any updates on this car since you tore it apart on MiFbody
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Old Dec 29, 2014 | 12:42 PM
  #132  
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Car: 86 IROC, 89 GTA
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

I may or may not bring it to the next M&G
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Old Dec 29, 2014 | 12:46 PM
  #133  
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Re: Iroc LQ4, S480 turbo build

i still havent been to the M&G i just meet everyone either on woodward or by lending a hand.
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Old Dec 29, 2014 | 12:49 PM
  #134  
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

It's a car show.. I kinda find car shows boring. I'd rather do a cruise or hit up Woodward myself
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Old Dec 29, 2014 | 03:02 PM
  #135  
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Re: Iroc LQ4, S480 turbo build

no i know what it i, just never gotten to bakers yet. and i agree cruising is much more fun.
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Old Dec 29, 2014 | 03:18 PM
  #136  
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

I just realized how much I haven't updated this thread. The car is now intercooled, still on E85 and was mostly on 12 psi but I did bump it to 15 a few times.
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Interior is still a mess.
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And my best pass
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Last edited by shawnc16; Dec 29, 2014 at 03:28 PM.
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Old Dec 29, 2014 | 08:11 PM
  #137  
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Re: Iroc LQ4, S480 turbo build

daammnnn.. thats flyin'!
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Old Dec 29, 2014 | 08:58 PM
  #138  
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Re: Iroc LQ4, S480 turbo build

Yea buddy! Good job!
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Old Dec 30, 2014 | 06:44 AM
  #139  
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Re: Iroc LQ4, S480 turbo build

2015 is gonna be a race to the single digits, i can just tell, lol.
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Old Dec 30, 2014 | 12:24 PM
  #140  
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Car: 86 IROC, 89 GTA
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

First pass in 2015 9.xx
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Old Dec 30, 2014 | 01:42 PM
  #141  
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Re: Iroc LQ4, S480 turbo build

Awesome numbers! I hope to see it around woodward next summer. If I make it out at all. I use to do Friday nights a lot in the summer

Jay
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Old Dec 30, 2014 | 02:16 PM
  #142  
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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

Its been out there a few times Jay. I work 2nd shift so I don't go out Friday nights anymore but usually Saturday I'll shoot down there. Seems like Fridays are the nights to go though. There's going to be a few turbo LS third gens floating around Woodward next season
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Old Dec 30, 2014 | 06:59 PM
  #143  
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Axle/Gears: 10 bolt and 9 bolt, 3.73, 3.23
Re: Iroc LQ4, S480 turbo build

Did some cold weather work today in the garage. Installed the Collars on the ARB. Threw on the LCA's and Panhard bar. One shock relocation bracket was installed and I gave up for the night.
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Old Dec 30, 2014 | 08:08 PM
  #144  
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Re: Iroc LQ4, S480 turbo build

shawn, move those sway bar axle mounts further outward towards lca mounts basically to the bend of the sway bar, and you'll not need those collars to keep it from sliding.
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Old Dec 30, 2014 | 08:12 PM
  #145  
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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 can't. I'd have to cut my back brace again which is a pain! I think the collars will work
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Old Dec 30, 2014 | 08:50 PM
  #146  
Blownz28man's Avatar
Senior Member
15 Year Member
iTrader: (2)
 
Joined: May 2006
Posts: 580
Likes: 0
From: Elk City OK
Car: 92 25th anv z28
Engine: 346 TC78 Turbo
Transmission: 4L80E
Axle/Gears: 3.25 9"Nodular, Strange axles
Re: Iroc LQ4, S480 turbo build

Sweet build, need to get my *** in gear and finish mine! Why you running dual waste gates? Like your iPad mount!
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Old Dec 30, 2014 | 08:53 PM
  #147  
shawnc16's Avatar
Thread Starter
Member
 
Joined: Oct 2004
Posts: 491
Likes: 1
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 ya do! Couple reasons on the gates. The turbo is a twin scroll, space constraints and twin gates offer a little better control. I may change up the drives side to match the passenger side. I think it looks kinda goofy like that.
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Old Dec 31, 2014 | 03:48 AM
  #148  
pmcruz781's Avatar
Junior Member
 
Joined: Nov 2007
Posts: 55
Likes: 0
Car: 1986
Engine: 350
Transmission: t56
Axle/Gears: Auburn 3.73 posi moser axles
Re: Iroc LQ4, S480 turbo build

That shifter you have in your car is out of control
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Old Dec 31, 2014 | 09:43 AM
  #149  
shawnc16's Avatar
Thread Starter
Member
 
Joined: Oct 2004
Posts: 491
Likes: 1
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! I get a lot of questions about it!
Reply
Old Jun 7, 2015 | 09:47 AM
  #150  
shawnc16's Avatar
Thread Starter
Member
 
Joined: Oct 2004
Posts: 491
Likes: 1
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 figure you turbo guys need some motivation. I'm in the middle of a cleanup project. Trying to get all my wiring to a more permanent solution rather than the rats nest I was running last year.
I've made a few improvements this year. Viking DA's in the rear and all rod end suspension with V6 Moog springs. 28x10.5 stiff walls are going on as well.
The trans is getting built with a Griner brake.
Up front I bought a BMR tubular K member and A arms but that wont be installed until Viking releases their front struts. Anyway, the Turbo****** will be out next week!

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