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The Twins for my GTO!

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Old 10-27-2006, 04:16 PM
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Default The Twins for my GTO!
Well after doing some research of my own and talking with various turbo nuts I have come to a final decision for turbos in my car.
For those that don't know the car is being sent to Stenod in Michigan to have some custom fabrication and various other things done.

Setup:
408 iron block with Callies crank built by Erik Koenig (9.0:1 comp)
EDC custom cam - 7500RPMs
10pt roll cage
ET 240cc Heads
Big Stuff 3
HUGE Fuel system - 160# injectors
Stenod custom TT setup
Moser 9" SRA conversion (3.50 Gears)
TH400 Transbrake 4400stall
minitubs
and much much more

These are the turbos that Harlan was going to run, but decided not too, so now I will give thme a good home!

Precision
4202R's

Ball bearing units, water cooled CHRA's.
74mm wheels at the inlet.
T4 style hot side, 1.01 A/R

Precision rates them at 1100HP each.




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Old 10-27-2006, 04:29 PM
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You are insane. I'll be watching your build. Sweet *** turbos man. Good luck
Why such a high compression?
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Old 10-27-2006, 04:32 PM
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Originally Posted by ls1king000
You are insane. I'll be watching your build. Sweet *** turbos man. Good luck
Why such a high compression?
Race Fuel is your friend! haha
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Old 10-27-2006, 04:52 PM
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Looks like your getting serious.
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Old 10-27-2006, 05:05 PM
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You're gonna have to re-name the car from a Goat to a Ram after that setup!

Sounds like an awesome build, wish you luck.
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Old 10-27-2006, 08:36 PM
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Traction? What's that?
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Old 10-27-2006, 08:41 PM
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Thats some bigass turbos, good luck with it.
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Old 10-27-2006, 09:33 PM
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Wow! Will the turbos fit under the stock hood?
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Old 10-27-2006, 09:50 PM
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Didnt you have an F1R on the car? Those twins look sweet.
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Old 10-27-2006, 10:00 PM
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holy jeebus batman
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Old 10-28-2006, 07:55 AM
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Nice!!!!!
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Old 10-28-2006, 08:17 AM
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Wow, your going to have some traction issues, NICE.
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Old 10-28-2006, 08:47 AM
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hehe are they similar to GT42R's????

how much you gunning for??

Chris.
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Old 10-28-2006, 09:05 AM
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Why such a big A/R on the turbine side for twins? I wonder when spool will happen?
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Old 10-28-2006, 10:03 AM
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Originally Posted by chuntington101
hehe are they similar to GT42R's????
They are GT42R's

1.01 is the smallest A/R you can get.

We'll know pretty well how they spool next week, taking a similar turbo/motor combo to the track.
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Old 10-28-2006, 10:12 AM
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I was thinking that because a 1.01 A/R on a single turbo doesnt spool until about 3800, i think.
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Old 10-28-2006, 10:20 AM
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All depends on the coverter Ballbearing don't hurt either.
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Old 10-28-2006, 10:29 AM
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sounds like this will become the fstest goat out there.
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Old 10-28-2006, 10:40 AM
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Those are beautiful, I will be watching this.
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Old 10-28-2006, 11:39 AM
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The smaller turbine housings gave us back pressure issues on our 390ci motor.
We ended up with the 1.28 and it still could be raced off a foot brake.
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