Hahn Racecraft LSJ GT35R Turbo Project PICS RELEASED! - Cobalt SS Network

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Hahn Racecraft LSJ GT35R Turbo Project PICS RELEASED!

2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

Hahn Racecraft LSJ GT35R Turbo Project PICS RELEASED!

Old 12-20-2007, 01:05 AM
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Hahn Racecraft LSJ GT35R Turbo Project PICS RELEASED!

VIDEOS!!! 440WHP 297 WTQ!
All on straight 93 octane! Watch them in order!

Walk around:
http://www.youtube.com/watch?v=7LMtQl7WG3c

18psi:
http://www.youtube.com/watch?v=kXXFCnOIipo

21psi:
http://www.youtube.com/watch?v=oLoNKcrIBEQ








Well as many of you know I have had my car at Hahn Racecraft helping with their prototype stages of the Turbo LSJ conversion they are going to release. Anyway, My LSJ motor is a full built motor.

To start the bottom end has : Stock Crank, Neutral Balance Shafts, JBP Cross Beam Rods, Custom 8:1 compression pistons, Wrist Pins, and rings. The block was also drilled for 1/2" Headstuds instead of my 1/4" studs.

The top of the engine is a JBP Stage 2+1 Race Ported Head. It has JBP Stage 2 cams in it also and is ceramic coated to reduce heat. It is able to rev to 8500 rpms SAFELY!

Ok anyway, to the fun stuff. At first Bill Hahn and me were in the works of a turbo kit using the Super 20G as the turbo for the kit. Well after some research and the craving for more power we decided to use a Garrett GT35R turbo. It took awhile but I know that Bill is one for perfection and I knew this would be worth the wait! We took out the intake manifold and had Hahn Racecrafts Street Race Intake Manifold put on as well as his "Portfueler". Thats just the basics but I think everyone wants to see the pictures already so I know when Bill find this thread he will comment about everything I missed!

ENJOY!!!






















Last edited by 06noscobaltss; 04-03-2008 at 07:41 PM.
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Old 12-20-2007, 01:52 AM
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i can't wait to see the pics

ok so i noticed your running the map and scip sensors both on the intake manifold, how did that affect tuning, because this is a major point of contention for me.

Last edited by jimbos'ss; 12-20-2007 at 01:52 AM. Reason: Automerged Doublepost
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Old 12-20-2007, 01:54 AM
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Old 12-20-2007, 01:55 AM
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woooo. cant wait to see some numbers
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Old 12-20-2007, 01:57 AM
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^^^^^ x2!!
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Old 12-20-2007, 01:59 AM
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So when can I touch it?
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Old 12-20-2007, 01:59 AM
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Wow.... looks like amazing work. Needs to be cleaned tho asap!
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Old 12-20-2007, 02:04 AM
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so wait... no twin charging? i know somebody did it. i heard some donna chick but never heard other wise
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Old 12-20-2007, 02:05 AM
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subscribed for sure
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Old 12-20-2007, 02:10 AM
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Originally Posted by Alpine_Canada View Post
Wow.... looks like amazing work. Needs to be cleaned tho asap!
These were pics that I could take asap. I wanted to give everyone on the forum something to look at! As you can see its still not 100% complete yet! I should be driving it hopefully Fri or Monday at the latest, so look for some more pics then and yes she will be all clean and sparkling!
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Old 12-20-2007, 02:13 AM
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how much vacuum are you getting at idle?
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Old 12-20-2007, 02:14 AM
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and now we are talking, wow that is going to be a monster all the way

traction? what
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Old 12-20-2007, 02:15 AM
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very nice setup............should be a real beast..............love the way u have the hot side charge pipe ran..............never thought it would fit there but it looks way better that way..........
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Old 12-20-2007, 02:17 AM
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is there any estimates on the cost of the kit? and how much has it cost u to build your motor to how it is (pm me if you dont want to reveal)
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Old 12-20-2007, 02:20 AM
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wow man that is sick. some a couple questions, what are some expected numbers?? and when and if this kit comes in production, how much would it cost??
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Old 12-20-2007, 02:26 AM
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put a bigger FMIC on that thing quick!!!
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Old 12-20-2007, 02:33 AM
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Originally Posted by stage2 View Post
and now we are talking, wow that is going to be a monster all the way

traction? what
Traction will be an issue... But Im going to run drag radials daily driven and do slicks for the track.


Originally Posted by tREBs View Post
is there any estimates on the cost of the kit? and how much has it cost u to build your motor to how it is (pm me if you dont want to reveal)
I will let Bill answer that ? when he gets on here. As far as the motor build... Over 10k + the turbo kit.

Originally Posted by kwest View Post
wow man that is sick. some a couple questions, what are some expected numbers?? and when and if this kit comes in production, how much would it cost??
On my car we expect to hit well over 400WHP on pump gas because of my really low compression (8:1). We expect to hit over 500 on high octane and more boost.

Originally Posted by Mnatvyc1223 View Post
put a bigger FMIC on that thing quick!!!
That FMIC is more than I need. Its big and not to mention 5" thick... I bet that Intercooler could handle up to 800whp!
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Old 12-20-2007, 02:35 AM
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how much would one of those run someone?

didnt notice the thickness!
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Old 12-20-2007, 02:41 AM
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Originally Posted by Mnatvyc1223 View Post
how much would one of those run someone?

didnt notice the thickness!
Contact Hahn Racecraft. They are online also at http://www.hahnracecraft.com/
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Old 12-20-2007, 02:47 AM
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Hi All! Bill Hahn Jr. here. Joe's got one helluva car going together here, as you can see
Originally Posted by jimbos'ss View Post
i can't wait to see the pics

ok so i noticed your running the map and scip sensors both on the intake manifold, how did that affect tuning, because this is a major point of contention for me.
We are not 100% firm that this will be the final sensor config yet. We'll know more as we put the car through its paces.

Originally Posted by tREBs View Post
is there any estimates on the cost of the kit? and how much has it cost u to build your motor to how it is (pm me if you dont want to reveal)
This version of the turbosystem with the GT35R turbocharger will not be inexpensive, but we are also developing a less radical system with a Super 20G turbo. The S20G setup is aimed at stock or modified engines, and will be capable of up to 475 HP, whereas this GT35R is capable of 600HP.

Both systems will use the StreetRace Sheetmetal Intake seen here to completely replace the supercharger/intake/intercooler assembly.

Once we've got both systems complete, we'll be able to determine pricing.

Last edited by Hahn RaceCraft; 12-20-2007 at 02:55 AM. Reason: Automerged Doublepost
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Old 12-20-2007, 02:49 AM
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nice setup, I like it.
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Old 12-20-2007, 02:54 AM
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Originally Posted by Mnatvyc1223 View Post
how much would one of those run someone?

didnt notice the thickness!
If you are referring to the intercooler as available seperately, yes...we plan to offer the intercooler seperately, as well as the intake manifold. We'll also do a Tuner version of the turbosystem in both GT35R and S20G formats which will not include any engine mangement solution. These Tuner versions will be for those who wish to supply their own tuning options.

The Tuner GT35R and S20G turbosystems will also fit 2.2 and 2.4 Cobalt/G5, but in a 'user completion' format that will be for the more advanced enthusiast or shop. Of course, we will continue to offer our already-available GT2860R systems for 2.2 and 2.4, targeted at those desiring a complete, bolt-on solution with engine mangement included.

Originally Posted by jimbos'ss View Post
how much vacuum are you getting at idle?
We'll know soon...the engine is yet to be fired. I anticipate in the neighborhood of 14 in hg.

Last edited by Hahn RaceCraft; 12-20-2007 at 02:59 AM. Reason: Automerged Doublepost
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Old 12-20-2007, 03:12 AM
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lol HOW MUCH I WANT NOW!!! lol
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Old 12-20-2007, 03:19 AM
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Originally Posted by spike View Post
very nice setup............should be a real beast..............love the way u have the hot side charge pipe ran..............never thought it would fit there but it looks way better that way..........
Thanks! And that's 2.5" piping from the turbo to the intercooler, with 3" piping from the intercooler to the throttle body. This turbosystem is intended to be a heavy breather!
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Old 12-20-2007, 03:57 AM
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isnt there a better place to mount the external wga,also no bov?or am i missing it

also doesnt the wga go on the cold side(pipe that leads from intercooler-manifold)or can u mount an external anywhere

and from this moment on i have stopped moddin the balt till that kit comes out..its on my list to buy next year..

Last edited by Super_SS; 12-20-2007 at 03:57 AM. Reason: Automerged Doublepost
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