Hahn Racecraft LSJ GT35R Turbo Project PICS RELEASED!
Senior Member
Joined: 08-13-05
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From: the glove
Good job guys, gotta love the boost response of that T3 hotside....no noticeable "lag" per say in the HP curve.
i take it the lack of torque can be attributed to ever continuing tuning and a rather large shaft inertia?
great work!
Paul and I are on the hunt now!
i take it the lack of torque can be attributed to ever continuing tuning and a rather large shaft inertia?
great work!
Paul and I are on the hunt now!
Former Vendor
Joined: 07-07-06
Posts: 1,430
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From: Chicago, IL
Yes, the combination of low compression, large turbo, and ported head / big cams all conspire to steal away torque, but compensate for it with big HP via the much enhanced airflow at high RPM. What you see here is most characteristic of such a combo. What she gives up on the bottom, she gives back in spades at full RPM! And of course, the big payoff comes when we put the high octane in and give it some REAL boost!!!
This torque to HP relationship is even more evident in a combo such as our GT4088R 2.0 Ecotec Sunfire. As mentioned above, we will likely be able to make some improvements in torque, but at this level of the game, the emphasis shifts to hi RPM HP, and we'll never get this monster to make stump-pulling low end.
Last edited by Hahn RaceCraft; Apr 3, 2008 at 12:52 AM. Reason: Automerged Doublepost
New Member
Joined: 06-27-07
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From: Cabo Rojo,Puerto Rico,USA
Don't worry Bolus I'm sure yours will be done way before mine and yours will have lots more HP since my goal is 320-350WHP. I know you are shooting for the big numbers on yours 
Don't tell anyone but I'm also waiting to see how everything on this kit fit on your car before I take the plunge so good luck
Don't tell anyone but I'm also waiting to see how everything on this kit fit on your car before I take the plunge so good luck
Senior Member
Joined: 08-13-05
Posts: 5,733
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From: the glove
[QUOTE=EcoBoost;2155807]That came in at 20-23 PSI. With the big GT35R, the boost follows RPM to a degree, and is not linear in response like a smaller turbo. We will work on improving that with tuning and boost control.
ahhh yes, the lower compression and lower gas velocity....makes more sience now. forgot he had droped the CR.
i've been toying around with jumping down to a T3 .63 frame from my t4 unit for a while now, this sways me even more in that direction due to the sustained power curve...i f-in love my t4 mid-range and top end....but i do miss the more responsive lower end that the smaller frame would give.
cant wait to catch it out in chi-town...better yet i want to see this j-bod with a 4088R in it....i had 4208R on an old DSM and that was wacky, that car must be close to the same.
awesome progress guys, cant wait to see what she makes once the tune gets nailed down....it took me MONTHS of work before i could stop dicking with it every day, and even now i still play with it a few times a week.
Good job guys, gotta love the boost response of that T3 hotside....no noticeable "lag" per say in the HP curve.
i take it the lack of torque can be attributed to ever continuing tuning and a rather large shaft inertia?
great work!
QUOTE]
Thank you
Yes, the combination of low compression, large turbo, and ported head / big cams all conspire to steal away torque, but compensate for it with big HP via the much enhanced airflow at high RPM. What you see here is is most characteristic of such a combo. What she gives up on the bottom, she gives back in spades at full RPM! And of course, the big payoff comes when we put the high octane in and give it some real boost.
This torque to HP relationship is even more evident in a combo such as our GT4088R 2.0 Ecotec Sunfire. As mentioned above, we will likely be able to make some improvements in torque, but at this level of the game, the emphasis shifts to hi RPM HP, and we'll never get this monster to make stump-pulling low end.
i take it the lack of torque can be attributed to ever continuing tuning and a rather large shaft inertia?
great work!
QUOTE]
Thank you
Yes, the combination of low compression, large turbo, and ported head / big cams all conspire to steal away torque, but compensate for it with big HP via the much enhanced airflow at high RPM. What you see here is is most characteristic of such a combo. What she gives up on the bottom, she gives back in spades at full RPM! And of course, the big payoff comes when we put the high octane in and give it some real boost.
This torque to HP relationship is even more evident in a combo such as our GT4088R 2.0 Ecotec Sunfire. As mentioned above, we will likely be able to make some improvements in torque, but at this level of the game, the emphasis shifts to hi RPM HP, and we'll never get this monster to make stump-pulling low end.
i've been toying around with jumping down to a T3 .63 frame from my t4 unit for a while now, this sways me even more in that direction due to the sustained power curve...i f-in love my t4 mid-range and top end....but i do miss the more responsive lower end that the smaller frame would give.
cant wait to catch it out in chi-town...better yet i want to see this j-bod with a 4088R in it....i had 4208R on an old DSM and that was wacky, that car must be close to the same.
awesome progress guys, cant wait to see what she makes once the tune gets nailed down....it took me MONTHS of work before i could stop dicking with it every day, and even now i still play with it a few times a week.
Member
Joined: 02-28-07
Posts: 334
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From: Portland, OR
Don't worry Bolus I'm sure yours will be done way before mine and yours will have lots more HP since my goal is 320-350WHP. I know you are shooting for the big numbers on yours
Don't tell anyone but I'm also waiting to see how everything on this kit fit on your car before I take the plunge so good luck
Don't tell anyone but I'm also waiting to see how everything on this kit fit on your car before I take the plunge so good luck
Senior Member
Joined: 07-08-05
Posts: 6,200
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From: Niceville, FL
Bill, yes indeed Paul's feat on a stock engine is quite impressive and nothing to sneeze at by no means. He wins in the stock motor category hands down... well at least until 06Black tries to beat him out. Then it will be a race to see who will nudge each other out!
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Joined: 07-08-05
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From: Niceville, FL
Hey Bill, what are your thoughts on an EVO III 16g turbo on these cars and aiming for around 325-350whp? Just curious because I love my Integra with it's small 16g so much that I went ahead and upgraded it to an EVO III. I think it would provide quick spool and enough huff for that power goal in mind.
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From: Chicago, IL
Hey Bill, what are your thoughts on an EVO III 16g turbo on these cars and aiming for around 325-350whp? Just curious because I love my Integra with it's small 16g so much that I went ahead and upgraded it to an EVO III. I think it would provide quick spool and enough huff for that power goal in mind.
All that aside, tho...any 16G is breathing very hard at such power levels as you describe. However, our Super 20G is smack in the middle of her sweet spot there, and spools almost as quickly as the 16G, so its a natural.
Not to threadjack my own (well, and Joe's!) thread tho...I will soon be releasing more info about all of these components in new threads. If you want to be kept posted of events as they unfold, drop us a line at sales@turbosystem.com and ask to be added to to the Cobalt list. Thanks!
Soon! We are in the last phases of development now.
Last edited by Hahn RaceCraft; Apr 3, 2008 at 02:43 AM. Reason: Automerged Doublepost
Senior Member
Joined: 07-08-05
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From: Niceville, FL
Well, heh, of course I'd suggest a Hahn Super 16G for a much more effective install...we can even provide the manifold! The Evo turbo's got that whack Mitsu inlet and outlet flange, so there's also no interchangeability, whereas our Super 16G's use much more common flange designs that allow one to use a manifold with the ever-popular T3 flange. Leaves so many options for future growth.
All that aside, tho...any 16G is breathing very hard at such power levels as you describe. However, our Super 20G is smack in the middle of her sweet spot there, and spools almost as quickly as the 16G, so its a natural.
Not to threadjack my own (well, and Joe's!) thread tho...I will soon be releasing more info about all of these components in new threads. If you want to be kept posted of events as they unfold, drop us a line at sales@turbosystem.com and ask to be added to to the Cobalt list. Thanks!
Soon! We are in the last phases of development now.
All that aside, tho...any 16G is breathing very hard at such power levels as you describe. However, our Super 20G is smack in the middle of her sweet spot there, and spools almost as quickly as the 16G, so its a natural.
Not to threadjack my own (well, and Joe's!) thread tho...I will soon be releasing more info about all of these components in new threads. If you want to be kept posted of events as they unfold, drop us a line at sales@turbosystem.com and ask to be added to to the Cobalt list. Thanks!
Soon! We are in the last phases of development now.
I'll be keeping an eye out on your 20G kit to see what it does.
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From: Niceville, FL
Former Vendor
Joined: 07-07-06
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From: Chicago, IL
There's always some tradeoffs, no matter the technology used, so it pays to fully understand all the ins and outs before proceeding down a path such as this. You may choose low end torque, or high end horsepower, or some compromise that achieves the best compromise of both for your needs.
We specialize in helping prospective customers understand where their ideal combo ultimately exists in terms of preferences and budget. We maintain that a well-educated customer is our favorite, for they are much more likely to have a positive experience. Not to mention, the more you look, the better we look!
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Joined: 04-03-06
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From: Mesa, AZ
Ah, if only there were...thou seeketh the Holy Grail. A 6000-rpm wide powerband is indeed the stuff of legend!
There's always some tradeoffs, no matter the technology used, so it pays to fully understand all the ins and outs before proceeding down a path such as this. You may choose low end torque, or high end horsepower, or some compromise that achieves the best compromise of both for your needs.
We specialize in helping prospective customers understand where their ideal combo ultimately exists in terms of preferences and budget. We maintain that a well-educated customer is our favorite, for they are much more likely to have a positive experience. Not to mention, the more you look, the better we look!
There's always some tradeoffs, no matter the technology used, so it pays to fully understand all the ins and outs before proceeding down a path such as this. You may choose low end torque, or high end horsepower, or some compromise that achieves the best compromise of both for your needs.
We specialize in helping prospective customers understand where their ideal combo ultimately exists in terms of preferences and budget. We maintain that a well-educated customer is our favorite, for they are much more likely to have a positive experience. Not to mention, the more you look, the better we look!
Cause trust me, if there were a turbo out there like that, I wouldn't even be thinking about a blower.
Member
Joined: 02-28-07
Posts: 334
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From: Portland, OR
You can get a kit now, it is just not turn key. But if you dont mind doing some of the stuff yourself like the charge tubing and the tuning then you can get what I got. Intake and exhaust manifolds, turbo, boost controller, and other basics.
Former Vendor
Joined: 07-07-06
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From: Chicago, IL
guys!
and btw great numbers.... I can't wait to see you guys crank it up too 30psi... I estimate at least 520whp or so..
Last edited by 06blackg85ss; Apr 3, 2008 at 06:00 PM. Reason: Automerged Doublepost
Thread Starter
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Joined: 03-28-06
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From: Wheaton, Illinois
Well guys here are the videos. 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
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
Last edited by 06noscobaltss; Apr 3, 2008 at 06:41 PM.