Turbo experience?
Thread Starter
10 Second Club
iTrader: (8)
Joined: Feb 2004
Posts: 2,846
Likes: 0
From: Milwaukee, WI
Turbo experience? I can't decide on what kit to purchase and wanted to know experienced opinions. I am looking for a kit to produce 900 on race and 700-750 on the street with pump. I looked at the speed inc kit which comes with the GT76R turbo but is that enough? I also looked at a T88 turbo. Not sure though since I never used one. Or should I go with a twin kit? Anyone with these numbers what turbos are you using. I want to hit in the 9's at the track too if that matters. I searched and searched but can't decide so I just want some opinions on first hand experiences with some kits and turbos.
Thanks
Thanks
SSU'S Vice Mod
Joined: Jul 2004
Posts: 2,391
Likes: 0
From: Hazard Co. Maryland
Originally Posted by HAMRHEAD
I can't decide on what kit to purchase and wanted to know experienced opinions. I am looking for a kit to produce 900 on race and 700-750 on the street with pump. I looked at the speed inc kit which comes with the GT76R turbo but is that enough? I also looked at a T88 turbo. Not sure though since I never used one. Or should I go with a twin kit? Anyone with these numbers what turbos are you using. I want to hit in the 9's at the track too if that matters. I searched and searched but can't decide so I just want some opinions on first hand experiences with some kits and turbos.
Thanks
Thanks
What size motor is this going on, that'll dictate turbo sizing. 6 spd or stalled auto, same thing. Keeping your accesories, or ditching them? Just some other things to think about.
Thread Starter
10 Second Club
iTrader: (8)
Joined: Feb 2004
Posts: 2,846
Likes: 0
From: Milwaukee, WI
Can't believe I forgot that part 
! It will be in an iron block 408 with all forged internals so no worries about the motor. It is a 4L60E now but will be going to a TH400. The stall will be anywhere from 3600 to 4000 I haven't decided. No worries about fuel either. The A/C is gone and there is a 90mm fast intake with a 90 NW throttle body. I also have N2O but don't know if I will keep it or not. There will be a FMIC as well if anyone was wondering.
! It will be in an iron block 408 with all forged internals so no worries about the motor. It is a 4L60E now but will be going to a TH400. The stall will be anywhere from 3600 to 4000 I haven't decided. No worries about fuel either. The A/C is gone and there is a 90mm fast intake with a 90 NW throttle body. I also have N2O but don't know if I will keep it or not. There will be a FMIC as well if anyone was wondering. SSU'S Vice Mod
Joined: Jul 2004
Posts: 2,391
Likes: 0
From: Hazard Co. Maryland
Originally Posted by HAMRHEAD
Can't believe I forgot that part ! It will be in an iron block 408 with all forged internals so no worries about the motor. It is a 4L60E now but will be going to a TH400. The stall will be anywhere from 3600 to 4000 I haven't decided. No worries about fuel either. The A/C is gone and there is a 90mm fast intake with a 90 NW throttle body. I also have N2O but don't know if I will keep it or not. There will be a FMIC as well if anyone was wondering.
! It will be in an iron block 408 with all forged internals so no worries about the motor. It is a 4L60E now but will be going to a TH400. The stall will be anywhere from 3600 to 4000 I haven't decided. No worries about fuel either. The A/C is gone and there is a 90mm fast intake with a 90 NW throttle body. I also have N2O but don't know if I will keep it or not. There will be a FMIC as well if anyone was wondering.From the sounds of that, the 76 sounds a tad small, and you might be looking more towards an 88 or a gt42~45. You going to be running in any series where you're turbo restricted? One name, Jose.
Twins are definatly cooler BUT they can get alot more expensive and the wieght does start to add up. A big single is definatly a good choice. A GT76R will definatly push enough air to make your desired HP and you will have NO issue getting into the 9's so long as the res of the car is setup. 700 horse alone will put you well inton the 9's/ **** with 900 you ave a chance of getting 8's. GL man
John
John
Teching In
Joined: Mar 2005
Posts: 11
Likes: 0
From: Plainfield
Alothough ive never ran any of these kits, judging by the motor a t88 would be the best setup. The t76 obviously will not flow the amount of cfm the 88 will, but with a 408 your lag time will not be a problem. And judging by your goals you are gonna be boostin a decent amount of psi. The t88 will be much more efficent at higher boost.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo
Thread Starter
10 Second Club
iTrader: (8)
Joined: Feb 2004
Posts: 2,846
Likes: 0
From: Milwaukee, WI
Just when I think I got a hold of things you guys go and confirm to me I don't know ****! I do know I want a ball bearing turbo and probably a single. I see a lot of the turbos you guys are talking about for sale but don't know exactly what to look for in the info on the turbo. Is there any LS1 kits that can use the pt88 or will it be a fab job?
My customer is running a 355 LT1 and I'm running the 383. That is on the LT1 though with the Gen 1 kit. We have not tried to fit a PTE-88 on an LS1 kit or a Gen 2 LT1 kit. But I can say this, the PTE88 at 24psi and the 76GTS at 24psi, were almost identical. The 76 made 20 less rwhp peak, but made 20 more rwtq and spooled 500 rpms quicker.
Jose
Jose
id second that a 408 motor would need a T88 or bigger.
one guy on ls1dotcom modified his tti race and put a PT88 on it, think he had to use a different waterpump. also the ptk kit might fit one on.
if you were to use a thumper flange youll have to have it custom fabbed.
if the T76gts came with a 1.06 AR it might work though
one guy on ls1dotcom modified his tti race and put a PT88 on it, think he had to use a different waterpump. also the ptk kit might fit one on.
if you were to use a thumper flange youll have to have it custom fabbed.
if the T76gts came with a 1.06 AR it might work though
SSU'S Vice Mod
Joined: Jul 2004
Posts: 2,391
Likes: 0
From: Hazard Co. Maryland
Originally Posted by JZ 97 SS 1500
My customer is running a 355 LT1 and I'm running the 383. That is on the LT1 though with the Gen 1 kit. We have not tried to fit a PTE-88 on an LS1 kit or a Gen 2 LT1 kit. But I can say this, the PTE88 at 24psi and the 76GTS at 24psi, were almost identical. The 76 made 20 less rwhp peak, but made 20 more rwtq and spooled 500 rpms quicker.
Jose
Jose
Whoops, my bad, got that mixed up.
Thread Starter
10 Second Club
iTrader: (8)
Joined: Feb 2004
Posts: 2,846
Likes: 0
From: Milwaukee, WI
Should I be looking at Precision, turbonetics, Garrett, Innovative, or what for the best brand? I went to the PTK site to search the turbos but not sure what is best for me as far as brand. PTE88, t88???
SSU'S Vice Mod
Joined: Jul 2004
Posts: 2,391
Likes: 0
From: Hazard Co. Maryland
Originally Posted by HAMRHEAD
Should I be looking at Precision, turbonetics, Garrett, Innovative, or what for the best brand? I went to the PTK site to search the turbos but not sure what is best for me as far as brand. PTE88, t88???
Do you have a target race weight? T 76 GTS is a PTE piece on a T4 flang. ITS (Innovative) has a 76 as well but I don't know which flows better on either side (I think from what I've read the ITS 76 is a bit better). What smokinhawk was getting at is that the cold side probably flows well enough but the turbine will restrict you on exhaust flow around the top end. Spool is of no concern with the stalled auto, so again we come back to goal questions. Obviously you said driving on the street with a target of 650~750 on pump, but you can probably nail this with a 76 on a 370 iron and then hit your 900 on race fuel or 100 or 93 with meth. At this point you could go with a TTi race and not worry about the issues of fitting an 88 to that. Are you dead glued to the 408? Are you planning on fabbing headers and a hot side? Is this a race car that will see minimum street? As far as the turbo manufactures listed above, it's a crap shoot as all are really quality.