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GS400/430 transmission strength

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Old 09-24-06, 08:41 PM
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twojayzee
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Default GS400/430 transmission strength

What is the typical breaking point in HP of the trans in the V8 Lex's
Curious what some of the FI guys are running for hp.
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Old 09-24-06, 08:44 PM
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morris
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It depends of course on how you drive and a host of other factors but from my experience, I would start worrying as you approach 400whp
Old 09-25-06, 08:10 AM
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I wonder what the sc430tt is running for a tranny.
Old 09-30-06, 02:11 PM
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beecuzwhy
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i am pushing 478hp to the wheels in my gs400 and the tranny is fine. But i do recommend you installing an lsd. Trust me you'll need it.
Old 09-30-06, 03:12 PM
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wow, 478 to the wheels....What set-up are u running???
Old 10-01-06, 12:40 AM
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Kharizma
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holy **** beecuzwhy - i wanna know too lol just saw your other thread and i say go for a rebuild.. will be better i think morris has a built 400 V8 motor?
Old 10-01-06, 10:11 AM
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morris
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Yup built motor and built tranny.
Old 10-02-06, 11:44 AM
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chuckb
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Originally Posted by beecuzwhy
i am pushing 478hp to the wheels in my gs400 and the tranny is fine. But i do recommend you installing an lsd. Trust me you'll need it.

where's the pics/details on car please?
Old 10-02-06, 12:23 PM
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morris
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Good question, I sure would like to know how he is doing this. Tell us about the setup please.
Old 10-02-06, 12:45 PM
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HI98GS
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He blew up his motor according to this thread,
I would also like to know what he is running because that is the most I have heard a stock V8 Block put out. Even it only 15% loss due to drive train, that would make the car nearly 550 to the crank.
Old 10-02-06, 04:26 PM
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beecuzwhy
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The motor has been rebuilt w/ forged internals but i guess they f*** up and it went out the other day and your rite 478 at the wheels. I had the basic ; headers from s&s, k&n intake, no cats, borla exhaust all the way back, torque converter from precision industries, lsd, and 225shot nitrious wet w/ 2 bottles so the pressure is adequate and had the ecu tuned for it, if i can recall the shop also did a switch for me so when i sqeeuze the feul pressure also increase. the motor was supposed to handle at least 600 but it didnt. if anyone is wondering i use to squeeze 150hp of nitirous all the time and back then no one there to squeeze that much. then the horsepower monster came out and lets say dont go over 150 to be safe. I also wanted the car in 11secs never happen but i was close it ran low 12's consistenly and killed alot of cars in central cal. Zo6's, evo's, supra tt, srt-4 w/ mopar stage 3, ss camaros, ws6 firebirds. ... ... . .etc i do have a list i kept and a few videos if u want to see them.
Originally Posted by HI98GS
He blew up his motor according to this thread,
I would also like to know what he is running because that is the most I have heard a stock V8 Block put out. Even it only 15% loss due to drive train, that would make the car nearly 550 to the crank.
Old 10-02-06, 04:32 PM
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Hey how did they adjust the ECU?
Old 10-02-06, 04:35 PM
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beecuzwhy
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remapped and redoned by my buddy ben if you need one done i can give you his number.
Originally Posted by morris
Hey how did they adjust the ECU?
Old 10-02-06, 05:11 PM
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.... ....
Old 10-02-06, 06:21 PM
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Originally Posted by beecuzwhy
The motor has been rebuilt w/ forged internals but i guess they f*** up and it went out the other day and your rite 478 at the wheels. I had the basic ; headers from s&s, k&n intake, no cats, borla exhaust all the way back, torque converter from precision industries, lsd, and 225shot nitrious wet w/ 2 bottles so the pressure is adequate and had the ecu tuned for it, if i can recall the shop also did a switch for me so when i sqeeuze the feul pressure also increase. the motor was supposed to handle at least 600 but it didnt. if anyone is wondering i use to squeeze 150hp of nitirous all the time and back then no one there to squeeze that much. then the horsepower monster came out and lets say dont go over 150 to be safe. I also wanted the car in 11secs never happen but i was close it ran low 12's consistenly and killed alot of cars in central cal. Zo6's, evo's, supra tt, srt-4 w/ mopar stage 3, ss camaros, ws6 firebirds. ... ... . .etc i do have a list i kept and a few videos if u want to see them.
Hell yeah we want to see pics and vids. Post em up


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