Gs400 engine
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Driver School Candidate
Joined: Jun 2002
Posts: 31
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From: USA
Gs400 engine
hey guys,
I was just wondering, what make the Gs400 engine make 300 horsepower, but the other 1UZ-FE's (98+) make only 290 horsepower ? Is it the intake,exhaust,etc. thanks.
I was just wondering, what make the Gs400 engine make 300 horsepower, but the other 1UZ-FE's (98+) make only 290 horsepower ? Is it the intake,exhaust,etc. thanks.
Lexus Champion
Joined: May 2002
Posts: 2,781
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From: Georgia
Exhaust and some ECM programming. The same goes to the GS430 with bigger bore, but still has 300 hp and 15 more tourques than the GS400. I'm sure Lexus can tune those cars to be faster, but the emission level will be much higher.
To make the GS430 certified as an Ultra Low Emission Level(ULEV), they'd try really hard by take away the E-Shift and reprogrammed the ECM to meet the ULEV. Lexus is environmental friendly company and they rather make the car slower, but cleaner.
To make the GS430 certified as an Ultra Low Emission Level(ULEV), they'd try really hard by take away the E-Shift and reprogrammed the ECM to meet the ULEV. Lexus is environmental friendly company and they rather make the car slower, but cleaner.
Thread Starter
Driver School Candidate
Joined: Jun 2002
Posts: 31
Likes: 0
From: USA
Ok
That cleared a lot of things up for me, thanks
one more thing, you may think I'm dumb for asking this but can the gs400 ecu be transplanted into a 98 sc400?
btw, love your car!
one more thing, you may think I'm dumb for asking this but can the gs400 ecu be transplanted into a 98 sc400?
btw, love your car!
Last edited by lexboy; May 8, 2003 at 05:09 PM.
can the gs400 ecu be transplanted into a 98 sc400?
98-2000 SC400s and GS400s are using the same engine. I believe the difference in HPs is the exhaust system that is chocked more on SC.
Last edited by ChrisK; May 9, 2003 at 08:06 AM.
Lexus Champion
Joined: Feb 2001
Posts: 3,124
Likes: 32
From: Texas
Originally posted by ChrisK
It is already done for you.
98-2000 SC400s and GS400s are using the same engine. I believe the difference in HPs is the exhaust system that is chocked more on SC.
It is already done for you.
98-2000 SC400s and GS400s are using the same engine. I believe the difference in HPs is the exhaust system that is chocked more on SC.
As far as power goes, the 430 engined cars make their power at a lower peak RPM. They have MORE torque EVERYWHERE in the power band up to peak power and then are nearly identical to the 400 engined cars. This make them FASTER than the 400s up to peak power.
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