Gears
09-25-18, 05:49 PM
#1
Driver School Candidate
Thread Starter
Gears
Does anyone make replacement rear gears or ever changed them? I was thinking this would be a good mod but all of my experience is with mustangs and camaros. I have not found any replacements or seen anybody post about changing them. Thanks for any info you can provide.
09-25-18, 06:32 PM
#2
Lexus Test Driver
On ISFs they swap the IS350 differential into their ISFs (numerically higher/shorter), but heard mixed opinions on it. It increases low gear acceleration at the cost of high speed acceleration and reduces top speed.
RCF essentially revs much higher, but has the same identical ratios designed for the ISF so for RCF, it is more optimized for higher speed race track or roads like Nurburgring or Autobahn etc.
RCF essentially revs much higher, but has the same identical ratios designed for the ISF so for RCF, it is more optimized for higher speed race track or roads like Nurburgring or Autobahn etc.
Last edited by 05RollaXRS; 09-25-18 at 07:36 PM.
09-25-18, 07:35 PM
#4
Lexus Test Driver
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ba2sy (10-07-18)
10-07-18, 03:58 PM
#11
agreed, it feels slower off the line and in some gears (3rd I think) because they are so long. Shorter would torpedo the mpg though which may be one reason Lexus avoided it. Not that many here will care about mpg. THey had to make a v8 car that could live in a CAFE world.
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