5AT gear ratio options?
Originally Posted by DaveB
I just did a search and sure enough, there at least three accounts of 03/04 sedans and one coupe having CC issues after installing the 3.5 gears. The CC will work to about 72mph and if you try to accelerate with it on and go over 72mph, it will turn off and won't come back on until you restart the car.
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Joined: Dec 2003
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From: Marietta, Georgia
The fuel consumption will increase at roughly the rpm increase rate since at cruise the A/F is fixed so more revs per minute more fuel used per minute.
Obviously idle consumption won't change so it is never 100% purely linear but close.
I would expect a 4.083 to be ~~18-23% worse than stock on AT.
We've had a few 4.083 sub for 3.538 on early Q and the 15.8% tracks perfectly as to highway mpg within a few %.
Obviously idle consumption won't change so it is never 100% purely linear but close.
I would expect a 4.083 to be ~~18-23% worse than stock on AT.
We've had a few 4.083 sub for 3.538 on early Q and the 15.8% tracks perfectly as to highway mpg within a few %.
I have 3.692 (3.7) FD - yesterday I re-tested the CC... works as normal at any speed... I even set it at 50mph then accelerated with it to 90mph and it stayed... I'm not sure why the people DaveB mentioned had problems, but mine works exactly as it did with OEM 3.3 FD.
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Joined: Dec 2003
Posts: 2,514
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From: Marietta, Georgia
The question is how will the 15%-20% increase in highway fuel consumption say $450-$800 per year relate vs the few tenths gain in acceleration.
Will you be able to honestly sell [disclose your mods] the used car with dif gear or be forced to return to stock ratio [cost to change].
In theory you are commiting emission fraud because the engine produces more emissions per mile due to burning more gasoline per mile......whether a court would see it that way is up to the judge?
Will you be able to honestly sell [disclose your mods] the used car with dif gear or be forced to return to stock ratio [cost to change].
In theory you are commiting emission fraud because the engine produces more emissions per mile due to burning more gasoline per mile......whether a court would see it that way is up to the judge?
Last edited by Q45tech; Mar 10, 2008 at 11:59 AM.
Originally Posted by Q45tech
The question is how will the 15%-20% increase in highway fuel consumption say $450-$800 per year relate vs the few tenths gain in acceleration.
Will you be able to honestly sell [disclose your mods] the used car with dif gear or be forced to return to stock ratio [cost to change].
In theory you are commiting emission fraud because the engine produces more emissions per mile due to burning more gasoline per mile......whether a court would see it that way is up to the judge?
Will you be able to honestly sell [disclose your mods] the used car with dif gear or be forced to return to stock ratio [cost to change].
In theory you are commiting emission fraud because the engine produces more emissions per mile due to burning more gasoline per mile......whether a court would see it that way is up to the judge?
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