TRE - Taller 5th Gear

[ExTREME]

Wondering if anyone has any experience with the TRE taller 5th gear. Readin' a little about the TRE Exchange and a taller 5th gear is an option. Does anyone have any suggestions? I am mainly wondering on gas mpg and driving down the highway without going 3000rpm at 55-60mph.

-SA

[Goat Blower]

Yeah, it'd help with that. It'll be kinda doggy at lower rpm though. Cars with lots of torque usually have really tall overdrives like the Viper and Corvette. The Viper is at 1200 rpm at 60 mph in 6th gear.

[xveganxcowboyx]

I believe 95talonracer was having one put in (hope I remember that right). You might ask him if he's running it yet.

[sleepydsm]

well, for whatever reason talonracer95 was banned, and hasnt been allowed back on even since his ban was up. He did get that TRE 5th installed, and has the TRE tranny on the car.

[Thor06]

Wouldnt a taller 5th gear be bad for drag?

[Shane@DBPerformance]

You really don't ever go into 5th gear when drag racing a DSM. Even the very fast guys don't have to with the help of high revlimiters and larger diameter tires. The stock 5th gear is perfect for acceleration though, if you are do have to go into it on high mph highway pulls. Some cars when you go into 5th, it more of a cruising/gas mileage gear and the car falls out of the spooled up turbo powerband. A long 5th gear would probably be useful for a Bonneville salt flat car and for better gas mileage/less noise on the highway.

[x-pride]

Would a taller gear affect the gearing in our rear pumpkin on a AWD?

[ExTREME]

Alright, thanks guys. I wont be going with a taller 5th. Just wondering because I was wondering if it was any better on the car (highway speeds/mpg).

[1ViciousGSX]

Would a taller gear affect the gearing in our rear pumpkin on a AWD?
No. This only changes 5th gear, not the front diff/rear diff ratios.

[xveganxcowboyx]

I might do it at some point. The engine is just spinning too fast at 80+mph. It's wasteful when the engine is torquey enough to do it at slower revs.