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thewarmachine · 01-08-2009, 10:42 AM

I upgraded from 3.31 to 4.10 last year.

The added acceleration is nice.

As always, don't judge their performance based on the first 5 minutes of driving after a cold start. Our cars drive crappy then because of the computer loopiness.

I can't really comment accurately on the loss in mpg since I have a short commute to work, but I feel as if I've lost about 3 or 4 mpg with the 4.10's. However,....I am getting on it more now that I have the 4.10's, so that's not mpg-friendly.

If I had it to do over again, I'd probably go with 3.73 just because of the highway rpms. I run about 2500 rpm at 70 mph in 5th gear with stock tire height. With 3.31's, it was 1950 rpm.

01-08-2009, 10:42 AM	#18
thewarmachine 5th Gear Member Join Date: Apr 2007 Location: North Carolina Posts: 2,886	I upgraded from 3.31 to 4.10 last year. The added acceleration is nice. As always, don't judge their performance based on the first 5 minutes of driving after a cold start. Our cars drive crappy then because of the computer loopiness. I can't really comment accurately on the loss in mpg since I have a short commute to work, but I feel as if I've lost about 3 or 4 mpg with the 4.10's. However,....I am getting on it more now that I have the 4.10's, so that's not mpg-friendly. If I had it to do over again, I'd probably go with 3.73 just because of the highway rpms. I run about 2500 rpm at 70 mph in 5th gear with stock tire height. With 3.31's, it was 1950 rpm. __________________ 2007 Black GT \| B&M Shifter \| FRPP 4.10 \| Stock mufflers \| Bassani Catted X \| BBK Shorties \| C&L Racer CAI \| Brenspeed 93 \| Roush Suspension \| BMR Adj PHR \| Legend Splitter \| Seq Tail Lights \| 5/8" Wheel Spacers