MPG diff b/t 3.08 3.55 and 3.70
01-28-2002, 07:27 PM
#1
Racer
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MPG diff b/t 3.08 3.55 and 3.70
What would be the difference in gas mileage b/t those different gear ratios. I have 3.08 now and was looking to put in something new, but I dont want the gas cost to be too bad.
01-28-2002, 08:10 PM
#2
Le Mans Master
Re: MPG diff b/t 3.08 3.55 and 3.70 (C3Vettesrock)
i did the same swap had 3.08 put 3.70 in with about the same converter too and i stayed the same if not i got better cause the 3.08 were ******* the motor down the 3.70 helped it move alot easier not pushing the gas down as much.just my oppinion..but when im on the highway forget about it i can watch the gas guage drop..its not a pretty site,but id never change back.
01-28-2002, 08:48 PM
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Re: MPG diff b/t 3.08 3.55 and 3.70 (pats406nitrovette)
i thought about going to 3.70 gears myself.. i wasnt happy with the way 3.08s were cutting it.. but then i got the car back and put some good plugs in it and gave it a good clean grunt.. and she drives great.. has real good gas mileage and has a lot of go.. only problem is the valves are too small and its not making the power it should.. but I reccomend 3.55 gears..
01-28-2002, 10:05 PM
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St. Jude Donor '03-'10
Re: MPG diff b/t 3.08 3.55 and 3.70 (Corzvette69)
i thought about going to 3.70 gears myself.. i wasnt happy with the way 3.08s were cutting it.. but then i got the car back and put some good plugs in it and gave it a good clean grunt.. and she drives great.. has real good gas mileage and has a lot of go.. only problem is the valves are too small and its not making the power it should.. but I reccomend 3.55 gears..
