Anyone have 3.90's in their dohc cobra?

[95 yellow 5 0]

tryin to find someone who could tell me the difference between 3.90 and a 4.10 dead stop racing or a highway roll.

 

[Uncle Meat]

tryin to find someone who could tell me the difference between 3.90 and a 4.10 dead stop racing or a highway roll.

Numerically they are very, very close of course! I doubt if you could really tell much difference between the two.

U.M.

 

[b1ackfang]

Stick with 4.10's.

 

[argumosa3]

I've got a 99 Cobra with 4.10s. Other guys are right, probably not much difference so might as well go with 4.10s. Only thing that I've noticed is how much more gas I go through due to the higher RPMs. At 60 mph I'm cruisin at about 2200. But if you honestly bought this car to get great gas mileage, you need to go ahead and sell.

 

[blackfang]

I get 24-26 mpg with 4.30's on the highway.

 

[missouri_guy197]

Skip the 4.10's and go with 4.30's...much much better overall gear for these cars on the strip and the street...

 

[cobrahissss]

I have 4:10's but with 27.1" OD 255/50R17 tires on the rear that actually makes it a 3.89. Did that on purpose as I really wanted the 3.89 but hard to find. I get 24 mpg at 70mph 2500 RPM. The taller rear tires with 1" spacers really give the car a nice rake with the 275/40R17 (25.7" OD) on the front. Plenty of pull in all gears.

 

[mtb01]

NA go with 430's maybe even 456's!