Drag strip ratio (4.10, 3.73?)

Touring23 · Dec 10, 2008

This is for a fully-laden street Cobra with 26.0" tires, 5-speed, and mild mods but no blower or nitrous. If I did the calculations correctly, trapping 100mph would result in either 4800 (3.73) or 5300RPM (4.10) in 4th gear.
3.73 is all ready installed and am curious about going to the 4.10?

Thanks. Searchy no findy. opcorn:

Stopsign32v · Dec 10, 2008

I will be running 4.30s

Touring23 · Dec 10, 2008

'Kay. Thanks for sharing that.

Stopsign32v · Dec 11, 2008

lol since this is bothering you so bad and you already have the 3.73s in why don't you take your car to the track the next time you get (depending on if the track is still open near you) run your car and then change the gears to 4.10s and run it again. TADA!!!!!!!!!!! There will be your answer!!!!!

However I would focus on other mods. Port your intake, get better heads, etc etc.

vladasap · Dec 11, 2008

4.10s are too steep imo.

i rev to 5400 and the car goes past that at a 1/4 so now im regretting the 4.10s

I'd say stay with the 3.73s, especially if you drive the car regularly like me

Joe 5.0 · Dec 11, 2008

I'd stick with the 373's for now, as you dont have the top end to take advantage of the 4.10's.

revhead347 · Dec 11, 2008

Touring23 said:
This is for a fully-laden street Cobra with 26.0" tires, 5-speed, and mild mods but no blower or nitrous. If I did the calculations correctly, trapping 100mph would result in either 4800 (3.73) or 5300RPM (4.10) in 4th gear.
3.73 is all ready installed and am curious about going to the 4.10?

Thanks. Searchy no findy. opcorn:

You're definately looking at it the right way. You should be gearing the car to top out in 4th gear at the end of the track. Honestly, I would go with the 4.10s. They aren't that bad on the street, and the car should go faster.

Kurt

Touring23 · Dec 11, 2008

Thanks guys. It's not a DD, I think I drove it maybe 2,000miles in the last two years, so fuel mileage isn't a big concern.

I found this thread along the same lines.

Hhhmmmm...................

Black95GTS · Dec 12, 2008

4.10s and don't think twice. For very short dollars you can retard your camshaft timing to move the power up a few hundred RPM as well.

Adam

Drag strip ratio (4.10, 3.73?)

Touring23

Stopsign32v

Member

Touring23

Stopsign32v

Member

vladasap

Member

Joe 5.0

revhead347

Apparently my ex-husband made that mistake.

Touring23

Black95GTS

Active Member

Similar threads

Drag strip ratio (4.10, 3.73?)

Member

Member

Member

Apparently my ex-husband made that mistake.

Active Member

Similar threads

Privacy & Transparency

Privacy & Transparency