[04Roush]

what rpms you guys running at 70 mph in 5th with what gears? I'm trying to decide what ratio to go with. I drive a lot of hwy to I dont want too many rpms.
Thanks.

 

[04Roush]

nevermind I found a calculator.

 

[echo3romeo46]

mind hooking it up with a link to that calculator man?

 

[takiller]

at 70 mph i think ur around the 2100-2300 range, depending on 3.73 or 4.10's.

 

[takiller]

yea man where did you find that calculator. if you dont mind, hook it up with the link.

 

[GTsetGO]

i used to do a lot of hw traveling to my old job and I have 410's and was still getting 25 mpg

 

[cliffyk]

yea man where did you find that calculator. if you dont mind, hook it up with the link.

Here's mine...

 

[cet2kill]

Heres one Potential Engine Speed (RPM) Calculator

 

[04Roush]

Here's mine...

thats the one I found too in another post.

 

[whtpny]

this is a really good write up on gears, check it out http://www.moddedmustangs.com/forum...vs-4-10-took-couple-hrs-2-complete-enjoy.html