question about top speed

[2 beer]

my car seems to max out at about 3500 in 5th gear. I dont know how fast I am going becuase I dont have a speedo in the car. Just wondering if anyone has any ideas

[Grenade]

my car seems to max out at about 3500 in 5th gear. I dont know how fast I am going becuase I dont have a speedo in the car. Just wondering if anyone has any ideas

Is that a real question?
What's your rear end gear ratio? tire size?
what kind of car?transmission?
What motor?hp?
od size? .62/.67/.68 etc...
More info is needed to actually answer your vauge question.

[2 beer]

4.10's
245/50/14
5 speed
5.0 pretty stock just bolt ons
I dont know about the OD ratio

I was just wondering if anyone else has had this problem

[jjhirsch]

probly around 130

[StangerJon]

foxes arent the most aero dynamic things in the world. I would be happy with about a 140 top speed out of mine.

[2 beer]

you think so? there's no way I was doin 130 anyone got a way to figure this out, what my top speed is bein that i dont have speedo and she kinda gives up at 3500 in 5th?

[Emart]

http://tchracing.com/tech/gearcalc.php?tirenum1=245&tirenum2=45&tirenum3=17&diameter=&finalgear=4.10&transmission=wide4r70w&operation=speed&givenval=2500&givenvaltype=RPM&selectedgear=1

[Emart]

try playing around with that, should work well for you.

[2 beer]

thanks dude thats a badass find

[MadMatt]

Ive had my stock fox up to about 120 or so with 273s. It didnt seem like it had much more left in it! It majorly limited as far as aerodynamcs go!

Ive had a couple of "fast" Berettas. Those suckers could easily fly along at with thier limited HP. Too bad the computer cuts it off at 110. Im sure my 93 GT couldve done 150

[MadMatt]

http://tchracing.com/tech/gearcalc.p...selectedgear=1

Drag Coefficient? Weight? HP? So many things make that totally false

[jjhirsch]

i top at 130 but i have aode and no gears

[KrisR]

Drag Coefficient? Weight? HP? So many things make that totally false

The three things you listed will not affect the calculated rpm/mph ratio when in gear. Things that will make it wrong are clutch or torque converter slip and tire growth (mainly with slicks).

[Hack]

I used to have an '89 GT that I had up to 135 and it seemed to have some left, but I was short on road. It got to 135 pretty fast. AFAIK it was stock.

I did this in North Dakota where it's a little more wide open. Here in Minnesota they get militant if you go that fast. Not sure I would try that again on a public road. I guess I'm getting old.

[NAZISALEEN]

Isn't there some limiter in the computer on the 5.0 foxes??? I thought I heard that? Or is it they just don't make enough power to push the car up to 5500 in overdrive???