Can you Estimate my horsepower?

[prostockstan]

Around 3400

 

[1967coronet440]

You might get there, mines probaly going to be 3600-3700

 

[prostockstan]

Even though the ratio is 3.91 with this beast, do you think it will still work? Or do you think a different ratio is absolutely necessary.

 

[1967coronet440]

What tire are you running, specifically how tall is the tire

 

[prostockstan]

I think they are 26.5

 

[1967coronet440]

I ran a 3.91 with a 26” tire and it revved like crazy at 60mph, I think you might want to go to a taller tire.

 

[prostockstan]

That was my thought also I'll have to crunch the numbers and see what will work best for ET. And peo street use I'm on the fence.

 

[1967coronet440]

Run it see how it works and if you have to get a taller tire, don’t go lower gear

 

[prostockstan]

I thought with such a street ratio as 3.91 the smaller tire would work as if I had a 4.56 ratio. Taller gear means smaller tire. Lower gear such as 4.88 would want a much taller tire don't you agree?

 

[prostockstan]

Thanks for your replies. I'm sure we will talk again.

Stan

 

[1967coronet440]

Sorry you’re correct, I meant lower as in switching to a 3.55 or 3.23

 

[fishmens67]

Even though the ratio is 3.91 with this beast, do you think it will still work? Or do you think a different ratio is absolutely necessary.

do you like shredding tires ? if so, keep the 3.91 gear and 26.5 diameter tire. Then, horsepower #'s won't matter.
you need at least a 28" tire or a higher gear. Period

 

[prostockstan]

We were pleasantly surprised to find out that the Mickey Thompson street slicks are actually 28.00" on the dot. So I think we are in the ball park. I guess we will find out at the track.