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Forum: General Fuel Topics

06-01-2007, 06:40 PM

Replies: 13

How much overdrive is too much?

Views: 3,059

Posted By retrorocket

Back in the day

Back in the 70's some hot rod mag featured a 71 Monte Carlo that a guy built.

It had a 307 small chevy built for mileage. I remember that the car could get 30mpg or a little more.

I don't...

Forum: General Fuel Topics

06-01-2007, 05:28 PM

Replies: 13

How much overdrive is too much?

Views: 3,059

Posted By retrorocket

1075 rpm that is about right for a truck, maybe?

It comes out to 1075 rpm with a 30 inch tire.

I will try that and see how it works.

Here is a handy link for tire and gearing stuff.

https://www.csgnetwork.com/multirpmcalc.html

I does...

Forum: General Fuel Topics

05-31-2007, 06:58 PM

Replies: 13

How much overdrive is too much?

Views: 3,059

Posted By retrorocket

How much overdrive is too much?

My 66 Ford truck is getting a new 2.50 rear gear and an overdrive trans with a .74 overdrive.That yields an 1.85 finial drive ratio.

It will have around a 30 inch tall tire so it should be running...

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