JJorgensen posted a spreadsheet that works pretty cool.
According to the sheet, I'm going to drop about 200-300 rpm at 55.
I've attached it here also.
Quote:
Originally Posted by JJorgensen52
I had a 3.73 behind my SM465/307 and got between 10 and 13 mpg, best cruising in town around 35mph.
If you shoot me your email address I can send you an excel spreadsheet that will give you all the information you're looking for - I have it on my laptop from when I was considering the NV4500 swap.
**EDIT** I figured out how to attach it directly. The spreadsheet is set up with two sheets, for NV4500 and SM465, as I was comparing the two. You can change tire height and rear end ratios (highlighted in yellow) to see what the speeds look like for different ratios and tire heights. Gives you MPH in each gear in 100RPM increments.
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