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11-10-2010, 06:50 PM
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#4 |
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Simple? What's simple?
 
Join Date: Apr 2007
Location: Southeast CT
Posts: 1,472
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Re: sm465+rear gear ratio=what rpms???
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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CURRENT '50 GMC 100 shortbed Gen IV 4.8 LS - 4L65E (Secret truck, Shhh!!!) Build '63 Buick Wildcat Coupe 401ci Nailhead (Very much in pieces) Photos '66 Impala SS convertible 327-QJet-glide (4 speed swap one of these days...) Photos '69 CST/10 4x4 SWB Stepper 350 2bbl - NV4500/NP241C (Broken Truck!) '72 Sierra Grande 2WD LWB fleetside 350-TH350 Refresh '99 K2500 Silverado RCLB 5.7 Vortec - NV4500/NP241C (Daily) '99 K2500 Suburban 7.4 Vortec - NV4500/NP246 (still working out the bugs) SOLD '71 Custom/10 2WD LWB fleetside - '72 GMC K/3500 Dually (Sold to redryder) Last edited by JJorgensen52; 11-11-2010 at 12:21 AM. |
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