Thread: Restoring Rusty
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Old 02-26-2016, 02:23 PM   #2710
68Timber
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Join Date: Nov 2007
Location: MONTGOMERY, AL
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Re: Restoring Rusty MPH and RPM

Quote:
Originally Posted by Gregski View Post
Even more better, O'Reillys replaced my 1 year old battery with a brand new one, so I was able to start and test drive the truck today. The new speedo works, and the new tach works as well.

Here are some numbers for you all.

Idles @ 900 RPM (kinda high but that's by the book, will need adjustment) old Tach idled at @ 1200

with 235/75 R15 tires I get this:

35 MPH @ 1500 RPM

50 MPH @ 2000 RPM

60 MPH @ 2500 RPM


then I ran out of runway, lol
That's odd. Do you know your gear ratio? Plugging those numbers HERE says you have 3.58 gears, pretty much between 3.40 and 3.73.
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79 2wd Blazer (Bruiser)
85 M1009 Blazer (Sarge) build
74 Honda Z50 build
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