RPMs at 55 - 60
04-01-2005, 12:30 PM
#2
3rd Gear Member
Join Date: Feb 2005
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Posts: 542
RE: RPMs at 55 - 60
You can figure it out. Take your stock gear (3.27's?) and take your tach reading at whatever mph you like and then divide the mph by the original gear and multiply it by the one you will be putting in and you will get the mph with the new gear.
04-01-2005, 01:38 PM
#3
Retired MF Moderator
Join Date: Apr 2004
Location: I live in Canada, eh
Posts: 7,156
RE: RPMs at 55 - 60
ORIGINAL: Djs94stang
You can figure it out. Take your stock gear (3.27's?) and take your tach reading at whatever mph you like and then divide the mph by the original gear and multiply it by the one you will be putting in and you will get the mph with the new gear.
You can figure it out. Take your stock gear (3.27's?) and take your tach reading at whatever mph you like and then divide the mph by the original gear and multiply it by the one you will be putting in and you will get the mph with the new gear.
Here's an easy way.....just add 600 RPM for 4.10s and 400 RPM for 3.73s. That should get you close, assuming you have a 99+ with a stick.
I have 4.10s but I don't know, off the top of my head, exactly what my RPMs are at certain speeds. 55-60 is somewhere around 2,200 RPM in 5th. Mine is an '03 GT with a 5 spd.
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