Here is an online version of the Gear and Speed Calculator. I have it
configured for a few of the top loader gear ratios and all web based in case
you don't have a spreadsheet.
http://www.gtsparkplugs.com/GearCalc.html
HTH
Sandy
________________________________
From: Andy Walker
<awtiger@cox.net>
To: 'Tiger's Den' <tigers@autox.team.net>
Sent: Tuesday,
August 6, 2013 8:44 PM
Subject: [Tigers] Gears and rpms
Hey, guys:
I've
got a question for some of the more mathematically proficient in the
group.
I'm considering making some changes to my Tiger pertaining to the
rear end
gear ratio. Can anyone tell me how to figure what kind of rpm
difference
there would be at, say 70 mph, between a Tiger equipped with a
stock 2.88:1
rear end and one equipped with first a 3:07.1 and then a 3:31.1
rear gear?
Surely there's a formula out there that can figure that. Can
anyone point me
in the right direction?
The bottom line here is that I need something
that will get my car off the
line a bit quicker without completely destroying
my highway cruising
capabilities. I currently am running an Edelbrock F4B and
a Holley 465 cfm
carb, a hydraulic version of the old Ford hi-po cam, and 13"
LAT 70s with
185/70 tires. The car currently has a 2:88.1 rear gear and that
makes it a
bit sluggish off the line. I've heard it said that a 3.07:1 gear
was about
ideal for a stock Tiger, but with the cam and carburation my car
has, would
a 3.31:1 be a better alternative?
Thanks for any advice,
Andy
Walker
Edmond, OK
B382001600LRXFE
TAC #740
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