[Tigers] Rear End Gears

Steve Laifman SLaifman at SoCal.rr.com
Fri Sep 12 15:20:03 MDT 2008


According to the TigersUnited.com *Gear Calculator 
<http://www.tigersunited.com/techtips/HokansonGearSpeedXL/pt-HokansonGearSpeedXL.asp>* 
, the mph/1000 rpm using *2.88* gears and 165R13 tires, is *24* mph/1000 
rpm.

A *3.07*, using same tires, is *23* mph/1000 rpm. 

At *5500* rpm the corresponding speeds are:

2.88     is      132 mph.

3.07      is     124 mph.

A Ford 5 speed with 0.8 fifth will increase speeds by 20% - providing 
you have the much greater HP required!

"You Pay Your Money, and You Get Your Choice"

Larger tires will increase the speed, at the cost of fender clearances 
front and rear.

See manufacturers data for tire diameter on other sizes.

___
Steve Laifman
Editor - TigersUnited.com



Thomas Witt wrote:
> Dave,
>   Bill makes a point about the change.  If you use a calculator you can find 
> a tire size (larger) that will equal equivalent  the difference between the 
> 3.07 and the 2.88 gears.  Perhaps you can borrow a set of large sized tires 
> for the rear and "try out" the change (Mustangs, T-Birds etc.).  Then if you 
> like the change the tires are a lot cheaper that the gears. With their own 
> wheels (on new larger tires) you can change "ratios" back and forth in about 
> ten minutes.
> Tom
>
>
>
>   
>> You might want to use the calculator at this link:
>>
>> http://www.corral.net/tech/gearcalc.html
>>
>> I am not sure that moving from a 3.07 to 2.88 will make a huge difference.


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