Drag Racing Discussions > Front Engine Dragsters

tire speed vs low gear ratio

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wideopen231:
Best looking thing for race car is ET slip with small numbers and big mph numbers. IMO

JrFuel Hayden:
WideOpen; the reason I suggested a 1.80 gear was he had trouble with tire shake so I thought the 1.80 gear would help getting the tire up to speed at the hit. More gear is a torque multiplier , so it multipies the HP, again more power helps with tire shake. Another option is to go with a lower [ bigger number] rear gear.
when I 1'st started JF racing I too met that "old guy from Kansas, he turned me onto a 1.68 1'st gear to slow up the tire speed some , now most of the jF guys are running 1.68 or 1.69 gear with one team running a 1.54.
Jon

wideopen231:
Oh . I understand your reasoning and was not replying to your suggestion,  Heck I agree that if not enough power or too much tire(same effect) you may have to hit it harder to break it loose. Main reason that I stated earlier that if I run into shake that I can not tune out other wise I will drop about 25 to 30% load in tank and see if that will get tire some more speed at hit, Hey even at 27 bucks a gallon its a cheap attempt to see if more power would help. Poor boy can't carry 3 or 4 sets of tires to swap arond.LOL

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