Double A Posted March 30, 2004 Report Share Posted March 30, 2004 need help what would be a good gear to run at ThunderhillRaceway in a Ford 4 cylinder car. Link to comment Share on other sites More sharing options...
Double A Posted March 30, 2004 Author Report Share Posted March 30, 2004 I'm sorry, what is the total gear ratio at THR. Link to comment Share on other sites More sharing options...
Truck99 Posted March 30, 2004 Report Share Posted March 30, 2004 Double A, I'm not sure if the 4-cylinder cars would be different, but most of the full size cars running manual transmissions are using anywhere between 6.00 and 6.50 with the most common probably being 6.33. cs Link to comment Share on other sites More sharing options...
1-Crew Posted March 30, 2004 Report Share Posted March 30, 2004 It will depend on your motor combination (what RPM do you want..). The TPS cars run a shorter tire than any other class so their gear choices aren't necessarily comparable. We run ~5.46 overall to get ~7700 RPM on our TPS car (with the new track configuration). Link to comment Share on other sites More sharing options...
BigDish2 Posted March 30, 2004 Report Share Posted March 30, 2004 We run 6.20 range at about 8100rpms or higher in the TPS 1 car. Like 1-Crew said depends on your motor modifications/combination and what you cam range is. Link to comment Share on other sites More sharing options...
97car Posted March 30, 2004 Report Share Posted March 30, 2004 I have heard between 6 to 6.5 gear ratio with the old configuration,If you could get 7700 with the new configuration that is good news for me,I won't need another set when the car is done. Link to comment Share on other sites More sharing options...
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