Gday guys, Im running a GT2860 on a Gen1 Busa with 9"over arm and Hays clutch. So far Im only tunning 9psi but intend to go to 15psi.
I currently run 18/45 gearing and am getting 1.55 60'. I am getting mixed feedback on whether or not to change the gearing. Some say the turbos like the load and I should stick with current gearing and cross the line in 5th gear. Others say to run something like 17/48 and run it out to 6th gear.
My best ET so far is only a 9.42 @ 144mph as I am still working out the Hays clutch and am a heavy boy.
Could I get some feedback on gearing from guys who have experience with this on the 1/4 please? Not interested in street performance or what you heard or read. Cold hard facts only thanks.
I currently run 18/45 gearing and am getting 1.55 60'. I am getting mixed feedback on whether or not to change the gearing. Some say the turbos like the load and I should stick with current gearing and cross the line in 5th gear. Others say to run something like 17/48 and run it out to 6th gear.
My best ET so far is only a 9.42 @ 144mph as I am still working out the Hays clutch and am a heavy boy.
Could I get some feedback on gearing from guys who have experience with this on the 1/4 please? Not interested in street performance or what you heard or read. Cold hard facts only thanks.