[Z06] NEW BEST TIME !!!
Race Director
Joined: Aug 2000
Posts: 10,649
Likes: 31
From: Central Florida
Re: NEW BEST TIME !!! (LingenfelterC5)
Nice run!
If the car bogs at a particular launch rpm, suggest you raise it by 200-300 on the next pass and do so successively until you find the sweet spot. At the sweet spot rpm the tires will spin just a little and then hook hard and the rpm will immediately climb very fast. Usually this occurs between 3000 and 4200 on DRs. The exact rpm depends on the interrelationship among many variables. But to keep the variables manageable, changing one at a time, such as the launch rpm, brings consistency faster.
Doing this consistently requires getting the clutch out fast, certainly within the first 4'-10' of forward movement; not a side-step nor a pop...but a quick release.
I'd suggest avoiding launches above the low 4000s, north or there the wear-and-tear to the clutch and drive line entails substantially more risk of premature failure.
Ranger
If the car bogs at a particular launch rpm, suggest you raise it by 200-300 on the next pass and do so successively until you find the sweet spot. At the sweet spot rpm the tires will spin just a little and then hook hard and the rpm will immediately climb very fast. Usually this occurs between 3000 and 4200 on DRs. The exact rpm depends on the interrelationship among many variables. But to keep the variables manageable, changing one at a time, such as the launch rpm, brings consistency faster.
Doing this consistently requires getting the clutch out fast, certainly within the first 4'-10' of forward movement; not a side-step nor a pop...but a quick release.
I'd suggest avoiding launches above the low 4000s, north or there the wear-and-tear to the clutch and drive line entails substantially more risk of premature failure.
Ranger
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