Re: slicks
 

There is no such thing as centrifugal force. What you're thinking of does exist, that's just not a real term.

Re: slicks
 

you are right these guys are getting confused on wtf they are thinking. the bigger your tire is the "harder its going to be to go fast" but your going to be able to get going faster as in top speed, mph. it changes your gearing sorta. the smaller the tire you have the easier its going to be to turn the tire but your not going to be able to hit as high top speed, mph.

Re: slicks
 

Actualy, a bigger tire could help your MPH by turning 1-2-3 into useable gears insted of just tire burners. There's more than one abosolute determining factor in selecting the tire size. It will take more energy to turn them because the extra height on the tire adds load to the engine, but... if your car can push them it will net you a higher mph for the gear/rpm your in/at. Thats pretty much if your power level is to high for how close your gearing is.

Re: slicks
 

when I run my 22" slicks I hit a rev limit set at 9100rpm in 4th gear as soon as I cross the 1/4 mile. when I run the 25" I dont even come close to the rev limit. I dont have an expalnation why.

Re: slicks
 

because the 25 inch slick has a larger circumference. the 25 inch slick takes you 6.5416 feet per rotation, where the 22 inch slick takes you 5.756 feet per rotation

Re: slicks
 

so actually my friends are right about the bigger tires being better for drag racing.

Re: slicks
 

well, its something you have to ballance because of the added torque on your engine.

Think of using a ratchet. You have a bolt to turn thats just not moving. So you go and grab the breaker bar to put more torque on the bolt. Easier to turn now, right? Well, when you run larger tires, you have the oppisate effect of that on your engine. Its more of a load on your engine to push that 6.5 feet out in a rotation than it is for it to pull your car 5.7 feet.

Re: slicks
 

You want tire OD to get you exactly through the traps at the top of 4th @ redline. You're perfect as you sit, Leroy, but if you turn up the boost (or get better launches causing you to redline in 4th sooner) then you need a bigger OD tire.

Got any video of these sucky launches of yours? We can critique and offer suggestions (some of them constructive).

Re: slicks
 

I have no videos, some people I knew took some but I never get them.
it is so embarassing, I will go up run a 12, then go again run a 14, it sucks, I cant drive for ----, but the funny thing about it I stiff win the race.
my problem is sometimes missing shifts, shifting too early because I dont have any traction, and I shift before I hook up.
when I use fts and ftl I have a dad habbit of resting my foot on the clutch so I hit my rev limit at 6500rpm thats where my fts is set at. its embarassing sometimes. because I just started racing on tracks, I used to be streets. but I am using this as a learning experience for next season.

Re: slicks
 

You can adjust the clutch switch to help with the FTS problem.

Get video of your launches, and timeslips showing 60' times.

Any idea why you miss gears? You get excited, or sloppy linkage, etc?