I went to the track an I think my 60ft should be a bit better with the new bfg's.The 1st 60ft was 1.93 an the other was 1.92. :shrug:
Bfg ??
- Thread starter F8LVNM
- Start date
About 14-15.
Did you heat them up real good?
Yep 4-5 sec, I just couldnt get it in the right rpm range in the two runs.
About what rpm range should I dump the clutch at.(or should I even dump the clutch.)
Dumping the clutch is a lot easier on the clutch than slipping it. But harder on drive train parts. One trick I used when I was NHRA racing was to preload the drivetrain just prior to launch. I would stage and set the line lock, then when the tree started down, I would bring my rpm's up and very lightly load the drivetrain by slightly letting out the clutch and holding it there. Then just dump it and go. It's harder on clutches, but I changed them every few races anyway. But I NEVER broke a tranny or rear end that way...and believe me...that car left HARD!
You have to get in the tracks of all the other cars. There is a sort of lane created from all the cars. I noticed every time I was not in the sweet spot I would spin and get bad times. Now I have been getting solid 1.8 and 1.79s and thats with Nittos. I leave @ 4k..I don't side step it though.
Thanks, i'll give all of your tips a try. If yall have anymore info let me know.
Also, no need to smoke the BFGs for very long. They don't take near the burnout of the Nittos, so don't waste your tread! :beer:
I have a question, how hard can you launch an irs with slicks and level 5 axles and billet flow brace and all of the goodies?
F8LVNM said:
Come on bro. You can have the best tire in the world but if you don't have the suspension set up to load the rear tires on launch with the proper size tires and air pressure for your combo you're pissing in the wind!! :bash: Case closed.
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anvrsy red vert said:
Good point.
FireRed04Vert said:
Sounds good. Did you ever red light due to the car pushing thru the line lock?
The only time I ever pushed the car through the line loc was the first pass after I installed a new design McLeod clutch. They told me you need xxx amount of clearance at xxxx amount of rpm. I said WTF???? How are you supposed to measure disk clearance at rpm??? I said screw it and set it up as normal. I staged the car, set the line loc, brought the rpm's up...and the damn thing left!!! It seems this particular clutch had a different style of centrifugal assist that you had to compensate for due to the extreme lightness of the pressure plate. Once I had that figured out, it was a helluva clutch.
Set the line loc hard. The car won't move. There are a some racers that actually install a brake pressure gauge to make sure they have the line loc set hard enough. Remember...you are just slightly preloading the drivetrain. You will feel the car take up the drivetrain slack...and that's all you want.
Set the line loc hard. The car won't move. There are a some racers that actually install a brake pressure gauge to make sure they have the line loc set hard enough. Remember...you are just slightly preloading the drivetrain. You will feel the car take up the drivetrain slack...and that's all you want.
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