Converter slip problem?
07-31-2010, 03:47 PM
#1
Converter slip problem? I believe I have a converter slip problem. I keep calculating between 22-26% slip. Is this right? What am I leaving on the table?
26" hoosier QTP
7.53 et 1/8th mile
going through the traps at 5800 rpm @92 mph
Any help would be appreciated!
Thanks,
Austin
26" hoosier QTP
7.53 et 1/8th mile
going through the traps at 5800 rpm @92 mph
Any help would be appreciated!
Thanks,
Austin
08-11-2010, 05:41 PM
#6
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Use this calculator to determine % converter slip...
http://www.tciauto.com/Pages/418/calculators.aspx#4
http://www.tciauto.com/Pages/418/calculators.aspx#4
08-11-2010, 07:40 PM
#7
From what I have seen elsewhere on the board, around 4% slip unlocked is good.
Although you have to take into acount various converter slip and tire growth, the formula to tell what rpm you should be at for a given mph is. . . . . .
Mph x 1056 x trannsmission gear ratio x rear axle ratio ÷ tire height ÷ 3.14159 = rpm
(if the tire height was constant and there was no drivetrain slip)
Although you have to take into acount various converter slip and tire growth, the formula to tell what rpm you should be at for a given mph is. . . . . .
Mph x 1056 x trannsmission gear ratio x rear axle ratio ÷ tire height ÷ 3.14159 = rpm
(if the tire height was constant and there was no drivetrain slip)
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08-11-2010, 08:12 PM
#8
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From what I have seen elsewhere on the board, around 4% slip unlocked is good.
Although you have to take into acount various converter slip and tire growth, the formula to tell what rpm you should be at for a given mph is. . . . . .
Mph x 1056 x trannsmission gear ratio x rear axle ratio ÷ tire height ÷ 3.14159 = rpm
(if the tire height was constant and there was no drivetrain slip)
Although you have to take into acount various converter slip and tire growth, the formula to tell what rpm you should be at for a given mph is. . . . . .
Mph x 1056 x trannsmission gear ratio x rear axle ratio ÷ tire height ÷ 3.14159 = rpm
(if the tire height was constant and there was no drivetrain slip)
I thought that I may have had a slippage problem lately.
08-12-2010, 10:22 AM
#9
They say that 7-12% is normal in the 1/4. Mines sitting around 10-12% after I finally went to a 1/4 mile track.
Slip isnt always a bad thing. To much slip is. I spent a lot of time talking to ATI and Circle D on this thing. Im sitting alright. But when I spray it will be a different story im sure.
Slip isnt always a bad thing. To much slip is. I spent a lot of time talking to ATI and Circle D on this thing. Im sitting alright. But when I spray it will be a different story im sure.
08-12-2010, 06:18 PM
#10
I have found that 9-10% slip performs best for me. Tighter effects short times and looser effects top end... I've pulled many converters over the years to get what I want out of them. I've moved to the bolt together converters now to make the necessary changes myself...
