Gear ratio Question
#1
Gear ratio Question
I need a recomendation on which gears to put in the Demon.
Last time out with the car I was shifting at 6800 rpm, but crossing the line at around 6200rpm.
340, 13-1comp, .530 solid cam,850 holley,
4500 converter, 4:10 gears, 27.8"tires (325x50x15's)
Should I go with the 4:88's, the 4:56's or stay with the 4:10's.
I have all three. the 4:10's are on a spool and the other's are limited slip.
Suggestions,comments?
Last time out with the car I was shifting at 6800 rpm, but crossing the line at around 6200rpm.
340, 13-1comp, .530 solid cam,850 holley,
4500 converter, 4:10 gears, 27.8"tires (325x50x15's)
Should I go with the 4:88's, the 4:56's or stay with the 4:10's.
I have all three. the 4:10's are on a spool and the other's are limited slip.
Suggestions,comments?
#4
Originally Posted by Mopower71
Let's see, that's
4:11= 6200rpm
4:30= 6400rpm
4:56= 6600rpm
4:88= 6800rpm
4:88 work out to be close that way also.
4:11= 6200rpm
4:30= 6400rpm
4:56= 6600rpm
4:88= 6800rpm
4:88 work out to be close that way also.
Are you pulling hard at those rpm's?
#5
I ran the combo through Desktop dyno2000 and the hp should peak around 6500.
It didn't feel like it dropped any power when I ran it all the way to the rev limmiter at 7000. I was real slow pulling the shifter on that one. But that's the 12.60 run.
It didn't feel like it dropped any power when I ran it all the way to the rev limmiter at 7000. I was real slow pulling the shifter on that one. But that's the 12.60 run.
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