4.30 gearing
02-15-2010, 11:13 PM
#1
4.30 gearing I'm getting ready to buy a new rear end in the next few weeks and thinking of ordering it with 4.30's. Previous set up: 4L60E/4000 stall/4.10 gear on stock 10 bolt(took a ****
last track outing) and 28" tires. Vid below in my sig--new best n/a--1.49 60ft. Do you think 4.30's would too much gearing? Trying to set the best combo. Any suggestions is greatly appreciated.
Looking into an S60 or Moser 9".
last track outing) and 28" tires. Vid below in my sig--new best n/a--1.49 60ft. Do you think 4.30's would too much gearing? Trying to set the best combo. Any suggestions is greatly appreciated. Looking into an S60 or Moser 9". Last edited by BOLO; 02-15-2010 at 11:19 PM.
02-16-2010, 08:52 PM
#3
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I did a little math and with 28" tires and 4.30 gears you should be turning about 66-6700 at 122 mph ! If you lock up your converter the rpm's will be around 6300..... It looks like 4.30's will work . However , if you spray it you might run out of gear ! There is not much differance between 4.10's and 4.30's with a automatic !
02-16-2010, 09:31 PM
#4
02-16-2010, 09:45 PM
#5
Im a m6 gone 128.5 on them, didnt kick the shiftlight at 6500ish. But the autp cars can be alot diffrent for your convertor. You almost have to tri it and find out if you wnat to get really close to ideal.
remebed too 28 etdrags grow to 29.0..... 29.5? maybe useing the gear/mph charts
remebed too 28 etdrags grow to 29.0..... 29.5? maybe useing the gear/mph charts
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02-17-2010, 07:42 AM
#10
I did a little math and with 28" tires and 4.30 gears you should be turning about 66-6700 at 122 mph ! If you lock up your converter the rpm's will be around 6300..... It looks like 4.30's will work . However , if you spray it you might run out of gear ! There is not much differance between 4.10's and 4.30's with a automatic !
