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Rear gear ?
http://motorsportsvillage.com/forum/viewtopic.php?f=8&t=9677
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Author:  Beretta [ Sat Oct 20, 2012 10:35 am ]
Post subject:  Rear gear ?

When running the 1/4 mile my rpm at the stripe is 7620 with the 4.29 gear...Question is If I go with a 4.11 rear gear
do you think it will help any as the rpm will be somewhere about 7300.. #-o

Author:  Ken0069 [ Sat Oct 20, 2012 12:45 pm ]
Post subject:  Re: Rear gear ?

At what RPM do you make the gear change?

Author:  rick360 [ Sat Oct 20, 2012 12:47 pm ]
Post subject:  Re: Rear gear ?

Beretta wrote:
When running the 1/4 mile my rpm at the stripe is 7620 with the 4.29 gear...Question is If I go with a 4.11 rear gear
do you think it will help any as the rpm will be somewhere about 7300.. #-o

It won't lower your ET if that's what you're after. your peak hp was at 7500 and it may have liked higher than that since that was as high as dyno'd.

Rick

Author:  Beretta [ Sat Oct 20, 2012 3:46 pm ]
Post subject:  Re: Rear gear ?

Ken0069 wrote:
At what RPM do you make the gear change?


7000 usually, but have been experimenting some but seems not to make any difference..

Author:  Beretta [ Sat Oct 20, 2012 3:49 pm ]
Post subject:  Re: Rear gear ?

rick360 wrote:
Beretta wrote:
When running the 1/4 mile my rpm at the stripe is 7620 with the 4.29 gear...Question is If I go with a 4.11 rear gear
do you think it will help any as the rpm will be somewhere about 7300.. #-o

It won't lower your ET if that's what you're after. your peak hp was at 7500 and it may have liked higher than that since that was as high as dyno'd.

Rick



Well that 8.08 that's in my sig was with a 4.57 gear but it was way over 8000rpm... O:)

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