rear gear ratio

astikhossw · 07-22-2013, 10:41 PM

Hey guys i need i little help with gear selection for running superstreet,i have a 5.67 gear in my car now and the engine revs up to 8100 rpm in the 1/4 and my speed is about 129, but my engine peaked hp is at 7600 to 7700 rpm on the dyno should i go with a 5.43 to lower the rpm and increase the mph or leave it as is to run superstreet.

C and W Racing · 07-23-2013, 08:02 AM

If it was my car, I would change the gear. I'm assuming you are running a small block with that much gear. In my super gas car, I run a 4.10 and have been thinking of trying a 3.89
Chuck

astikhossw · 07-23-2013, 11:11 AM

It is a ford v-6 that i have been running in superstreet a little at 2450 lbs.,but i have been running the 5.67 gear and was just wondering if the trend is to get the mph up as much as possible and still keep the engine in are above peak hp.Thanks

cdh124 · 07-24-2013, 07:53 AM

Quote:

Originally Posted by C and W Racing

If it was my car, I would change the gear. I'm assuming you are running a small block with that much gear. In my super gas car, I run a 4.10 and have been thinking of trying a 3.89
Chuck

Chuck,
What size tire are you running?
Doug Humes

C and W Racing · 07-24-2013, 08:04 AM

I run a Hoosier 33.5/17-16 co7 compound
Chuck

supergas4 · 08-07-2013, 01:29 PM

a 6cyl.runs 10.90 at s/st weight ?

astikhossw · 08-07-2013, 10:43 PM

yep as low as 2000 lbs and it can run 10.08 130 mph wide open.

07-22-2013, 10:41 PM	#1
astikhossw Member Join Date: Jul 2008 Location: moreno valley Ca Posts: 266 Likes: 2 Liked 20 Times in 9 Posts	rear gear ratio Hey guys i need i little help with gear selection for running superstreet,i have a 5.67 gear in my car now and the engine revs up to 8100 rpm in the 1/4 and my speed is about 129, but my engine peaked hp is at 7600 to 7700 rpm on the dyno should i go with a 5.43 to lower the rpm and increase the mph or leave it as is to run superstreet.

07-23-2013, 08:02 AM	#2
C and W Racing Senior Member Join Date: Jul 2007 Posts: 557 Likes: 6 Liked 13 Times in 3 Posts	Re: rear gear ratio If it was my car, I would change the gear. I'm assuming you are running a small block with that much gear. In my super gas car, I run a 4.10 and have been thinking of trying a 3.89 Chuck

07-23-2013, 11:11 AM	#3
astikhossw Member Join Date: Jul 2008 Location: moreno valley Ca Posts: 266 Likes: 2 Liked 20 Times in 9 Posts	Re: rear gear ratio It is a ford v-6 that i have been running in superstreet a little at 2450 lbs.,but i have been running the 5.67 gear and was just wondering if the trend is to get the mph up as much as possible and still keep the engine in are above peak hp.Thanks

07-24-2013, 08:04 AM	#5
C and W Racing Senior Member Join Date: Jul 2007 Posts: 557 Likes: 6 Liked 13 Times in 3 Posts	Re: rear gear ratio I run a Hoosier 33.5/17-16 co7 compound Chuck

08-07-2013, 01:29 PM	#6
supergas4 Member Join Date: Jun 2010 Posts: 159 Likes: 0 Liked 6 Times in 5 Posts	Re: rear gear ratio a 6cyl.runs 10.90 at s/st weight ?

08-07-2013, 10:43 PM	#7
astikhossw Member Join Date: Jul 2008 Location: moreno valley Ca Posts: 266 Likes: 2 Liked 20 Times in 9 Posts	Re: rear gear ratio yep as low as 2000 lbs and it can run 10.08 130 mph wide open.

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