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Gearing for the 1/8 mile


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#1 Dave Person

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Posted 18 March 2020 - 05:02 PM

Not sure where to start, 12/56??
Hardbody, chicagoland chassis. Grp 20 motor, koford .510 dia arm 44 degrees, 525 airgap
Koford ceramic mags, koford drag can shunted w/ ballbearings both ends. Rear tires are 1 1/16 tall. 1/8 mile track, 16v, Any ideas?




#2 MSwiss

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Posted 19 March 2020 - 10:20 AM

One of my drag guys said 14-52, with .450"-500" wide tires.

But added the caveat "But only if the motor is strong". LOL

Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
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Five-time USRA National Champion (two G7, one G27, two G7 Senior)
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#3 Bags

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Posted 19 March 2020 - 12:43 PM

What width tire ? Do you want to use a lot of glue on the starting line ? Are you bracket racing or heads up or index ?


Tom Bagley

#4 Dave Person

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Posted 19 March 2020 - 07:20 PM

Thanks Mike, yep the motor will be strong!
Bags, would like to use very limited glue and will just be bracket racing with .500 wide tires

#5 MSwiss

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Posted 19 March 2020 - 07:24 PM

I told Bernard you wouldn't even get out of bed for a weak motor. Lol

Mike Swiss
 
Inventor of the Low CG guide flag 4/20/18
IRRA® Components Committee Chairman
Five-time USRA National Champion (two G7, one G27, two G7 Senior)
Two-time G7 World Champion (1988, 1990), eight G7 main appearances
Eight-time G7 King track single lap world record holder

17B West Ogden Ave., Westmont, IL 60559, (708) 203-8003, mikeswiss86@hotmail.com (also my PayPal address)

Note: Send all USPS packages and mail to: 5858 Chase Ave., Downers Grove, IL 60516


#6 Dave Person

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Posted 19 March 2020 - 08:18 PM

Maybe for a good Ham & Cheese omelet but definitely not a weak motor!

#7 Bags

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Posted 20 March 2020 - 09:32 AM

Dave I agree with Mike, if you have to, go up to a 15 pinion you won’t need as much glue. Test n tune to where you like it.


Tom Bagley

#8 idare2bdul

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Posted 20 March 2020 - 12:20 PM

Can also depend on how much shut down the track has and the weight of your car unless you like loud noises.


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#9 Dave Person

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Posted 20 March 2020 - 02:53 PM

Thanks guys. Going to start at 14/52 and go from there. After some testing, if it requires to much glue on the launch, thought about opening up the air gap for a little softer launch. We'll see how it goes. Thanks again





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