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post #1 of (permalink) Old 07-02-2001, 05:08 PM Thread Starter
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Gear selection questions

I am thinking about running my jeep at the local mud race in a few weeks and have a couple of questions.
Here is what I have: 401 v8, t-18,dana 300, 4.10 locked dana 60's and 38's.The track is about 1/8 mile, or less.
My questions are: What is a good gear to run in and do I want hi or lo gear in my transfer case? Do I need to air down my tires for traction? My engine is pretty strong but don't want to hurt it.
My biggest concern is getting sideways. The jeeps don't seem to do very well 'cause of the short wheelbase.
I built this for going slow, but I gotta try this...
Thanks, Ricky...seeya...

CJ-7,401,T-18,Scout D 300,Pro-Jection,Dana 60's,Detroits,38" Hawgs, 4" BDS SOA,
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post #2 of (permalink) Old 07-03-2001, 07:38 AM
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Re: Gear selection questions

1/8 mile seems kinda long. Is it a deep pit or a shallow fast track. Usually fast tracks are no longer than 225 feet. If it is a 1/8 mile and kinda shallow i would run high range, if you try to run low range you'll run of of RPM really quick. Stock jeeps are sometimes hard to handle on the shallow tracks because of the wheelbase. What gears do you have now? what size tires and what kind? Me personally i'm running 5.13 gears and low range with 35's on tracks up to 200 feet. Any suggestions TEX?

post #3 of (permalink) Old 07-03-2001, 10:11 AM
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Re: Gear selection questions

<font color=purple>Okay, here's what I'm gonna suggest with 4.10's, a 2.6 low range, 38's, a 401, and a T-18. Counting "granny" gear as "1st", I'd pick 3rd gear, low range. Should give a final-drive in the 18:1 range & would be just about right. 4th low would be too much & 2nd low would just be all revs & no tire speed. Be sure to pop the clutch with some revs already built up a bit for a good jump & to get the RPM's moving. Good luck!</font color=purple>

TEX

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post #4 of (permalink) Old 07-03-2001, 11:07 AM Thread Starter
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Re: Gear selection questions

Thanks for the replys. I think I am way off about the 1/8 mile track too.It is pretty short, it is deep at the start (2/3)then kinda thins out at the last bit. I will try y'alls suggestions on some dirt and see what I do. Thanks, Ricky...seeya...

CJ-7,401,T-18,Scout D 300,Pro-Jection,Dana 60's,Detroits,38" Hawgs, 4" BDS SOA,
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post #5 of (permalink) Old 07-03-2001, 10:22 PM
 
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Re: Gear selection questions

I help put on a mudbog here in Jersey every year. The best thing is to have an automatic. But since you have a stick and 4.10's aren't that low, I'd run second gear 4wd low. The mistake is guys try to shift thinking they'll gain speed. When they bog down, they try to down shift so the motor won't stall. That stops them in their tracks. Our rules state it's over when forward momentum stops. Use 2nd gear and resist the urge to shift. When you hit the deep stuff, just chug along at a high RPM to keep the tires clean and turn the steering wheel back and forth to grab fresh goo and pull you along.

Good luck!!!

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