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Gear ratio for Barnesville, GA.
Posted: Tue Feb 05, 2008 10:19 pm
by Terry Armstrong
Trying to get my kart ready for the Vintage winternationals next month at Barnesville, GA.
Does anyone know what the correct gear ratio is for this track?
From the track satellite photo, looks like the front straight is around 400 feet long.
Thanks.
Re: Gear ratio for Barnesville, GA.
Posted: Tue Feb 05, 2008 11:29 pm
by mike branham
terry, last year we ran around 6.8-1 on single macs, 6.6-1 on 820. see you there mike
Re: Gear ratio for Barnesville, GA.
Posted: Wed Feb 06, 2008 12:29 am
by Tom Davis
Terry,
If they are running 10-66 and 10-64.........split it and go 10 -65 and carry a spare 66 and 67........remember you have an extra 2000 rpm to play with...all on the top if you need it.
Remember, no triple cheeseburger class here...
Now, go to bed !!!!!!!!!!!
Re: Gear ratio for Barnesville, GA.
Posted: Wed Feb 06, 2008 10:15 am
by Dan Flanders
Remember, no triple cheeseburger class here...
Hey Tom-
Hey, I resemble errr resent that remark!
I think the modern class equivalent is the Sumo or Shamu class.
I am definitely on the heavier side, and I ran a 10-72 with my Mc91 at Barnesville in August (the hottest-wettest day of karting ever) and it worked out great. Plenty of grunt for the S-turns and was still pulling on the straight, It is the same track set up I used for Davis. All ya'll smaller guys have a bit more gearing options for top-end speed. Its gonna be a lot of fun, I hope many of you are planning to attend.
Dan
Re: Gear Ratio For Barnesville, GA.
Posted: Thu Feb 07, 2008 12:48 am
by Michael Jackson
Single Mac with 350 lbs total weight can carry a 6.50 gear ratio. Twins can run a 6.40 gear. For the more robust racer like Dan a 7.00 -7.20 is better. Track length is ----------
Front straight length = 348 feet
Back straight length = 491 feet
Total track length = 1385 feet or 0.26 miles.
Hope this helps out.