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Old 07-04-2006, 09:05 AM   #1
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Default Novak recommended FDR for GTB/4.5R ???

Anyone know what Novak recommends for the Final Drive Ratio on the GTB with a 4.5R in it.

Will be running touring car on concrete - medium size track.

Do not want it to thermal. Getting ready to buy one and need pinion while I am at it.
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Old 07-04-2006, 09:33 AM   #2
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Dude, I don't know why this is so Hard? Just read the last two pages of: http://www.rctech.net/forum/showthread.php?t=73384
They just talked about this.
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Old 07-04-2006, 10:00 AM   #3
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Well Dude (what are you 14). As the title of my thread says - "What does Novak recommend" - NOT what is Joe Blow running !!

Some guys run 8.6 other 10.2. I have seen others that say 12-13.

Maybe someone that can read will respond - What does Novak recommend as the FDR on the GTB/4.5R. It is not listed on the their website.
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Old 07-04-2006, 10:08 AM   #4
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In all honesty it is probably just best to keep going up a tooth until it thermals and then back it off one tooth.
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Old 07-04-2006, 10:36 AM   #5
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BB, you should post in the novak brushless thread, instead of creating your own. Imagine if everyone did that, man, what a mess!

That said,

They don't recommend anything cause it's impossible to recommend anything without knowing the air and track temperature. This past sunday, I was racing in the local championship with outside temps reaching 90+. If I drove it smoothly and with no crazy drift manouvres, I could keep it going with a 9,7 gearing. In the finals, it thermaled twice due to more aggressive driving style.
Indoor, in a more chilly 70 degrees, I'm running between 10 and 10,5 depending on track size. I've not had it thermal indoor yet.
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Old 07-04-2006, 10:41 AM   #6
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Well Jan,

Of course they recommend a FDR. They do it for the 5.5 and 6.5.
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Old 07-04-2006, 10:45 AM   #7
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What size track are you racing on? Pic maybe? That would give a good indication of what gearing to try.

Btw, also depends on how new your batts are.
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Old 07-04-2006, 10:53 AM   #8
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they do recomend a fdr it has not been put in the instructions yet.charlie said about a 10.5 i believe.i cant get that on my cyclone so i ran it at 10.125 and it was good
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Old 07-04-2006, 10:58 AM   #9
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Looks like Novak hasn't updated their documentation for the 4.5.

Based on Novak's recommendations for the 5.5 and 6.5, I'm guessing you will want to shoot for about 10.0 as a starting point, but go ahead and buy a few pinions on either side of that. Track size, temperature, driving style, etc.... will all impact your FDR.
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Old 07-04-2006, 01:01 PM   #10
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Thanks mini and pro. I knew someone had talked to Charlie.

I'll shoot for 10.25 - 10.50 and work up or down from there.
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Old 07-04-2006, 10:51 PM   #11
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10.20-10.5 works on all condition. good acceleration too
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