*** The official VINTAGE OFFROAD NATIONALS thread ***

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Brandon G
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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by Brandon G »

Mark Westerfield wrote:28/81 for a novak 17.5 with lipo with a 2.25 stealth and current 2.2 buggy tires.
Wow, that's like a 6.5:1 final ratio.... Are you sure you didn't mean 18t pinion? 28 seems a little large. Most stock brushed motors (I know you are using BL in this case) like a 9.5:1 final ratio for 2wd buggy. (please understand I could be entirely wrong here) In my case when switching to BL from Br, I only made a 1-2 teeth larger change on the pinion.

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by Bongo Fury »

bngiles wrote:
Mark Westerfield wrote:28/81 for a novak 17.5 with lipo with a 2.25 stealth and current 2.2 buggy tires.
Wow, that's like a 6.5:1 final ratio.... Are you sure you didn't mean 18t pinion? 28 seems a little large. Most stock brushed motors (I know you are using BL in this case) like a 9.5:1 final ratio for 2wd buggy. (please understand I could be entirely wrong here) In my case when switching to BL from Br, I only made a 1-2 teeth larger change on the pinion.
Actually that's a pretty good/safe starting point for a 17.5. Some guys go even higher. We've been running 5.6 to 6.4 FDR, even with some timing from the speed control. Some guys are using no slipper adapters so they can run smaller spur gears. Definitely start with the smallest spur that fits/is available. I know its hard not to think you are going to lose punch, but it never seems to happen. It still attacks the big Supercross style jumps.

Of course whether or not you want to run a vintage car like this is perhaps another matter, but the 17.5 motors can handle it. Unless perhaps if its significantly overweight, or an older higher drag tranny (6 gear? bushings, etc). The gearing mentioned is on a modern buggy right at the weight limit, using lipo.

But we also run brushed 27T stock higher, up around 8.0 FDR, so your mileage may vary as they say. Of course with brushed you can't run real long this way, but no issue so far with the brushless.

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by Mark Westerfield »

alright guys, here is my RC10 Team Car with a 17.5 Novak brushless motor and lipo battery. I'm (expert driver) racing the guys in the amateur 4wd class. My fast lap was a 16.6 in that race and my time was 27 laps in 8:01.

http://www.youtube.com/watch?v=qPmuohuUBQQ

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by MelvinsArmy »

Mark Westerfield wrote:alright guys, here is my RC10 Team Car with a 17.5 Novak brushless motor and lipo battery. I'm (expert driver) racing the guys in the amateur 4wd class. My fast lap was a 16.6 in that race and my time was 27 laps in 8:01.

http://www.youtube.com/watch?v=qPmuohuUBQQ
I thought I was excited about this race before. Now I am.... well in the words of Stimpy: "I'm so excited I can barely contain myself!" :D Thanks for posting that video, it's great to get a picture of what the track is like, it looks like a good one. I can't wait!

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by tecnica2001 »

Man, I'm gonna have to get there soon to get a couple of laps in, I haven't raced anything in so long, it's definitely going to be fun... :D
Life is like a box of chocolate, you never know what R/C car you're gonna get next!!!

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by carloco8 »

Nice vid Mark, the car looked overly dialed.......... traction roll!
Old school racing all the way!

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by Mark Westerfield »

carloco8 wrote:Nice vid Mark, the car looked overly dialed.......... traction roll!
Yeah, I had just raised my ride height before the race and I raised it a bit too much :roll: The diff needs to be rebuilt pretty bad too, it will get a little more tweaking here and there but overall its pretty close to where it needs to be. I'll work on posting a setup sheet for it when I'm satisfied with it. Then I get to work on the vintage 4wd :twisted:

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by badhoopty »

thanks for sharing your setup info, it is MUCH appreciated.

thanks also for the vid, there is absolutely no way i will be able to keep up.

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by covell2 »

very nice mark! now I am pumped too. cant wait to see your set up sheet. is this the same layout that the nationals will be held on?

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by mrlexan »

Just FYI guys, I will be posting some pics here and also sharing some with Jimmy at Oople.
I am not here cause I am playing photographer and on my mountain bike.
www.gojammedia.com

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by scr8p »

thanks for the video. now i know where i'm gonna stuff hoopty every time i come up to lap him. :P :P


:mrgreen: :lol:

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by covell2 »

mark ygpm

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loneranger
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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by loneranger »

Are the mains and qualifiers 5 or 8 minutes?

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by tecnica2001 »

I asked before and they said 5 minutes :)
Life is like a box of chocolate, you never know what R/C car you're gonna get next!!!

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Re: *** The official VINTAGE OFFROAD NATIONALS thread ***

Post by loneranger »

Cool, thanks.

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