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Legal Transmissions?


rocketman

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I'm looking into a long-term replacement for my old T5, read in the rules where any synchronized tranmissions are legal, so my question is twofold:

 

What is being used by most participants? Tremec, T5, T56, etc?

 

Is 6 speed legal?

 

Thanks for any help.

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Old saying....."RTFM".

 

NASA 2003 AI Rules, section 7.9: Drivetrain

 

7.9.2 AI cars must use synchromesh-type transmissions. Non-synchro transmissions such as Jericos are not allowed in AI.

 

Looks like a T56 is ok, as well as a TKO.

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Damn....don't take it so seriously Mike. It was a joke - no offense meant.

 

It wasn't a stupid question at all.

 

I need to brush up on my 'net etiqutte - I think I've picked up too much cc.com-esque.

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No worries, I thought I'd done something to get in hot water. Those rules are something I read over and over when we first built the car and I still missed plenty.

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So, let me ask this then. Would someone be better off with a T56 or TKO? I'm just wondering about the tracks and which gears are going to be used more often. I know at TWS a larger 5th gear is needed to pull down the straight, but don't know if a 6th gear would ever be used. I don't know the weights of the T-5 vs. TKO vs. T56 either. I would think that matching the best gearing overall would be a key consideration to maximize powerband of the motor coming out of the corners. I might be way off base here..but just thinking outloud.

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Damn....don't take it so seriously Mike. It was a joke - no offense meant.

 

It wasn't a stupid question at all.

 

I need to brush up on my 'net etiqutte - I think I've picked up too much cc.com-esque.

 

Remind me not to breach protocol around you Adam. CC has done corrupted you.

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Damn....bust a fellow racer's chops, and you start calling me "Saddam". No worries - the only gas I'll be using is 93 octane.

 

Mike - how is it your post showed up as Guest?

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Just thought I'd put in my 2 cents since we've recently run at Fontana, which I believe is about as fast as CMC cars will go. Running at about 150mph, I think you're more limited by horsepower than by running out of gear. I have a 4th gen Camaro, and never used 6th at Fontana. In fifth, I would hit about five grand going into turn 1, but the rpms had basically stopped rising. I have 3.42 rears. Hope the info helps.

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So, let me ask this then. Would someone be better off with a T56 or TKO? I'm just wondering about the tracks and which gears are going to be used more often. I know at TWS a larger 5th gear is needed to pull down the straight, but don't know if a 6th gear would ever be used. I don't know the weights of the T-5 vs. TKO vs. T56 either. I would think that matching the best gearing overall would be a key consideration to maximize powerband of the motor coming out of the corners. I might be way off base here..but just thinking outloud.
A TKO 2 is a better choice. You will never use 6th gear in a CMC car. At Fontana, our AIX car had plenty of legs with 3.89 gears and the .83 5th.

 

http://www.ttcautomotive.com/English/products/tremec.asp

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Adam,

 

I'm not sure why I showed up as guest in the first post in this thread, up above it shows "Log out [ Admiral ] so I thought I was logged in, but the second guest post is not mine. I don't use names like "Saddam" in jest.

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