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CMC Sub Class "e" for Enduro


Dflaherty

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After the 25 hour race I feel the CMC rules should be altered to allow an american "e" package on CMC cars prepped for endurance racing. Changes I see would be 1. the transmission, world class in my opinion is to weak for 25 hours and 2. the rear end is next in line.

 

3. Upgraded brakes and a 4. areo package would complete my list.

 

Except for fuel milage. The stock engined cars are competitive. They have proven they can finish and be competitive The engine hp limitation is the heart of CMC The rest of this stuff is a practical way to promote the series on a worldclass standard. The "e" package I propose would allow these CMCe cars to run in regular CMC events. The added weight might slow them down. Also, if you have a "e" package you have to run an enduro race. This and other ideas should improve the breed.

 

The Enduro Package might give CMC the true racing respect it deserves. It might also be salable for the street market. CMCe would look nice on the trunklid.

 

Dennis

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The 2007 rules allow Tremec 3550s and 9-inch/12-bolt rear ends for all cars, so #1 and 2 are covered, although I doubt a Ford 8.8 is truly a weak spot. More likely differential cooling is the issue, not inherent strength.

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Dennis..doesn't it make more sense for you to simply have a dual brake package...swap out a brembo package for enduros and the regular CMC brakes for CMC...same for the aero package...you've already got the option of stronger tranny and rear...you don't really expect to change the rules for a few cars do you?...RP

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I agree with Richard in that we need a seperate brake package for the "E" class enduro... The rear and the tranny were both running coolers and we had no diff issues.... I believe Keith did mention getting 2 Tremecs for the enduro next year... We had brake issues with keeping them cool and thats already being thought out. The other idea that Brady mentioned today was to get with NASA and see if we can change the 10 gallon limit to a 15 or so for the V-8's... the Civics and other 4 bangers were going 50-60 laps or more between fuel stops.

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Yea, I should have read the new rules but I didn't ., I have since,, And here is some more musings.

 

I have replaced a few rear ends this year and the 48 Mustang was having rear end problems at the end of the race. For endurance I'll take the big ones every time. The 9" Currie is about 300 lbs so this is no advantage in CMC racing.

 

Does one great new rule deserve another?

 

To me, the 3550 is kinda expensive I believe I can get its forefather -- a toploader.... cheaper. It's the only thing on my GT500 I never broke.

 

Quick change pads would be an example of brake modifications that only help the endurance side without adding any advantage.

 

Main thing on all this stuff is that it has be be tested somewhere. And the CMC rules are the same rules that have to be followed for the 25 hour.

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And the CMC rules are the same rules that have to be followed for the 25 hour.

 

Before even exploring a rule change in CMC, we'd need someone, anyone with an inside line into the National office to see if such changes to the CMC rules package would then bump our cars up to ES.

 

I did the 12 hours of Thunderhill 7 years ago and the "E" rulemakers were very keen to assure that we remained CMC legal. Last thing we would want to do is make a provision in our CMC rules for endurance racing only to get our cars bumped up a class and be uncompetitive with the faster cars due to some slightly bigger brakes and aero packages.

 

124075.jpg

124077.jpg

...3rd Place Finish in E1

124076.jpg

 

PS- You don't need no stinkin' aero!!!

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It will be interesting to see how they classify the CMC2 cars. I think they'll get their asses handed to them in the next class up, but they could be the shnizzle in this class.

 

Dennis...I think the common part of all those rear ends you keep having to fix is they were all driven by another dude carrying the Flaherty name...and it wasnt Ryan.

 

Taking a lesson from Audi, might the right answer on brakes be dry-break connectors and just replacing the entire caliper/pad/rotor assembly all at once? Anyone have any experience using those?

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Taking a lesson from Audi, might the right answer on brakes be dry-break connectors and just replacing the entire caliper/pad/rotor assembly all at once? Anyone have any experience using those?

 

I have a set and we had them on the car for the 12 hour.

Never needed them....and speed pins work just as good providing you only need a simple pad change.

 

-=- T

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You never needed them? Wow...I would've thought after that long the fluid would certainly be cooked, which would be the nice thing about just swapping out the entire caliper.

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You never needed them? Wow...I would've thought after that long the fluid would certainly be cooked, which would be the nice thing about just swapping out the entire caliper.

 

Depends on what brake fluid is being used. I've tried BF from other manufacturers, but ATE Super Blue has been the most consistent in my car. Typically, I'll flush it at least once a year. During an event @ MSR-C in April, I had the fluid tested - after a full year of abuse, it still tested excellent.

 

I won't use any other brake fluid in my car.

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Ditto.....Super Blue is awesome stuff. Most of us run it out here and haven't had a fluid issue yet.

 

The cool thing about the Super Blue is that it is just ATE's TYP 200 fluid with blue dye (TYP 200 is amber). So when you want to do a full system bleed you just change colors!

 

-Don

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I know it and SRF have proven to be able to withstand a full season if you dont melt the calipers or breach the system...I just figured in an enduro situation eventually the calipers would be unable to shed enough heat. I've run two enduros with a CMC car but one was in the evening and the other at night so the temps were much cooler than the middle of a Texas afternoon.

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Oh yeah? Well, you just wait until I show you how to increase your lap times by only using one gear all the way around the track!!

 

Oh...wait...

 

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