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TT3 theorhetical, what would you build

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evojim
At a certain point it becomes hp vs aero, not weight, in acceleration though.

 

I think a lot of folks don't consider this, this is absolutely true, and on a car with aero, I think folks would be surprised at how "slow" of speed that crossover point is.

 

Believe me, I drive a shoebox that when it is running right at least stays in the ballpark of the C5z's for the first half of that back straight at Road Atl, then exactly ^this takes effect.

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trigger

Terry, I think your on to something with the C6 idea. Think gran sport. its the Z06 widebody that can stuff 345's under it, weights in at 3300lbs, and has the LS3, which puts 385ish at the wheels in stock trim. ~3500lbs/385whp = 9.09. add pimp suspension and stir around track. that would be a killer recipe.

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Cobra4B
Detuned C6Z is interesting also.

 

This

 

I don't think people realize the strength of the C5/C6 isn't the car itself (yes they are an excellent platform out of the box). Where it shines is the aftermarket, massive "toy" stores of real race parts. Not ebay wings and splitters, we are talking real world ALMS Factory, Europe GT, World Challenge/Grand Am bits - carbon bodies, real aero, suspension bits, and fairly accessible data from established race teams. I would say you could probably rival all that with the 911 race car variants, but you are talking a three fold increase in price.

Stop giving away our secrets

 

You'd have to really choke a C6Z to get in in TT3/ST3. A local member recently built one for ST2/TT2. Car has no aero and the engine is 100% OEM stock (paper filter) and the car has ballast.

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Varkwso
Detuned C6Z is interesting also.

 

This

 

I don't think people realize the strength of the C5/C6 isn't the car itself (yes they are an excellent platform out of the box). Where it shines is the aftermarket, massive "toy" stores of real race parts. Not ebay wings and splitters, we are talking real world ALMS Factory, Europe GT, World Challenge/Grand Am bits - carbon bodies, real aero, suspension bits, and fairly accessible data from established race teams. I would say you could probably rival all that with the 911 race car variants, but you are talking a three fold increase in price.

Stop giving away our secrets

 

You'd have to really choke a C6Z to get in in TT3/ST3. A local member recently built one for ST2/TT2. Car has no aero and the engine is 100% OEM stock (paper filter) and the car has ballast.

 

I saw the dyno sheet on one. I like the torque curve. Alot.

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SnoXRacer183

I'd like to think a 350Z would do alright if properly set up for TT3

 

Turbo motor with 380whp or so which would be a reliable HP set up

3300 lbs

with Aero

 

I haven't been around NASA very long at all but with a good driver I'd like to think it would be competitive

Edited by Guest

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kbrew8991

Swap out the turbo for an SC and that's similar to the other NASA-TX TT directors car. Quite a few old TTS records

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SnoXRacer183
Swap out the turbo for an SC and that's similar to the other NASA-TX TT directors car. Quite a few old TTS records

 

Good to know! I hope to be going this route as soon as my Cobra sells.

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kbrew8991

I'd ping him and see what he'd share as far as "I wish I did it that way first" or "definitely don't do that!"

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Varkwso

The 350/370Z did not.fare to well in TTA/PTA in southeast against C5. The Spec 350Z is sure not equal to the old C5 PTA. But it may be developed better now.

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trigger

its hard to beat balanced weight on double wishbone suspension (vs struts), a slippery body, and fenders wide enough for 315/335 tires.

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PoBoyR6
Sitting here drinking my kool-aid, I'm hoping someone will say E46 M3

 

 

How have you been doing with your E46M3...since your sig says you're running TT3/2/1?

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RockLobster

I'll play...

 

2851 lbs RX-8, OEM aero

 

Turbocharged 13B

353 WHP flat dyno curve with electronic boost control for bleeding boost with RPM

 

4 doors +0.4

2-Rotor turbo +0.3

275 A6s +0.4

weight adj -0.15

 

9.02:1

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kbrew8991

RX8 does not get the 4 door credit.

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RockLobster

where does it say that?

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kbrew8991

Greg himself since day 1 of the 4-door hp/weight credit

 

I don't particularly like it as it would benefit me (well, benefit my "crap, the racecar's down so lets run the fun street car effort anyway) but that's what it is. And honestly, it doesn't really deserve it as much as some other cars that should get the credit but don't (namely 3 door wagon style hatchbacks...).

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RockLobster

It's not in the rules...

 

Ive had this argument with another national director about the unwritten rules. While it may impact guys at nationals if you don't put it in the rules it does not apply to my region...

 

we cant arbitrarily enforce emailed rule clarifications...

 

so he should probably make a bulletin (and add it to the next version) if he wants it enforced nation wide

Edited by Guest

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kbrew8991

I'd be for a notation with every car's listing in the TT rules if it qualifies for the 4 door credit or not. That'd allow us to possibly more equitably apply it as well...

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RockLobster

That would make sense to me....

 

The big problem for me is standing in the tech area face to face with a driver who is all mad about something and i cant point to anything in the rule book(s) to back up what im saying. I simply won't do it....

 

If it has feathers, webbed feet, waddles, and quacks....it's a 4-door....or something like that.

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kbrew8991

Except this is really a case where a real 4 door quacks, waddles, has feathers, etc and the RX8 really only has feathers

 

The shape it has the car really doesn't *need* the 4-door credit. It's plenty slippery as is.

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RockLobster

well, until i can point to something in a rule book, i can't enforce it...

 

the notation would be a little awkward being its probably more common to have 2 and 4 door options for the same base class.

 

AAAAND....the ST rules have no such reference...so it probably needs to be an apendix list of 4-door cars that are 2-doors in the eyes of the rules or whatever...

 

I wont argue with your point that it does not need it....

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kbrew8991

You could really stir up some crap if you want to point out that some 4-door cars actually have better aero than their 2-door counterparts due to the smaller window opening since you could leave the back windows rolled up.

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RockLobster

Personally i never figured it was an aero thing (the 4-door deal) i always just assumed it was for lower body rigidity (which is not necessarily the case with a roll cage and/or smaller actual door openings, being there is a substantial B-pillar enforcement).

 

I dunno, at face value i never really fully understood the intent of the rule, but w/e...

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trigger

personally I would just LSX the RX8. same power from an LS6 and flat TQ. and you can do all your sessions, vice fiddling with a broken rotary in the pits.

 

also 2851lbs is a lot of weight for 275's. considering the C5 mafia is on 315s or 335's with only a few hundred more pounds, and the turbo or V8 miatas are on the same 275's and a few hundred pounds less.

 

I like the boost bleed idea though. tune for a flat power curve. 350HP at every RPM. DAGUM. the rally cars do this dont they?

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kbrew8991

Oh how quickly we forget the TTA Corvette guys on 275s, then 255s, then 245s and ever the whole time going faster

 

also going to pistons in that car you lose the credit for the rotary... they've been out for long enough they can be solid if you stay disciplined and keep away from the go-fast knob.

Edited by Guest

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RockLobster

Well without the 4-door allowance the RX-8 loses it's luster for me. Id rather just use an MX-5 or FD RX-7 chassis. Smaller frontal area, better aero, etc... don't get me wrong the RX-8 is an outstanding chassis but bulkier than its smaller forbearers.

 

It's all still an uphill battle against the bowties...because greg thinks all mazdas are cheater from the factory

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