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View Full Version : Is CP right for the RX7??


JHixon
02-26-2006, 07:41 AM
We raced our Spec7 this weekend in CP. That was my best guess from perusing the rules and lists and books and .... Is this the right class?

The car is an 84 RX7, with 12a motor. It is prepped for Spec7 club racing according to the new rules. The changes to the car are as follows.

emissions are completely stripped
Racing Beat headers
straight exhaust
upgraded springs, shocks, struts, sway bars
interior almost stripped and bolt in roll cage, dual racing seats and harnesses
tires are Toyo Proxes RA1 205/60R13

carb and intake are pure stock

That's about it.

Second issue, if I were to change the intake and carb, what class?

Donnie
02-26-2006, 12:25 PM
at the peru tour last year there was a NA rx7 same body style as yours running FP

it is also listed on page 193 in the 06 rule book under the FP class

nowhere in CP is an rx7 listed

there is a listing in BP for the turbo on page 177

so turbo = BP
NA = FP

as for the carb and intake there might be a weight penalty depending on what you do prepared rules can get confusing sometimes, id say start trying to figure out the prepared rules and go from there

Donnie

JHixon
02-26-2006, 04:47 PM
Thanks, Donnie. I actually registered the car FP, but put CP on it... DUH.
As near as I can tell, the only thing keeping us out of CSP is exhaust and tires.

I suppose straight pipes don't qualify as "quiet", but what does? I don't see any qualifications for that term.

Toyo Proxes RA1, I don't suppose are stock tires. Are they? How does one go about determining "stock".

Spec7 was easy compared to this, everything is "spec".

Any advantage of CSP over FP?

kwenzel
02-26-2006, 05:25 PM
Thanks, Donnie. I actually registered the car FP, but put CP on it... DUH.
As near as I can tell, the only thing keeping us out of CSP is exhaust and tires.

Any advantage of CSP over FP?
Exhaust and tires definitely aren't keeping you out of CSP - those Toyos are DOT rated, so you can use them, and exhaust is pretty much free in SP (your main worry about noise is running at a venue like World Arena where there's a local restriction). The interior is another thing altogether, though - SP rules don't allow you to remove it like the new Spec7 rules do. I could have sworn that there was a rule allowing Spec7s to compete in some SP class, just like the rule allowing Spec Miatas to run in DSP, but I can't find it at the moment.

JHixon
02-26-2006, 08:32 PM
The hardest thing in the rules is to keep in mind that if it isn't specifically allowed, it isn't allowed. I missed the stripped interior, and ours is definitely stripped.

Hopefully someone can come up with the exception, if there is one, that allows us to race in CSP. If not, then I guess it's FP for us.

With the current crisis in club racing here in Colorado, we are switching to Solo. It's better for us as a family anyway.

I am already registered for Winter #4 and would like to get the class and the car straightened out well before then.

#3 was fun.

Donnie
02-26-2006, 10:15 PM
the only way it could transfer to a SP class if there was previsions for it would be if it was EXACTLY the same prep as if it were for a spec 7 race tires and all. and you as a driver would need to have a copy of the latest rule book to prove it

JHixon
02-27-2006, 06:06 AM
It is and I have all the documentation.

A Miller Brother
02-27-2006, 07:17 PM
Even though it is not recognized at the national level would the powers that be i.e. Chiefs allow S7 legal cars to run in CSP? they're marginally lighter than a CSP RX-7 but with less power and less tire size. I wouldn't think this would create any potential overdogs in the class. If not and to be extremely conservative we could regionally allow it in DSP where the faster spec Miatas are Nationally legal. Of course if we don't wan't to set precedent for creating more regional only rules forget the whole thing.

Just trying to muddy the waters a bit. Of course if a S7 driver were motivated enough to petition the National Office to consider classing S7 cars in CSP it could happen at that level as well, might take a while though, particularly if different regions have different S7 definitions.

Barring special classification allowances it looks like FP - Welcome to Prepared!

Donnie
02-27-2006, 08:07 PM
given the recent lack of track situation around here it might almost be more fun to start an FP project IMO the car is more than halfway there just my 2 pennies

JHixon
02-28-2006, 06:12 AM
I am seriously considering going to a Weber carb setup. The stock carb is so terribly sensitive to turning. That's why the stupid thing was so quiet in the left turns. It wasn't even running. Right turns were great. (No NASCAR for this baby)

With all that, I suppose FP would be more appropriate. Heck, we would have won our class.