Rx7cat16

3 liters rotary displacement:-)

SleepR1

RedrotorR1,

Ahh...thanks for the clarification, ASP it is!

whitet777

Any chance the 3rd Gen could be bumped down to AS so that we can compete? National this year had all Z06's!

Rx7cat16

The new FasTrack just came out, the FD stays in SS, but the BMW's and the Boxster S moved down to AS...can't believe they'd split the Boxster S and the Rx7...they're very comparable...

See it here
http://www.scca.org/news/fastrack/02-12.pdf

Josh Blair

What prepared class would a turbo FC be in? I'm guessing it would we A prepared since we'd be in a street prepared.

enuttage

Prolly old news, but I can confirm this. I ran against the both of them (as well as a damn fine driver in Scott Bowman) in SM2 at the last spokes event here in Austin.

Erik mentioned he was starting the prep work with Tito to do the conversion.

-E

DamonB

I don't know Scott but watched him run in Houston at either the National Tour or the Houston Divisional. I certainly envy his driving.

787B

could the NA ever beat the MR2 in e-stock?

Samps

Anyone wanna tell me what class I would end up in? I'm guessing CSP if the info I've read in this thread is correct.

My motor is untouched from the factory.

SleepR1

What class will I be in 2003?

-KDR Performance ported motor
-Apex Power FC with 11 psi boost control
-Japan spec twins
-Greddy 2-row FMIC and Apex dual intakes

Someone said I can be in SM2, or will I have my *** kicked around in A Prepared?

redrotorR1

Porting puts you into either SM2 or Modified (BM, I believe?). We've had the PFC discussion about classing ... currently, that's a definite Prepared and beyond modifications (dammit). The update/backdate ruling (for your J-spec stuff) is somewhat unclear for Street Prepared, but either way, the streetport eliminates that option for you anyway. Altogether, you should be kosher for SM2. Course, you could run Modified and try to keep up with cars that are 400-600 lbs lighter than you.

Sleep, you might have some problems keeping boost to 11psi with both the RS/RZ turbos AND the streetport. My RZ turbos regularly hit 12-13 psi (60-80F weather) with my reman engine ... and I've still got the stock airbox on right now. (Sorry, off-topic.)

BTW, the latest FasTrack has some new updates for SM2.

http://www.scca.org/news/fastrack/03-02.pdf

All you wealthy-beyond-our-imagination folks can rejoice ... rotary displacement is now up to 3.0L!!!!! Anybody want to sell me a 20B for CHEAP?

redrotorR1

I'm not an expert, but everything looks okay except for the Mazdaspeed strut brace.

Strut bars are permitted with all types of suspension. Strut bars may be mounted only transversely across the car from upper right to upper left suspension mounting point and from lower right to lower left suspension mounting point. No other configuration is permitted. Additional holes may be drilled for mounting bolts. Only bolt-on attachment is permitted.

SleepR1

I've decided to put the brakes on my Rx7 Build up project (to keep it under budget). This means, I will retain the stock IC and airbox with K&N filter and Racing Beat Intake Duct. My exhaust mods will remain--dp/high-flow cat/RB dual tip CB.

I was on the phone with Dave Barninger (KDR Performance Inc) about my Power FC base map mods with a ported motor, J-spec RS/RZ twins, and 11 psi; he said all would be fine without additional fuel mods (1300-cc secondary injectors and Nippondenso Comp Fuel Pump).

He'd change the Power FC maps to add more fuel during the 4300 rpm switchover to deal with the spiking that occurs there; and he'd retard the timing to compensate for the increased crank angles of the enlarged intake/exhaust ports.

I imagine that 11 psi boost control is more like an average boost with the Apex Power FC? In reality, your boost gauge probably jumps around between 8 and 13 psi?

I plan to sell the car next fall, so the future owner will need to add a larger IC, better intake, and adjust the Power FC AFRs to deal with denser aircharge densities; and add 1300-cc secondary injectors and Nippondenso Comp fuel pump.

In a nutshell, I can run in Street Mod 2 until I sell "Kim", is that correct?? (Named the car after Kim Barninger, she's the one porting and reassembling the motor )

redrotorR1

Yup. You should be a-okay in SM2.

As far as the boost reading, it's an Autometer gauge ... which I've read complaints about. But, no, it doesn't really jump around. It only fluctutates when you're not full throttle. However, the PFC is reading peak boost at 0.88kg; which is 12.936psi. So, for now, I'll believe the reading .. until proven otherwise. Like I've said in previous threads, these RZ turbos are awesome.

Selling the car?!?!?! You plan on getting married or something? Aye-yi-yi ........

SleepR1

What's the conversion factor between psi and Bar?

I can't help myself. I'm going Greddy FMIC, intake, fuel system upgrade in addition to ported motor. With those additional mods, will I still be in SM2?

Is SM2 a national class yet?

I wouldn't sell the car anytime soon AFTER I finish the project this month. I want to enjoy the new mods for awhile

Dude, I've been married 14 years +

redrotorR1

1 Bar = 14.7 psi
1 Bar = 1 kg/cm2 (approximately ... a few decimal points off)

The PFC displays boost readings in kg/cm2, so you're always having to calculate boost in your head.

For quick SM/SM2 class reference, use this link:

http://mouton.best.vwh.net/sccasolo/..._modified.html

To paraphrase ... SM2 allows all Street Prepared and Prepared modifications EXCEPT 1) interior must be retained (up to the backseat); 2) all road going components must be retained (i.e. lights, wipers, heater, rear hatch, windows, etc.); and 3) displacement and weight restrictions. See my previous link to the lastest FasTrack for the new restrictions.

SM2 was a supplemental class last year. It is growing in popularity, so it should become a nationally recognized class soon. According to the last FasTrack, the SoloII Street Modified category is still under discussion.



Married for 14 years .... sucker. (Congrats.)

SleepR1

Oh great, now I'll have to bring pencil/paper to convert Barr to psi (multiplication factor of 14.7) I guess my boost control will be set between 0.75 and 0.80 Kg/cm^2 (11 to 11.75 psi) ?

Thanks for the link...

Yeah I keep telling my wife, she's a "sucker"

Happy New Year!

MaTT_FoULk

Can you run victoracers in SM2?

redrotorR1

You can run any non-racing slick tire in any of the classes EXCEPT those that are restricted to street tires only (STS, any specialty classes offered locally ... ala Novice or Tire class). So, yes, you can run V700's in SM2 ... or whatever R-compound tire you can get your hands on .... provided there is a measurable tread depth on them.

GtoRx7

iTrader: (5)

.

Rx-7goblin

I didn't find anything in the rulebook that would toss a streetported s4 NA into prepared category. The only text on allowable porting that I could find was under Street Prepared and states: "Intake and exhaust ports and manifold openings may be matched provided no change is made more than one inch from the port/manifold interface."
I know that this is not exactly streetporting etc. but I was just wondering what statement is it exactly in the rulebook that dictates streetporting moves you into prepared?

thanks,

Rob

DamonB

If the rules don't say you can, then you can't. The rule you quote is meant to allow the manifolds to be port matched to the heads. If I remember correctly Street Prepared allows no internal engine mods at all, which a streetported rotary certainly would be.

eddierotary

iTrader: (7)

the last time i went to auto X they put me in a street modified 2 class(SM2), rules i dont know but because my car is a 1gen with a custom made turbo they put me on that

red 7

would a 3rd gen with these mods be in AP or SM2

streetported motor
single turbo
boost controller
Power FC
fuel inj and pump
FMIC
struts, coilovers, and F&R swaybars with braces
kaaz diff, 4.33
and much more...

redrotorR1

SM2. Or EM ... if you think you're fast enough to compete there.