Need Help for RACE CAR
 

Hi every one firts of all sorry for my english im french.

Ok i need help for built Mazda RX8 in RACE CAR for serious AutoX.

First one my car is stripped i take off all my interior except dash but the rest is all gone.

I have Roll Cage: Autopower 6 point+net i have seat Kirkey 53 series full containment laybac and 6 point harness and i have Bell helmet and hans device security is ok.

Handling
Suspension i have coil over Tein ultimate spec circuit master super racing whit AutoExE 4 point strut bar front and rear and under bracing whit AP sway bar whit end links i need to know is it beeter if i put JIC rear camber arms or not.

Brake i need help here
I have nothing right now but i look for 2 pieces rotor very good brand racing application and racing pads ,SS lines and high temp oil.I will stay whit my OEM caliper because i look for 17 inch weels.Please if you have comments on good brand name brake parts may proof in racing please tell me about it.

Engine
Under the hood hp is ok cooling is ok too but i need help for best combo racing flyweel and clutch kit.

Transmision
I have OEM 6 speed i know is ok for 280-300 hp but for racing the OEM one is it ok because in racing were are shift and downsift alot is it possible too change gears for more stonger and i see here in forum some poeple talk 4.77 gear is it good for racing or only for street.

Exterior
I will put all Carbon parts if i can for lightweight.

I need help on Weels i will go whit 17 inch for lightweight and for tire because in 18 inch alot of tire compagnies do not built slick tire in this size thats why i will go on 17 inch.Do you have brand on good light and strong weels for racing.

For finish if i mist some kind of stuffs please tell me.

Thx Kev

Serious AutoX...What class are you competiting in...SM? Also where do you live.

As for the brakes, I recommend Racing Brake 2-piece rotors, and Cobalt XR-2/GTS pads combo.

For the trans, you could always upgrade to the new 09 trans

Wheels, the lighter the better, how big a tire are you wanting to run? 17's are good, there are a lot of guys here running 17's for race. I also recommend Hoosier KONI tires.

Same as Grand am cup but in Canada

Thx I8U Racing Brake is in my list.
For Trans what do i need for upgrade? or 09 complet trans??
I dont know for the size i will runing witch size you recommend me??

The complete 09 trans...the KONI Challenge 8's run 17x9 with 245/40/17's. A few autoX guys here are running 285/30/18's on 18x9.5 Enkei RPF1's

rx8 se, you should post up some pictures of your car, i bet it looks badass

You recommend hoosier koni tires for autox? I would consider something much softer.

This is not directed at I8U, just a question: why do people get the bigger brakes when they get the 2 piece? Seems the advantage comes from losing some weight, not fade resistance. The stock sport size rotors seem like they will never fade to me.

Hoosier Koni's are good...R6's are nice too, hell even Toyo R888s would be nice. My point was a good r compound.

Also, I never said anything about getting bigger brakes, I said look at the 2 piece rotors from RB, their rotors are the same size as the stock sport rotors on our car, 12.7".

My car is not finish yet but when i complete i will post picture dont worry.

2 piece brake have some advantage firts light second heat disipation and last one in AutoX you need alot of brake = after couple of race your rotor is dead and wjit 2 piece rotor yon dont need too replace all rotor just only ring you re use you hat and you save money.

As I understand it, the companies that use larger diameter rotors have to due to the amount of drilled holes they put in them to keep them from cracking prematurely. I have gotten brake fade during a couple autoX events and full course HPDE's using stock rotors, Cobalt pads, and ATE blue fluid.


What class are you running and with who? Weird your class will allow 2-piece rotors as long as they are blanks vs having a slotted one. Doesn't make sense.

When I do my next fluid flush I gonna re-fill with Motul 600. I looking at upgrading to some dimpled/slotted 1-piece rotors if the Racing Brake open slotted 1-piece never make it to market.

I run in STU mostly, in a local sports car club. They stay very close to SCCA rules and classification...there really isn't a lot of competition in STU/street tire. I ran B-stock for a couple events before they realized my tire size was way more than allowed. They never took my wins away from those events though. I really want to get this thing paid off so I can turn it into a full-on track car and finally buy the M3 or M6 I've been wanting.

wow,

i find that very odd. which cobalt pads are you running? have not had that issue at all.. did a 40 min session last month. not an issue.. what tires were you running?

beers :beer:

Any chance you'll be going to the NCAC in Greensboro this October? It would be nice to have another RX8 in STU with me :)

Same here, I've never had any fade on track with the Cobalt GTS pads. I'm switching to the XR2/XR5 combo for my next track event though.

17x9 RPF1's are your best bang for the buck lightweight wheel at under 15.9lbs. It's what I rock at the track.

Running XR2/GTS combo, I did back to back sessions with an set of old KONI's. Only happened once. After the session we took infrared reading of the fluid in the reservoir and it was just under 360F. Once I got back out for my third session it was fine.

When in October? I'll be deep into LE training and getting things setup for the Grand-Am event at VIR.

^October 10-11 at the Greensboro Coliseum.

^Send me a pm with the info and I'll see what I can do. I really would like to go.

going to guess old fluid? btw, i have a bunch of super blue if you need some..

and i am in the same boat as peppy.. i have the new gsr pads i think they call them that now.. they are the same as the gts i think. i do know they replaced them.

no issues at all. but i am not on r compounds! interested in a private track day near birmingham? send me a pm if you are.

and peppy, you know what that event is. you should be on the list this time..

beers :beer: