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Just picked up a virgin '00 FRC and want to get back into scca auto-x. It's been a few years since I've run as with all the mods I did to the '99 frc it was hard to be competitive in sm2. I was skimming through the 2017 rules and just looking for some clarification as things have changed, what mods can I do without a bump in class? I have a short throw shifter and run stock magnesium wheels with 200+ treadwear tires at stock ride height to start with. I would like to add a cai, ls6 intake, TI mufflers, z06 shocks/sway bars and aftermarket seats if these don't cause the class to change though not sure which modifications would.
Happy to help, started to build one, sold it to V10climber who's continued with it. Lane Borg has his car which he's used to develop his urethane bushings (I carry those) and we have worked together on setup.
Just picked up a virgin '00 FRC and want to get back into scca auto-x. It's been a few years since I've run as with all the mods I did to the '99 frc it was hard to be competitive in sm2. I was skimming through the 2017 rules and just looking for some clarification as things have changed, what mods can I do without a bump in class? I have a short throw shifter and run stock magnesium wheels with 200+ treadwear tires at stock ride height to start with. I would like to add a cai, ls6 intake, TI mufflers, z06 shocks/sway bars and aftermarket seats if these don't cause the class to change though not sure which modifications would.
Appreciate the help, Chris
completely stock the car would fall into B Street but the short throw shifter takes you out of that. In Street you can do shocks, drop in filter, catback exahust, one sway bar, and wheels that are stock width but can be +/- 1" in diameter.
The mods you listed and the ones you want to do would put you into the STU class. In STU you can run up to 11" wheels and up to 285mm tires (200+ treadwear required)
I have a short throw shifter and run stock magnesium wheels with 200+ treadwear tires at stock ride height to start with. I would like to add a cai, ls6 intake, TI mufflers, z06 shocks/sway bars and aftermarket seats if these don't cause the class to change though not sure which modifications would.
Appreciate the help, Chris
Everything you listed but the LS6 intake manifold is legal for STU. The intake bumps you to SSP (which means Hoosiers, light weight clutch/flywheel, etc. etc. etc.). STU is what I'm building my 99 FRC for, and it should be pretty fun.
To go to the limit for the class, you'll also want to change both springs (with probably different bars), offset delrin bushings, headers (have to keep cats), and as Eric mentioned, 11" wide wheels with 285mm 200tw tires.
Happy to help, started to build one, sold it to V10climber who's continued with it. Lane Borg has his car which he's used to develop his urethane bushings (I carry those) and we have worked together on setup.
If you want some of the best parts out there and straightforward advice I'd start with a call to Sam. Great place to start and build a solid competitive car.
Chuck D.
Just picked up a virgin '00 FRC and want to get back into scca auto-x. It's been a few years since I've run as with all the mods I did to the '99 frc it was hard to be competitive in sm2. I was skimming through the 2017 rules and just looking for some clarification as things have changed, what mods can I do without a bump in class? I have a short throw shifter and run stock magnesium wheels with 200+ treadwear tires at stock ride height to start with. I would like to add a cai, ls6 intake, TI mufflers, z06 shocks/sway bars and aftermarket seats if these don't cause the class to change though not sure which modifications would.
Appreciate the help, Chris
As lots of people have mentioned you currently have a BS legal car if you remove the short shifter.
As far as the mods you want to do the z06 shocks, TI mufflers, and one sway bar change would be legal in street.
The CAI, both sway bars, and aftermarket seats are legal in STU. However, some restrictions apply to the CAI and aftermarket seats so read the rules before you go buying one.
The ls6 intake is only legal in street prepared and up.
IMO a STU vette is a fantastic fun car/track car/auto-x car. If you live somewhere the roads are decent you could certainly DD it as well. I've driven mine from FL to Lincoln for SCCA Solo Nationals twice now. 1500 miles each way. It's not the cushiest place to be but it's not that bad.
Right on. LS6 intake is straight to SSP or higher, and if you want to be on 200 TW and competitive... you don't want to be there. You can do an intake up to the throttle body in STU, but you can't cut the panel covering the radiator to do it.
Basically the car is very good in both BS and STU. But STU suits your mod path better, even if it's not exact.
And yes, I can help with either class. I know the rules, I know the cars. And I have a very good record with them.
__________________
Sam Strano Strano Performance Parts www.stranoparts.com
814-849-3450
More options than any other single company out there. More parts than any other single company I know: Brakes to Safety, Wheels to Exhaust. Suspension to Air Filters: Girodisc, Hawk, Raybestos, Essex Racing/AP, Ferodo, Wilwood, Penske, Koni, Borg Motorsport, Ridetech, Viking, After Dark Speed, Hotchkis, Bilstein, KW, Forgestar, BC Forged, Forgeline, MRR Wheels and on, and on, and on it goes.
That would be a real fun car to build to the STU rules. When you get tired of STU or you can no longer resist the temptation to make 500hp just buy wider tires move to CAM-S. That's what I would have done if I had read the rules a little more before buying my Z06.
Thanks for all the info, I'll hold off on the cai, intake and seats then and run the street class...the stock shifter is garbage and car is too quiet for me.
Thanks for all the info, I'll hold off on the cai, intake and seats then and run the street class...the stock shifter is garbage and car is too quiet for me.
When you're ready call Sam for some shocks and his front bar. Slap some bridgestones on the stock wheels and have fun. And honestly... if you're just doing locals I wouldn't worry too much about running a short shifter in street class. It's not legal for the class but at a local it's likely that nobody is really going to care. Although, you'd probably be surprised at how much better the shifter gets just by switching out that horrific C5 shift ****.
Yeah, I'll hang onto the stock shifter if I really get competive as the 1-2 shift in a course really isn't a big deal if it comes down to it. I realized the rear sway bar on the '00 frc is actually the same size as the c5z, so going to only upgrade the front.
I suggest you run it in BS for a while first. The stock shifter is not that bad for autocross as with the C5 you really usually only need to worry about the 1-2 shift once. Just change out the stock shift **** for a Hurst or similar. I just finished getting my 99 FRC set up for B street with Sam's help. I have only ran 1 event so far and still need to learn the car (I have only run half a season in a SN95 Mustang is FS previously) but I am very happy with how it feels. Can't wait for our 2017 autocross season to start this weekend. Get Sam to set you up with Koni SA shocks, shock bushings and his front sway bar, then set your ride height and get a good alignment and go have some fun with a car very competitive for its class.
I suggest you run it in BS for a while first. The stock shifter is not that bad for autocross as with the C5 you really usually only need to worry about the 1-2 shift once. Just change out the stock shift **** for a Hurst or similar. I just finished getting my 99 FRC set up for B street with Sam's help. I have only ran 1 event so far and still need to learn the car (I have only run half a season in a SN95 Mustang is FS previously) but I am very happy with how it feels. Can't wait for our 2017 autocross season to start this weekend. Get Sam to set you up with Koni SA shocks, shock bushings and his front sway bar, then set your ride height and get a good alignment and go have some fun with a car very competitive for its class.
I agree...call Sam. He helped me set up my 2001 black vette for B street last year and I ended up winning a very large competitive novice class for the year in the OK region and B street in NEOKLA for the year. That car was like night and day after doing what he told me, simply awesome!! Thanks Sam, and for the advice on the C6Z too!!
p.s. I used Rival S tires on F 14's
Last edited by Fast Cars & Horses; 02-10-2017 at 11:11 AM.
One more comment on the stock shift linkage... it is amazing how much better it feels just by changing out the tranny fluid with fresh GM manual transmission fluid.
Diff and trans are on my list of next fluids to change, my '99 frc is a 520rwhp NA 6.0 I built so this is a drastic difference for me and everything will be happening in slow motion comparatively.
I don't know that'll I'll need 3rd in any of the courses around here as 2nd is good for 82mph. I did mess up once when left foot braking and forgot to move my foot back over to the clutch pedal when upshifting to 2nd:-/ That does bring up a question, what class does trans or diff gearing move one to?
For Street classes tranny and gear ratios must be stock as originally equipped for your particular model. For higher prep classes check the rules. When reading the rules unless it is specifically allowed it is not legal.
02-08-2017, 12:04 AM
Looking for FRC scca class category insight...
