Solo II/AutoX/Pro Solo/ National Tour? What Mods?

[DJWorm]

What mods would you do/allowed to do for AutoX? Why? What Class? Priority?

[Jose Gonzalez]

I am not sure If I am addressing your question.

Stock is pretty simple and I will list with #1 as priority according to me.

The first three I feel are most important.
1. DOT legal race tires.
2. Shocks
3. Alignment
4. Front sway bar( I think )
5. Cat back exhaust
6. Air filter
7. Roll bar and harness
8. Different wheels with same dimensions. Offset can be + or - a small amount ( in the scca rule book ).

Can't think of any thing else. I really recommend that any one making a change verify it with the rule book.

Any other change can get you protested. I have seen cars protested for having a different shifter nob.

Other illegal mod. that you will find and are hard to detect.
1. Comp. program
2. Gut cats
3. Head work
4. Race fuel

At the pro solo at Ft. myers, a piece of a cat fell out the back of one of the SS cars.

Street prepared, prepared and Mod., have too may mods to mention. Got to go to the rule book.

[pmontelo]

Originally posted by Jose Gonzalez
At the pro solo at Ft. myers, a piece of a cat fell out the back of one of the SS cars.

Say it ain't so (hehe). My problem is that I don't need more power, I need to learn how to drive...

I am running in SS street tire right now.

1. After this weekend I will be getting an alignment, my very first mod! (Around 1.9-2.0 neg camber up front, max in back).

2. I've got the Hoosier rubber ready, but haven't used them yet. I will put them on after I have driven the new alignment on street rubber first (next event). (being anal so I know how each change effects the car).

I've got to say, I'm impressed with the wear on the F1SCs after the first event. Much better wear than the Dunlop SP8000s on my C4 (I need more camber there too).

[Jose Gonzalez]

I would think that you will see a limited handling increase with the alignment on street tires. But can't say for sure, because I have not done that test. You will see huge difference when you combine the Hoosiers with the alignment.

[Z06Tig]

Well, our car seems to be fairly competive (Super Stock)

Here's the list of mods;

1. Koni double adjustable 28 series shocks, (custom valving)
2. Alignment
3. Car lowered and corner weighted
4. Hoosier A3S03s for dry, Kumho's Ecsta R compounds for wet
5. CCW, Circle Racing and Kodiak wheels (heaviest to lightest)
6. Borla XR-1 mufflers
7. K&N Filter
8. Thermostat
9. Lap belt brackets


And just as important...lots of seat time

Erik was considering changing the front bar, but at the moment feels it's not necessary.

[VettesRule]

Originally posted by DJWorm
What mods would you do/allowed to do for AutoX?

Here are the big changes allowed in SS (the class to be in!)

Tires,
Wheels (same size)
Cat back exhaust,
Replaceable items, plugs, wires, oils,
no more than double adjustable shocks,
air filter element,
alignment within factory adjustable range (no cutting of bushings,
bolt in cage or harness bar and racing belts,
thermostat,
front sway bar,


Why?

Class is meant to represent what is coming from the factory with minor changes.

Priority?

1. Tires,
2. Shocks,
3. alignment,
10. everything else.

[DJWorm]

I'll List mine in Prioritized order:

1. Competition Alignment including corner weighted and lowered
2. Hoosier A3S03 Tires on CCW Wheels
3. KFP Race Pads
4. AP 600 Brake Fluid
5.Penske/Mallett Double Adjustable Shocks, custom valved with Remote Reservoirs
6. Corsa Titanium Race Exhaust
7. K&N Air Filter
8. 178 deg TStat, Redline Water Wetter, MotorMax Coolant Additive
9. BK Harness Bar
10. Simpson Belts
11. Simpson Super Bandit II Kevlar Helmet with Nomex liner, Simpson Driving Gloves
12. Sunoco GT100 Race Gas
13. Beru Silverstone Silver Tip Racing Plugs
14. Magnecor KV85 Racing Plug Wires
15. General 2.5# Halon Hand Held Fire Extinguisher
16. Safecraft 20# Halon 3 head Fire Suppression System
17. Goodyear ZR-S "S" Compound Rain Tires on Fikse Wheels
18. Pro Blend Race Tire Cleaner
19. Wax and RainX

Non prioritized but just as important as #1
- Support of my Family
- Good Tow Vehicle
- Behrent's Aluminum Air Tank
- DeWalt Portable Power Tools
- An excellent Z06 Corvette as a platform.
- Support of Chuck Mallett and Mallett Cars, Jim Browning Sr. & Jr. and Corsa performance, Sir Frank Williams and Williams GP Engineering, Dave Hallman Chevrolet, the Supporting Vendors of this web site, this web site, all my friends in Misery bar SCCA Region 104

[Streldoc]

The valving that Mallet runs on their Penske's may not be the best settup for autocross. Su Brude and Stan Whitney initially had Mallet Penskes, and had them revavled by Guy Enkeny (Years of autocrossing settup knowledge), and thought it was an improvement. The other benefit is that most of the Z06 in autocross that run Penskes, have Ankeny valving, thereby allowing comparison. But, for all I know the valving might be the same.
Just my 2 cents.

PS. How many tenths is the nomex and dual fire extinguishers worth?

[DJWorm]

Well it wasn't really a mistake but it was my mistake. I wanted my cake and to eat it to. You just can't do it, it's not practicle. What I mean is, I wanted an AutoX car and a Solo I track car. You are correct the Penske/Mallett's are basically set up for the track and not AutoX. And Guy does a great job on his valving. I have thought about sending the units to Guy to have them revalved and that might be in the cards for next Winter. I have managed to get around the non AutoX valving by having the double adjustables. I can tune the car for a particular track. I am going to have two codrivers, one in SS and one in ASP this coming weekend to help me sort it further. We'll see what the times tell.

The Nomex Liner actually adds a couple tenths by keeping the brain box cooler. It acts similar to GoreTex but not quite. The FE and Fire Suppression are for Track events. I take them out for AutoX. That 20# Halon actually weighs 30#'s; too heavy for AutoX. Of course, if I could aim the noozles to the rear and time it with the lights it might help in the Final Challenge run !!!!!

[ROSSO Z]

FWIW,

I believe the front sway bar upgrade is not allowed, but changing the rear bar is OK...

I am not an expert................, but remember talking to several Z owners about their setups.

[Z06Tig]

In SCCA Stock classes, the front sway bar is an allowable upgrade, the rear bar is not.

[magnetic1]

Why would you want to change the front swaybar? unless changing smaller... these cars have a tendancy to push as it is...

[ROSSO Z]

OOPS! Got it backwards. Thanks.

[Jose Gonzalez]

Hey, I learned something new. I did not know the thermostat could be changed.

DJWorn, are sure the sunoco 100 race fuel is legal

[DJWorm]

Yes the Sunoco GT100, 100 octane unleaded fuel IS legal. It is sold at selected Stations from the Pump and is labelled as "Federally approved for use on highways." It meets the SCCA criteria. Howard has said so. I have email confirmation.

The Sunoco GT Plus, 104 octane unleaded, IS NOT legal in SCCA Stock Solo II and is NOT federally approved for Highway use and it is not legal to dispense it into a licensed vehicle for street use.