ESP/BSP AutoX Setup n Some Track Days
Originally Posted by ratt_finkel
SP/ Street Prepared also allows the elimination of Cats. You can also do Update/backdate. Which means if you have an 03, you can upgrade to the 05 front diff.
Or like what a lot of Domestic guys do, take a stripped down V-6 version and throw in the V-8. Read the rule book, there is ALOT you can do in SP.
Or like what a lot of Domestic guys do, take a stripped down V-6 version and throw in the V-8. Read the rule book, there is ALOT you can do in SP.
The LSD makes a HUGE difference for our power on understeer.
Originally Posted by DaWorstPlaya
The EVO has been bumped into BSP from ESP, because it dominated in ESP ....
The EVO is allowed in the following classes:
1. AS (A Stock)
2. STU (street touring unlimited)
3. BSP (B street prepared)
4. SM (Street Modified)
Everything that is allowed in a lower class is allowed in a higher class + more ...
Warrtalon: what mods you have described are for AS only ...
Power mods that are legal for BSP are what is allowed in STU + more:
1. Turbo back exhaust with cat (not 5 inches away from stock cat location).
2. Headers
3. Hoses
4. Intake
5. Intercooler
6. Fuel injectors
7. Fuel pump
8. Boost control is finally being allowed in SP category in 2006
9. Nothing inside the engine can be touched ....
There are more but I am not concerned with the SP classes ...
You can download the Solo handbook from
www.scca.org/Solo/Index.asp?IdS=003D84-DD12F70&x=050|070&~=
For suspension, it seems like the EVO that took 1st place in this years SOLO2 used Ohlins coilovers ... Alot of EVO track racers use the Ohlins and love them ....
Alignment you will want to play around with, start with the following and adjust as you see fit:
1. 3 deg -ve camber in the front
2. 1.5 deg -ve camber in the rear
3. 0 toe front and rear
4. Max castor setting the camber plates allow ...
For tires you will want some kind of R-compound tires in the SP class for eg: Kumho Victoracer, Kumho V710, Hoosier A3S05 ... etc
Wheels of any diameter, width or offset are permitted. Wheel spacer are also permitted.
The EVO is allowed in the following classes:
1. AS (A Stock)
2. STU (street touring unlimited)
3. BSP (B street prepared)
4. SM (Street Modified)
Everything that is allowed in a lower class is allowed in a higher class + more ...
Warrtalon: what mods you have described are for AS only ...
Power mods that are legal for BSP are what is allowed in STU + more:
1. Turbo back exhaust with cat (not 5 inches away from stock cat location).
2. Headers
3. Hoses
4. Intake
5. Intercooler
6. Fuel injectors
7. Fuel pump
8. Boost control is finally being allowed in SP category in 2006
9. Nothing inside the engine can be touched ....
There are more but I am not concerned with the SP classes ...
You can download the Solo handbook from
www.scca.org/Solo/Index.asp?IdS=003D84-DD12F70&x=050|070&~=
For suspension, it seems like the EVO that took 1st place in this years SOLO2 used Ohlins coilovers ... Alot of EVO track racers use the Ohlins and love them ....
Alignment you will want to play around with, start with the following and adjust as you see fit:
1. 3 deg -ve camber in the front
2. 1.5 deg -ve camber in the rear
3. 0 toe front and rear
4. Max castor setting the camber plates allow ...
For tires you will want some kind of R-compound tires in the SP class for eg: Kumho Victoracer, Kumho V710, Hoosier A3S05 ... etc
Wheels of any diameter, width or offset are permitted. Wheel spacer are also permitted.
for SP (ESP, BSP) you are allowed the following
unrestricted mods:
intake, intercooler (don't cut the bumper beam), fuel system, ignition, water injection, boost controls, exhaust. clutch and flywheel are unrestricted.
restricted mods
no changes are allowed for the turbo, wastegate. You can update/backdate the turbo only if you do a full engine swap. No cams or cam gears (yet, there is a proposal on the table to allow cam gears).
You can't change the suspension points, or replace the suspension bushings with metal replacements
No changes to the brake calipers. you can run stock replacement rotors that are slotted or drilled, but you can not change the dimensions of the rotor. Brake pads are unrestricted.
In Street touring (STU)
you can replace the exhaust, but must keep a Cat in place. As the rules apply to the EVO, it's an no brainer, just put one in where it belongs.
No intake changes, no intercooler changes, no fuel system changes, no changes to the stock boost control unit, wastegate, etc...
restricted to 245 sized tire on an 8" rim with a tread wear rating of 150 or above.
brake rotors calipers can be updated with aftermarket equivelents. Not sure about the multi-peice rotors.
You have to run the stock clutch and flywheel.
Originally Posted by chrisw
You have to run the stock clutch and flywheel.
Evolved Member
Joined: Mar 2004
Posts: 535
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From: Dallas
Originally Posted by chrisw
In Street touring (STU)
you can replace the exhaust, but must keep a Cat in place. As the rules apply to the EVO, it's an no brainer, just put one in where it belongs.
No intake changes, no intercooler changes, no fuel system changes, no changes to the stock boost control unit, wastegate, etc...
restricted to 245 sized tire on an 8" rim with a tread wear rating of 150 or above.
brake rotors calipers can be updated with aftermarket equivelents. Not sure about the multi-peice rotors.
You have to run the stock clutch and flywheel.
you can replace the exhaust, but must keep a Cat in place. As the rules apply to the EVO, it's an no brainer, just put one in where it belongs.
No intake changes, no intercooler changes, no fuel system changes, no changes to the stock boost control unit, wastegate, etc...
restricted to 245 sized tire on an 8" rim with a tread wear rating of 150 or above.
brake rotors calipers can be updated with aftermarket equivelents. Not sure about the multi-peice rotors.
You have to run the stock clutch and flywheel.
In all ST classes, the intake is free up to the throttle body, you can change fuel and ignition timing, But no BOOST control.
STU
Wheels are unlimited in size. AWD cars are limited to 245's. FWD and RWD can run up to 275's.
STX says you can use up to an 8" rim and all cars are limited to 245's.
STS and STS2 are limited to 7.5" rims and 225's.
For Exhaust, as long as the stock cat is in its factory location you can change everything else. Stock and ST classes require factory clutches and flywheels.
The rule book is online, it's all there.
www.scca.com
Last edited by ratt_finkel; Dec 21, 2005 at 01:56 PM.
Originally Posted by DaWorstPlaya
Are you sure about the stock clutch? I thought that since clutches are wear items they can be replaced with any other brand of clutch. I was under the impression this was true for AS, thus true for every higher class ...
Evolving Member
Joined: Jun 2001
Posts: 128
Likes: 0
From: SE Mass
Going to fix a few things here as far as STU rules...
Corrected:
In all ST classes, the intake is free up to the throttle body for N/A cars and up to the compressor inlet on Turbo/Supercharged cars, you can change fuel and ignition timing, But no BOOST control.
Corrected:
In STS.. you no touch cat period. Bad monkey! In STX/STU There must be at least one cat (can be hi-flow) where the entrance of this replacement cat is no further than 6" away from the exit location of the old stock cat.
What does this mean? You don't have to have it exactly where the stock cat is. You can even move it downstream more and have a high-flow cat. You can put it anywhere in the system (even 2 feet before where the old stock cat was) as long as it's no farther than 6" past the exit of where the old cat used to be.
--kC
Originally Posted by ratt_finkel
In all ST classes, the intake is free up to the throttle body, you can change fuel and ignition timing, But no BOOST control.
In all ST classes, the intake is free up to the throttle body for N/A cars and up to the compressor inlet on Turbo/Supercharged cars, you can change fuel and ignition timing, But no BOOST control.
For Exhaust, as long as the stock cat is in its factory location you can change everything else.
In STS.. you no touch cat period. Bad monkey! In STX/STU There must be at least one cat (can be hi-flow) where the entrance of this replacement cat is no further than 6" away from the exit location of the old stock cat.
What does this mean? You don't have to have it exactly where the stock cat is. You can even move it downstream more and have a high-flow cat. You can put it anywhere in the system (even 2 feet before where the old stock cat was) as long as it's no farther than 6" past the exit of where the old cat used to be.
--kC
Evolving Member
Joined: Jun 2001
Posts: 128
Likes: 0
From: SE Mass
Originally Posted by DaWorstPlaya
Are you sure about the stock clutch? I thought that since clutches are wear items they can be replaced with any other brand of clutch. I was under the impression this was true for AS, thus true for every higher class ...
Originally Posted by DaWorstPlaya
For suspension, it seems like the EVO that took 1st place in this years SOLO2 used Ohlins coilovers ...
Works front camber plates
Works rear upper mounts
Custom-valved Ohlins dampeners
Eibach springs
Buschur rear swaybar
Works urethane bushings
DC Sports Titanium rear strutbar
Originally Posted by ratt_finkel
Actually, you seem to be quoting some STX rules and stock rules.
In all ST classes, the intake is free up to the throttle body, you can change fuel and ignition timing, But no BOOST control.
STU
Wheels are unlimited in size. AWD cars are limited to 245's. FWD and RWD can run up to 275's.
STX says you can use up to an 8" rim and all cars are limited to 245's.
STS and STS2 are limited to 7.5" rims and 225's.
For Exhaust, as long as the stock cat is in its factory location you can change everything else. Stock and ST classes require factory clutches and flywheels.
The rule book is online, it's all there.
www.scca.com
In all ST classes, the intake is free up to the throttle body, you can change fuel and ignition timing, But no BOOST control.
STU
Wheels are unlimited in size. AWD cars are limited to 245's. FWD and RWD can run up to 275's.
STX says you can use up to an 8" rim and all cars are limited to 245's.
STS and STS2 are limited to 7.5" rims and 225's.
For Exhaust, as long as the stock cat is in its factory location you can change everything else. Stock and ST classes require factory clutches and flywheels.
The rule book is online, it's all there.
www.scca.com
Originally Posted by atlvalet
So is a lower intercooler pipe allowed for BSP?
And is removing the stock undertray allowed?
And is removing the stock undertray allowed?
yes, the intercooler system is totally unrestricted.
I think you can remove the undertray, but think of what would happen if a cone were to get stuck in there at around 40-50 mph... It could literally rip the oil filter off the engine.
Yes, but I have a Nisei unit which would require me to trim the stock undertray, which if I understand things correctly, isn't allowed. Correct? Thanks though, didn't think about the cone
What about coatings like SwainTech or JetHot?
I'm getting pretty excited, because it looks like my car will be able to run BSP.
What about coatings like SwainTech or JetHot?
I'm getting pretty excited, because it looks like my car will be able to run BSP.
The intercooler is unrestricted in BSP, but I am not sure about the piping. You be the judge. Here is the verbage out of the 2006 rules:
3. As utilized only on engines originally equipped with forced
induction, induction charge heat exchangers (known as “intercoolers”
or “charge air coolers (CACs)”) are unrestricted in
size and configuration. Air-to-air CACs and radiators for airto-
liquid CACs must be cooled only by the atmosphere, except
for standard parts. Body panels, fascias, or structural
members may not be cut or altered to facilitate CAC installation.
3. As utilized only on engines originally equipped with forced
induction, induction charge heat exchangers (known as “intercoolers”
or “charge air coolers (CACs)”) are unrestricted in
size and configuration. Air-to-air CACs and radiators for airto-
liquid CACs must be cooled only by the atmosphere, except
for standard parts. Body panels, fascias, or structural
members may not be cut or altered to facilitate CAC installation.
Atlvalet, I highly doubt anyone will care about the plastic undertray. However, I highly doubt we can even be close to competitive in BSP without a fully-dedicated, perfectly-setup suspension and wheel/tire combo.
Last year's ESP top 3 at Nationals were all Evos, but they would have finished 7th, 8th, and 9th in BSP.
Last year's ESP top 3 at Nationals were all Evos, but they would have finished 7th, 8th, and 9th in BSP.