IMSTAR Sport Compact Summer Nationals & Swap Meet (Bring all your used parts to sell!)
Sunday, July 26, 2009

IMSTAR Sport Compact Fall Nationals
Sunday, September 13, 2009


All of this info will be updated shortly on http://www.mirdrag.com/imstar But I didnt want everyone to have to wait on the web guy to make plans. These rules will also be in affect for the World Cup Finals on Saturday and Sunday November 7-8, 2009. Also, on Friday night, May 29, 2009 we will run a special IMSTAR Wild Street class (only Quick 8 though), but class will still pay $1,000 to win, $400 runner-up, and $100 to semis with only a $40 entry fee.


**STREET FIGHTER**
(9.99 and quicker cars only)

Race Format: Quick 16 field, Pro ladder, Heads-up, Pro tree, No breakout
Body: 1987 & newer vehicles only (VW models are permitted to run any year vehicle). Aftermarket body parts are limited to hoods, trunks lids, sunroofs, wings, ground effects, bumpers, and front fenders only. One-piece front ends are not permitted. All other body parts must be stock. No body parts may be removed during competition.
Chassis: Full stock chassis is required. Cutting or drilling for lightening purposes of the chassis is not permitted.
Suspension: Stock type suspension cars only. Aftermarket direct replacement A-arms, struts, and shocks are allowed. Wheelie bars and ladder bars are prohibited.
Street Equipment: Lexan windows are permitted. Interior is not required.
Exhaust: Muffler(s) are required unless vehicle is turbocharged.
Electronics: Two-steps, aftermarket ECU’s, and engine management systems are allowed.
Driveline: Cars originally equipped with independent rear suspension must remain independent rear suspension (IRS conversions to straight rear axle are prohibited). Aftermarket axles, gear ratios, spools, and positive traction differentials are permitted.
Turbocharger: Turbochargers are measured at the inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing.
Nitrous Oxide: On cars that are not permitted to use nitrous oxide, all nitrous bottles and nitrous/fuel solenoids must be removed off car entirely.
Transmission: Any style automatic transmission permitted. Manual transmission cars are permitted to use aftermarket stock-style clutch-assisted transmissions (no sequential transmissions).
Fuel: Gasoline only permitted. Aftermarket fuel cells are permitted.
Tires (FWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 28.0” x 11.5”.
Tires (RWD cars): Any size DOT radial tire permitted (315/60/15 radials prohibited). Maximum size Slick or DOT Slick is 28.0” x 11.5”.
Tires (AWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 26.0” x 11.5”.

2-rotor cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 91mm single or 70mm twins. Any type intercooler permitted. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 88mm single or 70mm twins. Any type intercooler permitted. May combine with Nitrous.
·Minimum Weight: None

4-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 91mm single. Any type intercooler permitted. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 88mm single. Any type intercooler permitted. May combine with Nitrous.
·Minimum Weight: None

6-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 91mm single or 70mm twins. Any type intercooler permitted. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to 88mm single or 70mm twins. Any type intercooler permitted. May combine with Nitrous.
·Minimum Weight: None



**WILD STREET**
(10.99 and quicker cars only)

Race Format: Quick 16 field, Pro ladder, Heads-up, Pro tree, No breakout
Body: 1987 & newer vehicles only (VW models are permitted to run any year vehicle). Aftermarket body parts are limited to hoods, trunks lids, sunroofs, wings, ground effects, bumpers, and front fenders only. One-piece front ends are not permitted. All other body parts must be stock. All windows must be functional. No body parts may be removed during competition.
Chassis: Full stock chassis is required. Cutting or drilling for lightening purposes of the chassis is not permitted.
Suspension: Stock type suspension cars only. Aftermarket direct replacement A-arms, struts, and shocks are allowed. Wheelie bars and ladder bars are prohibited.
Street Equipment: All windows must be OEM glass. Headlights and brake lights are required (one headlight may be removed for air induction). Stock dashboard and full interior from front seats forward is required (both front seats are required). Aftermarket interior and seats are permitted.
Exhaust: Muffler(s) are required unless vehicle is turbocharged.
Electronics: Two-steps, aftermarket ECU’s, and engine management systems are allowed.
Driveline: Cars originally equipped with independent rear suspension must remain independent rear suspension (IRS conversions to straight rear axle are prohibited). Aftermarket axles, gear ratios, spools, and positive traction differentials are permitted.
Turbocharger: Turbochargers are measured at the inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing.
Nitrous Oxide: On cars that are not permitted to use nitrous oxide, all nitrous bottles and nitrous/fuel solenoids must be removed off car entirely.
Transmission: OEM transmission from the same manufacturer as car is required. RWD cars with manual transmission are permitted to use aftermarket stock-style clutch-assisted transmissions (no sequential transmissions).
Fuel: Gasoline only permitted. Aftermarket fuel cells are permitted.
Tires (FWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 26.0” x 11.5”.
Tires (RWD cars): Any size DOT radial tire permitted (315/60/15 radials prohibited). Maximum size Slick or DOT Slick is 28.0” x 11.5”.
Tires (AWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 26.0” x 11.5”.

2-rotor cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 80mm single or 60mm twins. Any type intercooler permitted. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 76mm single or 58mm twins. Any type intercooler permitted. May combine with Nitrous.
·Minimum Weight: None

4-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 72mm single. Any type intercooler permitted. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 72mm single. Any type intercooler permitted. Turbocharger cannot be combined with nitrous unless vehicle is equipped with OEM automatic transmission for engine used.
·Minimum Weight: None

6-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 80mm single or 60mm twins. Air to air intercoolers only. May combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 76mm single or 58mm twins. Air to air intercoolers only. May combine with Nitrous. (Nitrous prohibited on Domestic V6).
·Minimum Weight: None


**TRUE STREET**
(11.99 and quicker cars only)

Race Format: Quick 16 field, Pro ladder, Heads-up, Pro tree, No breakout
Body: 1987 & newer vehicles only. Aftermarket body parts are limited to hoods, trunks lids, sunroofs, wings, ground effects, bumpers, and front fenders only. One-piece front ends are not permitted. All other body parts must be stock. All windows must be functional. No body parts may be removed during competition.
Chassis: Full stock chassis is required. Cutting or drilling for lightening purposes of the chassis is not permitted.
Suspension: Stock type suspension cars only. Aftermarket direct replacement A-arms, struts, and shocks are allowed. Wheelie bars and ladder bars are prohibited.
Street Equipment: All windows must be OEM glass. Headlights and brake lights are required (one headlight may be removed for air induction). Stock dashboard and full interior from front seats forward is required (both front seats are required). Aftermarket interior and seats are permitted.
Exhaust: Muffler(s) are required unless vehicle is turbocharged.
Electronics: Two-steps, aftermarket ECU’s, and engine management systems are allowed.
Driveline: Cars originally equipped with independent rear suspension must remain independent rear suspension (IRS conversions to straight rear axle are prohibited). Aftermarket axles, gear ratios, spools, and positive traction differentials are permitted.
Turbocharger: Turbochargers are measured at the inducer wheel diameter at the point where the leading edge of the compressor wheel meets the inlet housing.
Nitrous Oxide: On cars that are not permitted to use nitrous oxide, all nitrous bottles and nitrous/fuel solenoids must be removed off car entirely.
Transmission: OEM transmission from the same manufacturer as car is required. RWD cars with manual transmission are permitted to use aftermarket stock-style clutch-assisted transmissions (no sequential transmissions).
Fuel: Gasoline only permitted. Aftermarket fuel cells are permitted.
Tires (FWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 25.0” x 9”.
Tires (RWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 26.0” x 11.5”.
Tires (AWD cars): Any size DOT radial tires only are permitted.

2-rotor cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 72mm single or 58mm twins. Air to air intercoolers only. Cannot combine with Nitrous.
·Turbocharger (auto transmission): Limited to 72mm single or 58mm twins. Air to air intercoolers only. Cannot combine with Nitrous.
·Minimum Weight: None

4-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 67mm single. Air to air intercoolers only. Cannot combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 64mm single. Air to air intercoolers only. Cannot combine with Nitrous.
·Minimum Weight: None

6-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Induction: Engine must be EFI. Any style intake is permitted.
·Turbocharger (manual transmission): Limited to 72mm single or 58mm twins. Air to air intercoolers only. Cannot combine with Nitrous.
·Turbocharger (auto transmission): Limited to a 67mm single or 56mm twins. Air to air intercoolers only. Cannot combine with Nitrous.
·Minimum Weight: None


**ALL-MOTOR STREET**
(12.99 and quicker cars only)

Race Format: Quick 16 field, Pro ladder, Heads-up, Pro tree, No breakout
Body: 1987 & newer vehicles only. Aftermarket body parts are limited to hoods, trunks lids, sunroofs, wings, ground effects, bumpers, and front fenders only. One-piece front ends are not permitted. All other body parts must be stock. All windows must be functional. No body parts may be removed during competition.
Induction: Engine must be EFI. Any style intake or individual throttle bodies are permitted
Chassis: Full stock chassis is required. Cutting or drilling for lightening purposes of the chassis is not permitted. Aftermarket “K” members are permitted on RWD cars.
Suspension: Stock type suspension cars only. Aftermarket direct replacement A-arms, struts, and shocks are allowed. Wheelie bars and ladder bars are prohibited.
Street Equipment: All windows must be OEM glass. Headlights and brake lights are required (one headlight may be removed for air induction). Stock dashboard and full interior from front seats forward is required (both front seats are required). Aftermarket interior and seats are permitted.
Exhaust: Muffler(s) are required.
Electronics: Two-steps, aftermarket ECU’s, and engine management systems are allowed.
Driveline: Cars originally equipped to independent rear suspension must remain independent rear suspension (IRS conversions to straight rear axle are prohibited). Aftermarket axles, gear ratios, spools, and positive traction differentials are permitted.
Nitrous Oxide: On cars that are not permitted to use nitrous oxide, all nitrous bottles and nitrous/fuel solenoids must be removed off car entirely.
Transmission: OEM transmission from the same manufacturer as car is required. RWD cars with manual transmission are permitted to use aftermarket stock-style clutch-assisted transmissions (no sequential transmissions).
Fuel: Gasoline only permitted. Aftermarket fuel cells are permitted.
Tires (FWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 25.0” x 9”.
Tires (RWD cars): Any size DOT radial tires only are permitted.
Tires (AWD cars): Any size DOT radial tires only are permitted.

4-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Power Adders: Prohibited
·Minimum Weight: B series & other series motors - 2050 lbs
·Minimum Weight: K series motors - 2200 lbs

6-cylinder cars:
·Engine: OEM block from same manufacturer as car is required. Block may be swapped between different models of same manufacturer. Aftermarket blocks are prohibited.
·Power Adders: Prohibited
·Minimum Weight: All series motors - 2100 lbs


**STREET STOCK**
(14.99 and quicker cars only)

Race Format: Quick 16 field, Pro ladder, Heads-up, Pro tree, No breakout
Body: 1987 & newer vehicles only. Aftermarket body parts are limited to hoods, trunks lids, sunroofs, wings, ground effects, bumpers, and front fenders only. One-piece front ends are not permitted. All other body parts must be stock. All windows must be functional. No body parts may be removed during competition.
Induction: Engine must be EFI. Any style intake is permitted (individual throttle bodies are prohibited).
Chassis: Full stock chassis is required. Cutting or drilling for lightening purposes of the chassis is not permitted.
Suspension: Stock type suspension cars only. Aftermarket direct replacement A-arms, struts, and shocks are allowed. Wheelie bars and ladder bars are prohibited.
Street Equipment: All windows must be OEM glass. Headlights and brake lights are required (one headlight may be removed for air induction). Stock dashboard and full interior from front seats forward is required (both front seats are required). Aftermarket interior and seats are permitted.
Exhaust: Muffler(s) are required.
Electronics: Two-steps, aftermarket ECU’s, and engine management systems are allowed.
Driveline: Cars originally equipped to independent rear suspension must remain independent rear suspension (IRS conversions to straight rear axle are prohibited). Aftermarket axles, gear ratios, spools, and positive traction differentials are permitted.
Nitrous Oxide: On cars that are not permitted to use nitrous oxide, all nitrous bottles and nitrous/fuel solenoids must be removed off car entirely.
Transmission: OEM transmission from the same manufacturer as car is required. Aftermarket transmissions are prohibited.
Fuel: Gasoline only permitted. OEM functional gas tank must be used. Modifications to the sump area are permitted.
Tires (FWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 25.0” x 9”.
Tires (RWD cars): Any size DOT radial tire permitted. Maximum size Slick or DOT Slick is 26.0” x 10”.
Tires (AWD cars): Any size DOT radial tires only are permitted.

2-rotor cars:
·Engine: No motor swaps allowed. Engine and cylinder head must have been available for year, make, and model of car sold in USA.
·Power Adders: Prohibited
·Minimum Weight: None (due to the wide range of vehicle types and stock type nature of vehicles)

4-cylinder cars:
·Engine: No motor swaps allowed. Engine and cylinder head must have been available for year, make, and model of car sold in USA.
·Power Adders: Prohibited
·Minimum Weight: None (due to the wide range of vehicle types and stock type nature of vehicles)

6-cylinder cars:
·Engine: No motor swaps allowed. Engine and cylinder head must have been available for year, make, and model of car sold in USA.
·Power Adders: Prohibited
·Minimum Weight: None (due to the wide range of vehicle types and stock type nature of vehicles)


**STREET ET**
(Open to sport compact street cars of any ET)

Race Format: ET Bracket racing on a .500 full tree.
Body: Any year vehicles are allowed.
Chassis: Full stock chassis is required.
Engine: 2-Rotor, 4-cylinder, and 6-cylinder cars only permitted (8-cylinder, 10-cylinder, and 12-clyinder engines are permitted if it is an import vehicle)
Power Adders: Any power adders are permitted.
Suspension: Stock type suspension cars only. Wheelie bars are prohibited.
Street Equipment: All windows must be OEM glass. Headlights and brake lights are required (one headlight may be removed for air induction).
Exhaust: Muffler(s) are required unless turbocharged.
Electronics: Two-steps are permitted on manual transmission cars only. Delay boxes, transbrakes, and air shifters are prohibited.
Tires: DOT radial tires, slicks, or DOT slicks are permitted of any size.


**STREETBIKE ET**
(Open to street bikes of any ET.)

Race Format: ET Bracket racing on a .500 full tree.
Body: Any type streetbike
Engine: 2-cylinder and 4-cylinder engines are permitted.
Suspension: Wheelie bars are prohibited.
Street Equipment: Headlight and brake light is required.
Exhaust: Muffler is not required.
Electronics: Delay boxes are prohibited.
Tires: DOT tires only are permitted.

 

Thanks

 

Very Nice..

 

Thanks for posting Jason!

 

For wild street, why are the 4 cylinders limited to a smaller turbo than the 6 cylinders?

 

Because generally those cars are pulling another 800lbs of weight. I want to set minimum weights soon for these cars in all classes, but need to get the correct data.

 

I just made the updates myself to the mirdrag.com/imstar page. So it is updated now with purses, dates, and rules now.

 

Looks Awesome Jason!!

btw, i think you have the et's backwards for true street and allmotor

 

Jason you are the man. I feel so lucky to live in an area with such a great track and staff.

 

Jason, can i run a side exit header in allmotor as long as it has a race muffler on it?

 

Nice Jason

I was getting worried about the East Coast for racing

 

Yes, that wouldnt be a problem.

 

Thanks guys, I have had alot of help with people on the rules. These are the same rules as the World Cup Finals (just without the 8cyl and 10cyl). I do not want to bring those cars to the IMSTAR series. The IMSTAR series will be unique like the sport started for Compacts only.

Feel free to use these rules and class names for any other events so we can try to standardize the sport and class names more. We dont want to split up the pie into too many places. Not saying our rules are the best out there or anything, dont get me wrong. But this sport would have been better to this day if all of the series and sanctions adopted the same rules and class names from day 1.

 

i agree 100%

i think the allmotor rules look great and are very simple. i would love for BOTI to have the same rules as far as not requiring rear interior. also the weight penalties for the k series make for a tighter field which is what the spectators want to see.

hopefully this season will have some great turnout and close racing!

 

Then why the rotories are at 80mm???

 

Because rotaries can't do jack with only 80mm. lol They're not the most efficient engines out there.

 

Yeah I have some friends with big *** turbos on their street cars and they make under 600 running them pretty hard.

 

The rules have just been slowly evolving and until we see something that needs to be changed we have left it a bit open. I am just a track promoter and feel that I know more than most track promoters in this field, but certainly I am no expert. Wish you didnt live so far away, would be great to have your car up here.

 

Why don't you give the 6 cylinders an 88mm limit and the 4 cylinders an 80mm limit. Then no one has to change their setup.

 

the rotaries are only 1.3l but they are light, nice Jason

 

Looks good. MIR/IMSTAR stepping up in 09, Thanks Jason

 

Which class are you referring to? Street Fighter?

If so, its a new class and still trying how to figure out and keep those cars in the mid 8 second range.

 

cant wait to make a few trips down

 

Imstar/ Honda Day/ import survival/ summer slam. Can somebody pleases let a Hotrod car in. I'll put up my own money for my own purse if a couple other Hotrod cars would commit to showing up and doing the same just so we can race.

 

Wild Street.