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NMCAJake
12-12-2006, 07:17 PM
NMCA-EDELBROCK SERIES
LATE MODEL EFI CLASS 2007 RULES
Preliminary Version

CLASS DESIGNATIONS & INDEX
9.50
10.00
10.50
11.00
11.50
12.00
12.50
13.00
13.50
14.00
14.50
15.00

Class Description
Late Model EFI is designed for Late Model production domestic “hot rod” vehicles which are OEM-equipped with electronic fuel injections. Late Model EFI approved body styles are permitted. Vehicles must run engine type originally installed in vehicle. Late Model EFI is based on an index which you must choose during the tech-in process or prior to the first scheduled qualifying run. Once a qualifying run has been made, changing your index is prohibited. The closer you qualify to your index, the higher you will qualify. All runs made faster than your index will be disqualified. Late Model EFI racing will be conducted at all drag racing events (see race schedule).

Qualifying Information, Ladder Type, & Tree
All Run, NHRA Sportsman Ladder, .500 Pro Tree, Handicap Start.

ELIGIBLE YEAR MODELS AND BODY STYLES
The following is a list of cars/engines, which are allowed to compete in the Late Model EFI class:
• Chevrolet Corvette , LS1, LS2, LS6, LS7, 1997-current
• Chevrolet Camaro, LS1, 1998-current
• Chevrolet SSR, LS2, 2005-2006
• Ford Mustang, 4.6L Modular equipped, 1996-current
• Dodge Viper, V10, 1992-current
• Dodge Challenger, Hemi V8, 2008-current
• Pontiac GTO, LS1/2, 2004-current
• Pontiac Trans Am LS1, 1998-current

LATE MODEL EFI Classes
All LATE MODEL EFI class participants must declare & have posted the LATE MODEL EFI class of choice prior to the 1st scheduled qualifying run in their respective eliminator or at the time of technical inspection. No change of class is permitted after the first scheduled qualifying round for the respective eliminator.

Class Guidelines

1: ENGINE
1.1 COOLING SYSTEM
RADIATOR: OEM production-style or aftermarket radiator is required and must be mounted in stock location. Stock core support is required.
WATER PUMP: Any aftermarket (belt drive or electric drive) pump permitted.
COOLING FANS: Any permitted.
1.2 ENGINE
ENGINE: See ELIGIBLE YEAR MODELS AND BODY STYLES. Any internal engine modifications permitted.
1.3 EXHAUST
EXHAUST: All entries allowed to use tubular headers. Adapter plates permitted to bolt headers to cylinder head. Exhaust must be directed out of car body, away from driver and fuel tank.
1.3a) HEADERS & COLLECTORS: Any headers and/or collectors permitted.
1.3b) EXHAUST TUBING/SIZE: Any tubing size permitted.
1.3c) TAILPIPE & EXHAUST RULES: Not required.
1.3d) MUFFLER REQUIREMENTS: Not required.
1.5 FUEL DELIVERY SYSTEM
DELIVERY SYSTEM: Fuel cells, electric or mechanical fuel pumps, pressure regulators, and any line size permitted. Fuel pump must shut off with a master electrical switch. Stock gas tank (if used) must be retained in factory location. Modified fuel pickups & outlet permitted.
Aftermarket/fabricated fuel tank or cell permitted. Must be located in trunk area. If tank or fuel filler is inside trunk, a bulkhead of minimum .032” aluminum or .024” steel must be used between trunk and driver compartment, and tank must be vented to outside of car. When used, fuel cells must have a metal box protecting the part of the fuel cell that is outside the trunk floor. Non-metallic fuel cells or tanks must be grounded to frame. See NHRA General Regulations Section 1.5.
1.6 GASOLINE
GASOLINE: Gasoline is the only permitted fuel in LATE MODEL EFI classes.
1.8 ALCOHOL
Prohibited.
1.9 NITROUS OXIDE
NITROUS OXIDE: Permitted.
1.10 OIL SYSTEM
OILING SYSTEM: OEM Style (Wet or Dry Sump, as equipped), required.
1.12 SUPERCHARGER
SUPERCHARGER: Permitted.
1.15 BLOCK
BLOCK: Any permitted.
1.16 ENGINE LOCATION/MOUNTS
ENGINE LOCATION/MOUNTS (LATE MODEL EFI CLASSES): Not regulated.
1.17 HEADS
HEADS: Aftermarket cylinder heads permitted.
1.18 VALVETRAIN
VALVETRAIN: Any valvetrain permitted.
1.19 CARBURETOR
CARBURETOR (LATE MODEL EFI CLASSES): Prohibited.
1.20 FUEL INJECTION
FUEL INJECTION: Only electronic fuel injection is accepted.
1.21 INTAKE MANIFOLD
INTAKE MANIFOLD: Sheet metal intake prohibited. Manifolds restricted to commercially available cast or plastic units.
1.22 SOLENOIDS
SOLENOIDS: Any accepted.
1.23 TURBOCHARGER
TURBOCHARGER: Accepted
1.24 AFTERCOOLER/INTERCOOLER
AFTERCOOLERS/INTERCOOLER: Accepted.

2: DRIVETRAIN
2.3 CLUTCH
CLUTCH: Clutch operation must be manually applied and disengaged with foot during run.
2.4 DRIVESHAFT
DRIVESHAFT: Any permitted.
2.11 REAREND
REAREND: Any automotive type rearend permitted.
2.12 MANUAL TRANSMISSIONS
MANUAL TRANSMISSION: OEM or aftermarket transmissions with a maximum of 6 forward speeds permitted. Clutchless transmissions prohibited. All shifts must be made manually without the aid of electric, hydraulic or pneumatic devices. Starting line rev limiters permitted. Torque converter not permitted with this type transmission.
2.13 PURPOSE BUILT TRANSMISSIONS
PURPOSE BUILT TRANSMISSIONS: Prohibited.
2.14 AUTOMATIC TRANSMISSIONS
(OEM American transmissions or replicas of OEM American transmissions that use planetary gears)
AUTOMATIC TRANSMISSIONS: Automatic transmissions originally produced by any American automobile manufacturer or replicas of an automatic transmission produced by any American automobile manufacture (Ex. Deadenbear PG transmission) are accepted.


3: BRAKES & SUSPENSION
3.1 BRAKES
BRAKES: The braking system may be upgraded.
3.2 SHOCK ABSORBERS
SHOCK ABSORBERS: Each vehicle in competition must be equipped with one operative shock absorber for each sprung wheel. Shock absorbers may be either hydraulic or friction type, securely mounted and in good working order.
3.4 SUSPENSION
FRONT SUSPENSION: Stock front suspension required. Aftermarket direct replacement suspension components including A-arms permitted.
REAR SUSPENSION: Stock-type rear suspensions required. Ladder bars, four-links prohibited.
3.6 WHEELIE BARS
WHELLIE BARS: Wheelie bars prohibited.

4: FRAME
4.4 FRAME
FRAME (LATE MODEL EFI CLASSES): Stock frame required but may be strengthened with the addition of braces and subframe connectors. Back-half chassis and mini-tubs are prohibited.
4.5 GROUND CLEARANCE
GROUND CLEARANCE: Minimum 3 inches from front of vehicle to 12 inches behind centerline of front axle; 2 inches for remainder of vehicle, except oil pan and exhaust headers.
4.12 WHEELBASE
WHEELBASE (LATE MODEL EFI CLASSES): Must retain stock wheelbase with a maximum variation from left to right and front to back of 1 inch. Stock overhangs are required.

5: TIRES & WHEELS
5.1 TIRES
TIRES: Street type, drag radial, or drag slick tires permitted. Maximum racing tire rear width is 11.0-inches as measured (slicks) or 345mm with a drag radial or street radial. The front tires are limited to 4.5-inch minimum tread width. The tread of the tires is not allowed to protrude outside the exterior bodyline at the top of the tire.

6: INTERIOR
6.1 INTERIOR
INTERIOR (LATE MODEL EFI CLASSES): Must have full factory seating, upholstery, and carpeting. Aftermarket upholstered bucket seats permitted. Full dashboard mandatory. Aftermarket gauges permitted. Rear seat may be removed when roll bar/cage is installed. Area must be carpeted or upholstered equivalent to factory specifications (no bare paneling).

7: BODY
LATE MODEL EFI CLASSES: Exterior body modifications are permitted.

7.1 ADVERTISING
GRAPHICS/LETTERING: Graphics/lettering for advertising or creative purposes permitted on entire body.
CONTINGENCY DECALS: In order to be eligible for NMCA-Edelbrock official contingency program, all contingency decals are required to appear only on the rear quarter windows or rear window in a clear and organized fashion. Contingency decals may not be overlapped or modified. Other decals and sponsorship (non-contingency) may appear on bodywork, front end, and on windows.
NMCA-Edelbrock REQUIRED DECALS: The following decals are required for competition in NMCA-Edelbrock events.
NMCA-Edelbrock Windshield Decal – must be installed on top of windshield. This NMCA-Edelbrock decal must be the only decal on top of windshield. Other vehicle sponsor decals may be placed at base of windshield.

NMCA-Edelbrock 2007 Drag Racing Series “Side” Decals – must be installed on each side of vehicle on quarter windows.

Class Sponsor Decal – class sponsor decal must be installed on base of windshield on the passenger side.

Permanent Numbers – permanent numbers are required for competition in this class.

7.2 SPOILERS, WINGS
SPOILERS, WINGS: Aftermarket wings and/or spoilers permitted.
7.5 FIREWALLS
FIREWALLS: Stock firewall in stock location mandatory.
7.6 FLOOR/TRUNK PAN
FLOOR/TRUNK PAN: Complete stock floor in stock location mandatory. Floor/Trunk Pan modifications permitted for clearance purposes of fuel cell accepted. Material to be used if there are floor/truck pan modification is limited to same type material and same or greater thickness as original floor/trunk pan.
7.7 HOOD/SCOOP
HOOD/SCOOP (LATE MODEL EFI CLASSES): Cowl induction hoods accepted, may be no higher than 5 inches. Hood scoops prohibited. The entire induction system must be completely covered by hood or scoop, which must be part of the vehicle hood.
7.9 WINDSHIELDS/WINDOWS
WINDSHIELD/WINDOWS: Must be OEM safety glass
7.12 GRILLE
GRILLE: A full-production grille is required for the body style used. Covering in front of or behind the grille prohibited.
7.13 WHEEL WELLS
INNER WHEELWELLS: Stock wheel tubs required.
OUTER FENDERS: Leading and trailing edges of fenders may be trimmed for tire clearance, maximum 2”.
7.14 RAM AIR
RAM AIR: Permitted.
7.15 DOORS
DOORS: OEM doors required.

8: ELECTRICAL
8.1 BATTERY
BATTERY: Battery may be relocated. Charging system required.
8.3 IGNITION
IGNITION: Any battery powered ignition system permitted.
8.5 STARTER
STARTER: All entries must be self-starting with on-board starter.

9: SUPPORT GROUPS
Bracket racing aids such as optical sensors, delay boxes, stutter boxes, and throttle stops prohibited. The application or use of any device, mechanical or electronic, that permits the driver to ascertain the position of their vehicle in relation to the starting line is prohibited.
9.2 ONBOARD DIAGNOSTICS/DATA RECORDERS
ONBOARD DIAGNOSTICS/DATA RECORDERS: Onboard diagnostics and data recorders used to monitor and record parameters such as a driveshaft speed, acceleration, nitrous timing, chassis strain, suspension travel etc., accepted. Wide band oxygen sensors permitted. “Playback” tachometers permitted. Laptops permitted in vehicle.
9.8 TOW VEHICLES
TOW VEHICLES: Vehicles may not be towed in or to staging lanes. Vehicles may not be towed from the return road.

10: DRIVER
10.4 CREDENTIALS
CREDENTIALS: See general regulations.

11: CLASS & SAFETY REQUIREMENTS
It is the participant’s responsibility to familiarize oneself with the class requirements as found in the 2007 NMCA-Edelbrock rulebook and the safety requirements as found in the 2007 NHRA rulebook.
The participant agrees that the participant bears the ultimate responsibility at all times to ensure the safety of participant’s vehicle and to ensure that participant complies with all applicable NHRA & NMCA-Edelbrock rules. The participant agrees that participant is in the best position to know about the construction and operation of participant’s vehicle, equipment, and clothing, and whether there has been compliance with all applicable NHRA & NMCA-Edelbrock rules.

12: STREET-LEGAL REQUIREMENTS
Headlights and tail lights for year & make of body used mandatory.

13: WEIGHT
WEIGHT: Weight is not a tech item however excessive lightening as determined by the tech officials will not be permitted.

Villain281H
12-12-2006, 08:00 PM
This looks good, hopefully it will bring in even more cars to every event!

90GT398
12-12-2006, 10:08 PM
Is that right you can't run an 86-95 Ford Mustang?

Chilli
12-13-2006, 06:07 AM
No LT1 Camaros or Trans Ams?????????????????:rolleyes:

Swindle was asking for this class last year and you right him out of the rules....nice

CrawlinRS
12-13-2006, 09:56 AM
Thats awesome count me in !!

Will this be a points class ?

car/engine rules.
What about engine swaps ?

For example can a 98-02 F-body that has a LS2 race in this class ? Rules only say Camaro/trans am LS1.

knickel
12-13-2006, 05:41 PM
Why no 87-93 Stangs?

CrawlinRS
12-13-2006, 09:08 PM
Why no 87-93 Stangs?

It looks like they are trying to make a class for the newer generation engines like the LSX's, 4.6, and the hemi.

I guess if they included the 87-93 stangs then they would have to include all the TPI and LT1 cars too.

GMCRACER
12-13-2006, 09:08 PM
Why no 87-93 Stangs?


I like it a lot myself.... but my 85 L98 Vette won't go either...:(

Matt Swindle
12-14-2006, 10:21 AM
No LT1 Camaros or Trans Ams?????????????????:rolleyes:

Swindle was asking for this class last year and you right him out of the rules....nice

John..
I sure was perplexed by that I can tell ya..

But..it's not quite what I had petitioned for..I was hoping for a 11:00 or 10:90 index heads-up class ....
like the Hot Rod Magazine 'NMCA' EFI rules..
like the PSCA runs..
NO throttle stops..
I thought it should include carbs as well..

the main thing being an "affordable" heads-up class..even if it is an index..
I just detest a handicap tree...

What can I tell ya John..?
I ain't got the bucks or the car to run Xtreme Street and I hate handicap racing..
Oh well..

Chilli
12-14-2006, 12:07 PM
I would love to see side by side racing on a pro tree also. I have a blast when I race in the 6.50 class at Wabash Valley.

I thinks its odd that they won't allow the vast majority of EFI cars to play.......weird. I guess they have a sponsor that likes the rules? See you in Open Comp...maybe my wife would race the Camaro in EFI should be a 3 or 4 round race...lol

CrawlinRS
12-14-2006, 02:23 PM
John..
I sure was perplexed by that I can tell ya..

But..it's not quite what I had petitioned for..I was hoping for a 11:00 or 10:90 index heads-up class ....
like the Hot Rod Magazine 'NMCA' EFI rules..
like the PSCA runs..
NO throttle stops..
I thought it should include carbs as well..

the main thing being an "affordable" heads-up class..even if it is an index..
I just detest a handicap tree...

What can I tell ya John..?
I ain't got the bucks or the car to run Xtreme Street and I hate handicap racing..
Oh well..

I agree, they need a low buck entry level heads up class. There are so many LSX cars out there, that I am sure would love to have a heads up class. I like the 11.0 idea but actaully a 11.50 class would be a lot better, you would not need a 6 point roll bar then, and it would help keep the cost down for newbies like myself.

Diggler
12-19-2006, 07:12 AM
I have an LT1 in an '88 t/a i cant run either.
there wont be many cars showing up for this one most likely, its too limited.

NOS351
12-22-2006, 08:48 AM
I got excited about this when I saw it. Then I saw
no 86-95 Mustangs. Now the excitement is gone. Alas.
Hopefully someone will rethink the eligible cars list.

CrawlinRS
12-22-2006, 11:31 AM
Guys its not the end of the world cause the 86-95 mustangs are not included. Evidenatlly the NMCA doesn't consider you guys "Late models" anymore.
Doesn't NMRA have a class for you guys ??

I'm sure there will be plenty of LS1 f-bodys and vettes and 4.6 mustangs in the class. Its kinda nice that there is finally a class for LSx cars.

zssman
12-23-2006, 03:09 AM
GUYS, holler louder. car counts. Efi means EFI. The 5.0 cars started this. Belive me. There the ones that got me started. I got my but kicked a lot back in the old EFI CLASS. I,ve got a LS1 car now. BUT again EFI means EFI. Rules should be if its factory efi, BRING IT. Car counts will be huge with 5.0 stangs, LT1 T/As, an LS1 camaros. ALL battling it out in the 1/4. Like the old days. LETS DO THIS.

GMCRACER
12-23-2006, 06:29 AM
One more time.....

HEY NMCA.... Ummmm you missed like a lot of cars that could be in this class and well within the rules..... Surfs up!

REDGAR
12-28-2006, 09:31 PM
Is this class in addition to open comp?

T56 Rebuilds
12-29-2006, 11:03 PM
Yes it is in addition to open comp. They have eliminitated the super trucks class or merged it to open comp

T56 Rebuilds
12-29-2006, 11:05 PM
Also I wounder does a sheetmetal elbow throttle body adapter count as a sheetmetal intake.

kpevin
01-01-2007, 08:51 PM
THANK YOU for doing something like this. Hopefully the turnout is good and it will stay around a while. There are sure a ton of cars that will fit in this and no one can complain about the rules thats for sure. I was going to try to hit a couple open comp races but I may try this instead.

A 9.0 index would be pretty cool too..

Also curious on the on the core support thing, lot of LS1 f-bodies modify the upper part and tilt the top of the radiator forward for more room - will that be OK since most of the stock support is still there?

JRcamaroZ28
01-03-2007, 04:56 AM
i like the format but only thing keeping me out is that mini tubs are not allowed :(

JR

DAVE_308
01-03-2007, 07:20 PM
This class looked interesting to me untill I read .500 full tree. OC it will be for me .500 PRO tree all the way. NMCA save the second every pair flash ALL the yellows at once! Later. Dave NMCA OC 9024

jmetz
01-14-2007, 08:26 PM
I agree with many of the others on this post. It is an index class, so why not open it up the the LT1 cars? I'd probably bring mine out for that, since I can't run it in mean street. Flexible rules equals more car counts in my opinion. Keep up the good work!

K9Kev
01-16-2007, 04:13 PM
Sounds like alot of fun on a tighter budget. There's a ton of these cars around on the streets, looks like it will be a great beginner class.

When is it going to be posted up as a "Confirmed Class"?? Are there any more specifics to the rules?

Curious????

K9Kev
01-17-2007, 10:49 AM
Got a call back from Jake @ Fastest Street Car, looks like it is pretty open just as the rules state. Wa haaaaaahaaa

Lots of opportunity here for Modern cars to duke it out!

Thanks for the quick response Jake !!

REDGAR
02-02-2007, 10:42 AM
This class looked interesting to me untill I read .500 full tree. OC it will be for me .500 PRO tree all the way. NMCA save the second every pair flash ALL the yellows at once! Later. Dave NMCA OC 9024

Not sure if it was changed but the top of the thread says .500 Pro Tree now

CrawlinRS
02-05-2007, 08:28 AM
Not sure if it was changed but the top of the thread says .500 Pro Tree now

I think you're right.

NMCAMike
02-22-2007, 08:30 AM
Also I wounder does a sheetmetal elbow throttle body adapter count as a sheetmetal intake.

I would like to take a look at it. Do you have a part number?

9SEC6SPD
02-22-2007, 08:01 PM
too bad a 96 EFI Camaro isn't considered as late model as a 92 Viper is.
yeah i know i alreay said that.

it is just frustrating when i choose to stick with my stock block, keep it pump gas friendly and choose to go fast ripping thru my T56 trans, and all the while never being able to find a class that i fit in. well i be damned if i see EFI class, and would ya know it, my car isn't considered late model efi.

T56 Rebuilds
02-22-2007, 09:24 PM
:) Hey 9sec6spd did you get that gear problem fixed.:)

9SEC6SPD
02-23-2007, 09:58 PM
hell yeah, those parts were so pretty after cryo and mikronite i didn't want to putt'em back in the trans. if you want pix i can send them. the new cooling system is also in place, i can send ya pics of that as well if you would like, it came out nice. yeah sure i am creaping up on 3600 pounds now, lol! but oh well. i guess i will just have to squeeze it harder :)
i got invited back to HR PGD in memphis :) that is gonna be fun in my archaic mid 90's f body leaf spring suspended camaro, lmao!

nice to see you havin' some fun! all i have to do is put the fascia back on and wait for the snow to stop flying, just long enough to go for a cruise. cold or no cold it'll be on the street soon enough! :0)

T56 Rebuilds
02-24-2007, 08:31 AM
Sounds good hope you have good luck with the gear stuff I know of a lot of viper trannys that are having lots of problems right now, not gear related but machining related. Send me some pic of it all would like to see.

9SEC6SPD
02-25-2007, 01:04 PM
i will try to get to it asap. work seems to be getting in the way. lol!!!

ya think i need to be worrying about that! oh brother...... :(