Post by True Grit on Feb 13, 2015 9:48:34 GMT -6
I have been thinking about some 4x4 classes that I think would help our organization. I have set down and tried to come up with some rules and classes that would be economical to the working man and not all that expensive. They are both small block classes and are a light weight limit to withstand a lot of punishment and less breaking. I raised the cubic inch limit to 408. This is because it allows all makes and models to be equal. Just take a look and see what you think. Don't bash me on them to hard I am just trying to think of ways to get more action for people who don't run 2wd's please reply with your comments.5500lb Super Modified 4x4 Trucks.docx (16.12 KB)5500lb Super Modified 4x4 Trucks.docx (16.12 KB)
I left off a well base on the little trucks so everyone could think about it but I think it should be long wheel base trucks.
5500lb Super Modified 4x4 Trucks
Engine
1. Engine must be 470 cubic inches or smaller. Must be OEM production block (no aftermarket blocks). Must have casting numbers on block. OEM cast Iron heads no raised runners, no titanium valves only modifications to the runners will be port and polish. May run roller rockers NO ROLLER CAMS.
2. Engine must be naturally aspirated.
3. Engine block and cylinder heads will be cast iron.
4. Open headers allowed, exhaust will exit straight back or vertically through the hood.
5. Rear of engine block can be no further forward than 12 inches measured from the center of the front axle tube.
6. No tunnel rams or fabricated intake manifolds allowed.
7. One carburetor only. One 4-barrel, naturally aspirated carburetor, 850C.F.M. maximum with factory number on choke housing must remain stock. Only carburetor# allowed are Holley 4781 and 9380. Numbers may not be altered. All air must go thru Ventura. Carburetor “No Go Tool” must not exceed below factory casting ring in non-Modified Ventura. Tool must not enter bottom base plate. All other alterations are acceptable.
8. No carburetor spacer larger than 2 inch thick measured from top of intake to bottom of carburetor.
Fuel
1. Must run KOTTPA Spec fuel only. Sunoco-Purple 110; Blue 112, Orange 114, Red 116, V.P. C-12, C-14, C-16, Torco 112, 114, 116. Alcohol must be pure, no additives of any kind. Must pass water test. No Scent or Top Lube. No pro oxide, no pro blend, no oxygen carriers of any kind, no scent additives.
Frame
1. Must be OEM steel frame no heavier than 1 ton.
2. Rear traction bars may be no further forward than 80 inches measured from the center of the rear axle.
3. Rear spring blocks allowed (may be welded, springs optional)
4. Must use OEM transfer case and transmission case, NO drop boxes or reversers of any kind allowed. Must use OEM transfer and transmission No cut gears all internals must be OEM, NO drop boxes or reversers of any kind allowed.
5. Stock wheelbase no longer than 134 inches.
6. No batteries or fuel tanks may be mounted inside the cab. Factory seat tanks will be accepted.
7. No military equipment allowed.
8. Front differential may be no larger than a ton rating; rear differential may be no larger than a 1 ton rating.
9. Fuel cell can be mounted on weight bracket.
10. No hydraulic steering. Must be factory power steering.
Weight Rack
1. Weights can be mounted no further forward than 60 inches from the center of the front axle.
2. Weight boxes are allowed.
3. All weight racks will be in pulling position at time of weigh in and hitch check.
4. Batteries may be mounted on weight rack.
Hitch
1. Draw Bar will be no shorter than 42 inches from center of rear axle to hook point. No part of hitch to exceed 36” tall. Top stop not part of Hitch.
2. Maximum hitch height is 26 inches.
3. Hitch must be stationary.
4. No air pressure adjustments after hitch height is checked and final.
Tires and Wheels
1. All tires must be D.O.T. approved.
2. Maximum tire size 35x12.50
3. Maximum rim width is 12 inches (Beadlock is not part of measurement).
4. Wheels can be offset no more than ½ track of front tires.
Bodies
1. Full size truck bodies only
2. Cab may be gutted must be OEM style glass. . Cab can be gutted must have factory steel floor (no aluminum) must be OEM style glass.
3. All trucks must have a bed floor, either metal or word or bed cover.
4. No lift bodies.
Miscellaneous
1. Allow traction bars on front not exceed 48” over.
2. First truck may drop to last.
3. Maximum weight of vehicle is 5500 LBS
5500lb Big Block Super Modified 4x4 Trucks.docx (15.35 KB)
I left off a well base on the little trucks so everyone could think about it but I think it should be long wheel base trucks.
5500lb Super Modified 4x4 Trucks
Engine
1. Engine must be 470 cubic inches or smaller. Must be OEM production block (no aftermarket blocks). Must have casting numbers on block. OEM cast Iron heads no raised runners, no titanium valves only modifications to the runners will be port and polish. May run roller rockers NO ROLLER CAMS.
2. Engine must be naturally aspirated.
3. Engine block and cylinder heads will be cast iron.
4. Open headers allowed, exhaust will exit straight back or vertically through the hood.
5. Rear of engine block can be no further forward than 12 inches measured from the center of the front axle tube.
6. No tunnel rams or fabricated intake manifolds allowed.
7. One carburetor only. One 4-barrel, naturally aspirated carburetor, 850C.F.M. maximum with factory number on choke housing must remain stock. Only carburetor# allowed are Holley 4781 and 9380. Numbers may not be altered. All air must go thru Ventura. Carburetor “No Go Tool” must not exceed below factory casting ring in non-Modified Ventura. Tool must not enter bottom base plate. All other alterations are acceptable.
8. No carburetor spacer larger than 2 inch thick measured from top of intake to bottom of carburetor.
Fuel
1. Must run KOTTPA Spec fuel only. Sunoco-Purple 110; Blue 112, Orange 114, Red 116, V.P. C-12, C-14, C-16, Torco 112, 114, 116. Alcohol must be pure, no additives of any kind. Must pass water test. No Scent or Top Lube. No pro oxide, no pro blend, no oxygen carriers of any kind, no scent additives.
Frame
1. Must be OEM steel frame no heavier than 1 ton.
2. Rear traction bars may be no further forward than 80 inches measured from the center of the rear axle.
3. Rear spring blocks allowed (may be welded, springs optional)
4. Must use OEM transfer case and transmission case, NO drop boxes or reversers of any kind allowed. Must use OEM transfer and transmission No cut gears all internals must be OEM, NO drop boxes or reversers of any kind allowed.
5. Stock wheelbase no longer than 134 inches.
6. No batteries or fuel tanks may be mounted inside the cab. Factory seat tanks will be accepted.
7. No military equipment allowed.
8. Front differential may be no larger than a ton rating; rear differential may be no larger than a 1 ton rating.
9. Fuel cell can be mounted on weight bracket.
10. No hydraulic steering. Must be factory power steering.
Weight Rack
1. Weights can be mounted no further forward than 60 inches from the center of the front axle.
2. Weight boxes are allowed.
3. All weight racks will be in pulling position at time of weigh in and hitch check.
4. Batteries may be mounted on weight rack.
Hitch
1. Draw Bar will be no shorter than 42 inches from center of rear axle to hook point. No part of hitch to exceed 36” tall. Top stop not part of Hitch.
2. Maximum hitch height is 26 inches.
3. Hitch must be stationary.
4. No air pressure adjustments after hitch height is checked and final.
Tires and Wheels
1. All tires must be D.O.T. approved.
2. Maximum tire size 35x12.50
3. Maximum rim width is 12 inches (Beadlock is not part of measurement).
4. Wheels can be offset no more than ½ track of front tires.
Bodies
1. Full size truck bodies only
2. Cab may be gutted must be OEM style glass. . Cab can be gutted must have factory steel floor (no aluminum) must be OEM style glass.
3. All trucks must have a bed floor, either metal or word or bed cover.
4. No lift bodies.
Miscellaneous
1. Allow traction bars on front not exceed 48” over.
2. First truck may drop to last.
3. Maximum weight of vehicle is 5500 LBS
5500lb Big Block Super Modified 4x4 Trucks.docx (15.35 KB)