We're tossing around the idea of putting a 87(?) MJ on the local circle track. I 've raced there before in the v8"bomber" class (76 monte carlo) but we want to run a jeep. Mostly cause we're so into our xj's and we'd like to see how good we could make a jeep on the track. That being said...they're a bunch of cheatin' bastards out there...we want to run with them...(no way a "stock" vw rabbit is lifting the front left tire off the ground coming out of turn 1-2)
Its a asphalt 3/8 mile track...kinda egg shaped...
What would you do with our stock mj. 4cyl 4 speed TBI. Within these rules. We're going to the multiport set up ASAP so tell us what you'd do the way it is stock and with the MPI motor too... Remember it must APPEAR stock...
Quote:
2. Body:
A. Car body must be strictly stock. No modifications or alterations of any kind except as outlined below.
B. Removal of interior parts which can be removed with hand tools okay. No cutting of any panels allowed. Any interior part that is flammable must be removed.
C. Left and right front passenger doors may be gutted for roll bars. Minimum of 4 bars on driver’s side. Three (3) bars on passenger side.
D. All exterior trim must be removed.
E. Hood must have hood pins.
F. Inner front fender panels may be removed.
G. Complete floor pan must be retained.
H. Aluminum seat is highly recommended.
I. Fenders may be trimmed for tire clearance.
J. Stock factory brake and clutch pedal must be mounted in original factory stock location. Must use after-market gas pedal with toe strap.
K. The window channel on the front doors of a sedan style body may be removed. All other window posts must remain as placed by manufacturer in original location.
L. Must have relatively stock appearing grill. All glass or plastic must be removed.
N. No side windows of any kind.
O. Minimum ground clearance of 4 inches (body and chassis). No side skirts.
P. No spoilers on, in, or under car unless factory rear spoiler.
Q. Stock brake and clutch pedals will be in their original mounted locations.
R. No holes in hood. Hood must close in original stock position and retain original stock configuration.
3. Chassis and Suspension:
A. Full unibody must be retained as produced by the manufacturer. No modifications of any kind.
B. OEM suspension: Front and Rear.
C. Minimum weight for Chevettes, VW’s, and Escorts is 2150 lbs. Minimum weight for all others is 2400 lbs.
4. Brakes:
A. Stock factory OEM 4 wheel working brakes only. No brake bias devices of any kind.
5. Drive Train:
A. Rear end must be strictly stock for make and model of car. Must not be locked.
B. Must have stock transmission for make and model of car with all gears working.
C. Engine location - in stock position for make and model in factory mounts.
D. Stock clutch and flywheel assembly for make and model. No lightening of any kind.
E. Scatter shield or belt mandatory.
6. Wheels and Tires:
A. Steel racing or reinforced wheels not to exceed 6" wide.
B. Large lug nuts and studs recommended.
C. Tires must be DOT Radial 70 series or smaller and all four must be same size.
D. Tires must not exceed 2" from fender wells.
E. No recaps.
7. Fuel:
A. Only track approved pump racing fuel allowed. No additives.
B. No nitrous oxide.
C. Maximum of 8 gallon fuel cell mandatory. Cutting the trunk for the fuel cell is permitted. Fuel cell must be in 12 gauge can. Maximum of 8 gallons.
D. Minimum ground clearance will be 8 inches.
8. Engine:
A. 4-cylinder engines only. No rotary engines.
B. Engines must remain strictly stock as produced by manufacturer. No modifications of any kind unless outlined herein.
C. Year of engine not interchangeable.
D. No high performance engine of any kind. No high performance parts of any kind. No turbo engines.
E. Engine components must have been available from the manufacturer in that model year.
F . No grinding on any part of engine or component.
G. May use fuel injection heads but adapt normal carburetor in an approved manner. Check with Tech. Two valves per cylinder. No 4-valve per cylinder heads.
H. Shimming of lifters is okay.
I. Electric fans are okay.
J. Electric fuel pumps okay if original equipment. Must have oil pressure safety switch.
K. Maximum over bore allowed is .030 + .010 for clearance.
L. OEM pulley.
M. Must pull a minimum of 17" of vacuum at 1000 RPM’s.
N. Carburetor - Stock unmodified Holley 2300 series Model #7448, 350 CFM 2 barrel carburetors only, or OEM carburetor or OEM fuel injection.
1. Choke plates may be removed.
2. Any jets.
3. Any power valve.
4. No other modifications allowed.
5. Maximum 1 inch adapter plate using single gaskets only.
6. Must pass gauges used at Ocala Speedway.
O. No air boxes
P. All internal components must have factory OEM markings and not exceed factory OEM
specs. It is your responsibility to provide factory data to back up specs.
Q. Exhaust:
1. Manifold - stock OEM manifold only.
2. Exhaust may exit through passenger side door at rear bottom. Where exhaust passes
through driver’s compartment, it must be covered and insulated to prevent excess gases
and unnecessary heat in car.
Right now we're thinking about:
TJ coil in the left front to drop that a bit.
Maybe a zj coil in the right front
XJ shackles to drop the rear.
Chop the front axle tube right next to the pass side knuckle and tweak it a bit to help the camber/caster get right for the track.
Maybe some xj leaves in the rear(or some stock looking long flat leaves to lower the rear a bit)
MPI change the throttle body to 4.0
TBI see what injector flows better???
What would you do??? What year head flows best? What year exhaust mainfold?
