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Project 66 Valiant

9K views 19 replies 5 participants last post by  mrhotrod 
#1 ·
Started a new project a Big Block 1966 Plymouth Valiant will post pictures of progress. Car after media blasting.
 

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#9 · (Edited)
The reason im running leaf springs is that I want to run in the leaf spring only class. And I plan in running in the MDRA275 class also.

Leaf spring only Rules:

Single power adder only except 4cylinder or V-6)
No billet heads except NA
SB NA................................................ ........................ ............ 2700 lbs
SB N20 .................................................. ................................ 3100 lbs
add 50 pounds for non conventional
add 25 for extra carb
SB Single Blower/Turbo............................................. ............. 3300 lbs
SB Twins.................................................. ................................3350 lbs
BB NA (Up to 640 c.i.)............................................. ................3000 lbs
BB NA (Over 640 c.i.)............................................. .................3200 lbs*
*No Billet Heads
BB N20 (**3stage max limit on BB N20.**)...................................3325 lbs
add 50 pounds for unconventional heads
add 25 for extra carb
BB Single Blower/Turbo( F3/106MM MAX)............... ...................3450lbs
BB Twin Combos............................................ ........................3550 lbs

Inline 6 Cyl (Turbo/N2o Combos)........................................... ..-600 lbs
(Deduct from SB blower turbo Weights)
4 Cyl/Rotary (Turbo/N2o Combos)...........................................-800 lbs
(Deduct from blower turbo Weights)
**Inline 6 & 4 Cylinder Boosted Combos are allowed 1 single N2o Nozzle between Turbo/Blower and Intake**

CHASSIS/SUSPENSION:
1.)Leaf Spring Only Suspension!!!
2.) No full chassis car
3.)Can move leafs in and shocks can be in any location.
4.) Frame Notch permitted.


BODY/INTERIOR:
Anything goes as long as at weight, no tube chassis back half cars. Stock Appearing interior.
Must run mufflers(Except Turbo Entries).
No Billet heads (execpt SB NA) ALLOWED!!!
No wheelie bars!!!
Max 275/60 drag radial or 28x10.5 non w slick Sidewall

MDRA275 rules:

275 Rules

BODY:
The car must retain its original appearance, profiles, and dimensions. Factory roof and quarter panels must be used. Aftermarket fiberglass replacement panels are limited to hood, front fenders, doors, decklids, and bumpers only. All front ends must be of factory dimensions and cannot be stretched. Aftermarket wings and spoilers are permitted. Complete stock appearing front and rear bumpers are required. A hood must cover the entire induction system. Forward facing hood scoops/ turbo or supercharger inlets are permitted.

INTERIOR:
Factory appearing dashboard, door panels, and driver seat are required. Full Carpet is required on floorboards. Factory floor pan on driver and passenger side required. Bare inside frame of car cannot be exposed. Aftermarket steering column is permitted.

WINDSHIELD/WINDOWS:
OEM glass or lexan windows are permitted.

CHASSIS:
Complete stock chassis and frame rails must be retained. Back-halved cars are not permitted. Front core support may be modified or removed. Aftermarket bolt-on replacement front K-members/sub frames are allowed (if front shocks bolt to K-member then they must be in the factory location). Mini tubs are allowed. Rear frame rails may be notched for clearance. Factory wheelbase must be maintained.

ENGINE:
Maximum displacement for all engines is 600 ci. Small blocks are allowed any deck height but must retain stock bore spacing. GM Big Blocks are limited to a 10.2 deck height. Ford Big Blocks are limited to a 10.3 deck height. Mopar Big Blocks are limited to a 10.7 deck height.

TURBOCHARGERS:
Single turbocharger limited to 88 mm maximum. (GT55-88, Pro-Mod 88, ET-R88, Comp, Bullseye or = mid/large frame turbo). Turbocharger size will be verified by measuring the housing bore at the leading edge of the impeller wheel and must maintain the contour of the compressor housing. Inducer dimensions will not exceed 3.462 inches and Exducer dimensions will not exceed 4.765 inches on MID FRAME turbos. Inducer dimensions will not exceed 3.462 inches and Exducer dimensions will not exceed 5.56 inches on LARGE FRAME turbos. The maximum diameter of the housing bore at the leading edge of the wheel may not exceed 2 mm more than the maximum allowable turbocharger size permitted. (Inserts or reducers to achieve inlet or outlet dimensions are allowed) Any type of air to air or water to air intercooler permitted. Turbochargers w/nitrous oxide are prohibited except on 2-rotor, 4 cylinder, and inline 6 cylinder engines.

SUPERCHARGERS:
Cog or gear driven superchargers are permitted, must meet all factory inlet, outlet, and internal housing dimensions.
****Inserts or reducers to achieve inlet or outlet dimensions are permitted. Any type intercooler is permitted.
Cannot combine with nitrous oxide. Roots superchargers are limited to a 10-71. Centrifugal superchargers are permitted. Screw superchargers are not permitted.

NITROUS OXIDE:
Small block is permitted to run any type of multi-stage nitrous systems. Big blocks are limited to a single stage nitrous system – A single stage fogger (2 nitrous solenoids and 2 fuel solenoids) (any big block EFI combo running dry nitrous systems are allowed 2 nitrous solenoids only) are permitted or if using a single plate then your limited to up to (2 fuel solenoid, 2 nitrous solenoid), and purge solenoid, purge must exit engine compartment. **3500 lb. and above, combos may run fogger and single bar plate, see nitrous rule.

TRANSMISSION:
Any factory style automatic transmission allowed. Bruno-Lenco transmissions are prohibited. Clutchless manual transmission and clutch assisted manual transmissions are permitted on naturally aspirated combinations only. Electric shifters or air shifters are permitted.

INDUCTION:
Small Block combinations may run any type induction. Big Block combinations are limited to a dedicated single carburetor or throttle body with cast intake. Any EFI combos are subjected to one fuel injector per cylinder per combo.

OILING SYSTEM:
Dry sumps are permitted on all cars.

EXHAUST:
Mufflers or inserts are required on all cars except for turbo cars. Exhaust may exit underneath car or out the front fenders, but must not affect timing or staging beams.

FUEL:
Gasoline, Alcohol or E-85 is allowed. Alcohol must adhere to a 50 lbs. weight penalty. Alcohol when used in conjunction with intercoolers must adhere to a 100 lbs. weight penalty.

STREET EQUIPMENT:
Functional headlights and taillights required. All vehicles may be towed back from their passes.

SUSPENSION:
Stock style suspension cars only (See weights below for penalty for aftermarket suspension). Aftermarket direct replacement components such as: front control arms, rear control arms, front coil over shocks, and rear coil over shocks are permitted. Aftermarket rack and pinion steering is allowed. Rear leaf springs, springs, shocks, and coil-overs may be moved to accommodate tire clearance, and do not need to be mounted in stock location. Bolt-on or welded sub-frame connectors, rear sway bars, are permitted on all cars. Wheelie bars are prohibited on all cars. Torque arms are only permitted on cars that were originally equipped from factory with it. Upper and Lower control arms must be mounted in the factory chassis locations - S Box permitted

TIRES:
All cars with power adder must compete on a Drag Radial type tire with the following sidewall designation 275/60/15. Naturally aspirated cars are permitted to run a 28.0" x 10.5" slick, no "W" tires permitted.

*Minimum base Weights:
*All minimum weights include the driver.

Naturally Aspirated (small block) 2500 lbs
Naturally Aspirated (big block) 2800 lbs

Nitrous (small block) 2900 lbs
Nitrous (big block with conventional head) 3250 lbs
****Nitrous (big block with conventional head) 3050 lbs Single bar plate only
Nitrous (big block with conventional head) 3500 lbs or heavier are allowed a single bar plate and fogger
Nitrous (big block non conventional head) 3350 lbs

Single YSI/F1A/6-71 Supercharger (small block) 2950 lbs
Single F1C/8-71 Supercharger (small block) 3100 lbs
Single F1R/Xi/10-71 Supercharger (small block) 3300 lbs
Single F1X Supercharger (small block) 3350 lbs
Single F2 Supercharger (small block) 3400 lbs with reducer of 3.875
Single Super charged combo F1R/Xi 10-71 (Big Block) 3350 lbs
Single Super charged combo F2 or equivalent (Big Block) 3400 lbs must have reducer of 3.875
* Belt driven supercharger deduct 50 lbs.

*No Methanol cooling on blower or turbo combos running E85 or alcohol
 
Single 76mm T6 Turbocharger (mid frame) (small block) 2900 lbs.
Single 80mm T6 Turbocharger (mid frame) (small block) 3000 lbs.
Single 85mm T6 Turbocharger (mid frame) (small block) 3050 lbs.
Single 88mm T6 Turbocharger (Y2K or GT47-88) (mid frame) (small block) 3100 lbs
Single 85mm T6 Turbocharger (Pro Mod 85) (mid frame) (small block) 3150 lbs.
Single 88mm T6 Turbocharger (GT55-88, Pro Mod 88, etc or =) (small block) 3250 lbs. Single 88mm T6 Turbocharger (*Large Frame 85) (small block) 3250 lbs
Single 88mm T6 Turbocharger (*Large Frame 88) (small block) 3350 lbs
* Large Frame Turbo with billet wheel: add 50 lbs.


* Any turbo Measuring bigger than 88mm inlet MUST HAVE A REDUCER...measuring point .250 from impeller

* Big Block Combo Non Conventional head limited to a single fogger with 36 Nitrous jetting at minimum weight 3350 lbs.

* Big Block combo conventional head weighing 3500 lbs. or greater, will be allowed a single bar plate system with max. 73 Nitrous jetting, 1 fuel solenoids, 1 NOS solenoids in conjuction with the fogger.

* Small Blocks with single stage nitrous system: deduct 50 lbs

* Small Blocks (NOS only) with 23 degree Chevy heads, 20 degree Ford heads, and 18 degree Mopar heads: deduct 100 lbs.

* Small Block combo with tunnel ram/sheet metal intakes, 2 carburetors/2 throttle bodies add 50 lbs.

* Non-Intercooled boosted cars: deduct 50 lbs.

* Any belt driven superchargers: minus 50 lbs.

* Aftermarket rear suspension (Ladder bar), 4- Link susp: add 50 lbs.
Small block combo with ladder bars, BOP, NA combos, do not adhere to 50 lb. weight
penalty

* Buick/Olds/Pontiac Nitrous combos will be 3150 lbs. and not exceed 600 cu inches

* V-6 Turbocharged/Supercharged/Nitrous combos will deduct 150 lbs. from base weight

* Inline 6 clynder turbocharge/supercharge/nitrous combos: Deduct 300 lbs. off base weight

* Max 88mm Inlet turbo on Big Block Conventional heads only 3350 lbs.
 
#20 ·
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