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pitch black
07-08-2005, 11:09 PM
A few ideas to make cars more easily competitive in other racing organization. Looked at NMCA, PSCA, and a few smaller ones. I am currently building my car and would love to race TSO but if it doesn't meet the rules then so be it. No not all the changes pertain to my car, just a fresh set of eyes on what could grow to be a greater class than it already is. Changes in red.
General

Qualifying ET is 9.99 or quicker.
Heads-up .400 pro tree start and pro ladder.
Winner and runner-up are subject to re-weigh and re-tech immediately after final round or at any other time.
Entrants caught breaking the rules will be disqualified from the TSO class.
Chassis
Current NHRA certified seat restraints, helmet and fire suit required.
Car should be NHRA certified.
Car should possess all applicable safety equipment for potential ET/speeds attained.
Minimum car weight w/driver must be 3300 pounds.
Removable ballast is limited to 100 pounds maximum.
Stock wheelbase required (108.0" measured).
Engine/firewall must be in stock location. Non stock radiator supports allowed
Factory stock body lines/contours must be maintained (i.e. hood, doors, fenders, wheel openings, bumpers, trunk lid, etc). *** Non-factory rear stabilizer wings are allowed. max 10 inch from body transition
Any fiberglass or carbon fiber body panels, bumpers, etc. allowed, no hood scoops.
Complete, painted Buick Turbo Regal/Grand National body required.
Stock operating glass windows and windshield are required, no lexan.
Lights and horn must be operational.
Stock front inner wheel wells required. Trimming allowed for downpipe clearance. I believe this should be removed no need to retain or cut up turbo specific wheel wells and no gain but weight reduction
Full stock GM frame is required, no tube chassis cars are allowed.
Modifications to stock rear wheel wells allowed, mini-tubs are allowed, outer frame rails notching allowed, inner rails remain in the stock location.
Reinforcements at inner rear frame rails are allowed.
Stock style rear suspension or simple ladder bar ( possible weight penalty ) aftermarket 4 links not allowed.
Coil-over equipped rear suspension allowed.
Drive shaft safety loop required.
No restrictions on braking system, power or manual brakes are allowed.
Brake system line locks allowed.
Wheelie bars are allowed.
Parachutes are required for trap speeds in excess of 150 mph.
Engine
Any Buick V6 cylinder block allowed, no cubic inch displacement limits.
Any oil pan allowed, no dry sump oiling system allowed.
Any cylinder heads, allowed. weight penalty for stage 2 heads
Any intake manifold and plenum allowed.
Any size single stock or aftermarket throttle body allowed w/single throttle plate only.
Any single turbo header allowed
No restrictions on engine driven accessories; i.e. alternator, water pump, p/s, etc.
A/C and heating equipment may be removed.
Turbo, Downpipe & Intercooler
Any turbo allowed up to 88mm, large frame turbos have weight penalty A 4”maximum size downpipe is allowed w/ a 5" inlet/transition at the turbo reduced down to 4” 8 inch after flange. It must be routed inside frame No flex pipe allowed.
A 4”maximum size single or dual exhaust system is allowed. It must muffle and exit at least 4 feet from front tire ,away from the car, equal to the lower body line.
Any wastegate configuration allowed.
Any stock location or front mount air to air intercooler is allowed.
No liquid intercoolers, intercooler external spray cooling or add-on cold boxes allowed.
Engine Management & Fuel System
Battery may be in any location.
Any ECM/fuel management system is allowed w/ any onboard electronics are allowed.
Any air induction system allowed.
Stock fuel tank w/sump addition or fuel cell allowed.
Any fuel pump(s) configuration/location w/ any fuel lines allowed.
Any fuel rail(s) allowed.
Any type fuel pressure regulator allowed.
Any size fuel injectors allowed, no limit on number used.
Gasoline fuel only, no additives, alcohol, or nitrous oxide injection allowed.
Transmission
Any GM automatic transmission, 200-4R, TH400 w/ any torque converter allowed.
No Lenco, Liberty or manual transmissions with or without clutch allowed.
Differential
Any type stock width differential housing allowed, +/- 1" allowance w/ limited-slip differentials or spool allowed and any gear ratio allowed.
Wheels & Tires

Any matched set of four 15" diameter wheels allowed.
Slicks w/ sidewall designation up to a 29.5” x 11.50” -15” size tire w/ a maximum measured footprint of 11.25” is allowed, W tires are allowed.
*** Phoenix Brand 11.5”standard and W sidewall designation tires are not allowed do to tread width restrictions.
DOT street tires w/sidewall designations up to a 30.0” x 13.50”-15” size tire are allowed .
Interior

Stock dash must be retained with any gauges and any transmission shifter allowed.
A maximum of 2 hood mounted gauges allowed.
Car must have a fully carpeted floor board w/2 front seats, door panels, headliner, applicable interior trim, etc.
Rear seat may be removed; area must be carpeted to match interior color.

Take em for what there worth, Thanks for looking Lyle.

JCotton
07-09-2005, 06:48 AM
Lyle,

Pretty nice looking stuff there, that opens the door a little more and allows for a few more participants. I'm all for the weight penalties, now if we can come up with numbers that everyone can agree to...... Looks to me, some of those cars will be weighing pretty heavy. No doubt some discussion will ensue