I will post the Final Proposal being submitted to James West:
Turbo Street Outlaw – TSO (2006 Proposal)
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/IHRA certified seat restraints, helmet and fire suit required.
Chasis must be NHRA/IHRA certified.
Car should possess all applicable safety equipment for potential ET/speeds attained and pass track safety tech.
Minimum car weight w/driver must be 3,400 pounds with a 100# weight break for 82mm and smaller turbos and a 100# penalty for T05 flanged turbos
Removable ballast is limited to 100 pounds maximum.
Stock wheelbase required (108.0" measured +/- 1").
Engine/firewall must be in stock location.
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.
Any fiberglass or carbon fiber body panels, bumpers, etc. allowed, no hood scoops. No removable front ends.
Complete, painted Buick Turbo Regal/Grand National body required.
Stock operating glass windows and windshield are required, no lexan.
4Headlights and horn must be operational.
Stock front inner wheel wells required. Trimming allowed for downpipe clearance.
Full stock GM frame is required, no tube chassis cars are allowed.
Functional radiator required.
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 only, no ladder bars or aftermarket 4 links 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.
Any intake manifold and plenum allowed.
Any size single stock or aftermarket throttle body allowed w/single throttle plate only.
Any type of stock location headers & crossover allowed.
No restrictions on engine driven accessories; i.e. water pump, p/s, etc.
Functional alternator required.
A/C and heating equipment may be removed.
Turbo, Downpipe & Intercooler
Any single 3-bolt or 4-bolt turbo allowed with the turbo shaft in stock orientation and the turbo inlet flange within 2" of the stock location.
Turbo compressor size limited up to and including a mid-frame 88mm, large frame "Thumper" style turbos are not allowed.
A 4”maximum size, stock location downpipe is allowed w/ a 5" inlet/transition at the turbo reduced down to 4” immediately after the 90* elbow at the turbo exit. It must be routed down through the stock location. No flex pipe allowed.
A 4”maximum size single or dual exhaust system is allowed. It must muffle and exit at/behind the rear axle tube(s), 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.