Grand National and GNX History (part 3 of 3)
Buick quietly re-entered the super car wars in the late eighties with a turbocharged 3.8 liter V6 engine in an all black Regal. The car was so outrageously fast that its now among the most collectible cars of all time.
Grand National and GNX History (part 1 of 3)
Buick quietly re-entered the supercar wars in the late eighties with a turbocharged 3.8 liter V6 engine in an all black Regal. The car was so outrageously fast that its now among the most collectible cars of all time.
Viper vs Grand National
Viper vs Grand National Novi2000 with fuel upgrades. Otherwise stock and on 20" Nitto INVO's and a 6 speed manual. street driven car Grand National. Built Motor, 67mm turbo, ET Streets, built/stalled 200R4
1987 Buick Grand National (GNX Clone Project 2008-2018) 0-60 in 3.5 seconds, burnout at end
UPDATED 2012: New Photos: http://www.gsnationals.com/GNHT2010.htm Auburn, Maine - Video taken Summer 2010 1987 Buick Regal Grand National / GNX CLONE Project - Sept 2010 Update No Shoes, No Alky, No Burnout Box, Stage, 4 PSI Boost Street Tires update Oct 21, 2010 1.806 60' --- Best ET 12.389 @ 108.95 mph --- Best MPH: 109.95 MPH 20#'s Boost, No Knock, 13.2 @ 105 mph on Cooper Cobra 235/60/15" Street Radials May 13, 2009 (and it wasn't even tuned), then over time more changes, as listed below. Purchased March 2008 with 88,000 miles STOCK - Original. As of Oct 2010 there is 103,881 miles, driven from Wisconsin to Kentucky; Wisconsin to NC, SC, Georgia 2008; Wisconsin to Kentucky to Maine to Wisconsin 2009, Wisconsin to Maine 2010, and Maine to Kentucky Oct 20-23, 2010. Past 2.5 yrs, I've DRIVEN 16,000 miles in a 1987 Buick Regal Grand National with over 100k miles!!! and "No Brakes & a Bad turbo" when I bought it in 2008... this is my 2nd 87 Buick Grand National (and modified) --- my 1st GN is an ORIGINAL T-Top with 38,xxx miles, ATR 2.5" Pitbull Stainless Steel Dual Exhaust, Torque Strap, Front & Rear Brace Kit Package, RJC Power Plate. June 2008 - July 2009 Updates & Modifications: GNX Clone is Modified with bolt on parts, unopened engine - 3" Front Mount Intercooler, 3" Downpipe with External Wastegate/Boost Controller, 3" Stainless Steel True Dual Exhaust, TA 49 turbo, F-Body Alum Radiator with Dual Fans, RJC Power Plate, Adjustable Fuel Pressure Regulator (43 PSI line off) with FP gauge, Scanmaster, A-Pillar Boost & Knock Gauges, turboTweak 93 Chip with 60# Injectors, 3" Aluminum MAF Pipe, 9" K&N Cone Air Filter, XP Plus Fuel Pump, 160 thermostat, torque strap, Vacuum Brakes with Billet Block. HRpartsNstuff Rear Sway Bar, Lower & Upper Double Adjustable Control Arms, Air Bags, Front & Rear Brace Kit. NOS L/R Headlight Bezels, Grey Leather Steering Wheel w/Billet Buick Tri-Shield/Horn Cap, New Shocks, Rotors, Bearings, Brembo Brakes, 30% Side & Rear Window Tint . May 2009 Video Walk Around - http://www.youtube.com/watch?v=aqqndU8sbJs August 2009 - April 2010 --- Parked - in storage... May 2010 - Modifications: Front & Rear Bumper Fillers replaced, Drive Shaft Safety Loop, GNX Accents installed, 4 - 245/50/16" Tires GNX Kirban Style Reproduction 16x8 Rims GNX Dash Plaque #487, GNX Rear Differential Cover, GNX Front & Rear Emblems, GNX Headrests, GNX ASC Stickers, under hood & door jamb, No rpo "T2L" code GNX turbo Cover, GNX Flares & GNX Vents in Storage... (not sure I'll cut it up) GNX 6 Gauge Stewart Warner Gauges and Paint planned for next year. GNX Rear Suspension 1987 can't compare to HRpartsNstuff Suspension of 2009... New Windshield after I was stopped in New York late at Night 82 mph in 65 mph, after being pulled over and the officer checked my car out front to back, he saw my cracked windshield and gave me warning to repair crack, whew... thank you... $199 replaced, no speeding ticket, no insurance adjustment... must be problem with my cruise, becuz I dislike to follow or often speed up to catch up to the people in front of me...maybe you do too... haha! September 2010 - Modifications: Updated NGK UR5 Spark Plugs gapped tight at .030, new ignition coil pack, new spark plug wires, LS1-3" MAF with Translator after shooting this video, Fuel Feeder/Hot Wire Kit, heated O2 sensor. Stainless Steel Cat. Exhaust Hanger, Translator Base Setting = 5. OCTOBER 2, 2010 ---- SCANMASTER RESULTS after road trip, taken at idle. 02 = 792 (best tuned .750 - .770 -- leaner is meaner w/out knock, higher is safer) AF = 4 (air/fuel best 4-6) L8 = 30 (engine load = 30-40) bat = 13.7 (battery 13.5 or higher) INT = 128 (integrator 118 - 138, ideally 128) blm = 126 (block learn lean side 118 - 138, rich side, ideally 128) mph = 0 CLT = 170 (coolant) ATS = 124 (air temp) r = 800 (rpm) TPS = .44 (throttle position sensor 0.42 - 0.44, WOT = 4.6 - 4.8) IAC = 21 (idle air control 10- 40 good at idle, best at under 30) fuel pressure 37-43 with line off car at idle in park. start at 43, stock 34-40 line off Oil Pressure 10-15 PSI HOT O2 of .790 or higher prevents excessive retard. at Race Track Tune for best MPH, ET Varies with traction NOTE: time slips in the quarter mile will be updated by October 26th, 2010 at the GS Nationals - Bowling Green, Kentucky 2010 --- GS Nationals - October 20-23, 2010. HRpartsNstuff, GBodyParts, RJC Racing, Kirban Performance, Cotton Performance, turboBuick.com, Full Throttle Speed, GN1 Performance, NOS4GN, Red Armstrong - Quad Air. Here is link/history for my original 87 Buick Grand National - GARAGE QUEEN w/38k miles. http://www.gnregistry.org/BGN00001A_BDA.htm