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Bob Forrest's 500HP 3000GT VR-4

"The Blue Beast"

 1st Place - 2003 NASA Season Championship, Class B           



            2nd Place - 2004 NASA Season Championship, Class B 

Currently in 1st Place    1st Place Win 051505    2005 - NASA Class A



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'91 
3000GT VR-4

1991 Mitsubishi 3000GT VR4 Twin Turbo, Jamaican Blue Metallic, purchased March, 2003.

Stock Features when purchased:
Includes AWD & AWS (all-wheel drive & all-wheel steering), electronically-controlled suspension, active aerodynamics.  The previous owner brought the car back to original spec, starting with a new motor...  The block was hottanked, cleaned and honed and decked, the heads work-surfaced, all surfaces machined and professionally rebuilt with new valves, new upgraded ACL bearings, rings and all new gaskets.  All new belts, tensioner, water pump, new plugs, wires, O2 sensors, fuel filter, resurfaced (two-step) stock flywheel.  The 5-speed transmission was rebuilt with all new Kormex synchros and bearings, then pulled apart a month later and an upgraded 18-spline Kormex output shaft was put in.

Power Modifications:
The new replacement stock turbos he had installed blew out on the first track day, and were replaced with 13C's, clipped 5 degrees.  To support the bigger turbos, there's an high-capacity 255lph Supra Fuel Pump (wired at full voltage).  I added RC 550cc injectors, A'pexi S-AFC-II Air/Fuel computer, Split Second ARM-1 fuel meter, Greddy Type-S Blow-Off Valve, TurboXS Dual stage Boost Controller, Greddy 60mm peak hold Boost and Oil Pressure Gauges in Greddy dual pillar pod...  K&N FIPK, RD Performance chrome Y-pipe...  Exhaust mods include a Borla 3" cat-back exhaust, ATR 3" downpipe, and RD Performance 3" high-flow cat.  To get the power to the wheels, new carrier bearings were installed on the propeller shaft, the tranny was rebuilt for extra track strength by TRE (TeamRip.com), who also installed a stronger VCU.  Power gets to the drive train via an RPS MAX Series 6-puck sprung-hub racing clutch.

Brakes, Suspension, Wheels/Tires...:
StopTech "big brake" upgrade (355mmx32mm [14"] custom rotors, StopTech [Ferrari F-40] Black Calipers), CarboTech PantherXP (Front) & Porterfield R4-S (Rear) racing brake pads, StopTech Stainless Steel brake lines and Motul 600 racing fluid.  3SX Performance polyurethane motor mounts, JIC FLT-A2 "Magic" racing suspension (lowered 1.5"F/2"R, set to full soft with no preload), coupled with Supercar Engineering Tender Springs, 3SX Performance Rear control Arms, TEC front strut tower bar, Saner rear sway bar.  Track tires are Gewalt 18x10 wheels w/ Toyo Proxes RA-1's 275/35ZR18, with 5mm spacers in front for a wider track.  Street tires are 18x9 SSR GT-1 wheels with Bridgestone S-03 Pole Position Potenza 245/40ZR18.  (Wheels shown in the photo above are the Gewalt 18x10's, with 265/35ZR18 Nitto Extreme Performance 450s).  Camber set to
-0.5 front, -1.0 rear.  Racing setup, corner-weighting, alignment, high-speed wheel balancing by: www.CustomAlignment.com

The 1991 3000GT VR4 was 300 HP, stock.  After mods, recent Dyno numbers are:
~409hp @  9psi w/91 octane pump gas.  (Note Car Number 409 - I lie about "What I've Got"!) :-)
~453hp @ 12psi w/92 octane pump gas.  (Normal 'low boost' setting).
~503hp @ 15psi w/100 octane race gas.  (Normal 'high boost' setting).
~551hp @ 17psi w/110 octane race gas.  (Heavy knock - not used until it can be re-tuned.)

NOTE:  Here's what happens when you use low-octane (or bad) gas without adjusting A/F settings:
~452hp @  8psi w/87 octane (mismarked 91) gas. --HEAVY-knock dangerous air-fuel settings - Datalog HERE

Top speeds just before red line (7000 RPM): 1st gear: 65MPH; 2nd gear: 95MPH; 3rd gear: 130MPH;
4th gear: 165MPH.   Estimated top speed, 5th gear: 192 MPH.
 


'Sears 
Point..., Finish Line
Crossing the finish line at Sears Point...  July, 2003




Below are a few photos from the various tracks where we race--
Laguna Seca, Sears Point (Infineon), Thunderhill, and Reno-Fernley.



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Kickin' some ass in the twisties...
Thunderhill Raceway, September, 2003



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Eating up on a race-prepped Porsche...  No problem.
Reno-Fernley Raceway, August, 2003



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Larger versions are not available...

A variety of snapshots from Laguna Seca and Sears Point...



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Click any image to see a larger version.

Playing with the big boys at Sears Point...  May, 2003.  It's hairpin turns like this
where AWD & AWS simply RULE!  ( That's "All-Wheel Drive" & "All-Wheel Steering", Chucko...! )
Here, my friend Terry is driving the VR-4.  He took the inside away from a $100k+ Viper, whose driver
had to slide it wide...  It looks like the Viper is taking off for a damned lunch break!



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Our red Stealth and blue 3000GT in a corner of the paddock, sandwiching Rick Pierce's red VR-4 ...
That's ET in her red & white Spec Miata, with her tail lights towards the camera.
Sears Point (Infineon) Raceway, June, 2003




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Our two 3S "Road Warriors" at the end of a long, exciting race weekend...
That's ET's Spec Miata getting loaded on to the trailer for the trip home.
Sears Point (Infineon) Raceway, June, 2003



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All Photos 1995-2005 Bob Forrest, All Rights Reserved.