GMC SYCLONE PROTOTYPE 015

GMC Syclone Prototype #015 appears to be a converted S15 SLE and was used as a engineering truck. We believe this truck was donated to a church group, which then eventually raffled it off.

GMC Syclone Prototype #015

INTERIOR:
  • Center console is a yellow color, made out of a prototyping plastic
  • Has a standard S-Series 4-spoke steering wheel (non-leather wrapped)
  • Syclone seats with embroidered logo
  • The interior carpeting is still the 4×4 carpet, with the hole in the carpet for the 4×4 shifter.
  • It does not have the Sunbird Turbo dash, instead it has some other Pontiac dash.
  • It has a turbo gauge, tach, 140mph speedo, and all the other things.
  • SLE badge on the glovebox door

ENGINE:

The engine has been modified from PAS from its original form. It is believed that the intake, turbo, and intercooler have been replaced with semi ‘stock’ parts. The originals are believed to be in Marty McGuire’s possession. The engine is that of a stock Syclone, with a few exceptions:

  • The cam is slightly larger, the pistons are from a turbo 350, and the turbo is a Garret, instead of a Mitsubishi.
  • The intercooler is all custom-built by Garret.
  • The ECM sits in the glove box, and is entirely custom. It can be reprogrammed on the fly, using a laptop computer
  • The chip stores “defaults” and can be replaced

EXTERIOR:
  • Has PAS 001 written on the side windows and the front of the rear-view mirror.
  • The vehicle does not have any ground effects and has S-15 steel bumpers.
  • There is an estimated 350 lb weight welded to the rear bumper to keep the rear end down while pulling a Towing Dyno.
  • In the bed of the truck there is a gas cooler box. This cools the gas using NOS.
  • SLE badge on the cab
  • Production Syclone rims and center caps

DRIVETRAIN:
  • The transfer case came out of the AWD GMC Astro van, the front propshaft was developed at GKN in Auburn Hills, Michigan.
  • The front differential is not that of a Bravada, it is a normal 4×4 diff, that has had the shift mechanisms removed.