Geo Storm Circle/Dirt track racing tips.

----this pages is constantly updated.

Suspension

• KYBGR2 struts - don't waste time with Monroe are Gabriel replacement struts. The KYBs are worth their price tag.
  
  
• Since you have to have stock springs, you might consider heating them up and re-bending them to sit lower. Just remember that this will weaken them, so don't jump any speedbumps.
  -If you have the cash, get a stock looking replacement set from SpringWorks:
  http://www.springworks.com/auto-coil-spring-order.html
  
  
• Swap on the GSi rear crossmember and swaybar--it is a direct swap and look completely stock.
  
  
• -modify the endlinks on the swaybars to help preload the wheels for the turns.
  
  
• Adjust negative camber to max as stated in rules.
  
  
• -Wheel spacers - will widen the stance. You might experiment with just having the spacers on one side of the car, or diagonal wheels.
  
  
• Tires, tires, tires....get the good ones...

Engine

• Replace the plug wires if they are old, you do not want to have a misfire at high revs
  
  
• Advance timing a couple more degrees & increase octane to compensate for detonation.
  
  
• replace all of the grounding wires in the engine bay with HEAVY DUTY copper wires and run a nice thick grounding wire to the ECM case.
  
  
• 3angle valve job - bring the head back up to spec with a good, clean seal.
  
  
• Port the head, intake plenum, Exhaust manifold
  
  
• Phenolic or Teflon spacers between the intake manifold and the head.
  
  
• Increase the compression ratio by:
  • -Shave the head
  • -Deck the block
  • -Overbore pistons
  • -SOHC: swap in the 1.6L DOHC pistons
  • -Custom pistons with an overbore and increased Compression ratio.
  • -installing longer spark plugs or boring the spark plug hole so the stock spark plug sits deeper into the chamber, increasing the compression ratio.
  
  
  
• Cams:
  • SOHC - -if you don't already have one, get a 93 Base Storm Cam. It has a different profile that produces more torque-which is good for quicker acceleration out of the turns.
  • DOHC - Swap on the 1.8L cams or the 89 IMark RS cams if you have a DOHC engine.
  • -If you have the cash, get a custom Cam grind.

Drivetrain

• Swap on the GSi Axles. The passenger side has a halfshaft, which helps reduce torquesteer.
  
  
• Swap in the GSi Transmission, it has a shorter gear ratio and allow for higher revs in lower gears
  
  
• Limited Slip Differential (LSD):
  • Phantom grip LSD--should help out on a dirt track with less traction available
  • If you have the Cash, get a Quaife LSD. It is probably the best upgrade you could do to your car.
  
  
  
• Brake pads-get a good set, EBC and Hawk are very good brands.