• The site migration is complete! Hopefully everything transferred properly from the multiple decades old software we were using before. If you notice any issues please let me know, thanks! Also, I'm still working on things like chatbox, etc so hopefully those will be working in the next week or two.

Recent content by Jkotsi

  1. J

    Gearing change w/o tune

    I have been reading through past posts on gear changes but have not found an answer. I am racing a 2004 Grand Prix on a 1/3 mile dirt track. The rpm through a race seems low never exceeding 4800. The easy option is to try small diameter tires with a reduced contact patch. The other option...
  2. J

    HPT Pro vs Std

    I am looking at HP Tuner and haven't decided on Pro vs Standard, is the Pro worth the $150 premium? It will be used on a 2004 GP and a 01-05 Monte both NA with limited engine mods. The cars will be used for dirt track racing. Cheers Jim
  3. J

    Front exhaust manifold replacement

    I haven't seen anything posted so I'll ask here, is there a better GM produced exhaust manifold that could replace the stock 2004 GT unit? PLog and headers can't be used. Modifying the restriction out of the stock manifold looks to be a challenge. Was was hoping a newer model dealt with this...
  4. J

    Changing brake bias?

    I am hoping this will change the brake http://rs38.pbsrc.com/albums/e114/jkotsi/Mobile%20Uploads/image_zps2ehcwbgj.jpg?w=480&h=480&fit=clip Removed 50% of the pad surface from the FL and 60% from the FR. Looking to improve the left turns for dirt tracking. Not concerned with a short pad...
  5. J

    Dirt Track

    I should have posted here, a link to last weekends race below: https://m.youtube.com/watch?feature=youtu.be&v=eQgv7fKPtFU It is the Junior Stinger class from Brighton Speedway Sat Aug 20h. The majority of the cars are Grand Prix's so the racing is very close. The class is limited to V6 FWD...
  6. J

    Swapping water pump pulley?

    I am looking at swapping the water pump and alt pulley to a larger diameter. Any recommendations? cheers Jim
  7. J

    RJ's Dirt Track GP

    Ray and I (Jim) have started prepping a GP for some fun on a 1/3 mile dirt oval for next summer. This will be a real budget build. The GP has a solid body, it's a 2004. Engine has a few issues, leaking water pump, 3/6 coil and possible power steering pump leak. Sounds good, starts easily...
  8. J

    shop manual pdf 2004

    Is there a manual available for downloading for the 2004 Grand Prix? Cheers Jim
  9. J

    2004 GP on the track

    Hello, two new Grand Prix owners, Ray (in the hat) and Jim, looking to race this 2004 GT1 on a 1/3 mile dirt oval at Brighton Speedway next summer. It won't be pretty but it should be a lot of fun. We are planning on doing as much our selves as possible, it may be cheaper not doing jobs twice...
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