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John Coffey

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Everything posted by John Coffey

  1. John Coffey

    Any ideas?

    John Coffey replied to Boomguy's topic in Help Me !!

    You're prepping for an event and having a debate on whether the transmission can be used? Pull it and replace it with a known good unit.
  2. John Coffey
    Floyd Link also worked with Ed Pink and Nissan in their VRH Indy race engine program.
  3. John Coffey
    Throw away that header. Get a Nissan Motorsports or Stahl with 1 5/8" primaries. Upgrade the exhaust to 2.5". A cam with more duration (around 270) will also help.
  4. John Coffey
    The Nissan Motorsports gasket worked extremely well in my years of racing. Its the one that has "Garlock" printed on it. Probably NLA. Next best is the OEM Nissan part and Permatex Ultra Copper helps a lot. Back in 1998 a group of racers ponied up and had a run of copper gaskets water jet cut. I had one and it work perfectly and was completely reusable. It went with a race engine I sold in 2004.
  5. John Coffey
    I'm shocked, shocked to hear that someone lied about a used car they were selling.
  6. John Coffey
    I've build a half-a-dozen rotisseries. This is the latest one for the Peking to Paris 240Z. It now has a 1966 911 on it. Two bars connecting the front and back make it more sturdy for transport via trailer or flat bed. You MUST ( as mentioned above) connect the front and back ends of the rotisserie or they ends can spread and the car can fall off.
  7. John Coffey
    There are no structures in the USDM cars but there might be support structures in the factory rally and competition cars. If you look under the interior trim at the C-pillar you'll find 4 threaded mounts for the factory racing roll bar. There are other structures in the basic chassis that are intended only for competition use and were built in on the assembly line.
  8. John Coffey
    Jack point or a locating point for the manufacturing process.
  9. John Coffey
    It doesn't matter. The bar ends will only touch the strut tube if both wheels got to full droop. 99% of the time that will only happen when you jack up the front of the car. It doesnt matter. Move on to more important thinks.
  10. John Coffey
    Look at the e-brake linkage above the driveshaft. If you see shiny spots then the front diff mount and diff strap are gone and the driveshaft is hitting the e-brake parts and the tunnel.
  11. John Coffey
    Sounds like a Comp box to me. although one that is not very desirable. Most racers want a direct drive 5th with the middle three gears much closer together. I might have a customer for it - we are building an endurance rally car for them.
  12. John Coffey
    Swepco 201 is the gold juice in the Porsche world for the 901 and 915 transmissions. In short order it ruined the synchros in my Nissan 4 speed after a day of racing at PIR.
  13. John Coffey
    Of course there's always this option - John Jeffries brought it to my attention. http://www.eliteracingtransmissions.com/products/datsun-240z-dog-gear-kit/
  14. John Coffey
    You might as well take it apart and measure everything. The gearing is what make a transmission a Competition box. Synchros are secondary. As mentioned there are steel Warner and Servo style synchros and I'm not smart enough to tell the difference without them in my hands. If they are the servo style then Porsche parts are readily available at Porsche prices. If you don't want to do the rebuild I can get the guys at Rancho to do it if it has the servo style. They do all our 741, 901, 915, and G50 boxes for us.
  15. John Coffey
    You should see less then 5% on each cylinder.
  16. John Coffey
    Drill it from the back side, not from inside the cup. Use a small bit to create a starter hole. Use lube. Go slow. You don't need to drill it oversize because the threaded rod pivots at the slave cylinder.
  17. John Coffey
    Just drill a hole in your existing clutch fork.
  18. John Coffey
    I ran the Toyo RA1s on my daily driver Contour SVT for 18,000 miles. Never an issue on the street, track, or autocross. On a S30 that weighs 700 pounds less they should last longer.
  19. John Coffey
    The car had VTec - Yo!
  20. John Coffey
    You have aftermarket ball and socket TC rod mounts on the car. Check them to make sure they are not worn or loose.
  21. John Coffey
    Not excessive at all.
  22. John Coffey

    R180

    John Coffey replied to terry's topic in RACING

    An open two pinion R180 can't handle much torque and will self destruct if you do a lot of one wheel burnouts. A R180 with a four pinion carrier, or a good LSD (Quaife, OS Giken, Nissan Motorsports, etc.) can handle about 275 ft. lbs. if you run a synthetic fluid like Redline 75W-140 and change it often.
  23. John Coffey
    Instead of a 5 point harness, get the Schroth Profi II ASM. Its a DOT approved four point that has the ASM clip that prevents submarining. Add the roll bar and a comfortable seat with built in should harness holes (the Cobra Daytona is a good one with a reclining mechanism) you've improved safety a bunch.
  24. John Coffey
    There's also Diamond Racing wheels. We put 15 x 6 Diamonds on the P2P 240Z. https://www.facebook.com/p2p240z/?fref=ts
  25. John Coffey
    The only way to possibly ensure your privacy on the Internet is to never go on the Internet. No Facebook, no email, no browsers, etc. Otherwise, assume its all out there for everyone to see.
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