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johnc

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Posts posted by johnc

  1. Your old Datsun expert is mistaken.  Lots of R180s get serviced with new bearings.  Your noise issue is more likely with the ring and pinion then the bearings.  It would be a good idea to completely service the diff including preload, engagement, and backlash adjustment.  You should also check your diff mounts.

  2. There are good and bad undercoating materials. Now that I'm working on vintage Porsches (which were under coated from the factory) I see how proper undercoating can preserve a chassis.

     

    Nothing from a spray can is effective over the long term because its thinned and diluted with carriers to make it sprayable from a can. We use Wurth Stoneguard which also requires their spray gun or any spray gun that can handle high viscosity material. We shoot it at 60 to 80psi.

  3. It takes about 10 to 15 years for hard core engine development expertise on a specific engine to become generally available in the public domain. Until then that knowledge is thought to be still worth enough to be kept for paying customers.

     

    For your research finding one of those paying customers from 10 years ago would be your best source.

  4. There has been a lot of development here in the US on the VG30DET.  That engine was used as an early base for Nissan's LMP2 race engine program.  I saw one built by Sunbelt on the dyno back in 2001.  With two 25mm restrictors it made 435hp and 450 ft. lbs. of torque.

  5. On Monday the crew chief makes a list of things that need to be done to the race car and then prioritizes that list based on:

     

    1. Safety.

    2. Reliability.

    3. Repeat ability.

    4. Speed.

     

    The list gets worked until the car gets loaded on the trailer Wednesday or Thursday. The list gets reprioritized after the first session the track to:

     

    1. Speed.

  6. Yup, saw Wilkins video earlier. If you autocross or race your car, then the stub axle is an inspection item and will need to be replaced on a schedule or at the first sign of pitting or cracking at the fusion weld. I've broken 2. One at an autocross which wasnt a big deal and one at Buttonwillow which almost became a big deal. A worn brake drum kept the wheel on the car after the flange broke in a 70mph corner. If you're running rear disks the wheel will stay in place but the wheel and tire will lock up, which is what happened to Wilkins. With drum brakes the wheel generally leaves the car.

     

    As you can see, there's no warning when the failure occurs and it always happens in a corner.

  7. No you do not. It's voluntary. They will pressure you but just ask the officer if you are under arrest. If he says no then ask him if you are free to go. He will argue a bit but just keep asking that question. Works at sobriety checkpoints too.

  8. If you are in one of the counties in CA that meet air quality standards (Mono, Inyo, etc.) then you are only subject to a transfer of ownership smog inspection.  But ALL vehicles registered anywhere in the state of CA are required to comply with ALL the smog regulations applicable to the model year of manufacture.  The only exception are various exemptions for inspections.  At any time a cop or BAR rep can order any vehicle to get a smog inspection with 10 to 14 days.

     

    BTW... its not that difficult to do a smog legal engine swap.  LS and LT1s in the S30s are pretty easy.

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