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vr6turbo

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Posts posted by vr6turbo

  6. home made vsr schrick manifold

    in Engine Tuning

    Posted

    thanks guys the info is great a bit over my head

    I think its going to be a long haul though

    so bear with me

    stage 1 get a stock manifold and cut it open

    separate 123 and 456 cylinders along the length of the manifold up to the throttle body

    then get  an electric or vacuum flap to separate the two banks

    I am sure this is how the VSR works

    had a chat with my guru at work and he thinks it will operate fine

    because the firing order is 153642 only one cylinder is firing on each of the 2 banks at any one time

  8. home made vsr schrick manifold

    in Engine Tuning

    Posted

    been looking at making my own vsr manifold from a stock one. :wacko:

     

    I work with a guy who has years of engine tuning and is a real boffin when it comes to tuning

    we have been looking at how exactly the vsr manifold works, mechanically.

     

    has anyone ever stripped the internal flap out of the  schrick/vsr  manifold for maintenance.

    or has any photos of how the flap functions internally.

     

    I have a feeling it splits the plenum chamber in 2 so you have 3 and 3 cylinders on each side when the flap is closed

    and the full width when open

     

    can anyone add to the topic even if they see pitfalls I don't

    welding is not a problem as the lads at work are wizards with the TIG welder

     

     

  14. fuel feed

    in Engine Maintenance and Problems

    Posted

    Had the same problem along time ago

    there may be some crap in the tank

    when the pump starts up it gets sucked on to the fuel pump strainer which blocks the pump

    when the pump stops the crap falls back from the strainer into the recess in the tank 

    so the cycle begins 

    take the pump out and have a look with a torch into the tank

    without a fag in your gob if you smoke

     

    or the pump is not suitable and is overloaded

  17. vr6 12v variable valve timing

    in Engine Maintenance and Problems

    Posted · Edited by vr6turbo

    very nice indeed

    that is a late vr6 ecu

     

    in answer to your question I have changed both and fitted a new bosch cam sensor, and I have an obd1 engine with duplex chains.

     

     The double cam cog accepts the sensor ring perfectly and is lined up exactly the same as on the obd2 cam, I checked

    I have used the  obd1 top cam housing and the clearance between the sensor and the sensor ring looks good

    so it should all work fine

     

    there is no difference between the obd1 and obd2 engine apart from the top timing chain and tensioners chain guide and upper timing cover

    I am using the obd2 throttle body, injectors, engine loom, and all obd2 sensors

     

    there are 3 other options as I see it

     

    the wiring

     

    the timing is off

     

    the gap between the sensor and sensor wheel

     

     

     

     

     

    I am going to check for a fluctuating signal from the sensor ,recheck the wiring,

    if that does not work recheck the timing again,

    the only other concern

    is the gap between the sensor and ring correct any one know what it should be?

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