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  1. #1051
    Activ8's Avatar Moderator
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    Quote Originally Posted by regcheeseman View Post
    You had a spare wastegate that you had hacked into?
    Yes I have one. Cut the top off and changed the spring (I think to 14psi) cannot remember. Need to find it.
    Quote Originally Posted by regcheeseman View Post
    Had a thought last night - moment of clarity - when you were talking about using an MBC, you meant to have it paralleled with the N75 to create an additional control signal. I was thinking you were trying to use it to modify the boost pressure I'm using to hold the wastegate shut - hence why I couldn't see how it would work.
    Yes both together.
    Quote Originally Posted by regcheeseman View Post
    I need to get a fixed preload on my wastegate because at the moment the turbo cannot make boost properly with a wastegate slightly open, it cannot close that wastegate until it starts to make boost = catch 22.
    Spray some EGR cleaner into the side port to decoke the chamber. I think its just coked up a little and needs to be run. If the pressure from the manifold is equal to the pressure applied to the top port then the pre-load is the spring (10-11psi). The N75 control boost is operating the valve over the preload value. What's needed is a logrun to 1) to check the N75 duty cycle and the pressures at which it has applied control to 2) to check the range of the N75 duty cycle 3) identify areas of the boost that are over target / under target 4) identify improvement in the boost pattern to limit faults and limp mode 5) possibly remap the N75 map to broaden the duty cycle tolerance.
    Quote Originally Posted by regcheeseman View Post
    Meanwhile.....wheels are being collected by courier today and there's a dyno day next Saturday (28th) at a mates garage - planning to go and get some figures.
    Good news about the wheels - your audience awaits. Love your build and the humorous detailed journey you've shared. An RR day will be a good datum point for advancing your project.



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  2. #1052
    rjhoy02's Avatar Privileged
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    Quote Originally Posted by Activ8 View Post
    Yes I have one. Cut the top off and changed the spring (I think to 14psi) cannot remember. Need to find it.

    Yes both together.

    Spray some EGR cleaner into the side port to decoke the chamber. I think its just coked up a little and needs to be run. If the pressure from the manifold is equal to the pressure applied to the top port then the pre-load is the spring (10-11psi). The N75 control boost is operating the valve over the preload value. What's needed is a logrun to 1) to check the N75 duty cycle and the pressures at which it has applied control to 2) to check the range of the N75 duty cycle 3) identify areas of the boost that are over target / under target 4) identify improvement in the boost pattern to limit faults and limp mode 5) possibly remap the N75 map to broaden the duty cycle tolerance.

    Good news about the wheels - your audience awaits. Love your build and the humorous detailed journey you've shared. An RR day will be a good datum point for advancing your project.



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    Can't wait to see your new wheels Reg

    Sent from my vernee_M5 using Tapatalk

  3. #1053
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    Quote Originally Posted by rjhoy02 View Post
    Can't wait to see your new wheels Reg

    Sent from my vernee_M5 using Tapatalk
    Just between you & I, Reg sent me a preview.... he's erhermmm moving away from the "gay orange" look to something with more character & definition....


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  4. #1054
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    Quote Originally Posted by Activ8 View Post
    Just between you & I, Reg sent me a preview.... he's erhermmm moving away from the "gay orange" look to something with more character & definition....


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    So not these then?

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  5. #1055
    S49's Avatar Privileged
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    Lets have less cock and bull stories please

  6. #1056
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    Quote Originally Posted by Activ8 View Post
    Just between you & I, Reg sent me a preview.... he's erhermmm moving away from the "gay orange" look to something with more character & definition....
    Obviously not for me but I don't hate them - would look good on sarah's nemo.

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    Activ8 (18th April 2018)

  8. #1057
    Activ8's Avatar Moderator
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    Quote Originally Posted by rjhoy02 View Post
    So not these then?

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    That's his spare!

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  9. #1058
    Activ8's Avatar Moderator
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    Quote Originally Posted by regcheeseman View Post
    Obviously not for me but I don't hate them - would look good on sarah's nemo.
    True

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  10. #1059
    S49's Avatar Privileged
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    Made for it.

  11. #1060
    rjhoy02's Avatar Privileged
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    Quote Originally Posted by Activ8 View Post
    True

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    Very true. What about it Sarah?

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