Austin Racing GP1

Discussion in 'Parts, Accessories & Clothing' started by SimonT, May 11, 2015.

  1. SimonT

    SimonT New Member

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    Despite best endeavors I'm not going to get the pipe through Castle Combe's uber rigid sound testing so up for sale so I can get something a little quieter.

    The build quality is spot on and it's only a fraction of the weight of the OE pipe. Sounds great but a little too loud for Castle Combe, though it will pass "normal" track day testing. Made from Inconel so cools really quickly to hand touch in a couple of minutes.

    It's basically as new with ZERO miles on it. Its done a sound test at Castle Combe (taken by trailer) and three or four runs in the garage.

    Includes the pipe (probably the easiest pipe I have ever fitted), two baffles and two link pipe inserts depending on how quiet you want it. List price would be £870.00 including the additional baffles. Looking for £670.00 for what is basically a brand new pipe.

    Cheers Simon

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  2. bash1k

    bash1k Active Member

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    What was the lowest DB reading you got Simon? I love the GP1 but I would need it for track too!
     
    #2 bash1k, May 11, 2015
    Last edited: May 11, 2015
  3. SimonT

    SimonT New Member

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    Kingfixer kindly leant me his db meter so will give it a proper test tomorrow. AR claim 102 - 103db at 5500rpm.
     
  4. Cbrjay

    Cbrjay Well-Known Member

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    Could u not repack the can or add baffle?
     
  5. bash1k

    bash1k Active Member

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    Ok mate keep me posted
     
  6. SimonT

    SimonT New Member

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    Yes but I don't think there is anything I could do to get it passed at Castle Doom. I am sure it would be fine at most other tracks but it seems daft having a track so close that I can't use.....
     
  7. bash1k

    bash1k Active Member

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    What was the DB reading at castle?
     
  8. Cbrjay

    Cbrjay Well-Known Member

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    What's the noise limit there?
     
  9. SimonT

    SimonT New Member

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    Castle Doom static test at 3/4 max revs so for a blade that's 9750rpm and it was 116db.

    This is almost double the rpm used at ALL other track static tests. I was so pissed off I forgot to ask them if they would do a 5500rpm test.

    Obviously the db at 5500rpm is going to be significantly lower. I'm going to check tomorrow.
     
  10. SimonT

    SimonT New Member

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    Ran a quick test today......all at 5500rpm and 0.5m

    103db with the squashed baffle

    104db with the standard baffle

    108db with no baffle

    Also have a 35mm insert for the link pipe but haven't tried that.

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  11. RepsolSam

    RepsolSam Well-Known Member

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  12. SimonT

    SimonT New Member

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    That's the one - though they have added a slight design kink where the end can joins the pipe - looks much better than the AR website.
     
  13. RepsolSam

    RepsolSam Well-Known Member

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    Would you consider £500? (not eve sure why i am making an offer, still recovering from a broken leg ;-)
     
  14. SimonT

    SimonT New Member

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    [QUOTE="RepsolSam, post: 370764, member: 2426" still recovering from a broken leg ;-)[/QUOTE]

    Ouch - well I paid £870 only a couple of weeks ago so its as new so I was hoping for a little more to be honest.

    Hope you heal up soon.
     
  15. RepsolSam

    RepsolSam Well-Known Member

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    No worries, watch out for the eBay / PayPal fees.. They will leave you with allot less.
     

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