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  1. #1
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    Camshaft advice needed

    New poster! (less than 10 posts)

    I'm currently trying to get a bit more power. I'm changing to a small hybrid turbo (I think it's a KTR 180) and I'm planning on running about 16psi. I'm not sure whether to get a piper 270 or catcam 5500320. They're both have a similar profile. Can anyone on here recommend one as opposed to the other? With running just 16psi are either of the two cams above going produce a noticeable difference to the standard cam? cheers.

  2. #2
    Non-member Mart's Avatar
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    Re: Camshaft advice needed

    Not really. Those cams will push the power-band up the rpm scale, albeit not substantially, but either way it isn't gonna help you with a small ish (read restrictive) back-end of that turbo in situ.

    Imho, either keep the cam o.e, or fit a larger blower...but then if you do that, I'd also be looking at a hotter cam than a 270; more like a 285, rt200, etc.

  3. #3
    Non-member Andrew Cooke's Avatar
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    Re: Camshaft advice needed

    https://www.rtoc.org/cam/?cam=Cat+550...vance=0&vc=0.2

    the catcam is a lot hotter than the Piper 270, it's nearer to the piper 285. As Mart said, save your money and keep the standard cam.

  4. #4
    Non-member Nayls's Avatar
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    Re: Camshaft advice needed

    Has anyone ever ran 0.3mm clearences?

    my cam sheet say's it's what mine must be!

  5. #5
    Non-member Mart's Avatar
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    Re: Camshaft advice needed

    Yep, on my old rt200, exhaust side.

  6. #6
    Non-member Nayls's Avatar
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    Re: Camshaft advice needed

    Quote Originally Posted by Mart View Post
    Yep, on my old rt200, exhaust side.
    only exhaust? mine state's it for both

  7. #7
    Non-member i l k e r's Avatar
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    Re: Camshaft advice needed

    .25 inlet, .30 exhaust on my RT200

  8. #8
    Non-member Mart's Avatar
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    Re: Camshaft advice needed

    Quote Originally Posted by i l k e r View Post
    .25 inlet, .30 exhaust on my RT200

  9. #9
    Non-member Andrew Cooke's Avatar
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    Re: Camshaft advice needed

    Quote Originally Posted by Nayls View Post
    Has anyone ever ran 0.3mm clearences?

    my cam sheet say's it's what mine must be!
    mine's 0.4, just do what they say

  10. #10
    Non-member Nayls's Avatar
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    Re: Camshaft advice needed

    Quote Originally Posted by Andrew Cooke View Post
    mine's 0.4, just do what they say
    ok,will do

  11. #11
    Non-member Nick k's Avatar
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    Re: Camshaft advice needed

    Quote Originally Posted by Andrew Cooke View Post
    mine's 0.4, just do what they say
    Oh bugger!! just looked what my 270 piper cam clearances should be. It say 0.25 Inlet 0.30 Exhaust. Is this right?? Mine are set to standard at the mo!! Will it make much difference??

  12. #12
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    Re: Camshaft advice needed

    New poster! (less than 10 posts)

    So the ktr180 is too small for a noticeable gain? Hmm shame as it's been gathering dust for some time in my garage. So when I bought it I assumed that it would give me some lag free bhp. Is this not the case or can the right T25 be as effective? My 5 is a for track use only so I'm looking for blower which is immediatly responsive out of corners, how much money would I be looking at for decent T25 and piper 180 cam plus vernier and all the other bits? Is it really worth the outlay? Would I achieve 170bhp with KTR180 set at 16psi or is that over optimistic?

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