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does ignition timing effect boost pressure?

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Old Feb 6, 2011 | 07:29 PM
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Default does ignition timing effect boost pressure?

As above really, have done my cambelt, and the car is running great. But before i was boosting to 17psi (i have a PP chip) now its only 15psi?

Could this be due to the timing being slightly out? Or do you reackon ive got a split pipe somewhere?
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Old Feb 6, 2011 | 08:00 PM
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if the timing was out you would have more than just boost problem but for peace and mind take the cambelt covers off and have a look
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Old Feb 6, 2011 | 09:27 PM
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Originally Posted by musso2010
As above really, have done my cambelt, and the car is running great. But before i was boosting to 17psi (i have a PP chip) now its only 15psi?

Could this be due to the timing being slightly out? Or do you reackon ive got a split pipe somewhere?
cam timing and ignition timing are not the same thing, as per your other thread, is you cam timing now correct?.
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Old Feb 6, 2011 | 10:20 PM
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As above check it again
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Old Feb 7, 2011 | 01:28 PM
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My cam timing is fine, am still a tooth out on the passenger side, but that is unavoidable... Car is running better than ever, im just 2psi down on boost now...
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Old Feb 7, 2011 | 03:06 PM
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If your timing is one tooth out on the passenger side, then you will need to rectify this as it is not right & it could be affecting your boost pressure.
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Old Feb 7, 2011 | 03:21 PM
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It would be impossible for me to get it exactly dead on the lines. All the top lines line up, and the 3 and 9 o'clock. Its the double lines that are not lining up properly. Id say i was half a tooth out. I will have another look.
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Old Feb 7, 2011 | 03:41 PM
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They are always a tiny bit off, maybe even up to half a tooth, but if as you said earlyier it's a whole tooth, then you would need to sort this.
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Old Feb 7, 2011 | 03:41 PM
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I will double check it mate.
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Old Feb 7, 2011 | 03:43 PM
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we want the tooth, the whole tooth and nothing but the tooth,,,,,,,,,,


sorry someonw had to say it lol
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Old Feb 7, 2011 | 03:47 PM
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Haha, i was expecting something like that eventually haha thats made my day!
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