help please

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help please

Post  williams_11 on Mon Feb 14, 2011 5:28 am

iv just bought a kr engine, i know theres two different 1s, 1 with a cat that has 126bhp and the older 1 that has 136bhp, now i can only see to things different the cat and the air box is smaller, does any1 no why else it has less bhp or is that it cheers

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Re: help please

Post  Crease! on Mon Feb 14, 2011 7:30 am

i dont know much about those engines tbh, but from what u have said
the one with less power has a smaller airbox and cat
the one with more power has bigger airbox and no cat ( i presume)

that said, surely the airbox is restricting the airflow into the engine and the cat is restricting the exhaust gases out, thus restricting the power?

just a thought tho
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Re: help please

Post  the grater golf on Mon Feb 14, 2011 8:53 am

yer what he said and also the earlyer 1 has a larger intake manifold and has a more harsher mapped ignition ecu
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Re: help please

Post  Crease! on Mon Feb 14, 2011 9:04 am

there we go then, sorted!!
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Re: help please

Post  williams_11 on Mon Feb 14, 2011 9:17 am

cheers guys

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Re: help please

Post  G4Z on Tue Feb 15, 2011 4:06 am

harsher mapping FTW!!!!

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Re: help please

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