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#1628309 - 02/01/2019 21:17 Cylinder head work
patadaturbo Offline
Discoverer

Registered: 29/12/2011
Posts: 43
Loc: spain
Hi guys. We know the benefits of cylinder head work. Can it give a good increase in power?
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20vt forever

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#1628312 - 02/01/2019 22:34 Re: Cylinder head work [Re: patadaturbo]
kj16v Offline
My life on the forum

Registered: 12/02/2008
Posts: 1706
Loc: London
"Headwork" covers quite a wide range of work; from polishing the ports a bit, through to gas-flow work and fitting enlarged valves.

If you mean just polishing the ports yourself, then go ahead! Won't make much difference but it won't hurt either and it's a good experience to have a go yourself.

If you mean professional porting / gas flowing then it's about value for money. A well flowed head is always beneficial, but it becomes more beneficial the more power you are aiming for. Both the 16VT and 20VT can make well over 400 bhp without any headwork. However, if you are aiming for figures above 500 bhp then headwork begins to become essential.

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#1628313 - 02/01/2019 23:07 Re: Cylinder head work [Re: patadaturbo]
patadaturbo Offline
Discoverer

Registered: 29/12/2011
Posts: 43
Loc: spain
then just a good polishing (and take 1 mm of material per side) does not make much difference in an engine of about 300-350hp??
 


Edited by patadaturbo (02/01/2019 23:09)
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