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cvh big valve head ????

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Old 12-12-2010, 08:15 PM
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harveyrst
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Default cvh big valve head ????

ive got a s2 rst big valve head i had it done from standard and never got round to using it as the project had to go but ive still got the head could this head be used to do a zetec turbo would the efi inlet manifold bolt to it been that the head is mfi ?
Old 12-12-2010, 08:28 PM
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stembo21
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i think you should just sell it to me
Old 12-12-2010, 08:32 PM
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Originally Posted by stembo21
i think you should just sell it to me
lol it cost me £ 460 to get done had it bout 3 yrs now jus sat in my spare room
Old 12-12-2010, 08:40 PM
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Yeah mate you should be able to build a zvh and i think you can buy a adaptor plate so you can bolt the efi onto your head.
My brother has done this check out his thread Little brams S2
Old 12-12-2010, 08:44 PM
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i think you should just sell it to me
Old 12-12-2010, 08:45 PM
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got a s1 crosshatch bvh never used since it came from vulcans. supposed to be the best to tune ??
Old 12-12-2010, 08:47 PM
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Originally Posted by harveyrst
lol it cost me £ 460 to get done had it bout 3 yrs now jus sat in my spare room
Al swap you for a zvh bottom end 2.0
Old 12-12-2010, 08:58 PM
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Originally Posted by stembo21
Al swap you for a zvh bottom end 2.0
na ive allready got a 1.8 gti thinking bout turboing . thank s any way
if it was to go id want the cash
Old 12-12-2010, 09:00 PM
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Originally Posted by morcheen
got a s1 crosshatch bvh never used since it came from vulcans. supposed to be the best to tune ??
sory whats bvh ?
Old 12-12-2010, 09:02 PM
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Big valve head I imagine
Old 12-12-2010, 09:11 PM
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and i have a feista turbo head to go with it. All ready to go
Old 12-12-2010, 09:16 PM
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morcheen
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Originally Posted by J1mbo
Big valve head I imagine


was going on my s1 but not got around to it yet .
Old 12-12-2010, 09:23 PM
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i was told that it was a garanted 30 bhp extra on a big valve head for the rst ?
Old 12-12-2010, 09:51 PM
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is it ported and polished aswell
Old 13-12-2010, 07:54 PM
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yep had the lot done to it
Old 13-12-2010, 08:07 PM
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Originally Posted by harveyrst
i was told that it was a garanted 30 bhp extra on a big valve head for the rst ?

Don't see how.

Extra 30bhp on a 1600cvh?? Naaah.

Assuming you are on MFI, you will reach the limits of that before the head becomes a restriction, plus to get the most of of the head, you'd need a suitable cam.

You need a way of getting the fuel in to match the extra potential for airflow.



I had a FRST doing 230bhp. On standard head and cam. I fitted a Vulcan head and Kent cam, and made..........230bhp.
With a management swap or maybe a live map on the OFAB from MSD there was potentially more there. But it isn't a promise like you have been told IMO.

More money needs to be spent to see the gains.

I prefered my stock cam and head at those levels TBH.
Old 13-12-2010, 08:25 PM
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the head is big valve and port n polish . so on a standard mfi at 131 bhp u wouldnt get the extra 30bhp out of the work ?? ..........
i know a lad who has got a s2rst just got a stainless n chiped and thats 170 bhp
Old 14-12-2010, 10:15 AM
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how much you want for it?
Old 14-12-2010, 12:48 PM
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Originally Posted by harveyrst
the head is big valve and port n polish . so on a standard mfi at 131 bhp u wouldnt get the extra 30bhp out of the work ?? ..........
i know a lad who has got a s2rst just got a stainless n chiped and thats 170 bhp

You wouldnt gain from just bolting that head on.

You need a cam to get the best from the head. But if you are after getting from 130bhp to 170bhp, why not just chip it? You need to anyway. It can form part of a good spec but not needed for the power levels you are talking about and wouldn't really do much if just nailed on without anything else to maximise it
Old 15-12-2010, 04:15 PM
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so how much do you want for the head?
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