Machining Pistons to run 20v head... And FCR's on a 20v?
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09-11-2013, 07:17 PM
Post: #1
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Machining Pistons to run 20v head... And FCR's on a 20v?
Anyone up on this?
I might be running a 20v head on my 16v, is pocketing a high comp 16v forged piston to take the 5th valve something that can be done? Also, anyone ran FCR's on a 20v head? This head has no VVti to worry about, so my current FCR's should theoretically go on with a new inlet manifold and a Dizzy relocation kit.. Right? Ta! Driftworks - JSPFab.com - DangerStyle - NightSpirit |
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09-15-2013, 01:08 AM
Post: #2
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Machining Pistons to run 20v head... And FCR's on a 20v?
Quote:At the time I built this engine no one did decomped 5 valve pistons,One Aussi did this when building a 20V turbo engine, so I guess it is possible. Might pay to get an old 16V piston and drill a few holes to see how much meat there is in the dome where you need to cut... and measure the valve to piston clearances very carefully. Cheers... jondee86 |
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