Re: Gains switching to larger intake valve
[Re: theclutcher]
#468411
09/16/09 09:37 AM
09/16/09 09:37 AM
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Joined: Jul 2006
Posts: 4,595 On the south side of Nowhere
S/ST 3040
master
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master
Joined: Jul 2006
Posts: 4,595
On the south side of Nowhere
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Probably no gain unless you unshroud the valve by machining the combustion chamber.
if that is shrouded, you can expect very little then bore size comes into play. imo...
Anytime I've tried unshrouding the intake valve (straight wall side) on an OEM head, it hurt flow. I haven't tried it on the RPM though.
That is interesting, Have only seen the opposite.
Hmmmm..........3 notebooks full notes and a flow bench is pretty handy.
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Re: Gains switching to larger intake valve
[Re: S/ST 3040]
#468412
09/16/09 09:52 AM
09/16/09 09:52 AM
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Joined: Mar 2005
Posts: 2,172 Ohio
theclutcher
top fuel
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top fuel
Joined: Mar 2005
Posts: 2,172
Ohio
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Quote:
Quote:
Quote:
Quote:
Quote:
Probably no gain unless you unshroud the valve by machining the combustion chamber.
if that is shrouded, you can expect very little then bore size comes into play. imo...
Anytime I've tried unshrouding the intake valve (straight wall side) on an OEM head, it hurt flow. I haven't tried it on the RPM though.
That is interesting, Have only seen the opposite.
Hmmmm..........3 notebooks full notes and a flow bench is pretty handy.
cant argue with that, just the few Ive had experience with always picked up, big or small block when opening up that area. wonder what the difference could be?
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Re: Gains switching to larger intake valve
[Re: theclutcher]
#468415
09/17/09 09:18 AM
09/17/09 09:18 AM
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Joined: Feb 2003
Posts: 4,953 Houston, Texas
TheOtherDodge
master
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master
Joined: Feb 2003
Posts: 4,953
Houston, Texas
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Hey Josh! Long time no talk!
I think switching to the 2.05 valve is more expensive/time consuming than the improvement you will see (valve job, cut seats, new valve, set up springs, intake gaskets, head gaskets, antifreeze, oil, etc).
I would concentrate on weight, particularly the hood where you will get a lot of weight off the nose.
Tell your dad "hi" for me!
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