2012 107" build numbers seem low
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Throat diameter of the valve seat, shape of the seat cuts, shape of the valve, port opening ID, valve diameter, etc, etc, all play very important roles when performing cylinder head modifcations.
There is more in that 103"/Wood 555 combo, with the proper cylinder head work, not only hp, but more torque as well.
Hell, Jim Kennedy, strokerjlk, Matoon, Ill, has tuned our 98"/S&S .570/Stage II Heads/10.0 cr, with Rhinehart duals to 108/115, for example.
If that were a 103"..........113/118 I'd suspect with the same/same for instance.
And as long as we are talkin' small Wood cams, RC Cycles, Hayward, CA, just tuned off a 117"/10.0 cr/Wood 6/Supertrapp, with a head just a bit more than the OP's of this thread, that we machined for our client, to.................124/135 on 91 octane CA pump gas.
Dyno report on the HTT.
Whacks 120 ft/lbs about 2200-2300, and carries that number to about 5300.
A 555 would have done more, as would have a multitude of other cams, but we worked with his existing Wood 6.
Scott
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From: deland,florida
simply putting in 1.900 valves,with not even minor port or bowl work,wont show any more than the stock valve.like scott said,it all has to work in unison.even with our base headwork,the port & bowl are contured for a 1.900 valve
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From: Illinois
Kirby, how far would you guess my 585 will keep making power, like I messages you before I'm planning on setting me limiter at around 6700 when I dyno it.
EDIT:
I don't think it will go that far, but want to know the drop off for sure so I don't want to limit it to early.
EDIT:
I don't think it will go that far, but want to know the drop off for sure so I don't want to limit it to early.
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Joined: Feb 2014
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From: Lethbridge, Alberta Canada
Kirby, how far would you guess my 585 will keep making power, like I messages you before I'm planning on setting me limiter at around 6700 when I dyno it.
EDIT:
I don't think it will go that far, but want to know the drop off for sure so I don't want to limit it to early.
EDIT:
I don't think it will go that far, but want to know the drop off for sure so I don't want to limit it to early.
I didn't know that stock HD connecting rods could do that - or they have been replaced by stronger ones?
Jim G
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Carillo would be the choice, but when an H-beam comes apart, it'll go through an engine like a chain-saw.
Doubt if a street-driven gas bike, would break a Carillo rod though.
Scott
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Joined: Sep 2009
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From: deland,florida
it should make power up to that,but I have to say that I don't recommend taking it that high.thats REALLY winging it out,
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From: Lethbridge, Alberta Canada
Jim G