
12-08-2009, 05:35 PM
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CC Member
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Join Date: Dec 2004
Location: Kansas City,
KS
Cobra Make, Engine: jbl
Posts: 2,291
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Not Ranked
1966 ford 427 le mans race engine simulation dyno numbers
alright here are the numbers used and the power figures since there was lots of conversation on the 429/460 site. thought all of you might find this of interest, it is from eap computer simulation program of course. i'll try to make it readable.
4.24 bore x 3.78 stroke, 426.98cid
2.09" intake, 1.625 exhaust
compression 12.5 chamber volume 76.1
dual plane manifold, 1 780 cfm carb.
headers with open exhaust
solid flat camshaft intake 244 102 c/l, exhaust 244 102c/l, lash .025 both, rocker arm ratio 1.76, lobe seperation 102, gross valve lift .5 both,
primary exhaust pipe dia. 2.15", collector length 25"
pk tq 512 @ 5000, pk hp 510 @ 5500, avg tq 449, avg hp 364
10.8" idle vacuum
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