Originally posted by DemonSVT:

That and the fact that by running a Full oval port 3L you get the extra oil drains the 2.5L "painfully" lacks.

Well among many other benefits. (like the oval heads beat even ported 2.5L large valve heads )




Hmmmm...
There is a relatively cheap Band-Aid for the 1st issue..the Accusump was pretty sucessful at curing oiling problems for the Contour/Cougar race cars.

To the latter I would pose a question to you. Your 2.5L "split port" was running times consistant with about 200 FWHP. Your "oval port" 3L is running times I would expect for about 240 FWHP. Assuming these dyno "guesses" are accurate...this is the same HP/L for the 2 configurations (in the background of a really good flowing I/E and ECU program).

Doesn't this suggest the heads (stock SVT vs ported oval port) are (proportionally) similar in flow? Of course..if you dyno that beast at 300 FWHP..I retract the above!

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