Nice. Thanks for the good info. Surprised and a bit disappointed at the numbers with those huge ports. Even the little Twisted Wedge TEA 185's flow better than that on a small bore and lifts under .700". I guess they're after the big-bore super-lift buyers, eh? Hmmm... With runners that large, I guess if a duck quacks, it still won't echo? LOL... never mind.
Nice. Thanks for the good info. Surprised and a bit disappointed at the numbers with those huge ports. Even the little Twisted Wedge TEA 185's flow better than that on a small bore and lifts under .700". I guess they're after the big-bore super-lift buyers, eh? Hmmm... With runners that large, I guess if a duck quacks, it still won't echo? LOL... never mind.
The problem I have with TFS heads is the things that require changing. TFS (Canefield too) have tweaked their heads to get those number, unfortunately - in many cases its enough to make it difficult to fit headers as well as require relocation of valve clearance 'eyebrows'. For a dedicated race engine, not much of an issue; however, if you didn't start out with them in your build or you don't want to compromise with collectors hitting the floor boards, its going to cause problems.
You have to look at the whole picture, what the guy is trying to acheive before just going for the "big numbers". I know of more than a few guys who have ended up selling their TFS heads and bought AFR, World product or other once they came down off the max effort or bust game plan.
I got nothing against TFS ... other than their fitment issues and sometime the need for special requirements to deal with their geometry changes.
I haven't research the 18deg Man o war heads or FMS "N" heads they may have issues too.
Yeah! The TEA TFS Twisted Wedge cylinder heads put up better flow numbers on a bench. But your comparing two completely different cylinder head designs. Just because a cylinder head post big numbers on a flow bench doesn't mean that it's going to out run other cylinder heads at the race track. Making horsepower is about filling the cylinder with air and fuel as fast as possible. The faster you can fill the cylinder, the more cylinder pressure your going to have, and the more power your going to make.
That's entirely true, but since that's all you posted, that's what I had to compare with. Average flows across selected parabolic ranges would be nice, too. Obviously comparative structured run testing would be better, and I'd like to see it, as there are a few features about them I see that may be great or not so. Very hard to tell from photos, as based on angle and lighting, they do often lie to the eye.
The only thing that I don't particularly like with these heads, are the exhaust port locations. It's in the stock location, and they're at a disadvantage because almost all of the other cylinder head companies have a raised exhaust ports. So it's not necessarily comparing apples to apples.
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