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Discussion in '96-04 - 2V Specific' started by torch318, Aug 15, 2015.
very interesting read, thanks for posting
This is what im screaming! Good post
I had a pretty good conversation with Mike a couple weeks ago about this issue. It seems that he really knows what he's doing when it comes to cam design.
L&M is who will most likely build my engine when I decide what car it is going in. I did pick up some TF heads and already had some VT/CMS cams that I will most likely sell and have Mike source me a new set.
They are expensive at L&M but they do everything right.
Good to know! I should be picking up set a TF heads this year or early next year.
wow someone did a lot of research to figure that out. Wonder if the twisted wedge head on the pushrods suffer from anything similar?
I don't believe they do. The only reason the modulars have this problem is because of the relocated intake valve. The tfs pushrod heads use stock valve location as far as I know.
I though twisted wedge name they had was because of moving some stuff around similar to what was done here.
Oh ok, I don't know anything about that. However, with how long the pushrod tfs heads have been around and been used, I would definitely think that if they had an issue like this it would have been addressed.
To me it just means that Trick Flow didn't do enough research because it really is something that they should of figured out.
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you would think so but then again the 4.6 has been out for a while now and I would have assumed stuff like this would be common knowledge as well.
If I am reading it right they do fine with their cam just not with other cams? I am sure they will recommend their cam with their heads as all aftermarket manf would. I mean anytime I got a sony audio piece the diagram it showed inside was all sony gear of ways it could be hooked up. If they did know of this I would hope or think they would put something somewhere in about it but idunno...
Hang on here!
You guys arnt getting it. Let me try to explain better.
All the valves with in a single head among the modular and old windsors are exactly in line. In other words,... if the valves where connect the dots....you would have drawn a straight line. Were as the TFS heads intake and exhaust valves are opposing, creating two parallel lines, but with a tad bit of seperation from a median line.
Modular tfs heads:
Connect the dots straight line with intake valves. Connect the dots straight line with exhaust valves. Two separate parallel, connected the dots straight lines.
So them little roller bearings in the followers residing under the cam....now sit a tad bit off distance from each other. Meaning intake roller sits to the left a little and exhaust sits to the right a little, but not a dead straight line like a stock modular.
Ask questions please
All I know is they make power
Yes they do! Id love to get my hands on a set!
Pretty crazy stuff to read. Making the TFS heads more of an less cost effective route to take with the 2v car.
2800$ish heads plus custom cams = 3500 (+-) factor labor and tuning into that and you could have coyote swapped it.
And alot of people look at it the same way!
Im a 5.4l 2v guy, I wanna get my hands on a set and test my skillz with them.
damn I thought I was sweating when I ordered my pushrod set for $1g.
Thats far more cost effective
Wait where are we finding Coyote swaps for $3500( I see an occasional truck engine for 3500-4k but not often)? Don't you need headers, control pack, oil pan and a few other things like tune and since we factored in labor with the above TF head/cam swap don't forget that also. I bet you will pay $6000+ for a Coyote in an SN95 if you are also paying for labor.