4.6L (1996-2004 Modular) Mustang Technical discussions on 1996-2004 4.6 Liter Modular Motors (2V and 4V) within.

h/c or fi?

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Old 10-22-2010, 08:22 PM
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Donnie's GTS
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So what would be cheaper and more reliable? This would be for my 01 so I already have the intake and I'm thinkin' going with the new twisted wedge heads from trick flow plus a stage one or 2 cam. I know a superchargers has been the sure fire way to go with a 2v, but theses new heads seem to be getting 2vs in the 350rwhp range. Thoughts and opinions?

heres the vid that got me thinkin.


http://www.youtube.com/watch?v=CmoSqpddI3o
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Old 10-22-2010, 08:25 PM
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grogan
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i would say it depends on your pockets. i have 10 grand in my blower setup. if i have the option to do it over i woulda went with heads and cams. which is what im working on now
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Old 10-22-2010, 08:44 PM
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NinjaMonky
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Each to his own, my build and what makes me happy is the N/A build, set TFS heads and cams. If you do get a set of tfs heads be sure and get them ported, no need to $2k on the heads when you could just a couple hundred more and get a big jump in cfm numbers.
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Old 10-22-2010, 09:38 PM
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Donnie's GTS
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i thought new twisted wedge heads are already maxing out their capability, and are a redesign of the pi heads on the 99-04s.
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Old 10-22-2010, 09:54 PM
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Well the only thing these have in common is the # of valves, and you can get these bad boys ported up to 280cfm.
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Old 10-22-2010, 10:55 PM
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MU71L4710N
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to take ANY advantage of the trickflow heads, you need a bigger cam than a stage 1 or 2 FYI. TFS heads dont start shining until you have some aggressive cams and your revving to the moon (which you shouldnt be doing on your stock bottom end either). putting a stage 1 cam in TFS heads will really dissapoint you. you will have well over 3 grand invested for a little over 300whp, you could get close to those numbers with just a stage2 cam and boltons. theres a member running TFS heads with a stage 2 cam, full boltons, and i think the trickflow intake, and he has around 300whp on a mustang dyno, so on a dyno jet thats probably around 320whp? maybe a lil more? 350whp wont happen unless your doing a hell of a lot bigger cam than a stage 1 or 2 and you also need to spin the motor to 7k+

you can take that same 3 grand, buy a used centri, and max out your stock bottom end with ease (400+ whp).

supercharger will net way more horsepower than staying NA with a 2v 4.6l. some people just love na power for some reason and are willing to spend the same, if not more money, to have lesser numbers just for the sake of bieng able to say they are NA (and theres nothing wrong with it, i would never do it though and i dont understand the logic but to each his own). since you ask the question which one to buy you are obviously not an NA nut swinger, so i say get the centri. your wallet and your butt dyno will thank you.

and having a blower will also be much more DD friendly than an HC car.

Last edited by MU71L4710N; 10-22-2010 at 11:08 PM.
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Old 10-22-2010, 11:08 PM
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Donnie's GTS
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that's disappointing, seemed like these were the answer to the 2v air flow problem.
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Old 10-22-2010, 11:11 PM
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MU71L4710N
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they are the answer to the flow restriction and they blow a stage 3 PI head out of the water, but they are not designed to make power with a stage 1 cam and a 5800rpm redline thats the bottom line.

the 350 and higher whp number you see, have like 8000rpm redlines and VERY aggressive custom ground cams.
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Old 10-22-2010, 11:13 PM
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NinjaMonky
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This guy is right, that it will be a more DD friendly car if you were to get the traditional blower 2v, and cheaper. Now I don't know who he is refering to about the guy with tfs heads, cams and intake making only 300rwhp. But I know guys making 350rwhp with unported tfs heads and cams. Givin you could spend the same amount and have a centre making 400-ish rwhp.

Comes down to what you want and what you can afford. Btw what is your power goal?
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Old 10-22-2010, 11:14 PM
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his name is mustangmancp just ran across one of his threads. and keep in mind, i said 300whp on a MUSTANG dyno, they read lower than dynojet but i dont recall how much. thats why i said something like 320 on a dynojet (thats the traditional dyno everyone uses).

and what cams are those 350+whp guys running? i guarantee it aint a stage 1 or 2...
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