gator's 99TA

iTrader: (2)

i dont think the issue is to go out and buy a set of TFS heads if you already have a set of Dart heads. i think it was just a fair comparison of the two and show how the TFS as cast can work well.

smok'nZ

iTrader: (160)

i was gonna say the same thing but i didnt want a bunch of tfs nut swinngers commenting in on it

Jessica

Seen that same Dart 205 F14 setup put down 378rwhp on a not so happy dyno and everything was healthy... doesn't impress me for "as cast" heads with larger runners.

sciff5

iTrader: (1)

I think they are good results... I dont know why everyone in here is a hater.

I am just curious how much more power you guys think it would have produced if you had gone with the CNC'd TFS 215s instead of the as cast 220s. The TFS 215s seem like the best heads for gen III blocks but I dont know if the cost over the as cast heads is worth it.

VIPERBLUELX

iTrader: (2)

again...do the TFS require aftermarket rocker arms?

CraZee ZO6

search its been answered like 1000x...
you need after market roller rockers with any aftermarket heads setup if you dont want to prematurely wear our the bronze valve guides. you can do without like some people do but then have issues with guides later on... dont matter the head.


all the haters b/c they dont want to believe the TFS is THAT good. Denial.

NEMESISVETTE

iTrader: (2)

Dart, AFR, Trickflow, and any head that has bronze valve guides require a roller rocker set up do to premature valve guide wear. TrickFlow is just the only company that stands up and say you need them. I personally called and spoke with them on this and I have to say that the guys there stand firm on not feeding its customers a line of bullshit, saying you can run stockers. The other head company's chose to leave out that you need a roller tip rocker. Superior heads, customer service , and Price. TrickFlow dumdumdum

smok'nZ

iTrader: (160)

i thought i read somewhere somebody had stock ones on his 235's running 10.3 or 10.2's on motor

IllusionalTA

iTrader: (9)

i don't feel they're hating.. Clearly there is no area's where either head was similar.. 205cc runner vs. 220cc runner is a big diff IMO...

IllusionalTA

iTrader: (9)

i'm sure someone is.. but it's a reliability issue not so much a "will not work" issue...

smok'nZ

iTrader: (160)

ya idk why he was doing it if you spend 2500+$ on heads whats another 300-500 for rockers

Ron@Vengeance

iTrader: (51)

Apples to Oranges??? I dont think so.... Two budget heads were compared on the same dyno with the same tuner.... Both heads are in the 1600.00 range complete. Consumers have an obvious choice between the two.. Just because the runner volume is different doesnt make it a bad comparison. Not to mention the TFS heads have a larger runner AND MAKE MORE POWER UNDER THE CURVE AND PEAK The Darts SHOULD shine down low with the 205cc runner, BUT THE DIDNT

I just posted up to pass along some INFORMATIVE results we saw... Take it for what its worth....

IllusionalTA

iTrader: (9)

No the results are obvious I was just confused on the scope of the test

NEMESISVETTE

iTrader: (2)

What does that even mean

The Alchemist

iTrader: (19)

What the head specs are doesn't matter. It's simply a cost vs. power comparison. Who cares if they have different intake runner sizes, or different valve sizes. Both are out of the box, bolted on heads. One makes more power than the other.

A qustion to Ron, how much if any where the TFS milled, and if they weren't how much power is to be gained by milled them to say 60cc?

sciff5

iTrader: (1)

I'm with this guy... Thats what I was thinking.. if anything this test should make the darts even more worthless. Every dyno test I've seen comparing something to the dart 205s the darts get beat.

The fact that the TFS heads made more power than the darts absolutely everywhere in the power band is pretty sweet.

Krazy98Z28

iTrader: (12)

This would be my car.

$300-500 is alot for me

I was told no need for aftermarket rockers, you can shim the stock ones to work.

SunsetOrangeZ

iTrader: (10)

I'm with you. He may not have got these results if he was switching from a Dart 225 to the TFS 220. I personally could't justify a head swap for 20whp. Why not just buy a Fast 90/90-92/92 and call it a day.

Plus he could have pulled off the heads and had them ported along with the Fast and made alot more power.

Now he's still going to want to do that but he already has all this time and money spent on changing his heads.

KMS.1320

iTrader: (1)

spend the 700 extra he spent going to the TFS on a valve job and cleanup on the darts, and he would have stomped those TFS numbers. Everyone knows the Dart "stock" valve job is seriously holding those heads back! Well, maybe not EVERYBODY, right Ron?

Ron@Vengeance

iTrader: (51)

The POINT is... two sets of OUT OF THE BOX HEADS on the same combo... There are LOTS of coulda would shouldas that COULD have happened

Darts out of the box valve job sux right?? All the more reason to by the TFS heads for the SAME price and not have to dump another 700.00 into the Darts to bring them up to the level of the TFS heads.... Hell why dont we take that 700.00 and hand finish the AS CAST TFS heads and pick up even more power there too.........................

It is what it is ladies and gentlemen... A simple head swap with the results posted.... Customer did not want to add a FAST yet because he WASNT HAPPY WITH THE POWER HE WAS MAKING WITH HIS HEADS/CAM... Now that he is a FAST 92mm will be in his future...