anyone have desktop dyno & who'd run a combo for me?

[BigDuke6 17]

I would like to know what a 408 stroker with Trick Flow 11R heads, an RPM Air Gap intake, and a 770 cfm carb with annular boosters would make. The heads are these ones here:

 

http://static.trickflow.com/global/images/chartsguides/t/tfs%20airflow%20tw%2011r%20205cc%202014c.pdf

 

and the cam is a hydraulic roller cam with the following specs

 

108 LSA

- LIFT: INT 560 , EXH 540

- DURATION AT .50 DEG: INT 236 , EXH 240

 

I would much appreciate it.

[THE EVIL TW1N 12]

Your set up is not too different than mine. I would expect about 525hp /550 tq. I still need to dyno mine, I haven't been able to find any independent dyno's of the 11R heads. You are running the 205 heads, yes? Which headers/exhaust too?

[BigDuke6 17]

I don't have the heads yet. I have a pair of ported RPM Performers that slightly exceed the flow of vic jrs. I am debating either stroking with the new 11R heads or adding a Paxton and am deciding based on cost vs power in terms of hp/$ ratio.

[MikeStang 247]

EVIL What kind of headers are those you have.

 

If the Trickflow heads are similar to the AFR 205's you should do between 525/550 Hp.

[BigDuke6 17]

EVIL What kind of headers are those you have.

 

If the Trickflow heads are similar to the AFR 205's you should do between 525/550 Hp.

 

I have FPA long tubes

[THE EVIL TW1N 12]

EVIL What kind of headers are those you have.

 

If the Trickflow heads are similar to the AFR 205's you should do between 525/550 Hp.

I run 1 3/4" ceramic coated Super Competition Hooker headers.

 

The old 205 TFS heads were a pinch better than the AFR 205's. These new TFS heads are supposed to be an improvement on top of that, but there's no real worl info out yet.

Edited July 14, 2014 by THE EVIL TW1N

[MikeStang 247]

I managed to crank out 550 hp with the AFR 205 Nitrous ported heads, we did replace the springs and cam was almost same grind as yours Evil but i have just a smidge more lift, and I'm ground on a 112* lobe sep.

Was Dynoed with 2" Primaries and HP 950 on a Vic Junior intake.

On a 125 bump it made 659hp/666tq running EXTREMELY FAT and way to many degrees pulled.

We only sprayed 1 time just because I wanted to see what it would do and it was a Top shot Kit mounted inside of the Shaker assembly from my 77 Trans Am...We lost almost 20hp just by putting the Shaker assembly from the TA on the ford motor LOL, so in all reality if it had been a plate kit and we had not lost the 20 hp it would have pushed upwards of 670 or so HP I would imagine if we had played with it enough we could have neared 700Hp on a 125 shot.

Those are at the fly wheel numbers btw

[MikeStang 247]

Oh I did it with 408 Ci just saw you were pushing a 427 so you may be a little more bud

[MikeStang 247]

I also have some RWHP numbers from a friends 408W with patriot heads and roller close to ours.

He put like 410hp to the ground with a 750Vac secondary carb and 1-3/4" Hooker Super comps

[MikeStang 247]

http://www.airflowresearch.com/index.php?cPath=21_104

 

The TFS heads make a bit more down low than the AFR's but loose out up top

But max 650 lift the TFS trump the AfR so I would expect 525-550hp depending on the cam intake combo assuming your running a quality stroker buy never know...Minimum 500hp EASY

[THE EVIL TW1N 12]

http://www.airflowresearch.com/index.php?cPath=21_104

 

The TFS heads make a bit more down low than the AFR's but loose out up top

But max 650 lift the TFS trump the AfR so I would expect 525-550hp depending on the cam intake combo assuming your running a quality stroker buy never know...Minimum 500hp EASY

I know this isn't a TFS vs AFR heads thread, but the TFS make slightly more low end TQ AND HP.

 

http://www.mustangandfords.com/how-to/engine/mmfp-0608-cylinder-head-shootout/viewall.html

 

That's based on the older TFS heads design with the smaller 2.02 valves vs. the 2.08's that they now use.

[MikeStang 247]

Evil what kinda chin spoiler you running.

[THE EVIL TW1N 12]

Evil what kinda chin spoiler you running.

I forget where I ordered it from, but it's just the standard front spoiler I think. How many different types are there?

[MikeStang 247]

Well Mayer racing makes a fiberglass and plastic unit and there are a few other companies that make aftermarket units