fordfanboy

For the love god who or where did you get that info from?? Go shoot them.[:'(]

The heads and the new 8.8 are the BEST thing Ford has put on the car.

Go back and ask whoever told you the stock heads are crap why the world record holder and the next 5 in line to the world record holder all run the stock heads and cams with a p/p & valve job?????

Better yet, why don't YOU call JPC, Sutton, Powerhouse, Boss 330, Lethal Performance, PSI Performance, CHE Perfomance, Steeda, Fox Lake, VT Engines, BMR, Livernoise Motorsports, etc, etc and ask them what heads and cams they run on their shop cars.

Scotte28516

FordFanBoy, give me the cc flow for the 2006 4.6L Mustang GT heads. Ford themselves can only give a range of cc flow, not an exact flow. That is why you can take 5 identically exuipped cars, dyno them and get numbers from 235 to 270 RWHP. This is not normal with any other cars. Heads with a P&P and a valve job are NOT stock heads!

moosestang

Has someone dynoed 5 identical cars on the same dyno and got numbers like that? I know what you're trying to say, but I don't think the differences would be that great if done at the same time on the same dyno.

If I dynoed 235hp, i'd get a second opinion.

06SaLeEn

Mustang dynos on a gt will be from 240-255 range. Depending on if its an auto or maunel. I have seen dyno jets run 257(this is thelowest i saw with my [:-]eyes) I have seen in the 268 max(again with my eyes, so I am sure there are higher) He is right though I can t remember when I have seen a car dyno by such a wide margin even between mustang dyno and dyno jet's 240-270 is a big range

fordfanboy

If you were specifically talking about the ports and not the heads in general, then I see where you were coming from. Most people refer to the heads with the main ingrediants - the cams - and those are just fine is what I was saying.[sm=icon_cheers.gif]

Scotte28516

Adam at ST Motorsports(our tuner FordFanBoy)has dynoed identical cars and had these wide variations. My car stock with 8000 miles, dynoed at 231 rwhp, the lowest he's seen. I was there when it was run and saw the numbers my self. He has contacted Ford directly and found that there is no cc flow for the heads on our cars. They have a wide range of flow numbers, but no single numbers. There is no QC at Ford for these components, or else there would be definitive numbers, like Chevy and Mopar have. When I go with a forged motor, I'll go with aftermarket, quality high performance heads. The cams are fine and work great.

06SaLeEn

+1. yeah leave the Cams alone.

carmanwelder

Where did the problems start with the heads? Has anyone had problems with their headswith mods ie SC, TC? I guess if your gonna run strictly Strip you might put the extra money into the heads but the street they'll work fine.

Just some food for thought My baseline was 272.3 rwhp, 300.6 tq (2005 GT). My speed shop, who has been doing these for longer than some of you have been living, baseline 273.2 rwhp and 294.3 tq (2005 GT). Dynojet 248x. Theirs was shown in M&FF issue in a shootout. Oh BTW he runs stock heads!

This is in reply in general not to you specific 06

HaneyMotorsport.Com

Scotte

I am a little confused on this statement?? First, do you mean that Ford told Adam that the heads were never flow tested during R&D of them? I am sure Ford's engine R&D dept. has done extensive testing on the head design, just as they do with any other part....i.e intake, exhaust systems, camshafts, etc. I doubt that Adam was able to get a hold of anyone deep enough in Ford to get a real answer. Second, what do you mean "wide range of flow numbers" ? Are you saying that using the same flow bench (for repeatabilty) and testing different batches of 3V heads, they have flow #s all over the place? I can see having a few #s + or - do to core shifts in the castings and or from production line valve jobs.

PLEASE do Not get me wrong here. I am not trying to talk down on Adam or You!!! I have heard good things about his tuning, etc! I am just trying to understand what I read.

Casey