Interesting. I wonder what throttle body and intake they had on it? I'm wanting to run 15+ psi with mine. Should take it to 600rwhp...i hope

 

http://www.brenspeed.com/127350.html 4900RPM and up, seems a bit steep for a truck..?

 

Yes it's a mid to upper rpm cam. Will give that idle I want to. Needs a 3000 stall and gears. Got that covered as my converter is a 3500 stall. I plan on turning mine to 6500rpm at the strip and probably 6000 on the street tune. So I will benifit from the cam. I also like that they have the stronger valve springs for this cam which will add some stability. 15+ psi is my goal and that will take care of the bottom end torque with no problem. Especially with the Whipple offering that boost at idle.

I love the sound of the FRPP hot rod cams but they are not timed nor ground right for boost. Gains are way up high with them too.

 

Yea FRPP makes more power about 3700-4200RPM+. I dont see an issue with spinning a 5.4 to 7000RPM as long as the trans can hold it. With a 6500RPM redline 4900RPM cam isnt that bad. Just really have to be careful and I would still go custom grind. With the weight of the truck throwing in a high performance cam can kill bottom end driveability. If the truck isnt for racing then a one grind fits all is fine.

Also for you Jason I would never recommend Hot Rod Cams. If you were at 10psi and wanted a nice idle yes. But max power never

 

The stage 2 blower cams start at 1500 with solid gains above 4900. I don't expect much out of any cam over stock within the idle to redline area. Those hot rod cams are like no other for that idle. They are something to behold.
I do want enough lift to really flow some air and keep her making power between 4000-6500rpm. The 6500 limit is self imposed. Had a great conversation with P&M Performance today. Great prices and they know their stuff. Putting together a qoute now. Wanting to keep compression around 9.0:1 so she want be a slug around town. They will deck the block and heads to make it happen. Planning to use my stock crank and stock block.

 

While I haven't seen any 5.4 3v dynos with big cams what I have seen with 4.6 stangs and they show minimum gain until 4500+ rpm then it gets insane like 70whp depending on setup.

Lift with bigger valves and ported heads would make huge gains.

 

Thats awesome Irons1n. If you get a chance send me a link to some of those. Would love to see it.

 

i cant wait to see your results when its all said and done, low 11's to high 10's for sure at that point what you think

 

Can stock heads flow to support 600whp? I guess, what is their limit?

 

Some sources claim the stock 3v heads flow 240cfm stock and up to 311cfm when ported and larger valves added. Using the data below and the formula of 1 cfm = 1.5hp the stock heads support nearly 350 hp and using the formula of 2hp per 1 cfm they support they support 448hp. Heres some data on flow from BBR @ 28" of vacuum.
Blow-By Racing's
2005-06 Mustang GT 3V Head Flow #'s
Intake
Lift----Stock CFM------CNC Porting CFM
.100-----77.1--------------75.3
.200----147.0-------------162.0
.300----199.6-------------228.3
.400----216.0-------------273.8
.500----223.2-------------283.6
.600----224.8-------------292.9


Exhaust
Lift----Stock CFM-----CNC Porting CFM
.100-----52.7-------------46.2
.200-----97.8------------104.3
.300----120.2------------135.7
.400----138.1------------163.2
.500----148.2------------177.0
.600----153.7------------189.6

 

Heres the issue with cams in our trucks

http://www.moddedmustangs.com/forums...127500s-2.html

as you can see on his stage 2 N/A cam he gains almost 40RWHP, however zero gain until 4750RPM and maybe like 5hp at 5000RPM but makes almost 40RWHP at 6250 RPM (if you go to 6500RPM+ this would be great).

I'm trying to find out what the Cam part number was where guys were pulling 50-70RWHP @ 7000RPM. It was a blower setup maybe the 550 cam? It was huge gain but again over our stock powerband its worthless which is why I recommend FRPP for stock or lower PSI as it gets the sound everyone wants and from what JDM/Troyer have told me 20-25RWHP in our normal power range.

 

I would need to see it to believe it. How about the FRPP ported heads? I looked briefly, and was not aware of other OEM 3v castings.

 

Livernois makes better ported heads from what I've heard. As we share heads with all 3v v8s you can buy any mustang badass heads set

 

I've looked at some livernoise stuff. I am not made of money.

 

I can certainly appreciate your being skeptical. The cool thing is though that these flow rates are based upon 28 inches of vacuum. They can flow a lot more with air being pushed through them. That's not to say porting wouldn't make it better but with boost you will get the flow. The 3V heads have a nice straight through design. The 4.6 3V have been setting some world records these past few weeks and dipping in to the 9's. Of course the 2hp per 1cfm of air I mentioned earlier only applies when an engine has been optimized in every way. Compression, valve size, porting, cam profile custom ground for exact application. But the 1.5hp per cfm is pretty standard.

The block I was looking at was making 650rwhp with stock lightning 2v heads that were ported and had bigger valves. I'm sure my 3v heads can keep up. I will likely do some porting work to mine while she's down. This will add to the down time but pay off in the long run. Doesn't make sense to port the intake for a larger tb, add a larger tb, larger inlet tube, and have a ported blower without doing something to the heads.