I think at 8 PSI you'll be sitting around 400 - 405 RWHP.

Id say you'll be fine with a good tune.

Your transmission is going to HATE you though.

 

I'll be MIA this weekend. I'll be out working on finishing up my install.

can't fuggin wait. 6' hardon with a cheeseburger on top

 

If anyone is assembling their own engines I found this DVD on ebay.

http://cgi.ebay.com/ebaymotors/ws/eB...m=110184405915

I'm going to order one up and see if its worth the $20, I mostly want it just for the visual aspect of things (words in a book dont help me that much).

 

05+ 5.4 3v's have forged crank for some motors, like f-250/350 engines

 

Oh well my transmission hates me already.

 

Hey guys I need to decide on cams, My turbo will start making boost around 1800 rpm and be into full boost by 3000 rpm, I plan on 12 lbs of boost on the street and 16 plus with race fuel. I really would like to keep the R's under 5800. What cams do you think or should I stay with the stock PI cams. I talked to a few lightning guys that went turbo and they stayed with stock cams, my problem with that is that our Mustangs are 2000 lbs lighter and I'm sure that will effect how the cam/power come on in the mustang. Whats your two cents on this I'm getting closer to dropping this pig in....

 

If it were mine I would definately get a blower cam. The stock cams make no power after about 4400 rpm's. That's fine and dandy in a 6000+lb truck but moving the rev range up would surely suit your car much better and put a bigger smile on your face. From what i've seen it appears that whatever rev range the manufacturer states for a particular cam installed in a 4.6 is about 500rpm's less when put in a 5.4 I'm sure someone else will jump in to offer some more help.

 

Surely you'll have to install better valve springs with those projected boost figures.
You can not go with a high lb. spring with the stock cams. The aftermarket cams are of better and harder material, while the stock cams are just basicly cold rolled steel.
Aluminum cam bores + mild steel cam jurnals + higher lbs springs = welding of the two materials.

Hopefully this is some insight for you.

 

Im replacing the springs with the cams, the only info I could really dig up on this is high lift is good, .500 to .550 range and little or no overlap, because of the turbo. Who custom grinds cams, maybe I'll just leave it to the experts instead of guessing on a off the shelf cam. That way I could give them all the info on the car for the best match possible.

 

update on 5.4 swap: all we need to do is pull r3dn3ck's motor. we got the tranny and all of the wiring disconnected. then start putting everything on the 5.4. should be a fun day! ill try to remember to take some pics and post them up tonight.

 

I thought blower cams were bad in a turbo car because of the different overlap ?

 

Blower and turbo cams both have pretty limited overlap to prevent the positive pressure from going right out your exhaust valves.
They both also favor exhaust duration so I don't see any reason why a dedicated "turbo" cam would outperform a similar blower grind or vice versa.

 

congrats Red. If i'm not mistaken, your e-mail to MM&FF regarding their lack of 5.4l 2v mention has been printed in the latest issue i recieved.

Seems all that needs to be done is have more swappers or potential swappers follow suit and send mail to the guys at the mag. Dyno thrashes and shootouts are future posibilities.

 

sweet

 

when i put the 4.6 3v intake on and paint the cowl MM&FF editor said to send pics and write up.

 

Ah, I never understood that - thanks.


FWIW just tossin this out there.

I was looking at the VT Engines site while I was ordering up some main/rod bearings and noticed this.


2V Stage II Port: 220/195 cfm
3V Stage II Port: 275/200 cfm

I'm curious what stock 03 cobra heads flow, I cant find anything on google...

 

According to my Sean Hyland book stock 03 cobra heads flow 233/169.

 

Hmm, interesting. I didnt think to check the SHM book.


I was looking at the fox lake site and found this...


2V Stage II Port: 223/195 cfm
3V Stage II Port: 268/197 cfm
4V Stage II Port: 319/267 cfm (03 Cobra heads)

Even the VT 3V heads vs the 4V heads is a huge change.... Oh well, the 5.4 has torque so its all good

 

What lift are those numbers at? Most 3V and 4V cams are around .45" so the low numbers of the Cobra heads may be due to the 3V heads being tested at higher lifts.

 

pics of the action:

Varius pics of the 5.4 on the stand being dressed. We've gotten the plates and most of the front kit on it. The headers and motor mounts have made it and the oil pan and pick-up have been modified and installed.

 

 

VT's numbers are at .60 and fox lakes are at .550

 

Lookin good r3d - is that as far as you got or is she in and running ?

 

Sick! Did they respond or just print it? I'm wondering if they slammed me or just decided to see who else felt the same way.

 

the motor isn't in yet but it'll be finished sometime this week or next weekend.

we've pulled jareds motor and my old motor, swapped most of the parts that need swapped and now it's down to assembly. My motor being kinda custom has thrown a few curves our way but nothing huge.

 

I got the PI 4.6 in my car last night and we got the wiring harness hooked up. the only thing left is the tranny and fluids.

 

Rock star. Good work.

 

So your doing a 4.6 NPI to 4.6PI AND 4.6PI to 5.4 swap at the same time ?

sounds fun

 

gotta pimp it. You know what they say, go big or go home. if nothing else we've been reasonably assured of having enough parts of the right kinds to solve pretty much any problem.

 

These #'s are to high for a stock bore. I would say these #'s are generated with a "max bore", which unshourds the valves. Great #'s on a max bore.
So many technicals, so little info.