Negative ghostwriter.

What I'm saying is 3v plates to put a 4.6L 3v intake on a 5.4L 3v engine due to the increased width.

3v intake on 2v heads would be a waste of time IMO and it would probably be more cost effective to buy a nice 2v intake.

 

the 3v intake would be plugged up by even the most radically ported 2v heads. It would probably cost power in the end due to reduced velocity through the intake.

Guys, please if you have dyno numbers, even crappy ones for a 5.4 project, post them up in my sticky in the dyno results forum. I've gotten a couple requests to get some updates in there. I'll scan this thread and post up some of the older results too as soon as I can.

 

Thanks for clearing that up!

 

Red! if you think it's gonna be another 6 months for that Hardball'r, I guess I'll pursue the Holley S/C route. It would be cool, but more than I want to spend and the engine is not built for it.

6 MONTHS?

That's such a long ways off! I guess I'm to demanding.

 

I'm impatient too cuz i've been thinking about pickin up the 4.6 hardballr just to tide me over until the 5.4 version comes out. Then i'll just toss it on ebay or somethin.

 

mean330, thanks for posting up the numbers . I know there's more in there with a good set of headers. Even big tube shorties should put you just over the 300rwhp mark and give a nice tq bump. Longtubes will do wild things to your peak hp# (I'll bet you see 330rwhp and improved tq). The dyno sim has been right about every prediction so far and this is the only change I can make that makes this big a change to the results. We see by the extremely close match between your cars numbers and Saleen S 330's that the only difference is cams and head pipe choice. He'd have lost 20bhp with stock manifolds and gained nearly 40bhp with longtubes. I know it sounds stupid to even suggest but a couple other cars with 5.4's vetted that theory out too.

96blackgt54: I understand impatience... I have a bad case of it. If you put the blower on though you're almost certainly going to have a 1 of a kind car and there's a lot to be said for that (as much as I want you to buy a 5.4 hardball'r ). I don't know for certain the timeline for getting the 5.4 Hardball'r. 6 months seems a bit long but I think even that long would be worth it.

 

i'm so impatient with my build it's killing me. i sit here at work and read about people that already have thiers on the road and i just kick myself. but this weekend i'll get the pasenger side weldedup and fitted. i won a bid on a prochamber for longtubes so that should help the numbers also.

 

R3d, Do you think the gain would be reasonable if I installed FRPP shortys? I know it would be a pain without pullin the motor back out but i'm game if it gets me over 300 wheel horse.

 

Tell me about it, mine is driving me nuts. haha it should be together before summer though, so no worries. I rather take my time and do it right.

 

BTW anyone considering a 5.4L 3v swap this seems to be a HUGE hit.

Lots of people are realizing the potential here real quick.

Below is a link to a post with 32 pages of 5.4L 3v technie goodiness.

http://www.modularfords.com/forums/s...ad.php?t=87319

 

super link! Grazi.

 

You see that MMR 5.4L 3v intake.....

f'n NICE but at almost 3 g's... wow...

I wonder what my throttle responce is going to be like with a 3v with 3.55 gears and 8:1 compression.

probably down on power abit like 30 hors but that torque will make up for it right ?

 

the torque will still be there.. it'll drop a tad too though. I don't think you'll be cryin in your beer after driving it the first time. I think you'll probably spill it while jumping up and down.

 

mean330- ask red about what he found in my frpp shorties i pulled off my first 5.4 motor. the long tubes should wake mine up some...

 

yeah... the FRPP's had some direct interference on the insides. I looked in the driver side header and the #6 cylinder's pipe was directly blocking off almost half of the #4 cylinder's pipe. That's a truly serious cork. I'll see about actually getting some pics up this weekend to show you.

The other tubes and the passenger side header as a whole were otherwise fine. I've taken a die grinder to the tubes as needed and they're all wide open now. I'd bet that cylinder being blocked as bad as it was was going to drop total power by like 10%. We're talking about a 1 5/8" pipe with 1" completely blocked off...

Now that I've discovered that manufacturing flaw, I'll have to try em out to see what kinds of gains they offer. If I see anything over 315hp on my 5.4 it'll be because of the headers.

 

In the pic below you can see the white lines showing the general location of the inside walls of the #4 pipe. The Green shows the #6 tube walls. Notice that they fuggin near intersect at the outboard side of the #4 pipe. I used a dremel and a coarse burr to cut the interfering bit out of the #6 pipe and viola.



I'll try to get some pics of my actual headers so you can see the cuts from the inside.

 

i wish i had dyno'd my old nonpi 5.4 before it puked all over itself

 

I had those same headers on my car, mine were the same way on a few runners.

I wish I knew how you were able to clean them up, I ended up selling them.

 

I found a few pics of mine during the install. IMO they were nothing but glorified stock logs, I'm sure after the cleanup job r3d did though they were worth something.

 

those look shiney, are they jethot coated?

 

Yea they were ceramic coated. I think I paid $185 or so on ebay about a year ago.

 

Thanks, you guys are pretty dang helpful. I just came back from the track so I thought I'd share the outcome. There were pretty serious traction problems until 3rd gear but I managed a best pass of 13.5 @ 109. Next time out is gonna have to be with drag radials.

 

you're seated pretty well for upper 12's on that trap speed. Drag radials should take care of the spin.

On a 3400lb car you would expect 413bhp (about 350rwhp) to see a 109 trap speed. Seriously biased tq/hp #'s change that around a little but you're making sick power NA to pull off a 109 trap especially with wheel spin being such a problem.

I wanna see video... shoot some for me next time you're out.

 

still, spin thru 3rd and still make a 13.5 pass is great

 

R3d, I was pretty happy about the mph especially since my car is a convertible that weighs 3600lbs. A buddy of mine took a video of one of my runs with a camera phone but it looks like hell. I'll have to borrow my dads video camera next time to get some good footage for ya.

 

One of the other mustang drivers at the track commented that my trap speed was pretty absurd for being just a cammed 4.6... I just laughed

 

437 hp would typically be required to send 3600lbs down the strip to a 109 trap.

Fuggin BRAVO! You've made it worth it for me yet again. We have basically the same combo. Getting 430+bhp level performance from burning only 330bhp worth of gas is so cool it gets me hard.

cammed 4.6... giggle teehee.

 

Lol, nicely put. If you get a chance check out the JBA shortys for 99 to 04 gt's. It looks like they would fit without modification and maybe make a little more power over the FRPP's.

 

they're definitely a better header. It's the fitment question that's up in the air.

I'm fixin'a drop a line to HPS and see about putting together a complete swap kit including exhaust. Stage 1,2,3 kits. I think it should be easy to work a package out with Texas Hot Rods as they're the authorized reseller for HPS and they carry all the standard aftermarket goodies.

Myillwill.. if you have a recipe for the mods needed for longtubes and are willing to share them we can probably make that a really easy to purchase item. LMk via PM. We won't make any money off it but it's a cool thing to do... and you can say the longtubes were spec'd and prototyped by you.

 

well, i'm still working on them. but as soon as i get them done we'll rockin