I have been looking around and asking quesitions to a few people yet getting no where. I was looking to build up my current 5.4 motor and be all motor hoping to make in the range of 400-450hp flywheel. Yet after asking a few motor builders for advice and what not, seems like it is going to cost me nearly $10k ( that is for all new parts and block,rods,cams, whole nine yards) Than I have to get everything to plug and play, be street legal and yadda yadda. So I have turned to getting, well looking into supercharging it! I plan to go with the roush supercharger intercooled as have a buddy can get me a brand new one for $4.5k. Than I figured if I wasn't happy add long tube headers, a pulley and get it retuned. Now from the looks of it, to me supercharging it seems the way to go. I am not looking to run down the 1/4 mile with it, rather have the power on tap for playing in the desert, turning
37" tires over 4ft whoops. My concern is that will the dust, rocks and such have any impact on the supercharger? I do not plan to abuse the hell out of the truck. Just be able to crusie the desert and lanuch it a few times without something breaking. Also I can run it on 87 pump gas as well, just to clear up confusion on my part. I am pretty sure you can just to be clear. So does the quotes for a new block seem right for the power I am asking? And is supercharging these fords they way to go to make some power from them?

Thanks

 

$10K seems ok, $3k in the rotating assembly, $4K in the heads, $1k for cams and $2k for odds and ends, labor etc.

Supercharging, depending on brand, will be about $3.5-5.5k depending on all the goodies. On all of them you need ATLEAST 91 octane fuel. 8PSI would probably be around 450 to the crank and 10PSI probably around 500. Both are safe to run. Dust and rocks and all that wont affect it any as long as you keep your air filter clean as you would need to anyway.

Forced Induction is always cheaper and easier to make power over N/A. However I always have more respect for N/A. I have the whipple blower and personally think its the best out there besides maybe the saleen/edelbrock set up. They are all twinscrew blowers as oppose to Roush roots style.

 

I have a great respect for a N/A motor and wish I could do it, yet for $10k I could throw a turnkey LS2 in the truck and be done and make more power then I could for a ford motor setup it seems like.

Only reason for me to get the Roush is I get a deal on it and has everything I need to bolt on my truck, is why I said it. Looks like the more reading I do S/C it is the best bang for the buck and be reliable.

 

If i could do it all over I would go S/C. I only have a 2v but, I have PI swapped, Cammed, ported, long tubes, tuning, fuel system, and supporting mods and am making a decent amount of power with around 360 rwtq. I also Have a 4wd.

 

Someone on here was just talking about a sale JDM is having. He has the Whipple for 3K!!!
Yes,,a blower is the only way to make cheep reliable power with the 5.4

Phil

 

My truck is Saleen SC'd and is rated at 450hp/500trq flywheel.

Harley Specs

If this supercharged version of the Harley-Davidson F-150 looks familiar to you, it's probably because it is in the same getup as the 2007 Harley-Davidson F-150 that went on sale last fall. The new version has the same aerodynamic-style bodywork trim pieces, same 22-inch forged-aluminum wheels, same captain's chairs, same 3.73:1 axle ratio, same four-door configuration and the same choice of black or "Dark Amethyst" paint.

What's new is the optional $6,500 supercharger kit for the SOHC 5.4-liter V8, which includes a pretty high-tech (it's featured in the Shelby GT500) twin-screw supercharger and twin water-to-air intercoolers. The package has been engineered by Saleen, the California company that started out building hopped-up Mustangs, then went racing at the 24 Hours of Le Mans with its midengine S7 sports car and eventually did the assembly of the Ford GT. The bottom line is 450 hp at 5,200 rpm and 500 pound-feet of torque at 4,000 rpm.

 

When you race in the sand you'll have to worry about all the heat created from these blowers from running at peak rpm. I wouldn't want a roots/twin screw for the sand, I'd want a centrifugal. I'd give Brenthal a call as they have built a few boosted long travel f150's with this style setup.

Not sure if he is still around but in the mustang world a guy Al Papito/Boos330 Racing was building 500rwhp 4v 5.4's without a power adder. A 500rwhp all motor 5.4 would be rad!

 

350's ish seems to be the limit for all motor and you are talking $2-3k for a cams, port and polish. For a $1-2k more I will take the supercharger I am starting to think.

I have E-fans, Under drive pulleys, custom tune, intake, and exhaust now. Just not enough to me, to be where I want. Than another $2k for cams and long tubes I am on the fence about as another $400 have a non intercooled supercharger and will give me better result.

Have a link?

I DO NOT plan to take this heavy big in the sand! By than I will have a rail, of course if I ever get bored with my razor, quad or bike, LOL. Yes the 5.4 4V all motor is sweet, yet than I have to rip into the block it seems like. Where I could simple "bolt on" something and satisfy my needs...I hope.

 

I've built a lot of high performance n/a motors over my lifetime. None of them have the low end torque a positive displacement blowers produces. For a mostly street engine, it's the only way to fly.

 

http://www.teamjdm.com/contact.php
Call them. There website doesn't have half of what they offer. They had them for $3000 on black friday and then advertised it again on facebook just the other week.

 

After looking around seems like I have to buy injectors additional to the Whipple setup. Rather just get the Roush where it is all in one and I know it works. So I am going to go with the roush setup.

I currently have E-Fans, under drive pulleys, S&B intake, custom tunes, and a exhaust. Will the intake I have work? Or just use the one that comes with the SC kit? Also I do not have my stock pulleys so the UD ones are going to have to stay on, is that a issue? Next I plan to redo my exhaust. I have OBX LT headers and hi flow cats and plan to do a single 3" system dumped before the rear axle, using a borla muffler. What do you guys think on the exhaust and intake?

Thanks

 

So you would rather pay 1500. for a set of injectors???
I'll get you a set.
And somewhere you mention something about a NON intercooled kit?

Please do some research before you start buying junk!!!!

Phil

 

Yeah I have a set of used 39# injectors I'll sell you for $1000...Save $500!!!!

Please do some research. With a brand new Whipple kit for 3,000, plus a set of new injectors for under $300 it's absolutely RETARDED not to buy the Whipple. Get a 10lb pulley and a tune from JDM and you will have closer to 550hp at the flywheel and most likely over 600ftlbs..

 

Yep and the Whipple runs a hell of a lot cooler than the Roush. And because it takes less energy to operate it will give you 20 more HP. Either kit will need a custom tune as the can tune sucks. Whipple $3300 shipped. 39lb injectors run $250. Sct $300 custom tune $300. Roush blowers I've seen for $4300 plus tune $300 and Sct $300. Ya'll do the math I'm going to work lol

 

There is no "hoping" it works if you buy the stuff from JDM. They are the people who worked out the bugs on the Saleen kit and raced the Saleen truck into the high 12's as a tow vehicle.

Call JDM. they will set you up with the Whipple, pulley, injectors, and a tuner with a proper tune.