Yeah, my old dodge 2.4 was running 22 pounds of boost and was just pushing over 300- the twin turbo package would probably be ok, lots of work though-

As far as turbo's go- the GT55 would probably be a way to go- The engine bay and such has plenty of room for an add on like that....

 

That was gonna be my next question... being that I dont have one of these trucks I dont know what kind of space it has and where.

 

Pistons are hypereutectic. Don't know anything about the rods though. Good to know that the crank is forged.
Tony

 

In the non-Lightning 5.4, I know some guys who are running up to 14psi with centrifugal blowers (Prochargers), and 10 - 12 psi on twin-screw (whipple) & roots (Lightning) blowers. You definitely need an intercooler to handle higher pressures with the stock pistons.

I run 10.5 psi in my 5.4, non-PI motor. And I tow a lot.

I would imagine the V10 could handle similar pressures.

 

The rods seem to be forged. Now comes the question of how much power are people looking for and what budgets are we talking for that power?

 

well I assume it depends on the owner, but what are you looking to do? Twin? Single? Again, depends on the owner, I myself would like a single turbo pushing like 10-12 pounds around 2 k or so on the rpm scale.... I figure that from this engine full boost would be around 2.8-3 k, rpm wise + what kind of intercooler etc... I have a stock srt-4 intercooler sitting at my house, I will look to see how good that will mount on the front and go from there-

 

Well I dont think an SRT4 cooler will work too well but maybe, depends on setup. Banks makes some that will bolt right in.... expensive though. Will do some digging to get the turbo you need to get 10-12psi at 2k rpm.... should be a easy.

 

Cool- sounds good to me-

 

With what you want a GT40 turbo with compressor trim of 50 will be your best bet and that will be about a 76% to 78% cooled efficient. Should be full boost at 2000rpm. The turbine you want is a GT40 with 84 trim.

 

And that would be a mid mounted turbo... nice

 

Initially I was thinking a Banks IC would do the trick, but I think it may be wxcessive for our applications. We aren't going to see 30psi with these motors like you do on a diesel.

Our internals, to an extent, are interchangable with the 5.4L mod motor from what I've read. If this is the case, everything, except for the crank can be pulled from the aftermarket Mustang market for much cheaper than "V10 Truck" parts would be. Some work on the heads while the manifolds are off would be great, or maybe pull the heads and clean them up real nice. Cams would be ideal. You can make a lot of tq and changethe tq curve by playing with cams, but I don't think there is a market for them.
A sheetmetal intake would greatly compliment a turbo application, and you could also modify injector placement of greater efficiency. Technically you could fit a big single, or smaller twins under the hood, and have room to spare. We are talking SDs here, not civics... we have ground clearance... use it. With the twins you can think of it like an I5... and you don't need a large turbo at all for an I5. The smaller you keep it the less you see lag. Lag would be bad for us (for those of us looking for more low end power) because you don't want to be high in the revs to make big tq numbers. if we were building drag trucks, then a peaky high HP graph would do the trick. TQ just off of idle would be great, would feel like a finely tuned diesel, without the diesel woes.

I've seen a handful of successful STS kits on cars, none on trucks, but I don't think that would be an issue. There is a lot of room under an SD. Basically the STS "kits" are turbos with pipes. You could piece together a much more custom (to SD) kit for much less.


None of any of that matters unless you have power goals in mind, power range, and or needs/concerns about the kit.

 

The one problem with small turbos is that the volume of air is too low for the engine size... thats just somthing that has to be accounted for.

 

^^ Very true, I really didn't think about the lag... hmmm, I don't think you would have that much of a lag, some of the exhuast people use are 4 inches... that is plent of exhuast to get the wheel spinning plenty fast...

 

Realistically speaking, my 3000GT VR4 had a 3.0L V6, the twin turbos were smaller than my hand:


So something about 2-2.5x the size of a 9B, which isn't large at all...

 

so those would be twin turbos? Ok, what about a single turbo?