My Hp goal with a single charger is 550, but i still tow a fifth wheel. With twins I want to hit 600 on diesel, maybe some spray but i was told if i want longevity out of my motor to stay away from the spray. So i might just stick to water. So what are some experience with longevity on using spray. I dont feel like breaking internal components on my motor. Also charger wise, I was told a 64/14/71 charger will work well for my application. For 500+ Hp for the single, Twins will come at a later date as the funds come in. Also this isnt my only fast toy, so it doesnt have my full attention.

 

I think you will be fine with a set of head studs and a small shot. If you go with the 64mm I would get the 13ss housing better spool up and a better wg set up. I woul remove fuel plate, add rack plug ( unless you have the 215 pump), tune afc, get a set of 5x14 injectors, upgrade turbo, head studs, small shot of the gas, bump timing arround 16-18* and upgrade your trans.

 

In all honesty, you will want to at least o-ring the head and run a marine gasket with re-torqued head studs, for the best longevity and reliability out of your engine. I've driven /known a handful of 500+ hp trucks with singles, and towing has never been fun with them. Egt's get hot, smoke is hard to control and there is generally a fair amount of lag.

As far as modified rigs go with towing in mind, I would be leaning towards the twins pretty hard if I were you. This way you always have the power on tap (Vs. spray or water/meth) and our EGT's can be more consistent as well. Twins can also be had for less than you would think, especially if you have the access to some tools for fabrication. I run small towing twins on my truck, and can't break 1100* no matter what I try. I also have no problems beating Mustangs, 3series BMW's etc while towing a light load (7000#s). And the cost of building twins worked out to well below the cost of a 62 or 64mm single.

You will also need some pump and tranny mods to reach 550-600hp, but it is totally do-able.
Sean

 

an o ringed block and head and studs. if you still want to pull a trailor grind your plate to a 100 and use the aniroid to control low end fuel. is it a stick or auto? and leave the spray for the ricers to mess with you can make all the power you want with #2 and airflow.

 

My truck is a auto. What set of twins do you run sstockton? A hx 35 with an htb2? Its going to be a while before all this happens im in the process of acquiring a transmission for rebuilding.

 

hx35 12cm housing with an external gate over an ht3b 26 cm housing. quick spooling with good top end

 

just watch out when that secondary lites itll spin that 35 pretty dagon fast. im in the works of a similar setup right now hx35 over S475 and im going to have a blow off valve in the hot pipe from the primary to the secondary to bleed of some exhaust gas. youll aslo probably want to install a drive press gauge and a boost gauge between the big and little turbo so you can keep an eye on your pressures and get them as close to a 1:1 ratio as posible. hope it helps

 

What about a 62/14/71 single turbo charger with an external wastegate? I want to be able to tow right off the bat without surging or excessive egt, besides with that much power my right foot might cause me to break stuff. I want a reliable, good running, quick pick up. Lenny at DDP said its possible to run 12's with 500 HP with a good transmission.

 

if your towing with a 62/14/71 with an auto you will way high egts, i know a truck with same turbo that his egts are higher than mine towing the same waight and all im running is a hybrid

 

thats insane. It should theoretically be better on paper because it should get rid of exhaust gases faster. Is his truck tuned properly? I want to have a good running truck that gets good mileage, with about 500 Hp, I was thinking of actually doing the hybrid upgrade with the htb2 26cm housing for a twin setup, but I want a turbo that has a stronger shaft than the hybrid 35... But if you send your turbo off too htt and have him upgrade it and balance the shafts and you watch your drive pressure i dont see why you wouldnt be able to get away with a cheaper setup that has the same power with quicker spool ability. I dont think I would want to push more than 60lbs of boost with the hx35 hybrid setup over a htb2 with 26 cm housing... That should get me where I want to be... Plus it will save me a lot of money in the long run. What do you think about your hybrid turbo setup 94cummins12v?