wannadiesel

Or pop the intercooler.

mullishacrew

haha hmm, sounds addicting, well i would probly invest in some injectors some 75 hp ones will probly do the trick, im not sure what the 75 hp ones were though, they had some on a site but there were all named as 360 and so on, with no description, if i put in a powerstroke intercooler, will that get rid of poppin that?, then head studs for the head?, how much would it be to convert my turbo to be a hybrid? and then the second turbo cost? , i wanna try to keep it as little cost as i can by doing this all my self. also, if i upgraded to bigger injectors, would i have a problem with runnign the pump out of fuel? if i maxed out the pump also, or would i have to go with a second gen lift pump ?, i saw some one on here had gotten bigegr fuel lines to, is that necessary at all to do twins?

mullishacrew

any one have something to say to this at all?

wannadiesel

Injectors advertised as 75 HP should deliver enough fuel to run a small set of twins like what you're planning. The PowerStroke intercooler is no tougher than the old Dodge one. Some will leak and some won't. If you are doing twins you should invest in studs and get the head cut for o-rings. You can make your turbo a hybrid with a compressor kit for around $300. The bottom turbo can be had for around $600. You need a piston lift pump at a minimum.

mullishacrew

oohhh ok, if i o-ring the head how much could that set me back? i herd i would have to send the block away to get o ringed to? but i guess thast for v8 gassers?, how much could studs alone and a comet head gasket stand for, for psi?, what would the turbo set up put out for the pressure? sorry about all the questions i just wanna find out what ill need and a good set up, for an intercooler is there any intercooler that can with stand that pressure?

CaptainChrysler

I am no expert on any of this but have some opinions. For an intercooler, you will have to step up to a BD, Banks, etc. They are rated for around 100 psi. Since it will be a custom install anyway, it probably doesn't matter which one you get(2nd gen, 3rd gen, PS). There is a post right now about a 2nd gen IC install. I have read quite a bit about twins, not that it soaked in though. Putting it all together is going to be far from cheap. The $1300 IC, minimum $300 for stock turbo upgrade, atleast $600 for a big hair dryer. You might as well put on a good ex manifold, another $500. Head studs are $500. Some people recomend lowering compression. $$$ Pistons. Let alone machine work, plumbing, and all of the nickel and dime stuff that will add up to half the price of the big parts. I am not discouraging you by any means, just be honest with yourself. It is not going to be cheap.
I was wonerding the same, Cometic MLS and studs? Can it hold 50, 60, ?? psi?

DodgeFreak

how much boost can a stock head and gasket hold......basically stock motor??

wannadiesel

I wouldn't push it past 40 psi. At 45 it's a question of when, not if.

mullishacrew

would an s300 turbo work with and hx35 off of a second gen for a twin set up?, would the hx35 have to be converted to hybrid also?

mullishacrew

also, i know of a junk yard where i can possibly find the second turbo the big one, from semis, could anyone tell me what motor to look for with the semi turbo?, are they on caterpillars? it' bht3b turbo i believe? that goes with the twins.

Ilikebikes

Nope, needs to be lots bigger. I ggot my BHT3B on craigslist with a 26cm housing for $100 in good shape. They usually come off 855 Cummins engines.

Do some searching on twin setups. You'll learn a lot.

mullishacrew

ohh, ok well i have been looking on the twins, but i just wanted to know everything i really need to do this, and if it's a good idea, i believe i saw one of those 855 cummins in the junk yard, but ill have to go see if it's still there.

mullishacrew

hello again, well i found injectors they are the stage 3 DDP injectors, these will be enough fuel for the twin set up right? i called peak diesel performance and they are going to get abck to me on a price for the H1C hybrid up grade with the 14 cm wastegated housing, now ill have to find my self a big turbo for the bottom. the bottom turbo should be waste gated to right? or as long as one is waste gated it's fine right? or should the wastegate be in the hot pipe? for the big turbo?

Ilikebikes

Don't need a wastegate on the bottom, but it would be nice. Keep in mind that with our trucks there is VERY little room for an internally gated turbo on the bottom because the firewall gets in the way. Turbos with internal gates are longer than non gated turbos. Even with my non gated BHT3B with a 5" downpipe I still had to cut into the firewall.

wannadiesel

You'll want bigger injectors than DDP 3's.