a kid i work with has a turbo off a duramax diesel he wants to sell, im not sure and neither is he about dimensions and if it will bolt up to my "ptk" ebay turbo kit, (t4 flange, and 3"downpipe) also i was wondering if it would be to big of a turbo for my stock ls1 to spool to make good power...

 

I would suggest that you just buy a budget turbo like a Masterpower T70. Unless he is gonna let you try it before you buy it. The T70 is a proven performer on a stock LS1 and at 600 shipped its easy on the wallet too.

 

aren"t diesel turbos designed to make boost at lower rpm's??

 

eh it depends on the volume of exhaust/air being pushed more then the rpms.

 

i do not think it will bolt up to your turbo kit. i believe the durmax diesels are internally wasgated and do not have your standart t4 flange

 

Yes diesels also have a 16:1CR or something like that!

 

thanks guys ill probally just spend my money on the right turbo then

 

Diesel turbos WILL work on an LS1.....my current turbo is from a 15 Liter Caterpillar....and it works awesome.

However, from my research, the Duramax LB7 turbo would be too small, if anything. Plus, the flanges are all goofy, and they are indeed internally wastegated.

I was planning to use one on my truck, awhile back....I even had flanges made...

 

The flange is not a typical exhaust flange.

Since the turbo is mounted in the V of the block. The rear manifolds pipe into the turbo together at the bottom of the turbo, and its 2 small holes. Not a flat plate like other turbos.

Like this



BTW, they are only good for 34psi, and about 500hp. On a diesel of course

 

the turbo of a powerstroke should work. i would use two of them.

 

which caterpillar turbo you use in your truck i have one almost new that a friend sold me for 25 dlls from a v8 caterpilar that was in a crashed truck im gathering parts for my mustang 5.3 swap, tomorow im posting some pics and pn of the turbo so anyone can help me to decide if is good for my stang and also which wastegate and BOV im going to need ...

 

Quit being cheap, just buy a decent T70 and be done with it bro. No reason to be a broke ***

 

Turbos from Diesels generally need to be from an engine about twice the displacement of the gas engine its going on due to the fact that Diesels run at such low rpms. a 6.7l turbo, even with the correct flanges, would be best on a 3.x liter motor

 

Dmax turbos use pedestals. It will not bolt on.

 

I got a.7.3 turbo from work and though bout using it on my car but the flanges are goofy.I'm doing a 403 build what turbo u guys think would be good for my setup?

 

How much power?

 

The newer Duramax's arent even wastegated. They use VGT turbo, so even if you could get it to bolt up you'd have no way control boost.

 

Why would not building a WG onto the kit that you would be trying to bolt the diesel turbo to not work?

 

Look into holset turbos. I started looking into them after seeing a build thread on here

 

the problem for holset turbos and just about every diesel turbo is that the frame on them are huge!! and there strange flanges
for stock ls1 cubes you are looking at a hx55 holset which would be a good turbo if you could find the room to put the monster and its not going to work with just about any turbo kit so you pretty much have to build a truck manifold setup
imo much more trouble then there worth