I kinda got a tip off that there is a problem running a Diesel turbo, missing a seal on the intake side. I will most likely be running a blow-through carb system. What can I do the prevent any problems?

It is a borg warner turbo off a 6.5 duramax.

 

from what ive heard from a truck builder he says that deisel turbos cant be used because the gas engine wouldnt be able to make it spin fast enough to operate properly

 

I am no expert, but I would put it on a 6.0L engine redlining at 6500 RPM. The diesel is a 6.5L but revs out at 3500ish RPM. Anybody else have any say?

 

If the truck is a twin turbo then you should be fine running one turbo, however if it is a single turbo then you would spin the turbo but the amount of boost wouldnt be as high as what you would probly like to see.

 

You should research turbo compressor maps. After you learn to read them and plot your engine accuratly, you'll be able to determine exactly which turbos work and won't work. You can also tell, of the turbos that work, which one(s) is(are) the absolute best for your application and desired results.http://www.gnttype.org/techarea/turbo/turboflow.html

 

what are you putting it on? If its the engine in your sig, two might work ok. The compressor seal I think your talking about wont give you any problems on a blowthru setup, its the drawthru setups that will, because they have vacuum applied to them @everything except boost.

HTH

 

Yeah, there is nothing different about them. They are actually tougher. They are made to go a bunch more hundred thousand miles than the gas ones. You are thinking about the draw thru setup which is not worth the time, go blow thru. I used two diesel mercedez turbos and they spool with full boost at 3400rpm and my peak boost is 26 psi with the boost controller on the highest setting. All you have to worry about is if you have a real high volume oil pump them you have to restrict the oil inlets so that it wont blow into your exaust.

 

Holy misinformation batman…

Maybe, maybe not… it depends on the turbo, the application…

Older diesel turbo setups tended to have very large turbines for maximum efficiency with no regard for spooling. As more normal drivers get them, that kind of sizing got unpopular, and more recently as emissions regs got tougher for diesels it’s almost swung in the other direction.

As a rule of thumb (that is in no means accurate but better then anything here with the exception of getting off your *** and learing to read compressor maps and finding the for whatever you’re looking at), a diesel turbo will feed about half that size engine/hp on a gas engine.

To answer your question, 2 of those IHI turbos make a pretty good combination for bigger small blocks.

Totally backwards… in general, with similar sizing the diesel would want to make too much boost on a gas engine.

For old school, draw through applications they used to use carbon seals to help them with dealing with the vacuum between the carb and the engine. It has nothing to do with diesel turbos.

They’re the same as most gas turbos, there is nothing in most diesel apps that has a positive or negative effect on turbo life with the possible exception that they usually get better care then most gas engines.

 

Compressor maps...learn them I will

 

sounds like a plan young jedi...

 

Something you might not have thought of.....Diesels have a But load more exhaust energy than a regular gas engine

 

Prove it

 

No luck on compressor maps.

What youare saying GTA, is that this may actually work then because the gas engine would have to rev out to put out the same energy as the diesel. From what I have researched so far, one 6.5 turbo will not suffice. People are running them TWIN!