Sorry I'm alittle new to this diesel hop up thing. Been reading as many posts about getting big power out of my 89 Cummins engine but trying to do some things on a budget. I am a truck driver with access to plenty of big rig engine parts and notice that some of the Cummins M11s use an HX-50 Holset turbo. I haven't been able to find much info in trying to use one of these on the 5.9, but if I was also trying for 400-500hp range with my 1st Gen Cummins, would the HX-50 work?

Thanks Ed

 

Might take a while to spool that up, but it'd smoke real good til the boost hit.

 

The extra boost won't do any good without extra fuel. Fortunately the 89 VE pump is easy to tweak for more fuel. See the proceedure in the tech facts section. I just changed my turbo to a WH1C which has a 12 cm wastegated exhaust housing which spools up quicker. Some people like the 16 cm non-WG housing better than the stock 18 cm non-WG.

Edwin

 

The hx50 from the M11 will probly have a huge exhaust housing say around 26cm in stock form. Now if you were to come across a 50 in good shape and send it off to a diesel shop that could modify it to a smaller exhaust housing, different turbine wheel etc, you'd be able to get fuel to it for decent spool up and have a sweet setup, JMO. But if you were to just put a stock hx50 on, it'd perform poorly, huge egt's while waiting for it to spool, which possibly could occur really high in the rpm's. Now if you were to ever build yourself a set of twins, then access to big truck parts will come in handy.

 

I KNOW I posted on this somewere recently.....geezzz I'm gittin old...

I ran a very modified HX50/15 on my truck last year I think it was.....
The long story short....on the highway it was a booster rocket waitin for the "launch code"...
the down side was that whether it was on the dyno or at a light, when you got on the fuel hard it would take too long to light up and that resulted in my EGT's pegging 1800* guage in about 12 seconds flat and staying on that peg till I gave up....
Even on the highway I could still pull upwards of 1500*F on a short burst....
I could pull up to 50+ psi from it, and it pulled like a rocket but it just couldn't catch up soon enough to make the WOT safe to hold.....and that's with a VE that had no gov. spring and no modified internal parts and a still intact stock head gasket....must be the church I go too...

pb...