Any chance on getting help selecting a turbo upgrade for a diesel?
02-24-2009, 06:10 PM
#1
0.0 BAR
Thread Starter
Join Date: Feb 2009
Posts: 4
Any chance on getting help selecting a turbo upgrade for a diesel?
I'm wondering if anyone here could help me in picking out an upgraded turbo for my truck.
It's a 1994 Ford F250 7.3L IDI turbo diesel, not a powerstroke.
There are limits to what you can do with the turbo due to the 21.5:1 stock compression, and 15 psi is the max boost you really want to run.
I can't remember what redline is...I think it's somewhere around 3500 RPM.
The stock turbo on the truck is a T3/T04B hybrid with an H trim compressor, .70 AR housing and T3 Stage III turbine wheel in a .82 wastegated housing, and it's non intercooled. I'm currently running 10 psi. Top end on the engine sucks. My tach is broken at the moment so I don't actually know what RPM's I'm getting boost at.
The stock turbo is not too bad but I personally would like to upgrade to something with a slightly larger compressor and a larger turbine wheel.
I've looked at some compressor maps and although I'm kinda having a hard time getting a very accurate lbs/min figure (I have no idea what the VE of the engine is, or intake temp), it looks like something around a 60 trim T04E would be ideal for mid to top end power, and probably either an O or P trim turbine.
Just a couple questions to start out with and will add more later I guess. First off, any turbo suggestions? Second, is a Holset H1C or HX40 a viable equivalent? Does anyone know what AR a 16cm holset turbine housing is roughly equivalent to?
Depending on what turbo I use, I may have to find a way to incorporate an external wastegate, I dunno.
It's a 1994 Ford F250 7.3L IDI turbo diesel, not a powerstroke.
There are limits to what you can do with the turbo due to the 21.5:1 stock compression, and 15 psi is the max boost you really want to run.
I can't remember what redline is...I think it's somewhere around 3500 RPM.
The stock turbo on the truck is a T3/T04B hybrid with an H trim compressor, .70 AR housing and T3 Stage III turbine wheel in a .82 wastegated housing, and it's non intercooled. I'm currently running 10 psi. Top end on the engine sucks. My tach is broken at the moment so I don't actually know what RPM's I'm getting boost at.
The stock turbo is not too bad but I personally would like to upgrade to something with a slightly larger compressor and a larger turbine wheel.
I've looked at some compressor maps and although I'm kinda having a hard time getting a very accurate lbs/min figure (I have no idea what the VE of the engine is, or intake temp), it looks like something around a 60 trim T04E would be ideal for mid to top end power, and probably either an O or P trim turbine.
Just a couple questions to start out with and will add more later I guess. First off, any turbo suggestions? Second, is a Holset H1C or HX40 a viable equivalent? Does anyone know what AR a 16cm holset turbine housing is roughly equivalent to?
Depending on what turbo I use, I may have to find a way to incorporate an external wastegate, I dunno.
02-24-2009, 11:08 PM
#7
0.5 BAR
Join Date: Jun 2008
Posts: 100
Re: Any chance on getting help selecting a turbo upgrade for a diesel?
Originally Posted by ghunt
I can't remember what redline is...I think it's somewhere around 3500 RPM.
Top end on the engine sucks.
Top end on the engine sucks.
Don't get a turbo that takes forever to spool, your top end will still suck, and your low end will too
02-25-2009, 12:12 AM
#8
0.0 BAR
Join Date: Aug 2007
Location: Okotoks, AB
Posts: 0
Re: Any chance on getting help selecting a turbo upgrade for a diesel?
That idi, is kinda fragile. I would just leave it as is. It seems to me someone does a compressor upgrade, but in the idi it is hardly worth it. Even the early powerstrokes, I would be leary to add much power to.
The cheapest way to get power, is to pull it and drop a 12v cummins in.
The cheapest way to get power, is to pull it and drop a 12v cummins in.
02-25-2009, 12:19 AM
#9
0.0 BAR
Join Date: Nov 2003
Posts: 0
Re: Any chance on getting help selecting a turbo upgrade for a diesel?
there was a nog back in the day way before the modded diesel fad with a 6.9 ford diesel with big boost and twin turbos putting out 1500 hp and the block flexed so bad it couldn't have frost plugs because it ---- them out. He had big rubber stopers in it, the 6.9 is just a early 7.3. Are you sure they are that fragile?
