Can it be done is it a direct bolt on or are there other parts needed to make this work , i got a brand new hx 40w for a steal and wanted to make sure it would work.

 

Since you've not got any replies I'll try to give it a shot.

Most feel that the HX40 isn't really worth it as an upgrade simply because the compressor size is equivalent to the HE351 that came on the truck, but that the HE351 is a more efficient, modern turbo. The exhaust housing is larger on the HX40 though. Because of that you'll experience a lot more lag than from the HE351, on a stock truck it would probably be annoying. You also shouldn't try to run more than about 40psi on an HX40.

HX40's also have been known to break the turbo shaft if they're barked.

It won't be a direct bolt on since the outlet of the compressor needs an elbow to turn toward the intercooler. You would also need an HX40 downpipe, but those are commonly available.

Others may come forward and give some more info, hope this helps.

 

Thanks for the reply, I have a quad stnrd box and gauges just seeing if the Hx-40w will lower my egt's a little and give me a little more boost this Hx-40 is brand new and the guy only wants 150 for it he,s in to the rice burners and was going to put it on some car of his and went with another turbo . so the He351 is about equal to the 40?

 

Well on the compressor side the HE351 is a little better from what I understand. On the exhaust side it has a larger exhaust housing, I don't know the size of the turbine though.

You also can get different exhaust housing sizes as well, the 16 cm^2 is the most desirable but I believe an 18 cm^2 is more common. Your peak egt may be lower but your average egt would likely be higher since at part throttle operation you would be making less boost.

In my opinion it would be a less fun truck, due to the increased lag from the larger turbine and exhaust housing.

I knew a guy who had one with a 16cm^2 housing on a 24V and all he had was 275hp injectors and a 65hp Edge EZ. It did ok but definitely didn't have the response the HX35 had. Of course the HX40 was an upgrade from the 35 due to the larger compressor. It helped him mostly when towing.

Do a search on the HX40, you'll get lots of reading.

 

Dave is dong a good job above of explaining.
Other than the HX 40 being a lot less reliable, the difference is the HX 40 will give just a tad better top end at the cost of a lot more lag. Your stock HE351 is a better turbo all things considered.