Engine/Transmission (1998.5 - 2002) Turbocharger mixing/matching

[Tcolesanti]

I just bought a newly rebuilt HX-40-it has the 8 blade compressor wheel. My question is, can I make a hybrid turbo out of this and my stock turbo-like an HX-40/35. Are the compressor/turbine housings completely interchangable? If I were to keep my stock 12cm housing and install a 6 blade compressor wheel in the HX-40 compressor housing and bolt it all together how would that work? Would I be better off if I changed to a 14cm wastegated tubine housing? If the 6 blade wheel pushes more air and the 12cm housing still spools up quick would'nt that work well? Will the egt's decrease with an HX-40 compressor and a stock turbine? Sorry for all the questions.

 

[clawson]

There are A LOT of different options with this. You need the numbers off of both turbos and need to do some research. You will have to get your 35 machined a little to get "stuff" to fit correctly. Your best bet would be to call ht turbo or go to htturbo.com (i believe) and check things out. I would recommend you call you might find out it is cheaper to just order the stuff from them or send your turbo out and have it done. Let me know what you decide. A stock 12v hx 35 will be easier to do this with anyways. Less machining.



Chris

 

[Tcolesanti]

Why is a 12v HX-35 better/ or less machining?

 

[RHARVEY]

HX40 and HX35 have the same shaft size. The difference is that the HX40 has more rotating mass on the shaft. This makes the HX35 more stable when it comes to power. Yes they are limited on power levels but they are more durable. There are a number of trucks that have been running the 40's for many happy miles and have not had a bit of issues.

Running a lot of fuel and pushing a lot of air thru the 40 could cause a sad situation:{ :{ :{



Rick

 

[Tcolesanti]

I'm looking at adding a set of edm mach 1's or dd1 injectors, and I don't want my egt's high when I'm towing up the grapevine (I go to sacramento and bakersfield alot). So with the VA box and a set of injectors, I am thinking that if I do a hybrid turbo, I can move more air (lower egt's) without sacraficing spoolup-is that correct?

 

[RHARVEY]

Some air box changes and a hybrid turbo should do it.



Rick

 

[Tcolesanti]

That sounds good, any other takes on this topic? Maybe someone who has close to the same setup?? Anyone running an HX40/35 hybrid??

 

[Tcolesanti]

I just realized your location is Visalia, I have a good friend that transfered to lamoore air station from here. He's got a paxton supercharged V-10 '97 2500 4x4-black. His truck will definatly fry some tires!!!

 

[Forrest Nearing]

realize that the compressor housing and center housing have to match the compressor wheel... if the ONLY difference between the 8 blade and 6 blade compressor wheels is the number and possibly pitch of the blades, fine, but if the major and minor diameters are different, you'll have to have the housings machined to match... beyond that, the housings will swap out on the center section w/ no problem.



Forrest <-- running a hodge-podge turbo... H1C center/compressor housings and HX40 compressor wheel/turbine shaft/turbine housing



Forrest

 

[TORQUE THIS]

www.htturbo.com



ask for Steve, he is a great guy to deal with!



Also, send a PM to vssman, he has the 35/40 hybrid from htturbo.

 

[LFarrar]

hey neighbor- from santa paula

I have kind of similar setup and have been thinking of DD1's and have hybrid HX35 and VA box, well propane helps some also. I guess I can always do the bad thing and back off or worse shift down if EGT's go up. I go up the ridge in 6th with my 12K 5er at 65 no problem ( except CHP )

Lou

 

[Tcolesanti]

I talked with HTTURBO today-looks like the HX-40 compressor, a six blade compressor wheel and a wastgated 14cm turbine housing with a set of dd1's. Those guys are real knowledgable, I even conversated about a twin turbo setup with an HX-35 and the H2D that I have sitting in my garage!! Any comments???