I have an early 1991 H1C from a non-ic cummins 12v and it has nothing on the exhaust housing except "holset" nothing anywhere identifying it as an 18 or 21 cm.. wth lol
Will the hy35w 9 cm exhaust housing bolt in a hx35w with the 12cm housing?? I have one laying around, I’m doing a jeep in line 6 turbo build, looking for low rpm spool
No the housing will not swap, the hy35/he341/he351 all use a v-band connection instead of the bolt on connection of the hx35. From my testing, the hx35's 12cm divided housing spools better at low rpm (below 1600rpm) while the hy35's 9cm undivided housing spools faster above 1800rpm. This testing was done on my 12valve Cummins.
Do you know if the exhaust and compressor housing are interchangeable. I've heard that you can put a hx40 intake housing on a hx35. Any thoughts on that.
The compressor housing from an HX40 will physically bolt up, but you will also need to be running a HX40 compressor wheel. And in order to run a HX40 wheel you'll need to machine the CHRA for a larger wheel. The HE351CW is basically a newer version of the HX35/40 hybrid. It uses the 7 blade wheel which spools and flows very well, the exhaust housing is 9cm but being single scroll flows surprisingly well up top. So unless you get a deal on the parts/machining to make a hybrid, I'd recommend a HE351CW because it outperforms it in basically every way. Take care!
CumminsWorks will the he351cw bolt up to a second gen manifold. That turbo is for 3rd gen correct? Seems like a lot of machining and balancing and parts to get the hx40 to work.
It takes a little work, you got to get an adapter for it to bolt up to your exhaust pipe, and then drill out two of the holes on the turbine housing for the exhaust manifold studs to go through. You've also got to get a 2.75" to 3" 45° boot and clock the compressor housing for it to hook up. Then you've got to find a way to control the wastegate, a simple spring gate works very well. If you've got a welder it's pretty simple to fab up.
It depends what your goals are. The HE351CW can be had for a decent price, spools about like stock, and can support a cool'n clean 400hp or a hot and smoky 500hp. A HX35 will support a cool'n clean 300hp or a hot and smoky 400hp. There are other turbo's on the market like a K27 or a SXE362 that are a little more bolt-on if that interests you. The k27 is between a HX35 and a HE351, and the SXE362 is a little bigger than a HE351, so it will spool a little later in the RPM range, but support more HP as well..
