Ive seen a few people on here have used HX55s, and some have reported 1bar under 4000rpm which is decent, but what was your HX55s spec?

Ive just picked up a brand new one for next to nothing, but is a fairly odd spec, and wondered if others were the same.

Divided T6 turbine, 25cm- Big turbine for 1bar by 4k on a 13B? I thought they were T4 too TBH.

Compressor has what LOOKS like a anti-surge compressor housing, but there are no slots cut in to it? Is that normal for one? Can I get the slots cut?

Ive not took the housings off to measure the wheels yet, but so far was this like the ones some of you guys have used?

This one is off a Volvo of some sort BTW.

 

Measured the wheels, its the larger of the two HX55 comp/turbine sizes that seem to be listed.
65mm inducer with 100mm exducer, that seems to be rated 950bhp, which seems crazy for 65mm but Holsets and BWs are both the same it seems where they flow huge amounts in comparison to Garretts for their inducer size, somehow.
Turbine seems to be about 86/80, but my digital calipers started playing up then so not 101%.

 

i have a holset a hx52, it has the 16cm turbine housing, 67mm comp wheel and 70mm turbine wheel. it is also for sale if anyone is interested. these turbos spool very well, not to sure what a 25cm spools like but im sure you will find out.

 

this is the anti surge housing, the little beveled ring is a silencer ring, if you remove it, it gets very loud, like a semi truck on steroids.

 

the holes are behind the silencer.

 

I wish my HX40 sounded like a semi on roids and why you selling hkp?

 

Mine hasnt got a silencer ring or even provision for it, not all Holsets do for some reason.
There certainly no need for this one as the ports for the MWE hasnt been cut, again something ive seen before but I dont know why theyd do that.
Looks like a fairly easy job for a machine shop to cut them in though.

Im mostly interested to know from any HX55 users on here what size and frame exhaust housing they used, as said, mines a 25cm divided T6.

 

Back to the top as I know some HX55 users are on here, but cant find a single post mentioning much about them!

 

You might want to look at the new Pro-71. 71mm inducer on a smaller 52 frame. My buddy runs one on a DSM and its awesome.

 

the 25cm is gonna be laggy, its great for top end power as the power doesnt fall off but don't expect to get full boost under 4k, more like 5500 rpm.