I was interested if anyone has had longevity on the street with one of these.
I used one a while back but had draining issues.
Also what size of hot side works well on these- I th.ink they are smaller a/r than
garretts. I was intereted in a hx50- any info apperciated

 

I'm using an HX-55. Spools faster than the GT42 I had before it. Inducer is a 72mm. Made 600HP on the HX55.

Anthony

 

would these bolt to a T4 manifold? friend of mine has a decent sized (stock) holset turbo on his cummins Dodge Ram diesel

 

What you are talking about is a HX35 of some variant through the years on the cummins..... Not sure what footprint a 55 is, but the 35's/40's are a t3 footprint

small turbine vs the compressor

 

Yes

 

no........... a hx35 is not a t4 footprint, it is a t3

 

I was referring to the hx55.

Anthony

 

gotcha

do you have the specs of your 55 handy? i was wondering what the turbine ind/edx were and comp edx?

and what turbine housing are you running? like a 23 or larger?

and what hotside were you running on the 42 that you are comparing the 55 against

 

I know the HX55 has a 72mm inducer and a pretty large exducer, almost the same size as the GT42 I had.

The hotside of the GT42 was a 1.01 and the front was a 76mm.

Anthony

 

thanks

 

this is good to know, i'm a huge fan of the holset turbos. we use them on piston engines a lot but i have been wanting to try one on my rotary

 

does anyone know how to convert from a cm^2 to a/r?

and what the actual dimmensions of the hx55 turbine are?

I have always read that holset flow maps match that of other larger turbos

 

found this guy on ebay... seems like a pretty smoking deal. http://cgi.ebay.com/ebaymotors/Holse...spagenameZWDVW

 

dont the holset turbos have a reverse turbine housing?

 

Jeusus, i just had the dimensions today but didnt print them

You can get either a 67 or 72mm comp inducer, i believe comp exducer is just over 100mm. exhaust is a 77mm exhducer on both, i don't know inducuer, dont belive i ever saw it

I was on turbomustangs.com (i think) and read a few posts that all pointed at getting an hx50 or hx55 from here http://www.timsturbos.com/ and they all mentiond a new rebuilt price of just under 600 for the unit

no idea's on a/r stuff though

-Jacob

 

ht denotes reverse rotation vs your typical hx

thanks jacob for the info

I come up with turbine inducer of 75mm on a Gt42.....

maybe a cheap alternative to a gt42..... and still being able to keep it T4 as that is the draw back to some on the cheap brog warner units.

I wonder if the turbines are up to the task of rotary egt's though??? as they are a diesel turbo

only ask because i have turbine melting issues on my current gt42

 

what are your pre-turbine egt's and how much timming you running? lack of advance due to the highcomp rotors met there match possibly? just speculating

 

no egt gauge for me

i think my problem was that i was using antilag alot, and i had it tuned very lean in the cruising region..... im not too sure though, need an egt gauge

It did do a number on the turbine wheel though...... i heard rumors that the gt42 didnt have the typical iconel wheel.

 

If you're running a 13b a Holset HX35 or the slightly larger HY35/40 are perfect for the CFM of that motor. If it is something that has larger displacement, say you have a small block swap, or a 20b even, then that added exhaust turbine size would be beneficial.

I personally am going to run a HX35 on my turbo civic, it has been called the King of Junkyard Turbos, with good reason.

Take a look at the compressor maps. Seriously a wide range efficiency turbo.

 

I am definately positive the 13b will handle and love the hx55 turbine .........
its no dinky out of breath 1.8 vtaaaaaaak

i do agree they are good turbos

 

good info guys, I ran the sr holset several years ago and man did it spool.
I may try one again someday.

 

"An NA 13b, with 95% volumetric efficiency, at 8000 RPM, flows 352 CFM. Using the same 13b, with 95% VE, at 8000 RPM, and 5 pounds of boost flows 472 CFM. 7.5 pounds of boost flows 531 CFM, 10 pounds of boost flows 591 CFM, 12.5 pounds of boost flows 651, CFM and 15 pounds of boost flows 710 CFM. These numbers are not meant to indicate that a 13b runs at 95% VE, or that a particular turbo produces a certain amount of boost at 8000 RPM"
-Rotary News

"The B18C straight out of the box flows an amazing 341+ cfm at it's 8,500rpm redline..."
-"What makes VTEC so useful" AutotrendUK

Man it's miles behind, especially against a motor with an inherent design that flows almost double it's actual displacement.

But that's apples and oranges, "top of the line" Hype ARRR motor against the base 13b. I run a 1.6L non-vataaaaackk so I took no offense to your comment "1.8" comment any way.

Good turbo's though; unless you get a deal on the 50 or 55 grab a 40 or 35 for ~$150 and be happy with full boost from 3k all the way to redline.

 

First off it was a joke,

I have been around my fair share of turbo'd civics. Do you think you can fully spool a gt42 by 5k without some aid? simply no, but i can


"And if you are going to buld a honda why not actually build a worth while engine, that is in actual sports car, not a 100lb FWD econobox..............f20 s2k"
-Zac Brown

Found some wheel sizes


Comp/Ind Turbine/Exd
Holset H1D 47 55
Holset H1D 50 55
Holset H1D/E 50 55
Holset H1D/E 52 55
Holset H1D/E 54 55
Holset H1C/E 54 57
Holset H1C/E 58 57
Holset H1C/E 54 60
Holset H1E 56 60
Holset H1E 58 60
Holset H1E 60 65
Holset HX40 60 65
Holset HX50 63 72
Holset HX50 67 77
Holset HX55 67 77
Holset HX55 72 77

 

the HX40 wheel is smaller than I thought, but I'm pretty sure they come with a divided housing, which is cool for such an inexpensive turbo of that size. I see brand new ones (HX40) on ebay for like $300-400, and they do say "Holset" on the side so hopefully they are not knockoffs

 

2nd attempt to type this up. Stupid computer.

Are you sure the HX35 is a T3? I believe my SR stage 2 is a T4, as it fits on a Excessive engineering T04S manifold. I always thought that the HX35 (External wastegate style) and the SR stage 2 where one in the same?

My FD see's full boost between 4k and 4.5k in 3rd gear. Mods include 3.5" exhaust, power FC, GZ LIM, m2 medium IC, etc, etc. CJ