geoguy1369

iTrader: (2)

Has anyone on here used any of the holset turbos on there cars??? I have a hy35 on my geo and its a great turbo a little laggy for the small motor but that was part of the goal. I have what i think is a hx52 or hx55 not sure the plate for id is missing but i paid $75 and it has no play and looks to be fresh rebuilt. ANyone tried any of the holsets even on a 5.3 or any of the lsx??? Thanks

geoguy1369

iTrader: (2)

it has like a 68mm inducer and i think 100mm exducer with a t6 housing

killernoodle

Not quite a t6 flange though, you have to oval out some of the bolt holes.

I have a friend with a LS2 GTO with an HX55, it spools pretty quick. He has the billet titanium comp wheel version, which is pretty nifty.

The turbo's frame is pretty huge compared to the size of the wheels. What are the measurements on yours? They seem to vary pretty considerably.

geoguy1369

iTrader: (2)

With the housings on the best we could get was 68mm intake wheel and about 100mm on the exhaust wheel. Ill try to get a pic post

geoguy1369

iTrader: (2)

here is some pics. and i should say the best i can guess with the size is it is a hx52 or hx55 cant find any solid info to id it sice the plate was miising off it

thePunkville

ive got one too, wondering what power its good for!

geoguy1369

iTrader: (2)

if its a hx52 or hx 55 they flow about 95-98lb/min so should be good for atleast 600whp. i have seen as much as 900 online though

geoguy1369

iTrader: (2)

noone has an idea on this???

geoguy1369

iTrader: (2)

It looks to me that the exhaust side is plenty larfe enough to support say 500whp and from the flow rate it seems like it should be good for a bit of power. Ive been told that this is about the same flow rate as a garrett gt45 turbo if that helps anymore with size wise.

buktooth

I got a newer style hx55 im putting on a lq4 with l92 heads. I will let you know how I make out, but dont hold your breath because like everthing else its going to take me a while. I have almost all the parts but no time to do it. I'm looking at late winter /early spring.

TurboMark8

Tear it apart and measure the inducer. I'm going to most likely be running two hx52's on my audi build

Cronic_Moronic

What size is the turbine housing? It should be cast in... 12cm is likely a hx52 ,larger and it is likely a 55.

The only real info I have found on using hx52s on gas engines is a few DSM guys using them to push 600ish hp at 30lbs. It should work fine on a larger v8 but as of yet I haven't found anyone that has tried it. I'm planning on giving a hx52 a go on my 98 z28 but I have to get everything else in line first.

tripblackls1

iTrader: (11)

I had one worked well but traded up to a on3 t76 that spools much quicker

buktooth

I measured mine a while ago and I got 63mm inducer
97mm exducer
Turbine 76mm . I didn't have the exhaust side off when I measured.

99pgpgt

the holset hx52 has a few different exhaust housing, mainly either a 16cm^2 or an 18cm^2..

I'm using one for my 3800 build, I plan on running 16-20 lbs on it. They are great turbos to use being a journal bearing. They can be had for cheap and last forever.

The only beef I have with them is the wacked out measurements of the outlet and the inlet flange.

The outlet vband measures 3.5" id and 4.75" od....soooo, in order to overcome this, I am using a 4" id and 4.75" od flange welded to a 4"-3" reducer.

The inlet flange is a T4, yet the bolt center to center length long ways is about 1/8th-a quarter inch longer.

Turbo2L

iTrader: (1)

The inlet flange is a T5 and you can have the OD of the hotside discharge turned down on a lathe to a standard 4" OD flange or cut it off and weld on a new one.

99pgpgt

I thought about throwing it on my lathe, but i dont mind doing the 4.75" od flange lol

umm are you sure on the t5? because im not getting a T5 measurement on mine..I ordered a flange from a company that is specified as a flange just for a 52

ohitburns

I used 1 on my Pontiac G8 GT. It works great even as a rear mounted turbo setup. It spools by 4k even 17ft from the engine. I ran 7 LBS of boost and on virtual dyno software it was right at 500whp and 460ft lbs with only 9 degs of timing. The exhaust housing is a 16cm2 which someone said would be to small for a 6.0L but I ran out of RPM before the turbo ran out of steam. The dyno chart showed WHP climbing when it shifted at 6200. I did have it boosting higher but ran out of fuel before the car hit 4500RPM. Anyway to answer your question and bring a old topic back yes hx52 works on v8 engines and I think it works well.

geoguy1369

iTrader: (2)

I'll look when I get home to see if I can find a cm on the hot side. This will be going on a pretty much stock 4.8 with maybe a cam and gasket matched heads

Ilove7s

iTrader: (2)

That holset looks like one of the Chinese knock offs. I run a holset hx52 on my iron 5.3 with an ls6 cam, boost is a little laggy but when it hits it hits hard. I'm on 12 pounds and made 571 to the rear wheels threw a t56 and a 410 rear end. If I remeber correctly the cold side SHOULD be a billet wheel.and if you do have the 16cm housing it will be roughly a 1.21 A/R.