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Old 11-10-2011, 02:07 AM   #1
em1bugeye
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Default holset hx-35w vs hx40w..whos running them?

so Ive decided to maybe steer away with the 35r option and try out a holset turbo. with the price and how they are suppost to flow, it seems like a decent idea. is there anyone over here running one of these 2 turbos? and i realize that it would need to be converted from a TS exhaust housing to a single scroll T3 housing. and which one is worth it. ive been on these cumming forums all night and they flow from 52lb/min all the way up to 72lb/min depending on the compressor wheel. BEP sells the t3 housing so switching from ts to singlescroll isnt that bad. but whats to be expected from a 2.1l and power. i just wanna know whos running one of these turbos and whats to be expected. chime in people. thanks. a lot.
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Old 11-10-2011, 08:20 AM   #2
albersondh
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For a 2.1L I would do a HY35W, smaller (9cm) turbine, but same compressor as HX35 (12cm). For more a bit more top end with more lag I would do a HX35W. The HX40 with a 7 or 6 blade wheel is a 60x86mm turbo and flows about 69lb/min (8 blade is most common and is a 58mm wheel). If I remember correctly most HX turbines are mostly 16cm with some rare 12cm housings floating around. So the BEP housing swap would be a good idea.

If your looking at this from a cost prespective, dont forget to factor in a custom up/down pipe, inlet, IC plumbing, ect..... If you cant make all your own parts for just the price of materials, you wont save any money vs going with an off the shelf GT series "kit".
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Old 11-10-2011, 12:31 PM   #3
em1bugeye
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yea i already have a vband downpipe to fit it. and my up pipe adapter flange i just rewelded to fit a t3 housing. so all i have to do is adjust the downpipe a little bit and reweld it to fit a little more proper then it will work itself out. im currently rotated, im just changing the setuo up. and yes, im looking at this from a cost perspective haha, and i made all my intercooler piping from the last setup and i have pipes to spare. so im down for pretty much anything at this point.
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Old 11-10-2011, 02:16 PM   #4
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im going to be running a HX35 with a .70 BEP housing on my 08 wrx

their are only 3 other guys running holsets right now here is a Quote from a previous post of mine with some info and links to other holset builds

the dsm guys use them alot and have alot more info on their forums then you will find here


Quote:
Originally Posted by johnt2k7 View Post

im in the process of a holset build right now using a HX35W off of a 98 cummins. MY turbo build on 3GWRX.com
i did a full rebuild ( blasted and cleaned everything and put in all new bearing's & seals) and put on a new BEP .70A/R Turbine housing (T3 to vband). Thats about as far as i have gotten. other then i have all my flanges and wastegate but nothing has been fabbed up yet to get it any closer to the engine.


their really isnt a whole lot of info on holsets here on nasioc i believe only 3 currently running them and maybe a few more in the works like myself. but everyone has a different turbo so far.

albersondh is running a HE351CW on a stock 08 EJ25 wrx eng and trans.
General is running a HY35 on a stock 02 EJ20 eng and sti 6 speed trans
Kotir is running a HX35W W/OE Dodge TS Turbine housing on a JDM EJ207 swap W/JDM TS Manifold

check out the custom welding and fab section for custom rotated setups to find out some more info on what needs to get them on the engine

Holsets are well know turbos over in the DSM/4G63 world. so do some dsm forum surfing.they have alot of info on the differances between all the holset turbos and how they respond.
dsmtuners.com/HolsetPart-8
hope this helps and i have high hope for these turbos, they out flow and out spool the GT35R and are dirt cheap if you are willing to buy used and rebuild. and BEP has billet wheels for both the 35 and 40 and have Mitsu, T-3, and T-4 housing in all different A/R's

Last edited by johnt2k7; 11-10-2011 at 02:23 PM.
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Old 11-10-2011, 04:53 PM   #5
bugeye1257
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running a holset hx40 over here!
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Old 11-10-2011, 05:20 PM   #6
albersondh
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Mines on an 07 6mt and R180 now. A not so known thing about the HE351CW, the wheel is the same specs (ind/exd) as the 7 blade HX40, but with a smaller 9cm turbine housing and forward facing compressor outlet (nice for FMIC plumbing).




Lest see that HX40?

Last edited by albersondh; 11-10-2011 at 05:26 PM.
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Old 11-10-2011, 05:32 PM   #7
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does an HX55 count?


Just teasing though. It's not running nor will it be in that location.

Last edited by 3MI Racing; 12-20-2012 at 04:35 PM.
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Old 11-10-2011, 05:33 PM   #8
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heres pics of the hx40



and yes i know the maf is on backwards on this pic lol

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Old 11-10-2011, 06:17 PM   #9
em1bugeye
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omg....all of these compressors are fu*king huge...and to the guy running the volvo SEMI TRUCK turbo....i wanna shake your hand for attempting to fit it haha. seems like it can be done. so with all of you, whats the results of these turbos because even for the size, they are suppost to spool pretty quickly comparred to a lot of rotated turbos. and im guessing all of you have the BEP t3 housings then? or are their multiple housings for this turbo option.
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Old 11-10-2011, 06:20 PM   #10
em1bugeye
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because now im getting interested in the hx40 if the response is worth it. but it seems on a 2.1l, its stil gonna be laggy as balls. unless you guys tell me otherwise. what is your boost target and what rpm does it hit?
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Old 11-10-2011, 06:31 PM   #11
albersondh
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Mines on the 9cm Holset housing and I dont have any complaints... I went with 910cc injectors and a 255, pretty much a bad joke, but thats what I had..... Maxing out the 910's (E85) at 24psi.







Consistantly above 420whp on the airboy. Getting engine and fuel parts together at the moment. I want to find the celieng on this turbo and that means north of 30psi. The diesel guys are known to run these at over 30psi for 100k + miles. There is a reason they are OE on a Cummins designed to go 200k + miles between rebuilds. Holset = brick **** house.
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Old 11-10-2011, 06:40 PM   #12
em1bugeye
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^^^^AMEN^^^this is the reason why I got one...it will never....ever....fail. because its a FUHKING BEAST oem turbo. but you have the hx40 equivilant. the one im getting is the hx35w 7 blade. so i think that one is a tiny bit smaller, but i think on 27lbs with 100% meth, i should be at the same power as you, maybe a tad more...hopefully. the one i got has the 16cm hotside, but im switching it. how do u like the spool up range with power. your dyno chart is a bad joke because your hp is through the roof LOLOLOL
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Old 11-10-2011, 08:02 PM   #13
albersondh
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Yea its sad.... In 4th (when I was 5mt) I would see 20+ by 3700, and pretty common to see 20 by 3500. I cant compare it to anything because it is my first "big" turbo. Lag, yes, but IMO its a nice comprimise for a daily driven car. Mild manners below 3500. Above 3500 is a different story, I guess this would be a common theme with any larger turbo, all my experience is with the Holset. The motor Im building for this will top out at 8500RPM and handle boost in the 30's, should be fun.

I got the core and rebuilt it (didnt need it but mehh, I was there sooo).:





Welded stuff up and blended stuff (pre-heat, post-heat, to normalize).:





over night cool down burried in silica to normalize.




9cm bishes


I have a HY35W (9cm) laying around, tore it down and found the WG seat had cracks.

If your interested let me know. Shouldnt be an issue, I imagine you would be welding that area shut and blending anyways, so just fill the cracks while your there.... END THREAD JACK (sorry).
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Old 11-10-2011, 08:39 PM   #14
em1bugeye
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pmd you about the turbo and specs. the hy35 are about the size of a 30r to what i know of, but this looks like a great job on the cleanup process.
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Old 11-11-2011, 10:28 AM   #15
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Quote:
Originally Posted by em1bugeye View Post
omg....all of these compressors are fu*king huge...and to the guy running the volvo SEMI TRUCK turbo...
Good guess. That's exactly what it is. Billet compressor wheel, v-band turbine outlet but a T6 turbine. At least the housing is respectively small. The compressor map flows to roughly 99 lb/min.

So it's going to a front mounted location with a water/air core (as you can see in the same pic).
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Old 11-12-2011, 04:08 AM   #16
em1bugeye
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99lb/min..................so you want like 900ft/lb of torque right? haha ive looked up the hx55 turbos. they look huge on semis..i dunno how your going to even get the thing to even fan up and blow. t6 turbine wheel is super large, even with a small housing, i dunno if you have enough displacement to...I DUNNO. im just going to chime in for some results on your end. haha i hope you spin higher than my motor will...(9krpm)...maybe 11? gonna need it lmao. but im not mad at your turbo being intimidating. but what made you go that route?
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Old 11-12-2011, 12:44 PM   #17
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I have a 2.43L that spins to 10k, I don't think spool will be an issue for the application. I'm actually going to guinea pig upwards of 11k and see if I can't blow things apart

I have to test my new internals limits. Valvetrain is still my fear and still 'off the shelf' stuff.
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Old 11-12-2011, 02:28 PM   #18
em1bugeye
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a 2.43l? spinning to 10k? please explain? u should get in touch with GSC and get some custom valvetrain made. i heard they are pretty good. andthey are in SC, so they are about 5 hrs away from you. i think it would be worth the trip. wouldnt want you floating any valves at 10,500rpms..........
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Old 11-12-2011, 04:16 PM   #19
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I've talked with GSC about an off the shelf component that may be up for the task. We kicked around numbers for about an hour and we're thinking shimming their standard EJ beehive might be up to the task with their S3 cam....maybe.

I've also been talking directly with several valve spring manufacturers.

The engine is just one of my destroked engines, sleeved and punched out to 101.6"
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Old 11-12-2011, 04:45 PM   #20
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I had a HX35 with a 9cm bullseye turbine housing on my old 4g63 dodge colt. 30lbs of boost.. even on a 2.0l... it was AWESOME.
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Old 11-12-2011, 06:47 PM   #21
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im working on putting a hx40 on my built 2.5. The dsm guys have tons and tons of info and specs on the holset turbos. They have been using them for years and know pretty much any and everything about them. check the dsmtuners forum for the 10 or so threads dedicated to the holsets.
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Old 11-13-2011, 04:10 AM   #22
em1bugeye
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Quote:
Originally Posted by rturner View Post
im working on putting a hx40 on my built 2.5. The dsm guys have tons and tons of info and specs on the holset turbos. They have been using them for years and know pretty much any and everything about them. check the dsmtuners forum for the 10 or so threads dedicated to the holsets.
thats pretty much what ive been doing the past couple of days...and im pretty much convinced...best bang for buck turbo imo. so my turbo is a holset hx35w 8blade with .70ar t3 housing. done and done
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Old 11-13-2011, 04:51 AM   #23
em1bugeye
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Quote:
Originally Posted by 3MI Racing View Post
I've talked with GSC about an off the shelf component that may be up for the task. We kicked around numbers for about an hour and we're thinking shimming their standard EJ beehive might be up to the task with their S3 cam....maybe.

I've also been talking directly with several valve spring manufacturers.

The engine is just one of my destroked engines, sleeved and punched out to 101.6"
thats an interesting combination of piston, rod size. i havent seen a 101mm piston either. and to have it spin 11k. havent seen a 2.0l do that. so your rods better be smallllllllllllllllllllllllllllllll. and crack super balancedddd. but obviously, you know exactly what to do. GSC beehives are probably the best for your application. but i think they can make u a set of springs. but you been talking to them so hopefully you can get it sorted. hate to see a beast build go to waste because of weak springs. whats the flow rate of your heads? im sure the VE of your heads are amazing. are you using 2.0l castings or 2.5l heads? what cfm do they flow at? haha im pretty intrigued by your build and turbo selection. whats your goal? HP, or extreme trap speed.
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Old 11-13-2011, 12:43 PM   #24
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the HX55 is just a shake down turbo...since it has zero miles and is free.

The details will be shared once things are sorted. Several custom parts are being tested in the setup. ALL new pistons, new rod material to help shave weight, a few changes to port work and I'll be testing the S3 up against my Kelfords. It'll be a guinea pig setup beyond my old 4340 rods and 2618 pistons. Should shave around 180 grams per cylinder over my old parts.

I'm actually debating on grabbing a set of 205 heads and working them over for the application. I have more control of the combustion chamber then. Otherwise I have a set of B25 heads sitting in wait with the work already done.
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Old 11-13-2011, 03:30 PM   #25
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I'm using a hx35 with 12 cm housing, ultimate racing rotated upipe. Getting it tuned as we speak so really can't say how awesome it is but I will update when it's done.



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