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Old 11-22-2008, 08:52 PM   #1
GeneralTJI
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Default General's Custom Rotated Holset build (PICS)

*Update and new pictures on post # 48, thanks

*Update and new pictures on post # 56, thanks

*Finished the build, post #104!! thanks



Been working on this for a week or so... Decided to make some changes / upgrades. First step was building a front mount system that will have very short piping. I had to cut a lot of crap out to make room for the couplers on the sides of the radiator... and I had to cut the hood latch beam out and go to hood pins (that part kind of sucks, but the clean look up front is nice). A few brackets and spaces later and I have a 24" x 12" x 3" IC up front!

Second step was turbo choice... I have been doing a ton of reading / research on what to go with. I ended up buying a Holset HY35 turbo from a 2002 Doge Cummins pickup. These turbos are amazing... they offer great flow and abnormally quick spool from what I understand. The HY is from an automatic truck and has a smaller exhaust housing vs. the manual trucks. Mine has a 9cm housing which is about a .65 AR in Garrett terms. The compressor is huge and from what I read flows more than a gt30r compressor without trouble. Although, with the smaller exhaust housing it's unlikely the compressor can be maxed out. These turbo's also use a standard T3 footprint, and unlike the HX35 (manual truck ~ 12-14cm) turbo which has a divided inlet, this HY has a single inlet which will work better with my Rotated Adapter I built.

I tore the turbo down... cleaned everything, welded the wastegate shut, sand blasted and painted the compressor housing, and then stuck it all on the car today. Amazed it fit, considering I built the t3 adapter flange for use with the t3/t4 I had previously. Building a new downpipe will be some work, and I still have to built the IC pipes... but it's starting to come together. I bought that KS-tech MAF adapter flange so I can go blow-through now as well.

Here are some pictures of the current progress I've made... I really hope my poor motor will survive this turbo for a while, after all this work I don't want to tear it apart right away!









Thanks for looking / comments !!!
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Last edited by GeneralTJI; 12-05-2008 at 11:39 PM.
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Old 11-22-2008, 09:02 PM   #2
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i love it!!

what block are you using?
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Old 11-22-2008, 09:04 PM   #3
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Poor little 2.0 stock with 170k miles!!

I have another block, bc cams/springs, cp pistons etc. already.. collecting the rest slowly.. it's only a matter of time
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Old 11-22-2008, 09:06 PM   #4
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Damn Todd! I like your style
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Old 11-22-2008, 09:09 PM   #5
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rep that SRP too!

love the originality of the turbo swap. looks good. i'd love to see some after pics once everything is complelty installed
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Old 11-22-2008, 09:30 PM   #6
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i love it!!

Im running a 2.0 with a huge turbo also =)
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Old 11-22-2008, 09:49 PM   #7
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Quote:
Originally Posted by deebee8 View Post
i love it!!

Im running a 2.0 with a huge turbo also =)
What tu4rbo are you running?
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Old 11-22-2008, 10:14 PM   #8
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Dude you are the DIY man!!! I saw and saved your youtube videos weeks if not months ago and you are a real inspiration to the poor diy modders out there that wish perrin would FOLD!!
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Old 11-22-2008, 10:24 PM   #9
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Quote:
Dude you are the DIY man!!! I saw and saved your youtube videos weeks if not months ago and you are a real inspiration to the poor diy modders out there that wish perrin would FOLD!!
Thanks!!!!

I appreciate the comments guys....

I'm very anxious to see how this compares to the t3/t4... supposedly these Holset's spool quite quickly considering their size.

Quote:
Im running a 2.0 with a huge turbo also =)
Nice, what are you running?
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Old 11-23-2008, 02:37 AM   #10
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Default not too sure

ill tell you one thing that turbo has an insane range to it! i run an (hx 35 )on my dodge diesel right now for the mileage (really good eficiency),hy is too small not enough flow on the exhaust side. but i have tried tons of turbos and it(hy35) spools so fast. my only concern is it spools fast on a 360 cu.in. motor that moves massive amounts of air. the cylinders in the dodge are almost a liter per cylinder...but my turbo does lite off at about 1600 rpm. i currently push about 40psi max on this turbo so you can boost it to heck and back on a 2.0 and never hurt it.......let me know how this goes as i love the holset turbos and the only turbo i prefer to it is a schwitzer s300 but that may be a little much

still think some one should do a twin turbo setup with stock turbos for each bank on a 2.0
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Old 11-23-2008, 04:52 AM   #11
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I'm thinking I may have to upgrade to an HX35 when I finish building the cam'ed motor... guessing the smaller exhaust on the HY might choke it out... and the extra lag of the HX would be do-able considering the shift to the right in the powerband. Though we will see... the HY still has a slightly larger exhaust vs. the t3/t4 I had, so for now it should push plenty of air.

I also have a WH1C ...(basically a v-band version of the early 8 blade HX35 for those who arn't familiar).... though I think I'll sell that off since I went with an HY for now...
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Old 11-23-2008, 05:48 AM   #12
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Upon viewing the first picture I immediately thought that you needed the rest of the turbo... then you found it. The rest looks pretty nice though... nice and crazy. I wouldn't expect that to fit in there, it looks quite a bit longer than the GT30.
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Old 11-23-2008, 08:54 AM   #13
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Default real power

if you want more juice look into a hx4o/35 hybrid turbo. i think you can get one on ebay...lightning spool and massive air. ran an hx40 for a while and it pulled really hard but had a little lag that i didnt like. but i hear that with the hybrid you get the pull of the 40 with the reponse of the 35. on a subaru...........omg youll need a 5 point harness and a neck restraint when it starts to spool.

youll probably have to buy new seats too since it will throw you back so hard youll probably end up in the back seat
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Old 11-23-2008, 09:31 AM   #14
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That mother is gonna whistle like a damned tea kettle going down the road! I'm guessing lag city, but I guess you'll see. Nice modding, but you might consider some Thermotec turbo wrap for that....it's only $35 from Jegs and takes 30 minutes to install.
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Old 11-23-2008, 09:43 AM   #15
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Default ........really?

huh going down the road huh?
wrong!!!!!!!!!!
maybe at take off but once that thing spools (going down the road)it will be heck on wheels. isnt that going to be fun!!!! if you work the gearing right you should be fine and the spooling is really a trial point right now.
i really hope your motor will hld up to this monster

im thinking definitely forged rods in the future

best of luck man and dont let the haters get you down!!!!
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Old 11-23-2008, 11:54 AM   #16
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Quote:
Originally Posted by centeno711 View Post
huh going down the road huh?
wrong!!!!!!!!!!
maybe at take off but once that thing spools (going down the road)it will be heck on wheels. isnt that going to be fun!!!! if you work the gearing right you should be fine and the spooling is really a trial point right now.
i really hope your motor will hld up to this monster

im thinking definitely forged rods in the future

best of luck man and dont let the haters get you down!!!!

. Nobody's hating, in fact he's gotten nothing but love. And yes, turbos whistle, even off-boost. It's still spinning, if not making POSITIVE boost, and something tells me the intake will be BIG as well. A turbo that big will be especially loud, and nobody said that's a bad thing.
Even my 16g with a CAI is whistling audibly at anything over -2 PSI, so driving around, yes it will be loud.

If you don't know what you're talking about, keep it to yourself. kthx.

Last edited by Audiosavvy; 11-23-2008 at 05:34 PM.
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Old 11-23-2008, 12:42 PM   #17
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You know, I ended up wrapping my stock mani to t3 adapter plate shortly after those pictures... partially because the oil drain line runs quite close to it- and I'd hate to melt that hose But also of course to try and keep the heat in... It's nice not having to worry about underhood heat issues as much now without the TMIC though.....

Still haven't wrapped the turbine housing though... I would really like to go with a turbo blanket, but they are just a little pricey
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Old 11-23-2008, 12:58 PM   #18
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When do you expect to have that beast up and running? I'd love to see some graphs of the power curve, even though you're at altitude.
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Old 11-23-2008, 03:09 PM   #19
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I'm thinking at least a week... maybe 2 weeks at the most I hope... Still have to build all the intake piping, start tuning my first blow through Subaru... little misc. crap- you know how that adds up...

Thanks,
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Old 11-23-2008, 03:23 PM   #20
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general. how much was your holset turbo? ino someone that could fab up the down and up for me cheaply this seems like something id wanna try. Let me know the details thanks
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Old 11-23-2008, 03:27 PM   #21
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I'm glad im not the only one using underwear-rags
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Old 11-23-2008, 03:32 PM   #22
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Paid $200 for this one... I waited about 2 weeks before that one came along, which isn't too bad. I also paid $200 for the WH1C but it's not in as nice of shape as this HY....

My HY wasn't perfect either however, the v-band that holds the turbine housing to the center section was broke, so I had to fix that.. and it needed to be cleaned etc. It also didn't come with the short 4" downpipe and v-band section most of them come with, so I am going to machine up my own v-band to fit the back....

I didn't mind these issues though because it has very little shaft play and no signs of oil leaking past the seals etc. So overall- a good deal.

You can pick these up anywhere from $200-450 in pretty good shape and regardless it's a good deal. There is a LOT of custom fab involved is what steers most people away from going this route. But these are good turbos, lot's of DSM and Honda guys have had amazing results using Holset turbos.
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Old 11-23-2008, 03:35 PM   #23
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deebee8 is going to be running this monster
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Old 11-23-2008, 03:56 PM   #24
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Quote:
I'm glad im not the only one using underwear-rags
Just saw your post.. I wondered if anyone would notice
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Old 11-23-2008, 04:30 PM   #25
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Quote:
Originally Posted by axelthrasher View Post
Upon viewing the first picture I immediately thought that you needed the rest of the turbo... then you found it.
He just forgot, I think he's kinda new at this turbo stuff
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