My Holset Build (Big picks)

[Nissan2367]

Instead for posting random pics throughout the forum i decided to just make a thread. I tried to use an Eghey top mount manifold with no luck so i decided to mod the factory manifold for my setup which worked out awesome considering that it was already twin scroll and my turbo was too!

For a turbo i am running a Holset H1C. I have no idea on the specs... sorry.For the stock manifold to work i had to use two 1/2 flanges to "shim" it out enough to fit the compressor so it would not hit the manifold. I know thats nothing new but i decided to weld them to the manifold instead of doing the gasket flange gasket flang gasket because i didnt want to deal with the studs and blown gaskets... picks:I also had to add a 38mm wastegate. i forgot to take pics of grinding the manifold but here is a pic after i welded it on. i also painted the manifold to make it look better. Used paint for up to 1300-2000* that should work!Then the elbow... That was not to bad just had to get bends and cut and weld alot. (thanks Evan for the bends). I also painted the down pipe and heat wrapped it. please no comments on the crap welds on the dump tube... all i had was a flux core welder but it will work. (again thanks evan!)Then here is the full setup... not a whole lot of room left but it was worth it! Its a little bigger then stock but when boost hits it hits hard! And it only takes till about 3800-4k for it to hit full boost (8psi)Let me know if you want any more pics!Now on to engine management and so bigger injectors!

[silviasgp06]

hey thats pretty cool how you set your waste gate up, Im going to have to set mine up the same way here in a few months.

[Cjmartz2k]

Looks nice man. That's the awesome thing about Holsets is the the DIY'ness of them, and how cheap they can be if you can indeed DIY. Those spool numbers are REALLY slow from what I've seen though. I make 1 bar by around 3.6krpm with an HX40 and a 19cm T4 ex housing in 4th gear. What size is that housing?

[Nissan2367]

Damn that kinda sucks... Its a T3 but then again i was guessing the rmp. i have not yet really watched to see when it spools since i put my tach in so ill have to take it out again and see when it really hits full boost!

But thanks for the compliments. I was having an issue with trying to get the gate straight up and getting it far enough forward to not hit the valve cover so i put the 90* bend on. I like how it turned out!

[l0nestar]

Tell me how that header paint holds up after this summer. Everything looks promising. Did you paint the top of your BOV and re-spray the bay?

Also, get a heat-shield for your brake master ASAP!

Judging by the evidence, you let Evan weld that, didn't you?

also, loose the hose-clamps. use T-bolts.
Modified by l0nestar at 10:05 AM 3/30/2009

[Nissan2367]

Hahaha no i welded it he let me borrow the welder!and i will be interested to see how that paint holds up as well. i gave it 3-4 coats but it really does not matter its covered up with the heat shield!And not thats how the BOV came stock... its just kinda weathered.And ill get on the shield.. ill prob have to make one becasue of where that dump tube goes down. Turbo blanket will be a must!

[rcrdps]

Nice. Did you weld the manifold with that wire-feed also? What method did you use? I'm hoping to do my downpipe with my wirefeed and by piecing the Holset downpipe to the stock downpipe. I've been practicing on a piece of it, and it hasn't cracked yet. I weld an inch, and let it cool.

I only have one 1/2 spacer, but I'm using an Hx35. Hopefully it will fit with just one. Someone mentioned cutting off the heatshield mount to make it fit.

You mentioned getting engine management. You're able to run that thing with an open BOV on stock ECU?

What are you using for a boost controler? That might have something to do with the differences in everyone's spool time. I hope to help my spool time by running a sidemount. Want to find an R34 sidemount if I can. They are supposed to be an upgrade from R32.

Gene

[Darius]

That PCV line resting on the exhaust manifold heat shield will turn into a gooey mess if you don't remove it or relocate it.

Looks functional otherwise

[sepulchralx]

thats some messy as fabbing, as long as its functional i guess.

thats a s***ty wastegate, you should really get a 50mm or 60mm

[rcrdps]

thats a s***ty wastegate, you should really get a 50mm or 60mm

Are you judging by size or brand? Is Greddy bad?

Gene

[sepulchralx]

thats an ssautochrome

i run a 60mm ssauto wg, works great

he should have run a bigger size than 38mm thats what peppy little 1.6l hondas run... hell i used to spike on a 38mm on my sr20

[rcrdps]

My bad. I read the name off the BOV.

[240z4u]

thats some messy as fabbing, as long as its functional i guess.

thats a s***ty wastegate, you should really get a 50mm or 60mm

Wow, not everyone has the cash to drop on a lovefab manifold that doesn't fit.

My tial 38mm gate on a properly designed manifold has never crept. Sounds like your boost controller on your SR was setup.

[rcrdps]

One thing I've read about wastegates: Bigger isn't always better. If you're running high boost, you don't need to limit your turbo as much, so you can run a smaller wastegate.

I guess it's one of those things that "just depends" on the setup. If he's not creeping right now at 8psi, he probably won't have a problem further up.

Gene

[Darius]

Bigger gates are not always better. It depends on the use and setup more than hp.

[Nissan2367]

thats some messy as fabbing, as long as its functional i guess.

thats a s***ty wastegate, you should really get a 50mm or 60mm

I am almost sure i put something in there about no comments about the welds on the dump... I would love to see what you can do with a 110 flux core welder and a 10x20 garage... Anyway I have not really heard much bad about ssac wastegates... i got it for 40.00 from a friend and will get a better one some day but so far so good!My goal is 350-400hp so a 38mm will work fine.And the pcv hose now has heat wrap on it... ordered some steel braided too... should work till i redo my pcv system.You will have to cut the lower heat sheild bolt mount off to fit the compressor. I had to use 2 1/2" flanges to fit mine it wouldnt fit with just one... not sure about the HX35Thanks for all the comments...

[Cjmartz2k]

You should be able to make that kind of hp with that turbo no problem. When you get it all installed and everything, you'll have a real good idea of how much room you have to work with down there. HX35 or HX35/40 hybrid should go right on if you have enough room and be good for 500rwhp.

[legit240sx]

haha gotta love that home depot fcaw that shuts off every minute that you run a bead on 1/8", love that 10% duty cycle, hey man if it works fine its all good

[Nissan2367]

I think the one i used was a Harbor Freight but i was impressed on how well it worked! Its not a show car so it works! Its all together and runs awesome! I watched and full 8-9 psi hits at 3500. Thats awesome to me! Next i need injectors and a tune then 400-450 here i come!

[sepulchralx]

I think the one i used was a Harbor Freight but i was impressed on how well it worked! Its not a show car so it works! Its all together and runs awesome! I watched and full 8-9 psi hits at 3500. Thats awesome to me! Next i need injectors and a tune then 400-450 here i come!

Well good luck... i hope you dont have boost creep and expect some quick response with your stock manifold (good low end... not so sure about your top end )

[WhatsADSM]

One thing I've read about wastegates: Bigger isn't always better. If you're running high boost, you don't need to limit your turbo as much, so you can run a smaller wastegate.

I guess it's one of those things that "just depends" on the setup. If he's not creeping right now at 8psi, he probably won't have a problem further up.

Gene

Totally correct.

The wastegate is routing gasses around the turbo so as boost PR raises it actually has to route less exhaust gas around the turbine wheel. So if the 38mm is working for the OP now, it should work fine under higher boost.

Edit: I'd be more worried about using a knock off wastegate brand than the size. I personally don't like to cheap on the thing regulating my boost pressure and protecting my engine.

[Nissan2367]

I agree but i ran one on my 380whp single cam civic for like 6 months boosting 24lbs before i got a Turbonetics for cheap and never had creep or issues! Like i said the wastegate will be replaced someday.

[240z4u]

If your running 8psi with no creep then you are golden. It only gets easier from there.

[sepulchralx]

have your WG dump out after the front tire... itll be hardcore... its what i'm ab to do... aem cuts ignition instead of fuel like the stock ecu.... it shoots fast and furious flames every time i bounce of the limiter haha.

[Nissan2367]

...It alread is behind the front tire... Not to get flames though...

[rcrdps]

You will have to cut the lower heat sheild bolt mount off to fit the compressor. I had to use 2 1/2" flanges to fit mine it wouldnt fit with just one... not sure about the HX35

I tried fitting my HX35 up last night. Looks like it's the same. To route the compressor outlet up like you have it, I'd need another spacer. I might try routing it down. I saw where someone did that. It will fit with one spacer that way. Might be hard to route the intake tubing though. There are a bunch of lines down there.

Gene

[Nissan2367]

Yeah thats what i noticed too. I also wanted to use the pipe kit i had so i needed to have the compressor face up like stock. I think it would be quite hard to make it point down so you might as well just get another flange!Good luck man! It fun to drive it with a real turbo on it haha

[rcrdps]

Yup. Just ordered another flange. It definitely won't fit with the outlet routed down in my car. The AC lines get in the way.

Did you weld the flanges to the manifold with your wirefeed?

Gene

[xibeacx]

are you sure that stock header isnt it galvanized?.and arent those plates metal?.how are they supost to stick, even though it sticks after a while wont it brake off??.

or i might be wrong

[wrgibson]

are you sure that stock header isnt it galvanized?.and arent those plates metal?.how are they supost to stick, even though it sticks after a while wont it brake off??.

or i might be wrong

Stock header is cast.

To the OP: How does that thing run with the holset on there without upgraded injectors and a tune and whatnot? Are you running a wideband to monitor afr's? I've got a HY waiting to go on but I thought I'd need the aforementioned upgrades to run it safely.....am I wrong?