What else is needed for HX35?

[nfernotalon]

With the lack of mitsu bep housings out there, I think that I may be going this route too. I wonder if there would be any success if someone were to weld a divider into a dnp or even the eBay t3 manifold. I'll probably pickup the eBay housing and blockoff the wastegate tube and stay with the stock internal wastegate for now. I've had my hx-35 sitting in the garage for months now and am itching to get it installed.

Also for me it came out about 100bucks cheaper going t3 set up and external wastegate, rather than buying the BEP housing and staying internal.

 

[dsm-onster]

With the lack of mitsu bep housings out there, I think that I may be going this route too. I wonder if there would be any success if someone were to weld a divider into a dnp or even the eBay t3 manifold. I'll probably pickup the eBay housing and blockoff the wastegate tube and stay with the stock internal wastegate for now. I've had my hx-35 sitting in the garage for months now and am itching to get it installed.

If you weld in a divider it would pair the cylinders wrong. The exhaust pulses would see a very small volute (half of hte hx35 twinscroll housing). But you would still get no benefits from backpressure not affecting overlap and no benefits from isolating the hot gases from the cold aircharge. You would just be trading flow for spool and your turbine housing would act like a more efficient 6cm^2 MHI turbine housing. You would have to divide alltheway up to the wastegate or run two gates. You're probably better going to ace stainless and getting some butt weld elbows and chopping off the flange from a spare cracked 1g exhaust manifold or something and welding up your own, if you want a good twinscroll setup. Although with this manifold, if you weld in a divider, you could also crisscross either the 3 & 4 runners or 1 & 2 runners, then you'll have a proper twin scroll setup. You'll still have to tackle the wastegate issue.

The stock internal gate is too small and the actuator spring is too stiff and the chamber is too small. Other's have tried it and it won't open until 30ish psi, even when using the BEP housing with it's 38mm flapper and much more backpressure.

 

[rampridersrider]

So you didnt need the spacer with the ebay manifold right? Also did it stay that same color or it did it burn off as soon as you started it? i just ordered the exact same one for my HX35. Why did you have to reweld the external wastegate flange on the mani? Where did you get your oil feedline from?

Nope, didn't need the spacer. The manifold is that pretty blueish color now. Which is whatever. I don't plan to run the manifold for forever. The wastegate flange that was on the manifold was for a 4 bolt wastegate like the Tial 40mm, I have a Tial 35mm so I had a new flange welded on. The oil feed line I got from a local shop. Its just a 24inch -4 an stainless line with a 90 fitting at the top.

 

[selmerguy]

I run the sme manifold with great success. It did finally crack a weld the other day. Went 5 years or so though. The weld that cracked was the inner wastegate tube weld. My gasless mig fixed that with no problems though and it is holding fine. Looks great mang.

 

[Ravenous]

Well shoot, it was worth a shot. I guess I will be going with the ebay t3 manifold and an ebay external wastegate (ala dsm-onster) with some extra fab work to recirculate it into the o2 housing. Maybe when I am completely debt free I will spring for a jhracing or shearer setup as I would really like to have the quicker spool and reap the twin scroll benefits.

 

[dsm-onster]

Both only do t4. But I'm sure you could call them and have them custom build a t3 flange manifold for you.

. . .Well, I'll spill the beans. I'm toying with building more of my t3 twinscroll manifold. I don't have any numbers on it yet. Since i'm waiting for my wiseco pitsons and eagle rods to come in. But it will still allow the stock fans/radiator to be used. I think the prices these guys charge for manifolds is redonculous. Once you have the jig and the process down, there's no reason to charge over $500 for a manifold just because it is a divided runner type.. . . My point. If you can weld a divider then you can weld you own manifold. Take a look at doing that and saving the rest for a SMIM and water/meth injection kit, or another whole car as a daily beater while you build your dsm.

 

[rampridersrider]

Both only do t4. But I'm sure you could call them and have them custom build a t3 flange manifold for you.

. . .Well, I'll spill the beans. I'm toying with building more of my t3 twinscroll manifold. I don't have any numbers on it yet. Since i'm waiting for my wiseco pitsons and eagle rods to come in. But it will still allow the stock fans/radiator to be used. I think the prices these guys charge for manifolds is redonculous. Once you have the jig and the process down, there's no reason to charge over $500 for a manifold just because it is a divided runner type.. . . My point. If you can weld a divider then you can weld you own manifold. Take a look at doing that and saving the rest for a SMIM and water/meth injection kit, or another whole car as a daily beater while you build your dsm.

If you decide to build a few then let me know.

Lol, my daily driver.

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[nfernotalon]

Both only do t4. But I'm sure you could call them and have them custom build a t3 flange manifold for you.

. . .Well, I'll spill the beans. I'm toying with building more of my t3 twinscroll manifold. I don't have any numbers on it yet. Since i'm waiting for my wiseco pitsons and eagle rods to come in. But it will still allow the stock fans/radiator to be used. I think the prices these guys charge for manifolds is redonculous. Once you have the jig and the process down, there's no reason to charge over $500 for a manifold just because it is a divided runner type.. . . My point. If you can weld a divider then you can weld you own manifold. Take a look at doing that and saving the rest for a SMIM and water/meth injection kit, or another whole car as a daily beater while you build your dsm.

I agree with you the prices are waay ridiculous.WTF