turboboy4 said:

Does anyone know if this flange will work to bolt up to the stock exhaust side of a 12cm twin scroll housing or does it need to be the one that they sell on ebay.
Ebay Flange 1st and ATP Turbo 2nd

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The flange that came with my Hx35 looks like the one in your first pic, the ebay one. I'm not saying the other one won't work but the stock holset piece looks like the first one.

On another note, Does anyone know where to get a gasket for that flange to bolt to the hx35?? I have searched for hours on the internet and haven't come up with anything.

after everything Ive read i am glad i opted for the hx40 pro 6 blade. i want to brake stuff....

Gstclipse69 said:

The flange that came with my Hx35 looks like the one in your first pic, the ebay one. I'm not saying the other one won't work but the stock holset piece looks like the first one.

On another note, Does anyone know where to get a gasket for that flange to bolt to the hx35?? I have searched for hours on the internet and haven't come up with anything.

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I would try calling some Diesel shops like Gillett Diesel or High Tech Turbo. They will usually carry anything in regards to these turbos you may need. I was even able to find a v-band flange for that pesky, non-standard sized v-band on holsets through them. Local diesel shops should also be able to get you what you're looking for.

For the past several months that I've been driving my car I have not been able to get more then 25psi out of it. I just wanted to post what I figured out and that I'm an idiot. I had the boost controller on backwards. Now With it properly installed the turbo seems to spool up quicker and the boost hits harder. Now Im running 26-27psi and itching to turn it up more. The hx35 was fun at 20 psi, It woke up at 24-25 psi and now just at 26-27 it feels like a pikachu evolving . Im hoping to run 29-30 psi by the mid of the season if it holds up. This turbo is just wild.

Also wanted to note that when I first fixed the boost controller I made a pull after I thought it was set right and noticed the boost gauge had hit 40psi during a pull up to 6500. It pulled so violently before I realized what was going on. I wasn't datalogging but my afrs was still 11.5 and the car never sounded so violent. I almost cried when I lifted hoping I didn't break anything and its been about a week of daily driving since that boost issue and all is well.

Gstclipse69 said:

On another note, Does anyone know where to get a gasket for that flange to bolt to the hx35?? I have searched for hours on the internet and haven't come up with anything.

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I have some. They're used, but they're just thin stainless so I don't see where they wouldn't be re-usable.

BleedingSilver said:

The hx35 was fun at 20 psi, It woke up at 24-25 psi and now just at 26-27 it feels like a pikachu evolving . Im hoping to run 29-30 psi by the mid of the season if it holds up. This turbo is just wild.

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The HX35 becomes a different animal above 25psi and continues to move air above 30psi from the examples I've seen. There's literally no stopping these units....aside from an oiling issue.

The day I received my stuff.


Some Pics. Fabricated by red jack racing. two way up.













Might add another bung.

GOD I love twinscroll!

dsm-onster said:

GOD I love twinscroll!

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Yea me to!

Although before all is put together I am gonna have to have jusmx141 rebuild the h1c.

That looks awesome! Love v-band downpipes... In the process of mocking my own up right now.

Twinscroll is exciting Got mine a couple weeks ago, courtesy of Punishment Racing:

Has anyone tried out an auto and stock converter with the stock 12cm^2 twin scroll housing yet?

Just got my Redjack manifold back from Swain Tech

Gstclipse69 said:

Just got my Redjack manifold back from Swain Tech

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Looks great how much did the coating cost???

It ran me 238 with shipping. I had it back in about 2 1/2 weeks. I'm anxious to see how much it controls heat in the engine bay.

Hopefully someone can answer this for me, will a hx52 16cm turbine housing fit on a hx55 without maching?

I've been doing some more reading and I'm having a hard time figuring out how much boost I can run through my hx35 twinscroll setup. What I mean is, how much boost is just pushing the turbo to far and I'm at the point that I need to go bigger? 40, 45psi? I ran this turbo with a bep bolt on housing since I've had it so I haven't really gotten to see the full potential of this turbo. I've been looking for data on results of this thing in twinscroll setups but there aren't many people doing it that have results.

WIDSM said:

I've been doing some more reading and I'm having a hard time figuring out how much boost I can run through my hx35 twinscroll setup. What I mean is, how much boost is just pushing the turbo to far and I'm at the point that I need to go bigger? 40, 45psi? I ran this turbo with a bep bolt on housing since I've had it so I haven't really gotten to see the full potential of this turbo. I've been looking for data on results of this thing in twinscroll setups but there aren't many people doing it that have results.

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Mr. Peepers is running 10's with his setup on only 30 psi. Still has the stock IM and a 3 bolt rearend

turboboy4 said:

Mr. Peepers is running 10's with his setup on only 30 psi. Still has the stock IM and a 3 bolt rearend

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I'll have to look up his posts. I'm curious about a few things on his setup

Does any one how big of a difference is between the BEP T3 .70 a/r housing and stock housing such as the 16 or 18cm?

16cm2 = around 1.10 a/r
18cm2 = around 1.30 a/r

With either of those housings mounted to an open-flanged T3 manifold you'd have all of the lag as if you were running a single-scroll 1.1 a/r or 1.3 a/r housing on your turbo.

The only benefit would be turbine flow, and as Dave has now proven the T3 .70 a/r BEP housing is fully capable of maxing out the HX40 compressor on a 2.0L 9.0:1 engine. The only way you may need more turbine flow / less backpressure is if you had a stroker or very high compression ratio.

Now one of those housings properly set up with a twin-scroll T3 manifold could rightfully outspool AND outflow the .70 BEP housing.

Jus, what is Holset HE341 or 351? I cant find any information on these turbos.

HE341 = nearly the same as a HY35 with a different turbine housing outlet and compressor outlet.

HE351 = same turbo as HE341 with a 7-blade HX40 compressor wheel.

jusmx141 said:

HE341 = nearly the same as a HY35 with a different turbine housing outlet and compressor outlet.

HE351 = same turbo as HE341 with a 7-blade HX40 compressor wheel.

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What size is the compressor wheel on the HE351 do you know jus? The differences between them...

He just said, and you quoted, that the he341 has the 7blade hy35 compressor wheel. And the he351 has the 7blade hx40 compressor wheel . . .

That's why I hadn't replied- he quoted the answer in his post!

Any one have any problems with the compressor cover leaking on the HX40s were the c-clamp go. Mines keeps leaking thru the little cut in's on the cover.