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HX35w Housing Question


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#1 HuD 91gt

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Posted 03 October 2016 - 08:51 PM

I just picked up a nice little (Looks big to me) HX35w with a 18cm housing.   Does anyone have any experience running this larger 18cm housing on a 2.8?

It also came with a 12cm housing, but the 18 has a very nice V band already welded (As well as being mounted to the turbo).

 

Should I even bother with attempting the larger housing or should I swap out to the 12cm right away.

 

This is a street driven,1mm overbore L28. 8.6:1 compression.   Hoping for about 350 rwhp eventually.

 

Picture is for entertainment purposes only.
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Edited by HuD 91gt, 03 October 2016 - 08:52 PM.

1971 240z - Balanced .040 over L28 w/ Ported P90 head - Colt c542.s cam, SU w/SM needles, MSII (ignition)- LS2 Coils Wasted Spark, MSA Premium Exhaust - 6-3-2 Header

 


#2 Greeko

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Posted 04 October 2016 - 01:29 PM

here is some decent reading.

 

http://www.d-series....c-h1e-wh1e.html

 

It seems like the hx35w may be able to just support what you like.

 

Nice to see a fellow vancouver tuner!



#3 lowrider

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Posted 05 October 2016 - 08:20 AM

I ran the 12cm^2 exhaust housing on my 260z for several years before replacing it with a .68ar housing.

The 12cm^2 housing worked but had a little more lag than I liked. I was getting peak manifold pressure of 18 psi by 4300-4500 RPM on an N42 bottom end and a p79 head with a stock C cam. I cant comment on the larger 16cm^2 housing, but I personally wouldn't want anything with a higher boost threshold..

 

Since changing to the .68ar housing, I am reaching 18psi by 3300-3500 now; which I feel is perfect.

 

Just my 2 cents.


sigpic_zps8a510074.jpg
74 260z - n42/p90, TEP cam, holset HX35, ms2 extra, R200, 3" stainless exhaust, and AC.
Check out my build thread HERE


#4 mtnickel

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Posted 05 October 2016 - 07:16 PM

I ran the 12cm^2 exhaust housing on my 260z for several years before replacing it with a .68ar housing.

The 12cm^2 housing worked but had a little more lag than I liked. I was getting peak manifold pressure of 18 psi by 4300-4500 RPM on an N42 bottom end and a p79 head with a stock C cam. I cant comment on the larger 16cm^2 housing, but I personally wouldn't want anything with a higher boost threshold..

 

Since changing to the .68ar housing, I am reaching 18psi by 3300-3500 now; which I feel is perfect.

 

Just my 2 cents.

where'd you get that small of a housing for the holset?



#5 lowrider

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Posted 05 October 2016 - 07:44 PM

where'd you get that small of a housing for the holset?

Place called Tims Turbos on eBay. I looked and it looks like they are no longer on eBay but a Google search turned up their website. If I remember correctly the housing wasn't terribly expensive either. The only caveat is the fact that the housing doesn't have provisions to be internally wastegated. I welded on an external wastegate on the manifold under the turbo flange when I installed it.

sigpic_zps8a510074.jpg
74 260z - n42/p90, TEP cam, holset HX35, ms2 extra, R200, 3" stainless exhaust, and AC.
Check out my build thread HERE


#6 HuD 91gt

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Posted 08 October 2016 - 02:03 PM

Thanks for the inout guys.  lowrider, your the only one who I can reach who has real world experience.  I was doing some searching on the BMW boards, and the 2.8L guys seem to like the 16-18cm housing, the the little 2.5L M20 guys tend go with the smaller housing from Turbo Toms or the like.   I'll shoot him a message and see if they are even still available.


1971 240z - Balanced .040 over L28 w/ Ported P90 head - Colt c542.s cam, SU w/SM needles, MSII (ignition)- LS2 Coils Wasted Spark, MSA Premium Exhaust - 6-3-2 Header

 





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