Notices
944 Turbo and Turbo-S Forum 1982-1991
Sponsored by:
Sponsored by: Clore Automotive

Holset HX35 944 turbine

Thread Tools
 
Search this Thread
 
Old 12-20-2016, 04:03 PM
  #16  
nick_968
Burning Brakes
 
nick_968's Avatar
 
Join Date: Apr 2002
Location: London, UK
Posts: 782
Likes: 0
Received 10 Likes on 7 Posts
Default

Originally Posted by Dougs951S
much more to it than that. these are custom T3 hotsides specifically machined to fit the holset turbine. you could make the replica hotside bolt on if you machined it to fit the hx3t turbine and chra. Then you need to fab a custom oil feed line and grind the throttle body, the intake manifold, and the turbo mount for clearance.
Already have done most of that work to fit my current Garrett hybrid. Its just the turbine housing that presents a problem for me. Happy to wait for the custom ones to be made to try one of these out. Just looking for a little more flow on the turbine side.

Last edited by nick_968; 12-20-2016 at 04:28 PM.
Old 01-01-2017, 11:13 PM
  #17  
Dougs951S
Race Car
 
Dougs951S's Avatar
 
Join Date: Mar 2012
Location: Austin TX, drinking beer in the garage
Posts: 3,602
Likes: 0
Received 7 Likes on 7 Posts
Default

Originally Posted by Dougs951S
Tim, also extremely interested in sending you back my hotside and having you weld on the 3" Vband if It's known to clear the balance shafts, ect. Do you open up the outlet of the turbine so that it's actually a 3" outlet and not 2.5"?
Any idea on this Tim?


Would love a picture of the right hand two hotsides; the standard 4 bolt unit and the 3" Vband unit, but looking straight into the hotside from the Downpipe side looking in. I'm curious to see how the outlets compare.



Old 01-02-2017, 12:24 PM
  #18  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

I know one of my customers was welding on the V bands for the 944. But, I never mounted one. He ran his own up pipe. But, I'm pretty sure he still ran the oil return flange mount. So,,, I'm not 100%. I may have a hsg here you can check clearance with.
The 2 951's i have here have been modified. So no point on fitting it.
__________________
http://www.timsturbos.com
Old 02-06-2017, 05:08 PM
  #19  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default







Old 02-06-2017, 05:21 PM
  #20  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

This is an HX40 Billet watercooled holset. We have the K26 stile turbine housing on it. It has been test fitted to our jig. But, not a car yet. I need a guinea pig. both of my 951's have been modified. So no point to see it if fits any of my set-ups. These units will sell for $1300 new. The tester gets it for $850. As long as it fits of course. All flanges should be correct. Also this compact compressor cover " should fit under the throttle body. Again this has no been tested.
Old 02-07-2017, 09:32 AM
  #21  
Portly
Instructor
 
Portly's Avatar
 
Join Date: Feb 2006
Location: Cedar Rapids, IA
Posts: 118
Likes: 0
Received 0 Likes on 0 Posts
Default

Tim - sent you a PM. Not sure if you have a candidate yet. I _might_ be a viable option for you.

_Jeff

Originally Posted by TimsTurbos
This is an HX40 Billet watercooled holset. We have the K26 stile turbine housing on it. It has been test fitted to our jig. But, not a car yet. I need a guinea pig. both of my 951's have been modified. So no point to see it if fits any of my set-ups. These units will sell for $1300 new. The tester gets it for $850. As long as it fits of course. All flanges should be correct. Also this compact compressor cover " should fit under the throttle body. Again this has no been tested.
Old 02-07-2017, 10:12 AM
  #22  
odonnell
Rennlist Member
 
odonnell's Avatar
 
Join Date: Nov 2012
Location: Houston TX
Posts: 4,772
Received 67 Likes on 49 Posts
Default

I'd have volunteered, but my engine is still on a stand. I can fit it to that setup if you'd like - stock mount, headers, crossover, downpipe, etc. The only piece of information missing would be the downpipe's alignment with the rest of the exhaust system. I could measure for clearance to the intake and alternator bracket, etc.
Old 02-07-2017, 01:20 PM
  #23  
Perry 951
Addict
Rennlist Member

 
Perry 951's Avatar
 
Join Date: May 2001
Location: Kansas City
Posts: 6,915
Likes: 0
Received 70 Likes on 53 Posts
Default

I'm interested. I don't know a lot about the Holset center sections. How well is this matched to a 2.5? I'm not really going for all out power; good street manners is preferred.

I have one of David Raines (Powerhaus) milled 26/8 with a 27 compressor wheel from way back in the day. It's been a good turbo (330/310 @20PSI on a relatively stock 2.5). I was planning on sending it out for a rebuild this spring, but this sounds like it may be a better option.

I haven't pulled my engine to reseal the balance shafts yet so I'd be willing to try it out.
Old 02-07-2017, 01:25 PM
  #24  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

This would be more of a 450hp target and up. It has a 60mm compressor wheel that flow 65lbs/min. and the turbine wheel is a 64mm. So on a 2.5 with little mods it will be laggy. But, I can do the same turbo in an HX35 or 35 40 hybrid. that will give much better spool on a 2.5L.
Old 02-07-2017, 02:53 PM
  #25  
gruhsy
Drifting
 
gruhsy's Avatar
 
Join Date: Dec 2009
Location: Calgary
Posts: 2,559
Received 51 Likes on 38 Posts
Default

Does it just need to be mounted on an engine with the intake installed? I have my complete engine sitting on a bench right now.
Old 02-07-2017, 03:29 PM
  #26  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

I would like it on a car. So the up pipe and down pipe are in the correct position.
Old 02-08-2017, 02:38 PM
  #27  
Perry 951
Addict
Rennlist Member

 
Perry 951's Avatar
 
Join Date: May 2001
Location: Kansas City
Posts: 6,915
Likes: 0
Received 70 Likes on 53 Posts
Default

I'd be willing to do some fitment tests for you if you want to make a deal on the HX35 or whatever you think will be the best power to street manners compromise. My current turbo is certainly laggy.
Old 02-08-2017, 08:34 PM
  #28  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

We my only have the HX40 left instock. I can do the HX35 with the T3 flange though.
Old 02-12-2017, 12:35 AM
  #29  
TheAllusionist
Racer
 
TheAllusionist's Avatar
 
Join Date: Jun 2013
Location: Yakima, Washington
Posts: 307
Received 4 Likes on 3 Posts
Default

If there is a significant difference on power or boost speed I would think there would be a good niche market for the matchups.

For me I would be interested in knowing what benefit there​ is over common options for the average 951 owners such as a K27-8? I have a blown head gasket to deal with in the spring and was planning on getting one and sending of to Charlie at Evergreen. It sounds like the 35 is more appropriate for a pretty stock 2.5, what kind of power/torque/full boost RPM are we looking at for a bolt on application? This would be at reasonable boost as I don't want to always be repairing the car.

I have a stage 1 intercooler, over sized throttle body with matching intake ported and matched up to larger throttle body, Vittese Racing MAF, 55# fuel injectors and 4" exhaust to install as well, which might affect what size I would choose, but I was just anticipating faster spool and throttle response out of those items to help out with a bigger turbo.

With all that said, my question really is what improvements would there be over a K27-8 or similar while bolting up and not causing undue stress on a stock engine? Feel free to PM me with price etc. but I don't plan on buying anything for a few months, but if I go to all the effort and cost, I would like to pursue the best option and not have regrets.
Old 02-15-2017, 04:59 PM
  #30  
TimsTurbos
Basic Sponsor
Rennlist
Site Sponsor

Thread Starter
 
TimsTurbos's Avatar
 
Join Date: Apr 2015
Location: VA
Posts: 139
Likes: 0
Received 2 Likes on 1 Post
Default

Hey Everyone, Just an update. I do have one hx35 in the field for test fitment. So i will let you know if it's a green light or back to the drawing board.


Quick Reply: Holset HX35 944 turbine



All times are GMT -3. The time now is 12:14 PM.