(11-30-2014, 01:53 PM)Duncansport

(11-17-2014, 01:21 PM)anjay Hi guys!
I am in process of upgrading my 602 with Goran's 7.5 mm pump. Obviously my stock turbo is to small. Locally I have available HE351CW and HY35. Which one of those two would be a better choice. I am looking for dd application so I am not much concerned about top end performance.
Most of my driving is between 2000 to 3000 rpm. Your advice would be much appreciated.

Anjay

Both are very similar, the HE offering a superior turbine design as well as a bigger compressor. I think it tops out at 67LBS. I think if your looking to DD the car and you do not want to modify you OEM manifold i would recommend something like a T25 based GT28. Both the Holset will be a lot more then you need for you 602 if DD the car. If you dont want to spend the money on a GT28 then you could source many different T25 turbos that would be offer more flow then your stock 602 unit and bolt to the OE manifold.

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As my 605 build is progressing i've been back at the search for a good choice of turbo.

I've been messing with the BW MatchBot and finding the results intriguing.

Have a look..

F.R.A.S. i'd love your weigh in on this..


Borg Warner MatchBot

(12-19-2014, 09:40 PM)raysorenson That's cool! I think longer tubes have merit on the 5 cylinder engines since you can't make use of a divided exhaust housing. Where did you get those formed pieces at the port flange?

(12-19-2014, 09:44 PM)baldur A work of art Duncan.

(12-21-2014, 07:30 AM)F.R.A.S Looks good mate. Wrong section though so someone should move your post

Ray you can in fact do a split housing manifold for a 5cyl. Split Nr3 tube and build as normal.

Gonna look awesome when done Duncan and five hours is really fast. You've been busy

(12-21-2014, 02:23 PM)Turbo why do you not like stainless steel as material FRAS?

(12-21-2014, 05:40 PM)F.R.A.S It's way more expensive for NO advantages at all. So why should I like it? Second. It's a bitch welding cause it warps like crazy. Third it has a tendency to crack (ours have never done that but we use really thick tubes).

Mild steel is just cheap, easy to use and stays together for eternity

Simple as that.

(12-21-2014, 02:23 PM)Turbo why do you not like stainless steel as material FRAS?

(12-19-2014, 05:47 PM)Duncansport Got about five hours into this so far

(02-05-2013, 01:21 AM)Captain America

(02-04-2013, 07:43 PM)lpumb3 Capt America , did they replace the waste gate diaphragm when PT rebuilt your turbo?
 does any one know where to source  a diaphragm for the stock t3 turbos waste gate?

I would imagine so but i didn't ask... it was at least disassembled because everything is spotlessly clean and painted. I am sure James can get any parts too

(11-09-2015, 03:32 AM)Tobulus Hi,

I have a question: As I am making future plans on my OM605 with electric pump in w124 build,  I want to have a little more power,  but want to keep the low end torque of the engine.  As it is a daily driver,  I am not looking for too much power.  I want to keep the stock pump,  but remap it.

But I want to start with a better turbo.  I thought I might go with a vacuum actuated VNT from a 270 (GT2259V) or 320cdi (GT2359V).  I know that I will have to build a boost controller.  But which of these two turbos will be better for my needs? I want a turbo that spools like the original one or even earlier,  but I also like to have more top end for more power.  I do not necessary need more boost,  I think the c250s stock torque at 3000rpm is enough for my needs.

Oh, I want to keep the engine smoke-free!

(05-09-2016, 11:22 AM)awsrock BW S200G, fromDeutz / Volvo engines, some 6.06 and some 7.14L

Can't find a map for it anywhere. Can't really find much of anything on it actually. I have seen a few that were not labeled EC-2, one was EC-1 and one had no number.

One user here has it on his 617 with 130-140cc and says spool starts at 1700

It might be overkill for my 603 project, but I'll give it a shot and see what happens. Looks like it is closer to an HY35 but a bit newer design. I have an HX30 now and while it would flow enough air for my needs, the exhaust side is tiny at 6cm and there really aren't many options for me to upgrade. That has a 52/65 turbine so this should still spool better for me than an HX35

(02-26-2018, 07:38 PM)OM616 I am not sure if this is the same as the S200G, but if it is, and I am reading the map correctly, it sure has a wide map and will make a lot of pressure. Being a twin scroll, it can be made to spool sooner. And it is a T3 flange..

http://www.aspecperformance.com/images/BorgWarnerCatalog.pdf         ( go to pg 15 for the S200 map)

Edit:

After doing some math it would appear that it trying to build less than 15 lbs of boost below 2K rpm crosses the surge line.

(02-27-2018, 04:43 PM)awsrock Thanks for posting that pdf! I have had this turbo in for about a year. With a 90cc pump it is a bit on the large side but performs adequately. Unscientifically speaking, it starts to whistle around 1800 but really does not exceed 5-7 psi unitl about 2800 rpm. Full boost is around 3100, maybe a bit lower in top gear. ALDA enrichment does not begin until about 2700-2800 as well. I have an elbe manifold that is pretty long tube so that may cost me a few hundred rpm. Overall it is still decent at the low end except in 3rd at light throttle, where sometimes downshifting is needed if I need to get going. Top end is very good and with lower gears in a 722.6 small which I am planning on swapping it should be a lot peppier off boost.

It does have an internal wastegate unlike the current breed of S200s. The compressor is not extended tip, but I am 80% sure it is billet. The turbine is the same profile as the newer ones but is smaller and has 10 blades instead of 12. The center housing appears to be the same as the new ones, so theoretically you could swap in a new front end or turbine wheel and housing, but at the moment you basically have to buy the turbo whole. 

I got mine for $300 and it said it needed rebuilt. All it did was smoke a decent amount so I put new bearings and seals in and it is better, although with a large feed orifice it still smoked a bit. Rebuilt units on ebay go for like $800 so I don't know if it would be worth it when you could get a new S200sx for $550 or an SXE for $700 all said and done. I am eventually planning on around 300-330 hp with a new pump so this should wake up quite a bit while still being a good size.