pictures?? cpl of the engine???

 

cpl838 - numbers on turbo - Model s2el196- Serial - 171270. All the others have holset on them

 

Anyone clock one of these? Its bolted together..

 

Any photos?

 

I stiil cant get them to load here..

 

Compressor side has a lot of oil film in it. One silicone boot was a bit thin but no actual hole in it. Think oil seal is going bad. Any idea where to get build kit for turbo? I could post pics to another site. How do you load them from my pictures on my pc in pic file??

 

What was the condition of the engine it came off? Almost always turbo oil leaks are due to excessive crankcase pressure on the engine it was installed on. Turbos get blamed and rebuilt a lot when they are the victims, not the criminals.
I'd just run it and see how it goes.

 

Finally got specs from borg warner

Called emailed but got info

***** The turbine housing has a .7 A/R on the 171270. The compressor wheel has an OD of 68.6mm and an inducer of

40.6mm. The turbine wheel has an OD of 69.6mm and a 60.7mm exducer. *

Its a bit smaller than h1c

Looks a bit smaller than hx30 on the compressor too

This thing works good spools instant pegs 29 lbs with the fuel turned up

Only complaint is temps are hi

Got it dialed now hits 24 lbs full load and just hits 1200 pegged

Dont like it that hi but thats pegged normal is about 6-800 at 75 mph

Never seen another one out there

It will do about 9 lbs in first 20 in second 3-4-5th 24

Needle moves very quickly instant boost

Is it the miracle turbo

It sure is flat torque I can say..

 

You've gotta post some pictures and / or a video.

 

I'm noticing a trend in the compressor/turbine sizes of the best working turbos on these engines.

Price is pretty good too: http://turbochargersbyborgwarner.com/?p=350

Is this one split scroll and no wastegate?

 

No gate it is split scroll found picture

Is the .7 a/r bit larger than 9cm2 Dougal?

What is the trend?

It was a slug till fuel was put to it

Our truck beat a stock p pumped 12 valve friend has by a bunch..

 

The trend I am seeing is compressor intakes around 40mm and compressor OD's around 60-70mm. Mine is on the small side at 60mm, but the intake is comparable. With a slightly larger OD compressor wheel (68-70mm, I do have an option based on the new BW wheels) I could get the same spoolup, but with a larger A/R turbine housing which would give me better top end than I'm getting now.

It's not possible to convert cm^2 to A/R without knowing the radius. But it's not a huge deal anyway as the A/R needs to be considered against the turbine wheel inside too. The best way is to just look at the options the manufacturer gives us for that turbo and see where you are in the range. If it's an aftermarket turbo and they give a high and low A/R option, then the low one is always the diesel pick, the high is always the petrol engine pick.

 

Compared to the hx30 on our other truck it pulls to limit

The hx hits a wall b4 it winds out its close but notice it..

 

Kid is trying to educate me on vids

Dumb and dumber here

Not him me and the voices

How can I post vid took me long time to figure pics now I am really lost

Have the vid on the pc but what is url when hit insert vid??

 

I usually upload my videos to youtube, then embed them in a post. I recommend that route.

 

Older thread, but I just think it is interesting that we have a 460cu in. Valmet in one of our tractors that also runs a varient of the s2 Borg Warner series. But it is a s2b, Compressor inducer of 52mm if i remember correctly. Although it has a MUCH bigger exhaust housing than your little s2e

 

Just found out that this was a joint venture between bw and holset

They where trying to find happy place that the 4bt would like

Took 2 rebuild kits countless hours on phone and hair loss to finally get info

Everyone thought they knew part numbers for kits WRONG AGAIN

So waiting on another kit update soon..

 

Make sure to keep us updated with whatever info you find out about this turbo.

 

I bet if u installed an external wastegate u could control the egts better so u could add a bit more fuel.

 

We've been through this. Go back and read that old thread instead of ruining this one.
This turbo is designed to run with no wastegate. The turbine is matched to the max expected flow of the compressor on these engines.

 

Whatever. I'm going to give the good advise whether not it is used or not. Deal with it!

 

when you say "I bet if you put a wastegate on", you`re GUESSING that something will work. that is NOT good advice !! if you have put a wastegate on a non waste gated turbo and then recorded the difference before and after the wastegate,then you have good advice. I don`t understand all I know about turbo maps, but Dougal does and when he comes up with examples and makes suggestions about what will work or not, THAT is GOOD ADVICE, that you can take to the bank.

 

I would not say something if I haven't had success with it before. Sorry threetoecrow.

 

Im very happy with the turbo the way it is

I dont think you could improve it its that good

Ive got elephant hide no worries d..

 

Well a lot of people including myself has said it, the 4bt needs a twin scroll 9cm turbine housing. I guess this turbo proves it. I wish they were readily available.

 

I picked up an S2A off a John Deere Genset. It had a larger pattern than T3 on the exhaust. I don't think it was T4, but I didn't measure it. I was able to re-drill the pattern to T3 and bolted it up. Its a twin scroll and the ports were T3 size, matched the gasket perfectly. Now I just need to finish the rest of the project so I can try it out!!

 

Same rebuild kit as s2e

Hot and cold sides may differ though

Whats housing sizes??

 

http://www.flickr.com/photos/threetoecrow/9137808486/

 

Few pics of turbo apart usual white crud in comp housing wiped it b4 pic

Cut 2nd gen intake spacer for height issue still may not clear hood

Drain tube is 1/2 pipe welded to stock drain had to make 2 pieces and weld

Waiting on rebuild kit from bw real pain arse finding it..