here is a good comparison photo of 35R compressor vs BW 83-75 compressor:


^^^ 3582R "flat tip"


^^^83-75 S300SX "extended tip"

my terrible MS Paint image showing what the "extended tip" of the compressor looks like:


<please disregard my mspaint skills>

and another pic i found somwehere online

 

very interesting information....!

 

Geoff,
Can you show me a picture of how you put a S3xx series turbo on an Evo and kept the A/C? I have a S366 in my garage that I'm using to make a Neon Turbo manifold and I've been measuring it and thinking about how it would fit on my Evo... I'm not seeing it. I've got 8" from the compressor discharge to the turbine discharge... leaving me about 3" until the A/C compressor. If you're fitting this turbo in the engine bay with the A/C... I'd like to see how!

 

What exhaust side do you have on the turbo? I know Full Race machines them for a 3" vband so they will interchange with a 40r.

I hope I can make it fit and keep a/c

Fathouse

 

I have a S366... and it has a 3.5" or 4" v-band discharge IIRC. I'll have to measure tomorrow since I forgot to order it...and now I'll have to lathe one up.

The turbine discharge is offset from the turbine inlet flange by approx .5" to .75" (The turbine discharge protrudes that amount past the turbine inlet flange) I hope that makes sense.

I saw some pics that Geoff had of the 3xx series turbo's and it looked like they had a different compressor cover and turbine housing...

 

Send me some pics.

 

hey guys, I just got back from PRI - it was unreal the new BW stuff was on display and the new Tial wastegates are off the hook.

Yes, we do fit the S300SX turbos in evos with A/C, in fact we have many evo customers that have purchased our twinscroll kit and swapped out to a BW twinscroll turbo - it fits in there identically to the garretts. What we do is machine the turbine housing to be a 3" vband outlet. We remove the 3.5" marmon flange that comes with the turbos, and weld a 3" vband in the identical location as the Garretts.

This way you can use the same manifold, same downpipe, same wastegates, same dumptubes, same everything, just swap the turbos from garrett to borgwarner

im beat and going to sleep but tomorrow ill post up some pics of it installed in an evo

RT ernie, it sounds like you might not have the genuine Borg Warner Airwerks turbo with the 79mm turbine wheel, and possibly have the bullseye with the 76.1mm wheel?

 

Looking forward to it Geoff

 

My camera is in the trunk of my Evo... which doesn't seem impossible to get to for most people. Unless you have a carbon trunk with the OEM springs still attached..it's a two man job and my girlfriend is at her parent's house. So I can't get in my trunk for a few days! doh.

Lucky me... I found google. It looks just like this one... and has the "marmon" flange that you speak of.
http://www.zerotohundred.com/newforu...ver-s366_2.jpg

Totally makes sense that you're welding on a vband flange. What rod do you use for that? Nickle? I might hack up this one to make it low profile and 4" FTW

I didn't realize there was a separation between Bullseye and BW Airworks... care to give more detail Geoff? I assume you're working with Airworks.

 

Is that a t3 housing. or a open t4?

 

Open T4

 

Let me engineer a solution for you.

- Place a towel on your trunk lid so you don't scratch it.
- Place something that weights roughly 10 lbs-ish on the towel/trunk lid
- Go "pop" your trunk release in the cab
- Enjoy low/no speed trunk opening.

I used to launch tiny animals from my trunk lid when I was wingless back in the old days. Good times.

BW turbo's look nice....

 

Thats a similar solution to what i was gonna post.

 

I tried that... it shot 4 quarts of oil, two towels, a pair of jeans, and a gallon of coolant on my rear window. I'm considering putting a steel plate on it... but I'm afraid of it smashing my rear glass... Imagine trying to explain that to my insurance agent.

 

A hole saw would work.