turbo auto diesel b2 s475 88mm turbine exducer don't know the a/r it's ground off as per their usual practice. I don't know why they still bother to do that. I think its 1.32 like city diesel. Not a lot of secrets left there i thought. I forgot the blade count. 10 turbine, 7 compressor I think. Now comes the hard part!

 

yep, 7 blade

 

thats a big snail

 

Yes indeed. Mike's been giving me a few tips on mounting it:

"I did one like source but I don't like using the bolts on the engine support, I feel that you dont have the same structural support doing it that way. On my truck there are two holes which you have to drill/tap to build a support. Run a 2in flat bar from the engine motor mount back to the transmission."

But I wonder Mike, are the two holes you drilled and tapped by the transmission?

"Then you can use an 3/4in angle iron off 2in bar. This is just a guess. I'll grab the mount and post a picture for ya. If your using a S475, you have to shave down some of the 3/4 angle so the turbo will sit flush on it."

OK


I was just going to try welding one of these
http://www.sourceautomotive.biz/shop...400-63-48.html
to a 5 to 4 inch reducer then out my existing 4" downpipe.

Do you see any problems doing like that Winkdemon? Mike?


Mike says "Next issue, you have to line up an adapter for the compressor discharger. So far source has the best fitting."

Yeah I saw those too Mike:
http://www.sourceautomotive.biz/shop...ing-67-48.html
but just about gagged at the cost. I was thinking I could just measure up the outlet on the s400 and get the trade school in McMurray to machine one that'll have an o-ring.

Mike says "What you using for cold air inlet for the turbo?"

I am just going to stick a reducer boot on there and try to use my existing Scotty ll.
Will that big unifilter flow enough CFM?

Top turbo is s362/68/14...B-1 from TAD, Phoenix

 

yep 10 blades there!

 

Steve, it looks a lot like a S475 turbo. I would measure the inducer size as there are a few options. 71mm inducer is the PN#171701 and the 75mm inducer is the PN#171702. I don't have my 12v handy today, but on my 24v engine there is on the passager side of the engine the motor mount has two drilled holes. 8-10mm size. I tapped that mount and ran a 2in wide plate steel back to the bell housing. On the 12v you can run an angle onto the adapter plate/bell housing. There are two tapped bolts on the adapter plate. Ask Tate to snap you a pic on his bracket. On the 24v, there a few location on the side of the block where you can run a bolt into, right above the 2nd oil drain. You block doesn't have those tapped holes on the block. Next issue, is you can't run a 3/4in angle iron to support the turbo. That turbo narrows around the turbo oil drain, so you'll have to grind out some metal to get it to fit nice. If you do some trimming on the 3/4in angle to get the turrbo will sit right and the oil should drain properely and not leak. The biggest trick on the S475 is getting the turbo compressor discharge. A truck shop might have that adapter. If you order that flange from source get the clamp as well, as they are pricey pricey stuff here in town. The oil lines use metric threads both on the engine and the turbo. I been using hydraulic lines JIC fittings, but there is nothing wrong with AN fittings.

 

Rob, I think that the BTH-3B is very close to the same size, but seems to hit harder on the top end. The S475 spools slightly better, but when the 3b wakes up, hang on