To4B
 

I got a to4B from a local junkyard. Im planning to do a b20 block b16 head project. Does anyone know where did the turbo come from? It says airesearch TO4b AR .60, plate says TO4b25. The turbo has a twin inlet on the exhaust side. I was wondering what rpm it will spool on a b20?

Re:To4B
 

WOW! that's a T-4 flange, big flange but the trim sounds good to me. You might have a hard time finding a manifold for the block. (unless you make one) Don't quote me 'cuz I'm kinda guessing...

Re:To4B
 

ok! i was wondering if anyone knew what rpm it will spool up!

Re:To4B
 

only one way to tell ;D

Re:To4B
 

Is the .60 marking on the cool or hot side?

Give everyone the complete a/r (both sides).

Re:To4B
 

The twin inlet is a split housing. Sorry to say but that turbo is probably going to be too big for your application. I have 2 TO4B's and they're both split housing with a 60 compressor and 84 turbine. The compressor is what you want but your turbine is probably too big.

Most likely that turbo came off a diesel motor

Re:To4B
 

It says AR .60 cold. I havent check the hot side. You think it would be too big for my application? Coz Im planning to just put it on a built b18c3 or b20 motor. Need help guys. Ill get back on the AR of the hot side.

Re:To4B
 

Does anyone know how to put the downpipe? The exhaust doesnt have any flange or bolts to hook it up with? I cant even use the clamps for it like the TO4b i have seen! ???

Re:To4B
 

I think you'd have to weld on a custom flange onto a turbo manif. made for your engine/ head.

Downpipe: find out what the original looked like.

Can you post a picture?

Edit: Before you worry about how to mount it, find out what size it is and if it's right for your application.

Re:To4B
 

any other inputs!