Z31 turbo hybridization and a surprise

[toki]

RX-7 series 4 compressor and housing onto the exhaust side of a Z31 t3

[toki]

another

[toki]

and finally, a possible setup i've never seen before (flange is for a 38mm tial) so THIS is why nissan put those 2 cool studs in the turbine housing!

[andrave]

links all don't work.

[toki]

links? gwah. -nevermind-
Modified by toki at 1:35 PM 9/20/2004

[SeVa-S13]

They work fine for me.

[egan]

ok, so what is the advantage of this? why not just z31 or s4 turbo? both match the ka pretty well, and wouldnt you want the s4 turbine side? id assume it would have better spool since its matched for 2.6 liters compared to the z31 3.0.

that tial placement is crazy. but how on earth are you going to make a downpipe? unless you had the downpipe go flush with the turbo and had the tial flange in it? excellent post though.

[SloS13]

it might just be crazy enough to work. Love the WG placement idea!!!!!!!!

[toki]

To get any downpipe to fit you would have to make it come out at an angle, and probably trim a little off the tial flange. I personally won't be doing that.

As far as the turbos, the compressor on the S4 turbo was a little bigger than the super 60 that was on the Z31, and it had been rebuilt, and it was given to me, so why not? And as far as just using the stock s4 turbo, the flange is rotary specific, as well as being a .8x a/r turbine housing, adding some undue lag.

[egan]

ah crap! for some reason i always thought that the flange was a t3. oh well. :/

thanks though. great info.

[TrunkMonkey]

i used to have better pics. the setup works very well.

-demetrius

[toki]

awsome...I figured it pretty possible others had seen that that lines up before, just didn't know if anyone had actually done it.

[veilside180sx]

demetrius,you just made a flange and welding on the tubing for both sections, correct? as i sat there looking at mine i figured that is what i would do, and then i find this...nice.

[TrunkMonkey]

demetrius,you just made a flange and welding on the tubing for both sections, correct? as i sat there looking at mine i figured that is what i would do, and then i find this...nice.

i can't take credit for this. that's not my work, nor have i ever run that setup on any of my cars. this is a pic of a boosted saturn engine. the way the engine bay is set up, there's not much room for a turbo system. most people would restrict themselves to a log manifold and internal wastegate to make things fit, but the die hard peeps would get more creative.

and yes, it's just one flange with both the downpipe and the dump to the wastegate welded to it.

-demetrius