Unless there is some sort of "Downstairs mix-up"

http://www.metacafe.com/watch/530183/old_greg/

It really never gets old, that one

 

Thanks. I checked before I posted... I'm good.

 

I'll see what I can dig up for you, there will be a thread coming soon...

Very true, ours for sure.. I refer to them as our "Stig" turbos - people suggest what they think, all we know is how they perform...

 

My compressor side has TIAL on it and the billet wastegates as well.

 

Where did you get your turbos and what were they classified and or called by the vendor. GT28's, A28's or a custom variation.
What boost ,fuel and tune have you ran with success.

 

The turbos I got are from the EVOMS GT700 kit and I've got it flashed from EPL as of just last week. I'm waiting to get the new flash from EPL to bring it up to 1.2 bar I think.

 

Sounds good. Been running 1.2 bar now and experimenting with the Greddy boost controller settings on gain. Easy to adjust boost up or down, just learning what the other seetings are for. So far as the instructions tell, Increasing the gain will bring the boost in sooner. It works as described but I only have bumped it up another 10%. Want to run race gas and turn up higher, just reading and hearing what others are doing first. My recent tune loaded in last week definetly richened it up across the board, still perfectly smooth across the power band. (protomotive tune).
Let me know how you like the EPL tune once installed.

Ron

 

One of my colleagues has twin GT28's on a R33 GTR (apples to oranges here but...). He made close to 700whp and spool-up was fairly quick. That was on a 2.6ltr motor. I think GT28's on a 3.6ltr motor would spool very fast and make great power. I am not up to speed at all on the K16/GT28 hybrid so I'm no help there.

 

I have a very similar setup as you and am local.

I know for sure they are 2860RS and are watercooled, ball bearing... they are not alpha turbos but were purchased new directly from TIAL by my shop (speed gallery) around June 09.

I agree that there is LOTS of confusion as there have been many variations as well as sizes for those variations. One thing is for sure, most tuners seem to set these up at 1.2 bar for cali 91.

Here is the writeup I did when I modded my car https://www.6speedonline.com/forums/...no-inside.html

 

What do these run at the track on 1.2 bar?

 

If you bought in Sep 09', shouldn't it be Alpha28? At that time Alpha28 was already available? Flash68 & I got A28s around that time Aug-Oct 09'.

 

Sorry it was more like June (corrected above). I think you can still buy multiple versions to this day. Alpha was available but there was no info about it. Just rumors of a stainless housing turbos.

 

Lets clear up something,
a GT28 is a GT28 regardless of what housing it's in, the CHRA dictates whether it's real or not. with that said, our SS housing we put them in flow better than the standard cast T25 housings the 'real' GT28's come with

 

Alright, who neg repped me on this thread? I tried to give the OP some help, having had the original GT28/K 16 turbos myself. Obviously someone who isn't in on our long running "Old Gregg" joke.

 

That was pretty funny. I always hear you guys talking about Ol Gregg, but never knew what the hell you were talking about.