Dyno Results

[jmac636]

Base timing should be 20 degrees but not at full boost. I have had two Efi specialist 550c and 740cc tunes for t3 and they pull 14 degrees of timing. Using nistune I can see the maps and in the last load column above 2800 rpms at full load the timing is 14 degrees. Great numbers BTW! For a T28 I could see pulling at the most 16 or 17 degrees of timing depending on fuel, climate and altitude at 15psi of boost.
Modified by jmac636 at 7:33 PM 1/29/2010

[Chris28]

Alright, I'll try and pull the bin from the ECU later and open it up with ROM editor and see what the timing does after a certain rpm.

[neverlift]

man you must be running the 25+%ethanol pump gas we get here(rated at 10 tested to be 24.8%) anywho 20* under boost normally equals failed ringlands, pull at least 4degrees for safety.

[sunnys14]

Gotta love the GTiR turbo.

I miss mine.

[visser003]

I just bought a GTiR T28 w/T04B Compressor housing. I can't wait to finish buying the supporting mods for it so I can slap that b**** on!

I might be messaging you for some advice when I get closer to completion.Any tips for me during install? The turbo is already clocked/internal wastegate actuator fixed for install.

Here is a quick pic of it.

[Chris28]

The only thing I really had trouble with was the wastegate actuator, but it seems like yours is already good to go. When I clocked the turbo i couldn't bolt up the wastegate actuator so I had to modify the t25's one.

Other than that make sure you get the clocking plates for the compressor inlet and outlet. I had mine cut and welded and ended up only costing $50, but I'm sure you can find some used ones for around that price. Good luck!

[hannibal]

Impressive numbers!

What manifold are you using? Where'd ya find the GTiR turbo? Ebay? And I thought the stock MAF ran out well before 300whp...

[Chris28]

Ebay manifold (XS Power to be exact). Yes I found the turbo on eBay, and yes I thought the stock maf maxed out well before 300hp as well haha.