thorzwar

Picked up a used turbo miata and the previous owner didn't really know much about the current setup. I know its a t28 with some ebay parts but I have been have also been told this could be an old school Begi setup. Any input/feedback from the pros here would be much appreciated. please see the attach pics.

What I know:

• t28 - not sure which type, Garrett 2560 maybe?
• RC 750cc injectors
• Megasquirt Pro
• Log style manifold - unidentified
• Down pipe (complete with leaking v-band) - unidentified
• Blitz blow off valve - ugh (obnoxiously loud)
• Front Mount Intercooler - RDT motoring couplers (not sure what that means) intercooler appears to be painted black, or maybe it came that way, not sure.

brainzata

iTrader: (4)

Ebay All of It crap - sorry
Turbo is chineese, water inlet and outlet are directly across from each other which screams not quality like oem brands. Which usually have it set up properly with the outlet higher the the inlet. There would be a garrett stamp or tag anyways.

The DP does look fair under the car, but the adapter, abundance of 02 bungs make it seem no begi or other.

​​​​​​​Your hardware is loose btw.

curly

iTrader: (25)

I think it's just giant washers clamped down at an angle.

Way back when FM and Bell were the same company, this was the manifold design. The design has since made it's way to Ebay. Very easily identified by the thicker outer edges requiring longer bolts rather than the factory exhaust studs/nuts. Although covered in surface rust, it still doesn't look old enough to be an original, and quite frankly at this point the new ebay one is much better than any ancient used Bell/FM piece.

So ebay manifold, probably an ebay turbo as well. It needed the internal wastegate adapter (again probably ebay) to avoid an external wastegate, which I think makes it a T3 turbo. If the upper two bolts are ~3" apart, it's a t25, if they're ~3.4", it's a t3. DP doesn't look terrible, looks like a cut shelf so all custom.