atp gt25 turbo

[ben305616]

has anyone got the atp garrett gt25 turbo installed ? i am looking at buying it and woundering if anyone has one installed?

 

[RAAMaudio]

I am not that excited about it, I was at first but looked into it and just not a great match as not much HP gain and loss of bottom end response is to high. I decided to try out a modified stock turbo and ported intake manifold which I am pretty sure will be better in the end and less money.

 

[ben305616]

Doesn't a gt25 spool around 3.5k ? Only tuner in the uk that does hybrid turbos is pumaspeed

 

[RAAMaudio]

The GT25 spools pretty late and not right up so fairly weak bottom end and does not make up top so not a very good match, the bigger ones look only good for a drag race type use. Twin scroll on either would help I am sure but not sure if enough.

I would hold off an bit and see how the stock ones work on a well ported manifold and there are different levels being offered, the one I have has a bigger comp wheel than the PS one, there is one now being done with a bigger turbine clip than mine and there should be some lower cost manifolds coming out.

If you have another car you can drive or find a core turbo you can send yours to the US to get modded, I am sure there is a way to avoid most if not all duties, send it in to be "repaired" or something similar.

Or, piece together an EFR, waiting will pay off as more affordable versions will be available.

I like ATP and I like the GT turbos, just not for this particular car so my comments are purely application driven.

Some may got with one, GTX, not care about late spooling, just want to make the bigger top end power, that is fine with me of course as it is there car.