r33 gtst low on power?

[demosr33]

Hey all, new to this forum so apologies for anything I may not say/do correctly. 

I have a 1995 series 1.5 skyline R33 GTST that I have done quite a few mods too.

Mod list:
GCG highflowed stock turbo, 555cc injectors, splitfire coilpacks, NGK sparkplugs gapped at 0.8, walbro 255lph fuel pump, full 3" xforce exhaust to cannon, GFB G-force 2 electronic boost controller, massive intercooler (unsure of what brand), gfb recirc BOV, custom intake box with K&N pod filter and a haltech platinum pro ecu.

Ive just had the car tuned by Uni group engineering, and it only made 230rwkw at 17psi on 98 pump fuel.

I feel like this is a very poor number for the modifications the car has.

Any ideas as to what it could be?

[admS15]

That sounds about right for that turbo. My hyper gear high flow made 248rwkw @18psi initially. I think the hypergear high flows perform a little better than the gcg ones. Yours prob could have done a bit better at say 19psi.

What rpm does it make full boost by?

[demosr33]

not sure unfortunately. the tuning guys still have it as it was having intermittent fuel pressure issues at full throttle. when they give me a call i will ask. 

[KiwiRS4T]

Your problem is the turbo. In 2009 I put a GCG highflow on my RB25DET and it made 225AWKW at 18 psi.  For half the money you could have got a better Hypergear turbo or for the same money a much better Hypergear turbo or maybe even a Precision or other modern turbo. I attach my charts (sorry don't know how to get rid of the redundant charts): 

[Dose Pipe Sutututu]

Mark or Yauvz?