Hi!
I have 1.5 dohc 16 valves turbo setup for my ACCENT GT!Now i putt low compression 7.5.1 piston forged rod etc etc!Now i want the best turbo for my setup i will run 15 psi in first and 18-22 psi on track!!!I see GT28T ball bearing turbo
.60 A/R Exhaust
.63 Compressor
Dual Ball Bearings
Ceramic Ball Bearings
.67T Compressor Wheel Capable of .59 Lb/MIN Airflow
Boost at 2700 - 3500
Oil and Water Cooled
Internal Wastegate @ 12 - 16 Psi
HP Rating UP TO 500+

It too big for my setup?well give me your answer sorry i speak french

 

This piston!75.5mm 7.5.1 you know low compression piston for hyundai it not easy to find well life is life

 

Yeah fuuuck

 

I dont ask about PISTON i ask about turbo

 

With that low of compression you will probly spool up later than that. But I'm not sure because a ball bearing turbo will spool up quicker.
It wll be great top end, but REALLY slow when not in boost. GREAT track car, not a very good street car. In my opinoin.

What are you using for fuel management?

 

Compression doesn't have much effect on spool. Displacement, as per usual, is king dick.

 

Haha...king dick...i like that. +1 on displacement. As the old v8 adage goes...there's no replacement for displacement

 

I guess I don't get it then...arn't you moving less air/exhaust when you lower comrpession?
Well, the more I think about it, the more it makes sense. You really aren't moving that much less unless you went from like 12:1 to 7:1.
Not really a whole lot of differece in them piston tops. Never mind me I'm just thinking and typing out loud. I'll go away now.

 

No...I would think how much air you move is based on the cylinder size, the compression level is just how much it's squeezed :P Possibly the velocity will be higher on the more compressed air, but compression wouldn't change how much air can fit into the cyl, but that's just some crap I'm guessing.