Just wanted to get some insight regards to the main noticeable differences in performance if I went from my vitara pistons to a set of SRP 10:1 compression pistons. My current comp ratio is in the neighborhood of about 7:1 to 7.5:1, I believe.

Here is my current dyno graph with the low comp set up..

I currently get full boost by about 3800 - 4200 rpms (13.5psi)

http://img51.imageshack.us/f/dynochart.png/

Car set up
go autoworks street kit
T3 50 trim turbo NOT a t3/t4
3" exhaust
2.5" dp (should have gone 3", but worried that it would be to loud)
3 layer metal head gasket

 

Lol serious? It's night and day! Why on earth do you only have 7.5:1

 

vitara pistons.. there cheap

 

huge difference..if you want to run high boost lower compression is best. all motor higher compression.

 

Vaguely correct. But with the technology and skilled tuners today you can run 11:1 and get 450 whp with no problems

 

Read Tony the Tiger's comments in the middle of page 3 regarding compression

https://honda-tech.com/forums/showth...2898882&page=3