the max id go is 10:1
u still get good driveability and forged internals will allow u to run a descent amount of boost but yeah, ur gonna need a good tune and descent size turbo so u dnt max out its efficency and start blowing hot air which will increase ur chance of detonating. lol!!!

i just felt like talking. shitll buff out but if u sked so mutha-dammit!!

i tried to get 10:1 je's back when i built my first engine and race engineering refused to sell them to me bc i tol dhim i was gonna boost the engine.

cp's suck!! id get JE's. Not SRP, but JE. Theres a difference in the metals. R&D is what i love. Good luck