Safe compression?

[BTEC]

i would say 9 and under


my motor is over 10 and its a time bomb if i boost it

(KA24DE)

i like 9.5:1 but 10.5:1 has been doen but with forged internals. prolly higher than that but i dnt reccomend it. JRC are ok if u want a lil extra power and dnt want to worry bout blowing ne hing up o having to refill a bottle. if u want to run low 13's or lower i dnt think thats gonna do it. it is very reliable though.

[patrick4588]

i like 9.5:1 but 10.5:1 has been doen but with forged internals. prolly higher than that but i dnt reccomend it. JRC are ok if u want a lil extra power and dnt want to worry bout blowing ne hing up o having to refill a bottle. if u want to run low 13's or lower i dnt think thats gonna do it. it is very reliable though.

he is going with the vortech no the JRC. but still you wont hit anything better than mid 13's