i was wondering could i install any camshafts i want with my gsr motor with stock pistons and stock bottom b18c1 or could they not be so aggressive so that i have some valve clearness... well my plan was to install some zex 57200 camshafts in my gsr head but i wanted to know if that would be ok to install on a gsr stock bottom end? or could it be possible that my piston could hit the valve because of he piston clearess... let me know any info would be help full... im also going to install valve train....

 

Your piston shouldnt come up when your valve is open and you also will need to upgrade the size of your air intake to let more air in

 

DO NOT put in a cam that is bigger than type r and keep stock valvetrain.

upgrade the valvetrain or you will be asking later where you can find another motor.

even if you decide to put in bigger cams and not upgrade the springs, dont rev it past the stock redline

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 90_EF_Si &raquo;</TD></TR><TR><TD CLASS="quote">DO NOT put in a cam that is bigger than type r and keep stock valvetrain.

upgrade the valvetrain or you will be asking later where you can find another motor.

even if you decide to put in bigger cams and not upgrade the springs, dont rev it past the stock redline </TD></TR></TABLE>

listen to the man, he'll save you alotta money

 

no no no.. i know not to put bigger cams than type r with stock valvetrain i mean thats insane... thats like saying good bye to your motor... anyway i am going to upgrade valvetrain dual springs and titanium retainers from zex as well. but question is can i run bigger cams with stock bottom end? thats my real question you guys... let me know thanks...

 

you can but anything over a type r cam will need more compression to make power, so your choices if you want to keep the motor stock would be to replace the headgasket with a 1 layer one or mill the head, anything more than a stage 2 will require new pistons for more compression

 

yeah mine are stage 2's so im fine they are the zex 57200 for street race/ or competition race. the lift is 12.5 on intake and 11.5 on exhaust im i good.. could i keep my stock pistons and stock head gasket...