i have a 99 si. i want to get some cams. which are better itr or ctr. personally this will be my first time doing this on my car. i seen others and help them on theirs but everytime we did it we change everything value,retrainers,ect. so this time im using somewhat stock cams so do i need to change the values and retainer or can i use stock one and slap the cams in?

 

have you looked into getting gsr cams? those would do good on your b16 and they would be alot cheaper. but to answer your q id say itr

 

i dont think the gsr would do as much as the itr or ctr

 

why go oem?

 

Civic Si(1999 Spec)
Int-265 dur. / 10.5mm lift
Exh-267 dur. / 9.6mm lift

Integra GS-R
Int-274 dur. / 10.7mm lift
Exh-276 dur. / 9.6mm lift

Civic Type-R And Integra Type-R(Integra Type R 2000/01 Spec)
Int-278 dur. / 11.5mm lift
Exh-280 dur. / 10.5mm lift


Modified by Frickr at 4:59 PM 11/13/2008

 

i want to go oem because i don't want to open the head from the block. or change anything in the head. just cams

 

so ctr is better but if i get that do i have to change the values and retainers?

 

you can use the stock valves and retainers if you wish to keep the 8200 redline. if yuou wish to go higher say the ctr redline, then you will have to upgrade the valve springs.

 

would going pass 8200 even make more power? i have done 8.5-9 on my stock motor seems like no more power.only done it a couple times.

 

well with a higher duration cam such as the ctr cams, you will be able to get more power up higher. all you rally need is dual exaust valve springs to keep them from floating when you rev higher. to get the most out of a larger cam, you also should upgrade the intake manifold, have a good header (if your not going forced induction) such as a good try Y and higher compression pistions.

im not sure maybe someone else could shine in here, but ive heard about having to upgrade the lost motion assembly. once again dont quote me on that,