Ok guys, I have a Type R bottom end (stock) in my 00 Si and I dont know the comp ratio---thats the first thing...

second I dont know what cams and the size throttle body to go with it...here is what I have

DTR Header (2.0 ltr way too big)

C5 bottom end

Hondata s200

Ported and polished head (needs a valve job and a port match with the intake)

what cams should I get? im looking at rocket, and also at Buddy club...

What throttle body and what size?

Thanks for the help

Dave

 

if you have a b16 head, get a itr cams, 65 mm tb with itr im.

 

im looking for more HP than CTR's can offer

Dave

 

than get stage 2 cams, skunk2, crower.

 

if u have a c5 bottom end with a b16 head then ur CR would be the same as just the c5 motor cuz the b16 head offers the same CR level as the type r head. unless u've had it milled or something.
so then u'd be at ~10.6:1 if u have a usdm block or ~11:1 if u have a jdm block.

i'd go with an itr tb or some type of overbored (around 64mm) tb.

cams, if u up ur CR a little with maybe flat valves & a thin head gasket then I'd look into m22's. but at ur current CR level I'd consider cams a little smaller then m22's, such as bc3+ or blox a/s2s1 or even s2s2/blox b.