ok heres the deal. before i installed the turbo kit, i was running n/a. my setup was basically 11/1 cp pistons, steel sleeves, .5 over bore, stock honda head gasket, BC stage 2 n/a cams, BC dual core valve springs, BC titanium retainers and swirl polished valves, thats basically my engine build. now ive head toward forced inductions and im getting the car ready for the dyno. before i go though, i was wondering if anyone has ever tried using BC n/a cams on a turbo setup? i know other cars have done it with good gains. but a few things im worried about is all the negative feedback ive heard about BC now. i know i felt and had more power as n/a so i believe i made more power than normal. but do you guys think i should put my stock cams back in or keep BC cams?

 

It varies from setup to setup. However, it's been known that any cam with lots of overlap will cause results to be sub-par compared to stock or f/i cams.

 

yeah i did some research on the subject with other cars and it seems that n/a cams with turbo cars can possibly cause lag or lack of smooth drivability

 

any more input on the subject?

 

It completely depends on your setup. If you have a log manifold you're going to have problems with overlap, if you have a nice equal length twin scroll manifold and a big turbo/turbine housing you probably couldn't buy an off the shelf cam that was to big.

 

It depends on the setup.

If intake manifold pressure is higher than exhaust manifold (back pressure) then a cam setup with high overlap will net higher gains than one that does not.

If exhaust manifold pressure is higher than intake manifold pressure than you would want a cam setup with low to no overlap.

This is one of the reasons that cam companies have pulled off some of their turbo cams for the B-series motors. They have found that the B-series with N/A cams can gain huge amounts of power with the overlap of the N/A cams rather than the larger duration and higher lift cams setups. The F20/F22C engines are different but in theory if there was a cam company that developed a decent camshaft application at all, I'm sure there would be more people running cams. However, the lack of R&D for a "good" camshaft for the S2000 just isn't there.

 

thanks for the input. im most worried about low spool and power loss. im using a pfab top mount log manifold and a t3t04e turbo. i guess ill be safe and put the oem cams back in bc im pretty sure i cant go wrong with them in and just sell off the BC cams for whatever i can get. i had a good run with them.