Originally Posted by katman from k20a.org

I may be on the late bus with this information (forgive me if i am!) but it seems (to me) that there's some mystery surrounding the '06 TSX camshafts (at least from what I've gathered). We know the exhaust cam is the one to get, but whatabout the intake cam??

Well, I scored a brand new set of '06 TSX cams recently (thanks to d5civic!) and have access to a brand new set of DC5-R cams. So i took it upon myself to shoot comparison pics of both cam sets. I did this same thing for B-series engines a few years ago.

First thing I looked for was any markings, numbers, anything at all, that would make either cam set stand apart from each other. What urks me is that I'm not sure what 02-04 & 05-06 Type-S markings may share or have on their own in contrast to these 2 cam sets. Although I believe the 05-06 Type-S use DC5-R cams now if I'm not mistaken.

So here's what I found.
I'll let the pictures do the talking.









I'm not sure if the "Rx" numbers are a definite way of telling K-series OEM cams apart. I need to get my hands on Type-S cams and 04-05 TSX cams to be reassured.

Now right off the bat, when eye balled the lobes, there was signifigant differences with the primary & secondary lobes on both intake and exhaust bump sticks... (I might have my primaries & secondaries mixed up, but you get the idea).










So that's it for now!
I plan to use both TSX cams in my K20R w/RBC manifold and do a baseline dyno run as well as a tuned run.

Anyone care to let me borrow a set of 02-04 type-S & 04-05 TSX cams for knowledge sakes?


:cool::up:

Originally Posted by gsrvtec2000

I heard that the k24a2 cams are really conservative which

Originally Posted by NA_B_FTW

You should definitely join.. you'll find a lot more actual K series info/tech there.

Taken from K20a.org
http://www.k20a.org/forum/showthread.php?t=43261



As you can see the vtec lobe on both cams are about the same, but the primary lobes are a lot bigger on the k24a2 which should give you a lot more low/midrange power compared to the k20a cams. The top end will be very similar between the two. If you want your car to make more power everywhere you should go with the 06+ k24a2 cams. If you want vtec to "hit" harder then you should go with the k20a cams and set the vtec activation point higher, but you're car will be slower. For a daily driver I believe the k24a2 cams will be better due to their larger primary lobes. I wouldn't upgrade to either set of cams unless you plan on having the car tuned as you won't see much of, if any, gain otherwise with either set.

Hope this helps.