Well, looks like the Brian Crower cams are finally available and Automotive Speed is proud to introduce them to s2ki. There are two stages to the cams so I feel I should clarify a few things in this post.

The BC Stage 2 cams offers good duration for forced induction vehicles while providing a good boost in lift which will allow for the increased air to get into the chambers. Offering not only more power but also faster spool up. These cams will also work well for mildly N/A vehicles. The main postive things about the stage 2 is that it maintains a good idle while also giving the boost in HP as well as offering a smoother powerband into VTEC. The cams also offer a special feature that is not available with most cams. You can see it from the specs of the cams:


There are 3 profiles listed. The top one is the VTEC lobe which is why it has the greatest duration and lift out of the others. The 2nd one is the primary lobe and the bottom one is the secondary lobe. This is like the factory S2000 cam design which helps to promote a swirl inside the chamber for better efficiency and more of a complete burn.

The BC Stage 3 Cams are for the more extreme N/A setups. They also require the the BC Dual Spring and Ti. Retainer kit because the lift is too much for the factory springs and will make the springs bottom out. It is recommended to have a 12+:1 compression ratio to really take advantage of these cams. Due to the high duration and lift of these cams, it will affect idle a bit but it is for the serious enthusiasts.

 

If any of you are interested in either of the cams, check out our current group buy:

https://www.s2ki.com/forums/index.ph...T&f=5&t=436483

 

any dyno #'s from an NA car on the stage 2 cams. Would be interesting to see how the powerband changes. Especially how much power these add to an NA vehicle compared to the typical NA bolt ons. Thanks for sharing.

 

good info but this thread is worthless without before and after dyno's

 

No dyno's yet as the product was just recently completed. However if you just compare the specs (which is really what's important), the stage 2 alone would easily out shine even the Toda Spec C's in power and you can run stock valvetrain. My guess is that the stage 2's will also offer a more even powerband in the pre-to-post VTEC x-over.

The stage 3 will provide huge gains in comparison to the Toda Spec C's since the lift and duration is just significantly more.

 

Any information about the 2.47L stroker kit?

 

We have those coming to us as well. If you want one, let me know.

 

Thanks for the info. After searching a little bit I'm seeing that the Toda spec A cams don't add a ton of power. The Spec C cams seem to be more geared towards a built motor while they can be used on a stock motor. From what little I've read, it doesn't look like these are the bang for buck NA mod I was hoping they would be.

Toda Spec A dyno

 

You can't compare them to the Spec A's at all. The Spec A's are almost like stock cams. That's why I was comparing them to the Spec C's. However the Toda Spec C's require their valvetrain as well. However the BC cams can use factory springs and valvetrain. They are also more agressive than the Spec C so they would make more power.

 

Thanks for the PM about the stroker kit. At this point I plan to either go with the InlinePro or BC stroker kit, but I'm kinda leaning towards BC at the moment.

I have a question about the Stage 3 cams/valvetrain setup though. Would it be possible to run this with a stock bottom end/compression ratio, or can I actually lose power with this setup?