AEM Cam gears

[iLLuCiv99]

Sup people,

[iLLuCiv99]

sup people, (LOL)

I was wondering how do the aem tru time cam gears work? or any cam gears for that matter? how do they give more power? Thanks

Newb LOL

-iLLuCiv

[91zc]

Adjustable cam gears allow to tune the cam timing. By tuning the cams you can decrease overlap for forced induction. You can adjust when the valves open and close. There are a lot of things you can do. Cam gears help dial in the power on the cams. Just slapping in a set of cams or cam will yield power, but tuning the cam(s) will yield maximum power. A dyno is required to properly tune cam gears for maximum power.

[fritz_269]

Generally in a well set up engine, cam gears allow you to adjust the RPM where the peak efficiency point of the engine lies. If you increase overlap and increase total retard, you raise that point in the RPM band, resulting in more peak power but you get a commensurate fall-off in lower RPM torque. You can also do just the opposite, by decreasing overlap and increasing total advance, you can lower the RPM of peak efficiency point, which will raise your lower RPM torque, but drop off your high-RPM peak power. It's pretty much all a compromise.

Of course, it's also easy to adjust the cams poorly and end up with lower power everywhere. This kind of tweaking must be done with a professional, experienced tuner and a quality dynomometer. Trying to adjust cams by the seat of your pants will nearly always result in decreased performance if not engine damage.

If you've done heavy engine modification (new cams, forced induction, higher compression, etc.) then it's pretty much gauranteed that the stock cam settings are not ideal and you should be able to get more power throughout the range by adjusting the cam timing.
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