Fingers said:The comp cam is much more agressive. Look how quickly it is opening/closing the valves compared to OEM. The area under the curves is roughly proportional to the window where gases can cross over. This graph is of the Exhaust-Intake transition near TDC, so the relative pressures are almost exactly backpressure Vs Boost.
Do you suppose the typical dealer shop would recognize the differance of this "replacement" cam? If it isnt available in your catalog how would someone get this cam? The exhaust lift appears to be a little different from stock.Diesel Tech said:Now Jon don't be giving away all the trade secrets. This camshaft design has close to the same total lift as a stock camshaft and it is the smallest of the cams we designed with Comp Cams for the Duramax. We do not offer this cam in our camshaft line as it's basically a stock replacement part with just a little more punch. The camshafts we do offer are more for the guy who want's to hotrod and they are exclusive to TTS and come with our EDM Keyway drive which is another feature not offered by Comp Cams. How the air starts to move once the valve opens and what it does during crossover play a big roll into emissions tuning.
