You shouldn't need both I wouldn't think. They each do the same thing, except one flashes the computer's fuel map, the other "tweaks" the fuel map on its way from the computer. At least thats the general gist.
One thing Westcoast is apparently doing is killing the factory adaptives, and I asked Sean the other day whether that was worthwhile with the VEC2, and he said that with the latest software upgrades they have the VEC2 working in concert with the adaptives so that the car will still run well when the temperature/humidity changes. So it sounds like the PCM hack Westcoast is doing would not make sense with a VEC2 to me.
Mojo - What west coast is doing is fine. In fact, I have the upgraded/reprogrammed computer on my car. I should be able to tell you in a few days how much power we added - I can tell you this now, the car is smoother and more powerful with the upgrade.
I would say that AEM has the greatest potential for tuning but its the newest and most expensive. Vec will do a good job for making power and is affordable. Sending your pcm cross country is rolling the dice - you dont know what you get, you have no control and its a 1 shot at a time deal.
I vote for vec 2 and they trade up to aem later on possibly.
Hey MD - I will guess that your application is unique and would benefit from a higher idle rpm along with some fuel trim. PCM reflashing can work and make power, but its almost like throwing darts at the wall blindfolded. For best results you need the car and the tuning resources all together at the dyno at the same time. Let us know what your Venom 700R makes on the dyno after you re-test!
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