Quote:
Originally Posted by sw20kosh
The vol. efficiency is increasing in the 5000-6400 zone which causes more torque there but the vol. efficiency drops off sooner than stock. Luckily the boost in vol. efficiency is so good that it prevents the torque from ever going below the stock curve.
Look at where the torque starts dropping off for both runner lengths. Crawford's may make more peak torque but it starts to drop off sooner than a stock torque curve.
As for low end power, it is indeed a little odd that there is no change there.
Can't wait to see nelsmar's tests!
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Also note that the OEM rom shifts intake cam angle at that RPM too. So the real question is what happens after I tune the car? :P
Here is my cam profile for my NA car (stock header) basemap vs the OEM rom:
