- Jul 12, 2001
- Middleboro, MA
- 99' MR Coupe, 04' Silverado 03' ZO6 Sold
I knew the old Predator would be good for something. :L My Z is tuned with EFIlive, let's get that straight, but you can also use a Predator to monitor real time MAP data while driving if you don't have the real tuning software. I have been monitoring my MAP pressure on my bottom feeder Vararam Widemouth. It sits below the nose in front of the spoiler exposed to the incoming air. I'll post some pics. depending on any interest or discussions. If you turn the key on with no start, the Predator will give you an atmospheric reading to the nearest tenth. ex. 14.7psi. Start the car and at idle I have been seeing 8.7 - 8.8psi (+/- 5.9psi. below atmospheric or negative pressure) Take it out on the road and see if you can make the 14.7psi. (1 Atmosphere) back at WOT. Anything above 14.7psi. is positive boost. I've been seeing a consistant 14.8psi., .1psi of boost @ 6800rpm. Given the pressure drop of the filter, this is a good thing for air filter efficiency. If you have an old Predator lying around, check it out to see what kind of MAP numbers you can produce.