one for ringarm efi live Q
Discussion
Yes as mentioned SAE.MAP or GM.MAP or similar.
But as also discussed you will need a 2 or 3 bar map sensor. In fact its almost mandatory in an SC setup IMO.
Otherwise anything over 105kpa will cause the sensor to sit on max voltage of 4.5v or whatever.
You need a 2bar or 3bar that only output that voltage at their respective rated pressures and scale the MAP output in the ECU so it gives the right data on the OBDII port.
I think the higher pressure sensors are pretty cheap. I know Mark at Rapid uses them in all his forced induction setups.
But as also discussed you will need a 2 or 3 bar map sensor. In fact its almost mandatory in an SC setup IMO.
Otherwise anything over 105kpa will cause the sensor to sit on max voltage of 4.5v or whatever.
You need a 2bar or 3bar that only output that voltage at their respective rated pressures and scale the MAP output in the ECU so it gives the right data on the OBDII port.
I think the higher pressure sensors are pretty cheap. I know Mark at Rapid uses them in all his forced induction setups.
What he means wallsjay, is that the "SAE.MAP or GM.MAP" are the (Manifold Absolute Pressure) parameters (PID's) you would tell/program the efilive to log, so that you can play them back later on a PC, or indeed watch it on the handset screen.
I would have thought that whoever fitted the SC would also have upgraded the MAP sensor to cope with the boosted pressures in order to upgrade the tune.
I would have thought that whoever fitted the SC would also have upgraded the MAP sensor to cope with the boosted pressures in order to upgrade the tune.
You could put one pre and post cooler. EFILive allows other inputs so you could pump the output into the handset and compare the two showing your losses etc.
I log barrometric pressure and intake manifold pressure, any difference under full throttle shows the restriction of the intake. Which currently with the stock intake is a health 7kpa loss in pressure!
I log barrometric pressure and intake manifold pressure, any difference under full throttle shows the restriction of the intake. Which currently with the stock intake is a health 7kpa loss in pressure!
Yeah its supercharged, so you cant reference to barrometric as your not NA. You will have to measure pre charger at the throttle body to get any useful info and reference that to barrometric. Assuming you are positive displacement with compression post throttle. Centrifugal will be even worse to measure.
MyM8V8 said:
wallsjay said:
Thanks gents i will ask mark tomorrow i only want to know as i am fitting a fmic and want to make sure im not dropping to much over the cooler
If you are talking about pressure, I don't see how you can.
indeed! If its got a 2 bar map sensor (or not) it must surely be in the intake manifold after the throttle body? If you move it somewhere else you going to have trouble. And even if you do i dont see what that tells you?
If you want to know the pressure drop you will need to put a pressure gauge before and after the cooler. I wouldn't involve the map sensor in this excercise, just a pair of pressure gauges, even analogue or electronic if you want to log it for more accuracy. Id be expecting a couple of psi at least.
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