Just to pull this out into a separate thread that others may be able to search on...

I put an Andrews 57h into my 2014 103 and tried tuning with an FP3 and a Power Vision but wasn't getting on particularly well. I noticed that the MAP at idle was up at 42 instead of stock which is around 35 or so.

Well I'd read that changing cams, with different timing and overlap could change this and that this appeared to be normal. Ed Ramberger pointed out in another thread that MAP needs to be read at the right moment ...which was what I always assumed changing cam settings in the tuners did.

Well as we know there is no cam setting in the Power Vision ...but I asked Power Vision tech support nicely about this and they sent me a map with the appropriate setting for the 57h...

...BINGO!! idle MAP is back down to 35, tuning was smooth and dialled in really easy ...and this beast flies! [so much so that although I have never wound it past 4500 before, I accidentally hit the rev limiter before I realised what was happening ...my excuse was that I was trying to hang on at the time ]

So thanks to Scott for your help mate

 

Glad to hear you are on track.

So how did the new map differ?

 

I can't see anything that is revealed by WinPV so I have no idea?

 

There is a code that you can use that will expose something like a IVO setting in vision. You just change it a number at a time until you get the results you are looking for. I figured they would have this expose in all their calibrations by now.


Glad they got it figured out for you.

 

You mentioned that in another thread was why I thought to ask them, cheers mate, good info

VE tables were way too rich mind you but it was a good starter for 10. Just need to get back to the CDE tuning for the icing on the cake

 

I don't see a IVO setting in my PV tables. What is it? Also, what result should should I be looking for if I am able to change it a number at a time?

Thanks

 

Intake Valve Opening
there are lots of threads on cams and timing and the ins and outs of tuners and cam settings, have a read

 

Do you happen to have that code? I just installed 57h cams and my idle kpa is 40-43, this is with using two different starting base maps, one from FM and one from DJ. i realize there will be some vacuum loss with a larger cam but this is a somewhat mild cam.

 

can you post your pvt file here please- zip it first (right click in windows > send to > compressed file), then attach. I'd like to use it as a comparison file.

 

Awesome. Basically the MAP sensor is always getting a read as are things like the O2 sensors. The software needs to know things like physical events such as valve timing to know when to pay attention to the data and when to ignore it.