theory on how to map a drive with modified cam

[rego88]

hello guys.... my friend has a mini cooper s jcw 210cv, now change the cam with a premium gozzoli.... I have the diagrams of the intersections and all ... according to you... how to act in the map to make a good map with the new cams???

[munro]

but as the volume??

[rego88]

in the annex to the intersections of the cam ori and of the cam that are installing on cooper... thanks a lot!!!
2977

[rego88]

you munro talk about the volume!! sorry... but before I had gone into standby the pc!!!

[munro]

an axis cams pi? "pushed" timing and lift up typically improves the volumetric efficiency, which translated means more air in the combustion chamber so more air means more benza addition, of course, the fact that the engine "pu? stretch" rpm even if you "empty" a p? under...
my advice ?,given that a volumetric how ? comformato ? much more problematic to tune a supercharged turbo,fit a player stoichiometric serious and reliable, and to map the drive, taking into primary consideration for this parameter.....given that the volumetric structure heats up a lot in the air of the turbocharger and the intercooler on the mini for the position and the dimension that it has not ? its efficient, I suggest you to "pararti in the ass" with a reader afr because on this type of engines to be with a nice hole on the pistons ? very simple....
although I must say that the engine pentagon of mini and very sturdy.....for? why? risk....
ah remember that if you move the rev limiter, therefore, the volume will be running? faster resulting in innalzzamento of the press of the turbocharger, and then a tuning of the fuel mixture as a result of this....
not least.....eye to the advance of the ignition...it would be advisable to monitor the log the temp charge air and the knock sensor......

[rego88]

thanks munro for the answer.... in fact, for pararmi the ass.... I have in mind 2 things.... the first.... a nice player, afr.... that I build and I taro alone.... at least I know that voltage turns on the lights.... then, a nice gauge prex turbo ec I.... the guy in the mini ? bravo.... and as if it ? noticed that the gases present are literally doing sucks, use a bottle of octane, always, but, this is not ? evil monitor the knock sensor to know when to get to detonate.... beautiful story to find the maximum limit of advance!! with regard to the benza.... the carbide tool afr.... you I advice munro?? at that voltage I fixed it for the right relationship???

[munro]

you should at least understand that voltage/afr works the car ori....via a beautiful log accurate that maybe also include the advance payments and the knock sensor....
after you have established this begin to map remaining a p? more fat fuel to avert the dangers and see how it behaves...if not ? "very dirty" in the provision, and does not consume time to leave the cos? otherwise you get closer as the afr to the ori being always attentive to all the parameters....
usually with turbo benza under boost you st? around aj to 12.5:1, but with the volume ? a whole other story why? ? always ? however sottoboost....

[rego88]

if I'm not mistaken.... the 12.5 to 1 should correspond to 850 mV I confirm munro?? I would not tell you bullshit, I checked a long time by the ori, but it was something kind 870/900 mvolt the lambda in the diagnosis...cmq time back I tried to map this car.... with poor results, on the contrary, in the moment that riaffindavo, I had the best map ori, I gave a 3% of gasoline in the most.... but the car was worse.... I believe that an engine with the compressor must stay more lean compared to the turbo.... on this at least, when I tried as you say, he was more awkward as affondavi!!!

[munro]

I do not even thou is wrong to say that the volumetric should go more lean.....
the mange of these engines and that if you do not orchestrate itself all the perfection of the engine will be running? never nice as a turbo compressed.....if you have increased by 3% benza, you have to be l? to see if with a p? in advance or less solve the "clumsiness"..
in short, in comparison to a turbocharged ? much more mangy to set up, why? requires a fuel mixture and an advance perfect in all the transients....

[rego88]

but then, as I find myself 870/900 mvolt ori without touching a screw?? you say that should be 12.5 to AFR... but so fat there has never shot neanke ori!!

[munro]

The stechio varies from 14.7-14.8 for the minimum,14,3-14,5 a partial loads, 14 full-load without boost and 12.5 in boost....

[marco1985]

sorry, but in my small experience of the mapper, I say to you that I do not mapperei never ever a machine based on the values for anything precise, of a probe to 1 volt, if mappo, I always go to wideband, separate from the electrical circuit of the machine, read from the probe to the original, according to me can happen, just to get an idea, but not for the map, am I wrong?

[faberecu]

true , stecchio in real-time and to the roller braked , the car petrol engines are very sensitive and if detoni break , who has a lot of + experience tells me that the maps are only done to the engine brake (engine test bench) that the rollers are not reliable , in the absence of better sw+ lambda fast ? better than nothing , I on the mini, I would change the pulley of the volumetric + cams

[rego88]

hello, this has the pulley smaller, jcw kit and cams.... really? ? was made on the road.... and anyway ? braking.... but I know you have a reason to watch the wideband.... ? one thing that I wanted to do..... I also who pays, but we haven't done that yet....