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I dont know why am i experiencing this right now but it seems that mapping everything is much different with the strokeri have now. Dont know if this is because of the EM (MTM one) the big holset housing or the more distant placement of the Lambda than in my original RS2 setup with simply a bigger turbo but right now the lambda reading seem very laggy. Do you experience also something like this?
also remember that a wideband sensor is not great on stoich. its slowest area to react. a stock narrowband is fast response.
i have a sensor about 10 inches from the turbo and another about a foot further down. so bout 30cm from turbo in metric. bout 80cm for the other. maybe a little more.
i see. Do you know if VEMS has also through the motronic connector access to the stock lambda sensor cables. If so we could use a NB for low and WB for high RPMs.
check this out. i have the gauge but dont use it for feedback. pin 1 is an out from sensor. this applies always AFAIK for the bosch wb sensor. did with the Lc-1 also.
take a look in the ego settings on megatune. i have mine disabled. may take some work to get right. not sure.
narrow will quickly find 14.7. and accurately. it wont give accurate readings on other areas. thats why when people, fit AF gauges and say its holding fueling well i call BS or missunderstanding. AF gauges are great for checking probe operation. warm-up of probe time and WOT switch type actions. not a lot else. the wideband does the rest. i do always with issue wish people had af gauges as thye can help diagnose lots of things like bad earth broken wire. temp sensor. wot/idle switches.
it will in essence have the car running in the factory sense.
it may use more juice. there may be a way to manipulate the signals so that it thinks 15.2 for example is 14.7. not worth doing imo.
with the map what id suggest is starting with a 2.2 base. chekc the timing is correct and go for it. have a look at the % difference it takes to start the car on the crank. dont use this as gospel but take it into consideration when modding the cells.
target AF's should be the same. 15 ish for cruise i feel is fine. 11.5 would be my initial target for the boost. timing can be modded a little maybe. the stroker i think, im no expert on these ones should put the piston at TDC for longer.
my opinion is dont buy or tune these cars if you are fuel conscious. i set myself a 30 quid a week limit on juice. then im in the oil burner.
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