16v tuning

[tshirt2k]

It would. But when people tuning them for best response. It's usually rich. Global timing is also adjusted. This base setting can usually be between 6-10 deg. Depending on engine.

3.5CO% is the limit on mk2 for MOT.

[Gambit]

again where are you getting all this from? and are you certain its for K-jet cars?

kjet 16v's run lean at higher rpm's, if increasing the mixture is an attempt to get round this then its a cheap way to do it

global base timing is set by increasing it until it pinks then backing of slightly. 16v is 8degrees as standard depending on the quality/ron of the fuel used you have window either side so that would explain your 6-10degree

[tshirt2k]

Again! Why question it?

Yes for kjet! And timing is 6 deg standard take a look at the map below. 8 degrees will probably shift timing for better performance. They run up top end and WUR mod is a crude way to compensate for this. The info comes from someone who regularly tests the EA827 16v engine on a dyno in many configurations and I trust their judgement. I'm not suggesting anything other than running on +97RON fuel. I have seen written that people have used 10 deg. Unsure what spec of engine.



I'm not interested particularly in kjet. It does the job but a standalone system beats it by far.

[Gambit]

the reason im questioning it because i have never heard tell of anyone running 6.0% on kjet, nor have i seen any information to back this up. i assume you are quoting Toyotec of the main clubgti.com site?

[tshirt2k]

I seem to recall the figure being that high, I may have misquoted. I can't seem to find where it was mentioned. This is due to adjusting for "feel" rather than figures.

Emissions are not always a concern with friendly MOT places.

[danny_p]

1st step of K jet tuneing

make sure the injectors actualy atomise the fuel.

2nd step equlise the flow of injectors,  amazing how far out some of them are

3rd step make sure the WUR actualy works and do basic sytem setup

some people rediscover 20+ BHP there


as for running it very rich,  if you can get more spark advance on by doing it and it pulls harder for it  do it ( if your no fussed about economy )

[tshirt2k]

Yep and that! In search of more power you don't tend to think of how much economy you'll get.