what a/f/r/ should i run w.o.t on boost

i was thinking around 11 ish


1800 zetec turbo
4-7psi boost

 

too much i would be at 13-12.7 but use a EGT gauge and wach the temps up to 800c top at that boost

 

but i thought 12.5 was for n/a at w.o.t shurley i have to run bit richer on boost???????

 

no 12.5 is the best power eithr turbo and n/a

there is no frmula for that you should give you engine what he asks for beginig start rich and the lean it till the knok's but ther are more parameters to play with like ignition but all depends on your set up C.R 8v or 16v ect.....

my strong advice BE carful and use an egt gauge to!!! sart mapping from ninimal boost to max with steps no more tan 4-5 psi each time

 

low 12s would make a good guess on that given how little boost its running IMHO (you mention 4-7psi), but as above you need to try it and see what EGT's do.

 

can i by a egt gauge how much do they cost?? in my ecu in the code it has a gauge for egt what do u use as a probe?? what out put dose it have ?????

i take it it just acts like ect sensor but messure exhaust gasses?

thanks alot for input guys

ps i am running 11.5 a/f/r at the min just working on spk advance table then i will start to lean it off then when nocks retard timing about 5 deg dose this sound like proper way to go??

thanks alot guys
tommy

 

Sounds fine to me, although 5 degrees sounds very cautious, 3 should be nice and safe.

Is it megasquirt then?

 

how did u know that

sure is dose that sound about right

 

Cant think of any other ECU you would have access to the source code for


Yes, all sounds fine mate

 

what about egt sensor probe what is it any cars come with it that i could robb it of???

thanks for help mate

 

Some hondas have them, but trouble is you would need to calibrate it obviously against some known temperatures to know what voltage meant what to make any sense of it.

I personally would just buy an aftermarket gauge and sender calibrated to work together.

 

ok thanks alot mate will look into getting 1 got 3 spare bottom ends any how so this is a pure test engine if it dosent melt all the better


thanks again

tommy

 

Cool get winding that boost up too then once you have it mapped