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Originally Posted by honda06si
at this time im having no problems, ive had alot of problems but most everything has been fine tuned by me, and why it took so long is because this is my first turbocharged car...and honestly i dont have much patience..
anyways right now yes my boost gauge is jumping around from like 6-8-7-5 but it has been cold here, like in the 30's and 40's. so im guessing thats it, so i wont be able to tell until i get a warm day
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Actually, esx005's boost gauge jumps around like that too and it's been about 60+ here the last couple of days. I've been kind of curious as to why this is and now that I know that you've got the same thing going it seems a little odd to me, to say the least.
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Originally Posted by 2RotorMotor
Idle has nothing to do with how much boost he is running. If he is running 10.5 a/f @ idle then that is completely horrible.. As a matter of fact, if that is true, then it should be smoking really bad @ idle or wanting to stall out.. Idle a/f should be pretty much in the 20's.. Anyways, Im not sure how they tune the car, whether its with the map or maf(even though I think they said that @ WOT the car uses solely the map sensor) but it shouldnt matter how high they tune the car for, anything under that should be running fine.. I've tuned before than I can tell you from experience. Tuning is done through tables and you tune for the values of rpm or map.. Even though I have no idea how the tuning is done through the stock ecu, basically all ecus work in the same way...
If he is having problems with fuel then he needs to start checking his oil for the smell of gas.. Runing that rich gas can contaminate the oil which dillutes it and can cause cylinder scarring and other problems.. This should be taken care of before he makes any upgrades in boost...
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I didn't mean to imply that upping the boost would help his a/f at idle, I was more talking about the fact that he has 650 injectors instead of the 630 that the car is tuned for. A short conversation was had with ajp about this and they themselves said this would make it run rich, but it was a precaution they took against it leaning out in any way. The only time it does lean out is in 6th, which is only used for economy so that doesn't bother me at all.
It's odd though because it's only at idle and even then it only is around 10.5 when he first starts it up. When it warms up a bit (about 5 bars) it still runs rich, but only around 11.4 or so. When under boost runs right around the same.. 11.4. I don't know what it would do with the 630 injectors, but I would think that difference in size would easily make up for the richness.
I think now would be a good time to make sure that everyone knows that I in no way claim to be a mechanic.. I'm learning about all of this as it happens with his car so any input is greatly appreciated (as long is it's not one line posts that say **** ajp, cuz that doesn't help at all).