John A,

I can't help making a comment about your compressor wheel (avator), isn't it about time you change the bearing? one day it will fly off the edge of the screen, I hope it won't be mine.

JohnA: Sorry no web site, but the data i collect will be freely available for anyone to use.

PuntoRex: Dont have any means to record ecu data at present, but i am cosidering

http://www.espautomotive.com/trolleyed/index.htm

Gelf,

As previous query, did you "feel" any difference among all these jets?

Sorry for not responding :oops:

I can only say that i percieved drop in performance with all jets, no matter what size (at WOT). At say 3/4 throttle im sure i expierenced increased performance with the 0.6 and 0.7 jets.

Not conclusive im afraid :?

Something else the graph showed, the cold air pickup was drawing hot air from the engine bay on occasions. Some investigation needed there :sad:

That's totally unexpected!! :shock:

With pre-comp injection only, bogging down shouldn't happen, at least on those smaller jets.

Would it be "too cold" of the incoming air? At 5~15C, not quite, I guess.

It's odd!

If we can see the A/F info might helps.

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Once I made the fuel pressure way too high, the acceleration force declined obviously. It seemed the energy produced by the engine was held back by itself, like holding fists tightly with popped-up veins but doing nothing.

Another case was injecting too much water in cold winter, it seemed the fire was put out somewhat. Bogging down was easily sensible. It felt weakened, diluted, emptied. The original feeling of solid strength was gone.

Net effects seem similar, but the "feeling" are different.

At WOT, when WI activates, i can see the needle on the boost gauge drop substancially :?

Supposedly there would be an on-board air temp sensor somewhere on the intake track or manifold which affects ECU's action on fueling/igniction (even boost maybe).

Is your boost control actuated directly by ECU? Or you use a third party controller?

You can see the sensor in this pic, where the IC connects to the blue pipe.

http://www.imagehdd.com/d1y2004/4025IM001159.jpg

Yes, boost is contolled directly by the ecu.

It's perfectly balanced, Richard, freshly reconditioned. :lol:
Apparently it's the shadows that move around, giving the impression of imbalance. I'll see if I can fix this, but it's purely cosmetic. It holds boost fine!