Edgecrusher wrote:
Privy, the few tenths you refer to are exactly what I'm talking about more or less and yes they work the same but we are talking fuel mixture. I know this is very vague- every bodies' lungs are basically designed the same but everyone doesn't breathe in the same amount of air. That's basically the difference between our arguments.
Ok, but consider "a few tenths" is about 3/10,000 of an inch, or .0003, it isn't going to even show up on a dyno run.
Also, all bores are within ability to measure exactly the same volume. All intake runners machined by the same CNC equipement with more than .00001 accuracy. Probably .000001 or better. And then they flow bench them and it all has to pass, and its all going to flow the same. If it flows better, and you know the Japanese, they will pull the part and go back to where it was made, and figure out why, because they don't want any variance in manufacturing tolerance whatsoever, good or bad, they want zero.
The throttlebodies are the same, everything has to be made to spec, and Japanese specs are hugely precise. Take my ZX14, pull the throttlebodies off another 2008 (assuming its been maintained as well as mine, with period additives to clean the injectors, etc.) and put them on mine, and it will dyno exactly the same. Because the ECU won't let it be different.
So the dyno pull on a ZX14 made in January is going to be so close to the pull of one made in December, 12 months later, as to be undetectable by all but the very most experienced tuner.
And on the street, undetectable period.
Folks think because US-made stuff has historically had such large variances (and this is no longer true, because even Harley engine production is all CNC and flow-benched now) that the ZX14 would. This is an invalid assumption.
Its the same reason Brock Davidson can give me a street/strip map and it will run exactly as he predicts, and he has never seen my bike. He might, in the future.
So my question is, if Brock can do it, why can't FAICS ?
Living the Gypsy Life