31 August 2008

The Ghost's working out...

She has an aftermarket exhaust, she has a PC3 equipped onboard.
So its naturally dyno mapping time.



I asked for a more smoother fuel curve and a smoother general acceleration.
The Ghost is still on stock spark plugs (NGK CR9E) and stock air filter.

Well, the end result is not as what most performance avids would want.



Pretty modest numbers.
Norman, the dyno operator and the boss, noted that there is plateau (flat-spot) after 11K RPM onwards. He suspected its due to overpressure building up in the Y-section where the header pipe splits into the 2 endcans. Me, I suspect the stock air-filter is not feeding enough air in.

But the real test is on the road.
And, me thinks, its worth every cent I paid for the tuning.
It was much smoother on the acceleration. No more bogging down when I open the throttle from a stop. I used to had this reluctance to accelerate with the Giannellis on when moving off from a stop.
Its all smoothed out now.
The accleration is much more smoother on half-throttle up with not much jerkiness as I used to had on stock config, especially in the transition between low-range to the middle-range on the tachometer.
But the best was saved for last.
The next day, I gave it a run to test out the mapping on the NSH.
Starting off was smooth and ok. But the acceleration from 5K to 11K was like a jet taking off.
I've never had it accelerate that fast, ever.
It was so enjoyable I'm now afraid of playing it too much on the road.
Like that's going to be a worry. :D