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knucklesplitter · 2007-01-30, 08:53 AM

Where/when exactly do you get hesitation?

There is a small timing jump at 2400-2500rpm (but no knock), but I don't think you'd feel it. The low KC of 4 at 3390 indicates it's pulling timing there and you may feel that as a hesitation. You are knocking there and prolly in the 6000-6500rpm range too. Bad tank of gas maybe? Or something else...

Those AFRs must be from the stock sensor, right? They seem to peg at 11.02. Some readings from a wideband might tell us more.

On another note... I think you'd spool a little quicker if the lower boost levels were leaned out a little. 11:1 AFR at only 9-10psi is a little conservative IMO.

2007-01-30, 08:53 AM	#2
knucklesplitter EJ205 Real Name: Matt Taylor Join Date: Jun 2005 Location: Cousin-Fck, Carolina Posts: 1,474 Wish in one hand and sht in the other...	Where/when exactly do you get hesitation? There is a small timing jump at 2400-2500rpm (but no knock), but I don't think you'd feel it. The low KC of 4 at 3390 indicates it's pulling timing there and you may feel that as a hesitation. You are knocking there and prolly in the 6000-6500rpm range too. Bad tank of gas maybe? Or something else... Those AFRs must be from the stock sensor, right? They seem to peg at 11.02. Some readings from a wideband might tell us more. On another note... I think you'd spool a little quicker if the lower boost levels were leaned out a little. 11:1 AFR at only 9-10psi is a little conservative IMO.