FtW_STi
04-09-2007, 09:59 PM
Hey guys,
So I got my new v2 AP today and it is really nice. The install was as easy as could be and I didn't have any problems. Anyways, I went for a drive afterwards to see how things were running and noticed two things. First, boost peaks (in 3rd and 4th) at around 16.9 -17.4 psi but quickly comes back down to the target of 16 psi. Is this just the ECU learning (is wastegate duty cycle one of the "learned" parameters), the reaction time of the wastegate, or boost spike? Is it something to worry about I guess would be a simplier question. Now the dynamic advance (I think that's what the DA stands for, I forget, whatever you know what I'm talking about) never goes negative while at WOT so I don't think its knocking, but I just wanted to see what everyone else had experienced. Second, when rolling through a parking lot at say 15 mph in 2nd with no throttle, DA is at 0.00. However, if you give it very (and I mean very) light throttle in this instance DA will go to -1.50 for a little and then come back to 0.00. Is this reason for alarm or normal behavior? As far as mods go, the only other thing on my car besides the AP is the SPT intake and heatshield (please don't ream me for my intake). Perrin TBE and stage 2 Protune in a month or so!!!
Any thoughts would be greatly appreciated.
Thanks
So I got my new v2 AP today and it is really nice. The install was as easy as could be and I didn't have any problems. Anyways, I went for a drive afterwards to see how things were running and noticed two things. First, boost peaks (in 3rd and 4th) at around 16.9 -17.4 psi but quickly comes back down to the target of 16 psi. Is this just the ECU learning (is wastegate duty cycle one of the "learned" parameters), the reaction time of the wastegate, or boost spike? Is it something to worry about I guess would be a simplier question. Now the dynamic advance (I think that's what the DA stands for, I forget, whatever you know what I'm talking about) never goes negative while at WOT so I don't think its knocking, but I just wanted to see what everyone else had experienced. Second, when rolling through a parking lot at say 15 mph in 2nd with no throttle, DA is at 0.00. However, if you give it very (and I mean very) light throttle in this instance DA will go to -1.50 for a little and then come back to 0.00. Is this reason for alarm or normal behavior? As far as mods go, the only other thing on my car besides the AP is the SPT intake and heatshield (please don't ream me for my intake). Perrin TBE and stage 2 Protune in a month or so!!!
Any thoughts would be greatly appreciated.
Thanks