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Combfilter, those are great numbers! Do you know when your headers are coming?
Yeah, the numbers are what they are. I am not concerned with them as much as the consistency. Considering I've been to 3 different dyno places over the last week, i was glad to get 1 place to do it right. The first place my car kept shifting into 5th even in manual mode so I wasted 75.00 there. 2nd place kept gunning it too early, and make the car down shift (another 75.00) there, and finally this place had a dyno jet, and had just dyno'd an IS the week before and knew not to gun up till the car was locked in 4th (at least they only charge 50.00). The consistency is what I am looking for, and I don't think you can get more consistent than that. I will get all the a/f - timing from carchitects scan tool. Then once I install the headers head back over to this place. All should be good.
i've found etc pwr helps you hold gears longer without a sudden shift. snow is probably the same system just with the throttle response lessened.
Snow mode allows the dyno operator to go full throttle at a much lower RPM without the transmission downshifting to 3rd gear (~2500 RPMs in 4th). Also, if you use manual mode, and set it to 4th gear, it will go all the way to the rev limitter without up-shifting to 5th. Throttle response doesn't matter at all for the dyno test, so there is no down-side.
EDIT: Combfilter also discovered, and I verified, that ETC-Power in auto mode doesn't hold RPMs even as long as Normal mode. It seems that ETC-Power is just a marketing thing since it just makes the car "feel" more powerfull (jerky).
Snow mode allows the dyno operator to go full throttle at a much lower RPM without the transmission downshifting to 3rd gear (~2500 RPMs in 4th). Also, if you use manual mode, and set it to 4th gear, it will go all the way to the rev limitter without up-shifting to 5th. Throttle response doesn't matter at all for the dyno test, so there is no down-side.
EDIT: Combfilter also discovered, and I verified, that ETC-Power in auto mode doesn't hold RPMs even as long as Normal mode. It seems that ETC-Power is just a marketing thing since it just makes the car "feel" more powerfull (jerky).
Everything Gernby said is true. Also to clarify, you can begin a WOT run in snow mode at 3500rpm as compared to 4500rpm in other modes.
05-17-08, 11:24 PM
