Power blip at 3200rpm
#1
Power blip at 3200rpm
I've noticed a blip in power (increase) while accelerating, usually at 3200rpm.
Generally, I've noticed it under moderate acceleration around town. Seems consistent in all gears, but I notice it most in 2nd and 3rd as that's where I drive through 3200 the most. This happens with the accerator steady, just letting the engine push itself up to speed.
Anyone else experience this? Is it cam/timing related?
Generally, I've noticed it under moderate acceleration around town. Seems consistent in all gears, but I notice it most in 2nd and 3rd as that's where I drive through 3200 the most. This happens with the accerator steady, just letting the engine push itself up to speed.
Anyone else experience this? Is it cam/timing related?
#4
So, this is exactly what I figured. I should have known the term 'variocam'.
Theoretically speaking, wouldn't this blip cause a problem on the track? Accellerating out of a long corner, at the limit of lateral traction, wouldn't the blip cause a wiggle?
I also noticed this blip at a DE event. I wasn't push the car very hard but, rather, was working on being as smooth as I possilby could be. This blip was starting to bug me. I wondered if my instructor thought my throttle application wasn't very smooth...
Theoretically speaking, wouldn't this blip cause a problem on the track? Accellerating out of a long corner, at the limit of lateral traction, wouldn't the blip cause a wiggle?
I also noticed this blip at a DE event. I wasn't push the car very hard but, rather, was working on being as smooth as I possilby could be. This blip was starting to bug me. I wondered if my instructor thought my throttle application wasn't very smooth...
#6
Technically, a simple variocam comes in much higher (as on earlier 996's).
Variocam Plus -- comes in about 3,200 rpm and you can feel it as a significant push and the sound of the engine changes. With a passenger & light throttle, it can feel like you're not driving smoothly. Occasionally, I'll tell a passenger what's going on as the engine paramters shift from emphasizing torque to emphasizing hp.
Personally, I'd prefer that it came in somewhat more gradually rather than a solenoid-style on/off. But....I prefer to have it than not.
Variocam Plus -- comes in about 3,200 rpm and you can feel it as a significant push and the sound of the engine changes. With a passenger & light throttle, it can feel like you're not driving smoothly. Occasionally, I'll tell a passenger what's going on as the engine paramters shift from emphasizing torque to emphasizing hp.
Personally, I'd prefer that it came in somewhat more gradually rather than a solenoid-style on/off. But....I prefer to have it than not.
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#8
#9
I haven't noticed it at all, but now you're making me want to go for a drive just to test it out. After the last thread about this I tried paying attention during my commute and there was nothing obvious at any RPM in the 3k to 4k range.
#11
Are you serious? There is either a problem with the car or you have to be more observant!!
#15
I've noticed a blip in power (increase) while accelerating, usually at 3200rpm.
Generally, I've noticed it under moderate acceleration around town. Seems consistent in all gears, but I notice it most in 2nd and 3rd as that's where I drive through 3200 the most. This happens with the accerator steady, just letting the engine push itself up to speed.
Anyone else experience this? Is it cam/timing related?
Generally, I've noticed it under moderate acceleration around town. Seems consistent in all gears, but I notice it most in 2nd and 3rd as that's where I drive through 3200 the most. This happens with the accerator steady, just letting the engine push itself up to speed.
Anyone else experience this? Is it cam/timing related?
It can feel like the engine is coming on the cam, so to speak.
Sincerely,
Macster.