YOUR RESEARCHBump in throttle at 3,000 RPM?
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I don't think this is a problem, but I have made an observation that seems to occur quite frequently. If I accelerate (doesn't seem to matter which gear) with moderate to high acceleration it seems like there is a boost of power/acceleration that hits right around 3,000 rpm. Does anyone else notice this? I have an 02 C4 Cab.
It should kick in around 4200rpm since thats when the engine opens up.
Yes. Its the variable valve timing doing its thing. Normal.
For '02 and up, it's both a change in the variocam and ignition timing, usually around 3200 rpm. There is also a subtle change in the exhaust note, more evident with PSE. The surge is usually most evident on a gentle acceleration, less on WOT. So, stop being a wuss and floor that sucker!!!
yup. around 3200 for me
Same here, right around 3,200 RPM
Excellent. I'm glad that others have noticed this too. Thanks for the info!!
Exactly correct! This is when the bigger lobes of the cam kicks in for extra power and torque delivery in the higher RPMs.
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