Acceleration "burst" at 105 kmh

valjea00 · Post by **valjea00** » Mon Apr 28, 2008 1:41 am

Hello everyone, I own a 2005 Vibe with 5sp. Not a GT. When I'm driving on the highway, i feel an acceleration burst (nothing to break you neck..) Feels the sames as a lockup clutch engagement on an automatic transmission. Obviously I don't have a lockup on a MT. Any ideas? Nothing wrong with this I just wonder if this threshold inidicates something (like optimal driving speed...) I'm an engineer so I do tend to overanalyze.

WaveAction · Post by **WaveAction** » Mon Apr 28, 2008 6:48 am

it's never happened to me and i own a 2007 5 speed

kunkstyle · Post by **kunkstyle** » Mon Apr 28, 2008 7:25 am

That's the secret speed band where the uber-hidden twin turbo kicks in. GM designers put it in there as an 'easter-egg' of sorts.On a more serious note, I'd assume it just happens to be where you are on your rpm range.

Raven · Post by **Raven** » Mon Apr 28, 2008 7:54 am

Check your RPM. 3000ish. That's where the torque curve steepens. AKA "The sweet spot". You'll feel it in all gears at around the same RPM.

Celtic_Curse · Post by **Celtic_Curse** » Mon Apr 28, 2008 12:56 pm

What gear are you in.

Acceleration "burst" at 105 kmh

Acceleration "burst" at 105 kmh

Re: (WaveAction)

Re: Acceleration "burst" at 105 kmh (valjea00)