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Acceleration Lag

thebulk

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I've just done the two hole mod on my VZ SV6 and when I'm coasting in a particular gear with revs above 2000rpm and drop the foot the revs go up then down about 200rpm for a second then it climbs back up as I accelerate - it doesn't decelerate but it definately does not accelerate for a second........ thoughts......... - is this normal?
 

84dez

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does it in mine what are ur list of mods and is it auto or manual, i think its a torque limiters but yeah not sure
 

thebulk

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its an auto and the two hole mod is the only thing ive done. It happens even when i'm in A/S so not sure whats going on......
 

PaulSV6

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^^^mate he's in Melborne, not Sydney.

Sorry, cant help u out on this on. Ive done the 2 hole mod but mine is a 6spd manual & my SV6 doesnt do this. Not sire what it could be exactly.
 

Tuttle

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I've just done the two hole mod on my VZ SV6 and when I'm coasting in a particular gear with revs above 2000rpm and drop the foot the revs go up then down about 200rpm for a second then it climbs back up as I accelerate - it doesn't decelerate but it definately does not accelerate for a second........ thoughts......... - is this normal?
Would the increase in revs be due to the gearbox slipping into neutral and then when it selects a gear the revs drop again?
 

Torquative

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yeh mine does that, I have the HSV air box (essentially 2 hole mod) and an LS1 exhaust. Has been doing it for 2 years now without issue so I'll leave it :thumbsup:
 

thebulk

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Thanks guys - I'm pretty sure that it would be something to do with the transmission - I guess an A/S auto will never be a manual so you have to expect lag while it decides what it wants to do.....

Just thought I'd ask around - this torque management thing you talk about Fishmann is that a mechanical or an electrical device? is it connected to the traction control unit?
 

andyman

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im guessing torque converter is probably locking up, put it in power mode and try it, or flatten your foot, small throttle input may do that
 
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