big lag when shifting from 1st to 2nd on SMG

indohan · Fri, Dec-03-2010, 11:59:33 AM

DSC is:

Don't turn off DSC if you're not ready.
Set verocity to level 5.

If you still feel it's "lagging", then you must have switched gears below 4000 RPM.
Try switching it at 4000 RPM, it should solve your question.

Keep us posted!

nofronts · Fri, Dec-03-2010, 01:52:08 PM

Do you have the the most recent software for the SMG? If so try the reset other wise the gear position sensor may be on its way out, you'll know this if it starts to skip gears. Like 2-5.

jetmech · Fri, Dec-03-2010, 02:30:13 PM

Chances are you're experiencing normal operation of the SMG system. On my car, when shifting from 1st to 2nd at low RPMs (below 4000) I have to count "one thousand one one thousand two" before it has completed the gear change. At higher RPMs it completes the shift much faster.

If you think about it, and if you have driven a manual transmission car before, when you're simply tooling around town in traffic, you don't normally quick shift from 1st to 2nd anyway, so the SMG doesn't realy behave much differently then you would driving a manual trans yourself.

///M/Kenny · Fri, Dec-03-2010, 07:00:44 PM

Quote:

Originally Posted by jetmech

Chances are you're experiencing normal operation of the SMG system. On my car, when shifting from 1st to 2nd at low RPMs (below 4000) I have to count "one thousand one one thousand two" before it has completed the gear change. At higher RPMs it completes the shift much faster.

If you think about it, and if you have driven a manual transmission car before, when you're simply tooling around town in traffic, you don't normally quick shift from 1st to 2nd anyway, so the SMG doesn't realy behave much differently then you would driving a manual trans yourself.

^^^ This

Mine does the same. great info and answer. Sounds like normal operation to me also. It does take a bit of getting used to when you first drive the SMG.

EricSMG · Fri, Dec-03-2010, 08:10:46 PM

Most likely it's just not knowing how to drive the SMG car. If, for example, you're at level 3, and you're shifting @ 2.5k rpm AND you're lifting off the throttle.... it will shift very slow.

Suggestion: use level 4 (never anything less), shift a bit higher (like 3.5k rpm) and don't completely lift off the gas (just lift a little) and you'll be MUCH happier.

Either that or get a stick shift.... Ha!

**my_slO_srt** · Mon, Dec-13-2010, 06:18:32 AM

i leave mine on D5 all the time is that bad??? i shift around 3k 3200 no higher... lmk..

indohan · Mon, Dec-13-2010, 11:06:49 AM

Quote:

Originally Posted by my_slO_srt

i leave mine on D5 all the time is that bad??? i shift around 3k 3200 no higher... lmk..

Nothing wrong with that.
But switching it at 3K, when you're at level 5, seems like you're trying to bump up MPG.

Fri, Dec-03-2010, 01:52:08 PM	#12
nofronts Registered User Join Date: Dec 2008 Posts: 474 Reputation: 0 Location: Philadelphia	Do you have the the most recent software for the SMG? If so try the reset other wise the gear position sensor may be on its way out, you'll know this if it starts to skip gears. Like 2-5. __________________ 04 SMG Imola Red \| Black Cloth / Leather Interior \| Koni Yellow's \| Rouge RSM \| Power Flex RTAB \| JVT Headers \| Custom Performance CRT 400 Section 1 \| Turner Sub Frame Reinforcement \| Smoke Corners \| Kidney's & Gills Matte Black \| Angel Eyes \| CSL Diffuser \| CSL Boot Lid

Fri, Dec-03-2010, 02:30:13 PM	#13
jetmech Registered User Join Date: Mar 2010 Posts: 200 Reputation: 0 Location: McHenry	Chances are you're experiencing normal operation of the SMG system. On my car, when shifting from 1st to 2nd at low RPMs (below 4000) I have to count "one thousand one one thousand two" before it has completed the gear change. At higher RPMs it completes the shift much faster. If you think about it, and if you have driven a manual transmission car before, when you're simply tooling around town in traffic, you don't normally quick shift from 1st to 2nd anyway, so the SMG doesn't realy behave much differently then you would driving a manual trans yourself. __________________ Jetmech Saving pilots lives, one flight at a time 04 M3 SMG Oxford Green Previous BMW's: 97 M3/4 (M5) 98 328iC (Auto) 94 325i (M5)

Fri, Dec-03-2010, 08:10:46 PM	#15
EricSMG 30 something Join Date: Nov 2008 Posts: 6,560 Reputation: 0 Location: San Diego	Most likely it's just not knowing how to drive the SMG car. If, for example, you're at level 3, and you're shifting @ 2.5k rpm AND you're lifting off the throttle.... it will shift very slow. Suggestion: use level 4 (never anything less), shift a bit higher (like 3.5k rpm) and don't completely lift off the gas (just lift a little) and you'll be MUCH happier. Either that or get a stick shift.... Ha! __________________ *'04 46M 6MT \|\| '01 330Ci 5MT*

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Fri, Dec-03-2010, 11:59:33 AM	#11
indohan ///MFEST DARK KNIGHT Join Date: Aug 2009 Posts: 787 Reputation: 0 Location: Los Angeles	DSC is: Don't turn off DSC if you're not ready. Set verocity to level 5. If you still feel it's "lagging", then you must have switched gears below 4000 RPM. Try switching it at 4000 RPM, it should solve your question. Keep us posted!

Mon, Dec-13-2010, 06:18:32 AM	#16
my_slO_srt Banned Join Date: Nov 2010 Posts: 264 Reputation: 0 Location: North Port	i leave mine on D5 all the time is that bad??? i shift around 3k 3200 no higher... lmk..