What do you rev up to in 1st

sleepermax · 03-28-2006, 12:44 PM

Just got my 330, MT, SP last week. After a week of driving I'm still trying to figure out how to achieve a smooth transition from 1st to 2nd. It's been a little frustrating. What do you guys suggest I try?

Also, when shifting at any gear, the clutch begins to engage smoothly and linearly then all of a sudden it fully engages causing a very slight "bump" feeling. Is this due to the CDV?

HRC · 03-28-2006, 12:50 PM

Normal driving, just below 4K. Above that for more fun. Most of the time, I drive normal.

Danny

epiphone3 · 03-28-2006, 01:06 PM

Quote:

Originally Posted by sleepermax

Just got my 330, MT, SP last week. After a week of driving I'm still trying to figure out how to achieve a smooth transition from 1st to 2nd. It's been a little frustrating. What do you guys suggest I try?

Also, when shifting at any gear, the clutch begins to engage smoothly and linearly then all of a sudden it fully engages causing a very slight "bump" feeling. Is this due to the CDV?

You just have to get your timing right... my 1st to 2nd goes fine and I just don't rush it. Put some pressure on the selector lever as you push in the clutch and it should slide right from 1 to 2 with a notchy feel then let up the clutch according to feel. Things should go smooth like this. The "bump" feeling is either you or there is some problem. My 3 has perfect clutch action, in my opinion. The CDV is something a lot of people blame sloppy shifting on.

vladinecko · 03-28-2006, 01:10 PM

when i want a very smooth shift from 1 to 2 i only rev up to right below 2k. this will cause you to be around 1k when you enter the 2nd gear so you'll have no push power but it's very easy to make it smooth that way.

paullo · 03-28-2006, 04:10 PM

Anywhere between 3,000-4,000 RPM's will get you into 2nd gear smoothly. Once, you've gotten the car broken in, anything above that will be quick and buttery.

Enjoy your new ride

gdnyc · 03-28-2006, 04:13 PM

Quote:

Originally Posted by sleepermax

Just got my 330, MT, SP last week. After a week of driving I'm still trying to figure out how to achieve a smooth transition from 1st to 2nd. It's been a little frustrating. What do you guys suggest I try?

Also, when shifting at any gear, the clutch begins to engage smoothly and linearly then all of a sudden it fully engages causing a very slight "bump" feeling. Is this due to the CDV?

I have been having the same problem. It's a matter of timing.

Bimmerista · 03-28-2006, 04:33 PM

I agree that shifts into 2 above 3,000 rpm are smooth, below it is more of a hit and miss for me.

ward · 03-28-2006, 04:35 PM

I'm not sure why you'd shift much earlier than that anyways

unless it's a shift into 6th on the freeway you shouldn't shift that early

petesamprs · 03-28-2006, 05:08 PM

For a smooth 1-2 shift, shift quickly if you're below 4k, but slowly if you're above it.

When you redline 1st and want to shift into 2nd, you have to drop by about 3000rpm for that same speed in 2nd. In order for there to be no jerk forward (ie, engage 2nd at too high an RPM for that speed), you have to slow down your shift so you catch 2nd at about 4000 rpm.

If you want to shift from 1st to 2nd at about 3500rpm in 1st, you only have to drop to about 2000 rpm in 2nd, so you have to shift much faster to rev match since that's only 1500rpm difference.

as said, it's all about the timing and how hard you're running.

EDIT: here's my previous thread on a similar topic.

shimshimhada · 03-28-2006, 05:10 PM

I shift at 3K, try getting back on the throttle a bit quicker after you let the clutch engage completely.

sleepermax · 03-29-2006, 12:09 AM

Thanks for the great feedback everyone.

03-28-2006, 12:44 PM	#1
sleepermax Private 3 Rep 64 Posts Drives: 330i TiAg MT SP Join Date: Feb 2006 Location: Austin, TX iTrader: (0)	What do you rev up to in 1st Just got my 330, MT, SP last week. After a week of driving I'm still trying to figure out how to achieve a smooth transition from 1st to 2nd. It's been a little frustrating. What do you guys suggest I try? Also, when shifting at any gear, the clutch begins to engage smoothly and linearly then all of a sudden it fully engages causing a very slight "bump" feeling. Is this due to the CDV?
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03-28-2006, 12:50 PM	#2
HRC MAUI BUILT 485 Rep 7,781 Posts Drives: 2006 330i MT Join Date: Jun 2005 Location: NORCAL iTrader: (10) Garage List 2002 E46 325i [0.00] 2012 E70 35i [0.00]	Normal driving, just below 4K. Above that for more fun. Most of the time, I drive normal. Danny __________________ Arctic/Blk Leather/Alum.Trim/MT/ZSP/Sunshades/Blk Lines/M3 Illuminated Knob/Alcantara Performance Wheel/M-E-Brake Handle/Euro Fog Switch/Koni Yellows/H&R Sport Springs/19" VMR V718's w/PS2 Tires/M-Tech Body Kit/Carbon Fiber Spoiler/Bimmian Interior Bulbs/OEM Eye Glass Tray/SSK/Alcantara Boot/Split Armrest/OEM Dual Rear Power Outlets/Rear Ashtray Delete/OEM Alum. Pedals/Osram 6000K/Brex Rings/LED Side Markers/BMS Power Box
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03-28-2006, 01:10 PM	#4
vladinecko Brigadier General 277 Rep 3,924 Posts Drives: '11 E92 M3 Join Date: Jun 2005 Location: Bay Area, CA iTrader: (1) Garage List 2011 BMW M3 [9.00] 2008 BMW 335i [0.00] 2006 BMW 330i [0.00] 1994 BMW 325i [0.00]	when i want a very smooth shift from 1 to 2 i only rev up to right below 2k. this will cause you to be around 1k when you enter the 2nd gear so you'll have no push power but it's very easy to make it smooth that way. __________________ 2011 E92 M3 - IB/Beige/Sycamore Wood/6MT/EDC/ZPP2/Nav/PDC/Heated Seats/iPod-USB/Enh. Audio 2008 E92 335i - Montego Blue/Black/Gray Poplar/6MT/ZPP/ZSP/Nav/PDC/Heated Seats/HDRadio/iPod-USB - *Sold* 2006 E90 330i - Mystic Blue/Black/Aluminum/6MT/ZPP/iDrive/PDC/Heated Seats/Sat. Prep - *Sold* 1994 E36 325i - Boston Green/Beige/Automatic/ZPP/Heated Seats/Premium Sound - *Sold*
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03-28-2006, 04:10 PM	#5
paullo Captain 28 Rep 686 Posts Drives: ThreeThreeFive Join Date: Jun 2005 Location: Vancouver, BC iTrader: (1) Garage List 2008 335i [0.00]	Anywhere between 3,000-4,000 RPM's will get you into 2nd gear smoothly. Once, you've gotten the car broken in, anything above that will be quick and buttery. Enjoy your new ride __________________ 2008 335i \| Sport \| Premium \| USB \| SSK \| æ \| Unsprung Diet 2006 330i \| Sport \| Premium \| Active Steering \| M-Sport Aero Kit \| Retired
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03-28-2006, 04:33 PM	#7
Bimmerista Major General 82 Rep 5,732 Posts Drives: superstock Join Date: Aug 2005 Location: Montreal, Quebec, Canada iTrader: (0)	I agree that shifts into 2 above 3,000 rpm are smooth, below it is more of a hit and miss for me.
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03-28-2006, 04:35 PM	#8
ward Major General 155 Rep 6,158 Posts Drives: F Join Date: May 2005 Location: T iTrader: (0)	I'm not sure why you'd shift much earlier than that anyways unless it's a shift into 6th on the freeway you shouldn't shift that early
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03-28-2006, 05:08 PM	#9
petesamprs Lieutenant 34 Rep 519 Posts Drives: . Join Date: Aug 2005 Location: northeast iTrader: (0)	For a smooth 1-2 shift, shift quickly if you're below 4k, but slowly if you're above it. When you redline 1st and want to shift into 2nd, you have to drop by about 3000rpm for that same speed in 2nd. In order for there to be no jerk forward (ie, engage 2nd at too high an RPM for that speed), you have to slow down your shift so you catch 2nd at about 4000 rpm. If you want to shift from 1st to 2nd at about 3500rpm in 1st, you only have to drop to about 2000 rpm in 2nd, so you have to shift much faster to rev match since that's only 1500rpm difference. as said, it's all about the timing and how hard you're running. EDIT: here's my previous thread on a similar topic. __________________ '14 535i (ED) Retired: '08 M5, '08 550i (ED), '06 330i
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03-28-2006, 05:10 PM	#10
shimshimhada Brigadier General 442 Rep 4,838 Posts Drives: Portal Join Date: Jul 2005 Location: Portal iTrader: (2)	I shift at 3K, try getting back on the throttle a bit quicker after you let the clutch engage completely.
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03-29-2006, 12:09 AM	#11
sleepermax Private 3 Rep 64 Posts Drives: 330i TiAg MT SP Join Date: Feb 2006 Location: Austin, TX iTrader: (0)	Thanks for the great feedback everyone.
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