Z4M's

SunnyD · 07-23-2007, 09:20 AM

Hey all fellow Z4M'ers, I was wondering if anyone could tell me the max. speed in each gear. I did a search but couldn't find anything. TIA

Dammmittt · 07-23-2007, 09:29 AM

I know I've seen a thread on this somewhere, if its not here its on bimmerfest...

Dammmittt · 07-23-2007, 09:31 AM

I looked, I can't find it...

Rick Hunter · 07-23-2007, 11:07 AM

I think I get ~70mph at redline in 2nd gear. Anything after that determines how fat the speeding ticket is.

Caddyshk · 07-23-2007, 01:13 PM

Here you go...

killjohnnyforan · 07-23-2007, 01:14 PM

1st-40 2nd-70 3rd-100 4th >120

SunnyD · 07-23-2007, 04:39 PM

Thanks guys!

Dammmittt · 07-23-2007, 07:03 PM

Just make sure you dont' actually get it up to 14000 RPMs

155MPH · 07-23-2007, 07:51 PM

What? Where is 6th gear?

Dammmittt · 07-23-2007, 07:55 PM

Since the chart only goes up to 150...it's off the chart.

155MPH · 07-23-2007, 07:59 PM

Quote:

Originally Posted by Dammmittt

Since the chart only goes up to 150...it's off the chart.

Are we looking at different charts? The chart I am looking at shows 5th gear, 8K RPM hitting 171.

Rick Hunter · 07-24-2007, 12:55 AM

I guess you're going to just have to try it out...

Dammmittt · 07-24-2007, 07:58 AM

Quote:

Originally Posted by 155MPH

Are we looking at different charts? The chart I am looking at shows 5th gear, 8K RPM hitting 171.

Yeah we were...I was looking at the top chart

155MPH · 07-24-2007, 06:42 PM

Quote:

Originally Posted by Dammmittt

Yeah we were...I was looking at the top chart

And I was looking at the bottom chart....

So, I ask again....WHERE IS SIX GEAR IN THESE CHARTS??????

epbrown · 07-24-2007, 09:11 PM

Quote:

Originally Posted by 155MPH

So, I ask again....WHERE IS SIX GEAR IN THESE CHARTS??????

Why do you ask? Isn't the car slower in sixh gear, because it's got a .85 ratio, compared to 1.00 in fifth gear? At max rpms, the wheels are turning 15% fewer revolutions than in fifth. Good for fuel economy, for speed, not so much.

Dammmittt · 07-24-2007, 09:39 PM

If you want the car to go faster than 170 than you'll need 6th.

Dammmittt · 07-24-2007, 09:40 PM

I never got past 155 in 5th in mine come to think of it...I'd rather shift and not blow up my shit. That's just me tho

Artz 330 · 07-24-2007, 09:49 PM

wtF? i cant hit 70 in second gear in 2nd..

Dammmittt · 07-24-2007, 09:58 PM

That cuz of 2 reasons.

1. 8180 is past your redline

2. I'm sure the chart was made measuring wheel speed in each gear, and it doesn't factor in wind resistance.

155MPH · 07-25-2007, 07:09 AM

Quote:

Originally Posted by epbrown

Why do you ask? Isn't the car slower in sixh gear, because it's got a .85 ratio, compared to 1.00 in fifth gear? At max rpms, the wheels are turning 15% fewer revolutions than in fifth. Good for fuel economy, for speed, not so much.

Okay, so then by that logic 5th gear should be slower than 4th, 4th gear slower than 3rd, 3rd gear slower than 2nd and 2nd gear slower than 1st.

I thought, but someone who understand this stuff needs to keep me staight here, that the principle was that the higher gear meant the rear wheels made more revolutions at the same RPM than the next lower gear. Isn't your math backward? If you carry the math in the tables out to a .85 gear for 6th, then the RPM/10 miles per hour for 6th gear is 396.5, MPH/1000 RPM is 25.22068 and top speed in 6th gear at 8000 RPM should be 201.76544.........theoretically speaking.....

inTgr8r · 07-25-2007, 07:25 AM

Quote:

Originally Posted by 155MPH

Okay, so then by that logic 5th gear should be slower than 4th, 4th gear slower than 3rd, 3rd gear slower than 2nd and 2nd gear slower than 1st.

I thought, but someone who understand this stuff needs to keep me staight here, that the principle was that the higher gear meant the rear wheels made more revolutions at the same RPM than the next lower gear. Isn't your math backward? If you carry the math in the tables out to a .85 gear for 6th, then the RPM/10 miles per hour for 6th gear is 396.5, MPH/1000 RPM is 25.22068 and top speed in 6th gear at 8000 RPM should be 201.76544.........theoretically speaking.....

Simply, there's more losses driving an overdrive gear.
Basically in overdrive the engine will run out of twist before it runs out of revs.

epbrown · 07-25-2007, 10:34 AM

Quote:

Originally Posted by 155MPH

Okay, so then by that logic 5th gear should be slower than 4th, 4th gear slower than 3rd, 3rd gear slower than 2nd and 2nd gear slower than 1st.

D'oh, you're right, I'm thinking of that backwards.

Never mind me.

07-23-2007, 09:20 AM	#1
SunnyD Major 452 Rep 1,289 Posts Drives: M4 GTS Join Date: Dec 2006 Location: Long Beach, CA iTrader: (0)	Z4M's - Max Speed in Each Gear? Hey all fellow Z4M'ers, I was wondering if anyone could tell me the max. speed in each gear. I did a search but couldn't find anything. TIA __________________ '16 ///M4 GTS '11.75 ///E90 M3 ZCP \| DCT '06 ///M5 \| SMG - Gone '98 ///M3 \| 5MT - Gone '07 ///M Coupe \| 6MT - Gone
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07-23-2007, 09:29 AM	#2
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I know I've seen a thread on this somewhere, if its not here its on bimmerfest... __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-23-2007, 09:31 AM	#3
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I looked, I can't find it... __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-23-2007, 11:07 AM	#4
Rick Hunter Skull Squadron Leader 304 Rep 2,031 Posts Drives: '07 M Coupé & '16 435xi GCoupé Join Date: May 2007 Location: The Emerald City iTrader: (20)	I think I get ~70mph at redline in 2nd gear. Anything after that determines how fat the speeding ticket is. __________________
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07-23-2007, 01:13 PM	#5
Caddyshk M = Midlife Crisis 65 Rep 2,006 Posts Drives: 2006 Z4MC Interlagos Join Date: May 2007 Location: Fort Erie, Ontario, Canada iTrader: (0)	Here you go... Attached Images __________________ 2006 Z4MC - #LL93158 SS Race Cans, RE X Pipe, DKF Sec 1, Fabspeed Headers, OE STB, AS Shifter, Dave Z CDV, GC Coil Overs, Stoptech lines, Hawk DTC Pads, RE Clutch Stop, RE Transmission Mounts, Vibra-Technics Engine Mounts, Poly FCAB & RTAB, LeatherZ M Shift Boot, Tekarbon Rear Spoiler, CF Grills, Advan RS DGM
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07-23-2007, 01:14 PM	#6
killjohnnyforan First Lieutenant 29 Rep 339 Posts Drives: ///M Coupe Join Date: Jun 2007 Location: NY iTrader: (1)	1st-40 2nd-70 3rd-100 4th >120
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07-23-2007, 04:39 PM	#7
SunnyD Major 452 Rep 1,289 Posts Drives: M4 GTS Join Date: Dec 2006 Location: Long Beach, CA iTrader: (0)	Thanks guys! __________________ '16 ///M4 GTS '11.75 ///E90 M3 ZCP \| DCT '06 ///M5 \| SMG - Gone '98 ///M3 \| 5MT - Gone '07 ///M Coupe \| 6MT - Gone
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07-23-2007, 07:03 PM	#8
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Just make sure you dont' actually get it up to 14000 RPMs __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-23-2007, 07:51 PM	#9
155MPH Major 61 Rep 1,379 Posts Drives: E89 Z4 sDrive28i M Performance Join Date: May 2007 Location: South Jersey Shore iTrader: (0) Garage List 2019 BMW xDrive430i ... [0.00] 2014 BMW Z4 sDrive2 ... [5.00]	What? Where is 6th gear?
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07-23-2007, 07:55 PM	#10
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	Since the chart only goes up to 150...it's off the chart. __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-24-2007, 12:55 AM	#12
Rick Hunter Skull Squadron Leader 304 Rep 2,031 Posts Drives: '07 M Coupé & '16 435xi GCoupé Join Date: May 2007 Location: The Emerald City iTrader: (20)	I guess you're going to just have to try it out... __________________
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07-24-2007, 09:39 PM	#16
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	If you want the car to go faster than 170 than you'll need 6th. __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-24-2007, 09:40 PM	#17
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	I never got past 155 in 5th in mine come to think of it...I'd rather shift and not blow up my shit. That's just me tho __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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07-24-2007, 09:49 PM	#18
Artz 330 Colonel 196 Rep 2,486 Posts Drives: Z4M, 335i, 135i Join Date: Dec 2005 Location: Lawrenceville, NJ iTrader: (4) Garage List 2006 330i [0.00]	wtF? i cant hit 70 in second gear in 2nd.. __________________
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07-24-2007, 09:58 PM	#19
Dammmittt My favorite sign. 169 Rep 4,333 Posts Drives: 2007 M Coupe Join Date: Dec 2006 Location: Der Autobahnen iTrader: (0)	That cuz of 2 reasons. 1. 8180 is past your redline 2. I'm sure the chart was made measuring wheel speed in each gear, and it doesn't factor in wind resistance. __________________ 07 ///M Coupe (Premium Package) Black Saphire Ext. Imola Red Int. Best Website EVER!
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