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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > How many times a day do you...



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      03-31-2008, 12:03 PM   #1
305coupe335i
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How many times a day do you...

Redline??
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      03-31-2008, 12:03 PM   #2
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      03-31-2008, 12:04 PM   #3
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dont lie to yourself!
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      03-31-2008, 12:05 PM   #4
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      03-31-2008, 12:07 PM   #5
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Should it be "a week" instead?
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      03-31-2008, 12:09 PM   #6
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dont lie to yourself!
Honestly. I dont see a need to redline this car. The majority of the powerband is from 2k - 5k rpm....
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      03-31-2008, 12:09 PM   #7
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Should it be "a week" instead?
in the morning its a banana and a monster energy. After work when the boss pisses me off all day, i dog the highway.
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      03-31-2008, 12:11 PM   #8
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Honestly. I dont see a need to redline this car. The majority of the powerband is from 2k - 5k rpm....
I agree, there is no real need for it while community.
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      03-31-2008, 12:13 PM   #9
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Yeah not often unless I miss-shift. You want to shift sooner than redline...
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      03-31-2008, 12:13 PM   #10
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the car im driving right now does not rev over 2500 RPM. even if you floor it and in any gear. american cars FTW
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      03-31-2008, 12:20 PM   #11
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If you mean go WOT since I have a step, I think everytime I accelerate. I rarely just ease in the gas.
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      03-31-2008, 12:23 PM   #12
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Never.
The highest I'll go is 6500.
Anything higher is lost hp.
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      03-31-2008, 12:33 PM   #13
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Originally Posted by Chitown335i View Post
If you mean go WOT since I have a step, I think everytime I accelerate. I rarely just ease in the gas.
yea i guess thats what i kind of meant. More of how often do you punch it. i agree redline is not necessary
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      03-31-2008, 12:49 PM   #14
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I very rarely redline this car... my s2000 was a much different story though. No torque FTL!
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      03-31-2008, 01:28 PM   #15
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Red lined my g35 perhaps 1ce a week... this e90... red line once a year.

way too much power for stop and go traffic and short runs.

ppp
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      03-31-2008, 01:34 PM   #16
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Quote:
Originally Posted by Mr. 5 View Post
Never.
The highest I'll go is 6500.
Anything higher is lost hp.
+100000
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      03-31-2008, 02:43 PM   #17
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+100000
Same here.Over 6500 is a waste unless you have cams,etc.
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      03-31-2008, 02:50 PM   #18
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so for the best 1/4 miles times you should shift at 6500rpms? with step?
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      03-31-2008, 02:50 PM   #19
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Quote:
Originally Posted by 305coupe335i View Post
Redline??
How many lights do I get stopped at and how many gears before the speed limit?

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Originally Posted by Mr. 5 View Post
Never.
The highest I'll go is 6500.
Anything higher is lost hp.
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Originally Posted by Dan335i View Post
Same here.Over 6500 is a waste unless you have cams,etc.
That's completely wrong, shifts are determined by torque through gearing, not by where HP peaks on a dyno, I'll post up an excel sheet in a few minutes.






You need to shift where the gear your in intersects with the next gear.
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      03-31-2008, 03:32 PM   #20
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Then do tell us.
What is the ultimate rpm to shift into each gear based on your graphs?
I understand what you're saying about the hp on a dyno when compared to gearing on a street, but I still consider it to be a waste when taking it all the way to the redline.

What program is that so I can see the ultime shifting point in each gear?


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Originally Posted by O-cha View Post
How many lights do I get stopped at and how many gears before the speed limit?





That's completely wrong, shifts are determined by torque through gearing, not by where HP peaks on a dyno, I'll post up an excel sheet in a few minutes.






You need to shift where the gear your in intersects with the next gear.
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      03-31-2008, 03:44 PM   #21
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Quote:
Originally Posted by Mr. 5 View Post
Then do tell us.
What is the ultimate rpm to shift into each gear based on your graphs?
I understand what you're saying about the hp on a dyno when compared to gearing on a street, but I still consider it to be a waste when taking it all the way to the redline.

What program is that so I can see the ultime shifting point in each gear?
You can consider it a waste if you like, that's your prerogative.

Input a dyno into an excel sheet then use the equation part to change the values based on gearing and another column to change the RPM into MPH. Then graph it MPH vs torque. But about 6700 6500 3/4 4/5.
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      03-31-2008, 04:18 PM   #22
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So redline in first and second, then 6700 from third to fourth?
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