how do you prevent auto car from down shifting during dyno?

TxBeem · 08-30-2011, 02:25 PM

We're trying to prevent the car from downshifting. CAn someone help?

FedeM · 08-30-2011, 02:31 PM

Quote:

Originally Posted by TxBeem

We're trying to prevent the car from downshifting. CAn someone help?

In some car (not BMW) just simply keep pulled the paddleshift and it doesn't change gear. Dunno in BMWs. I've MT one.

onesuperboi · 08-30-2011, 02:33 PM

Don't go past the kick down button???

Mike@N54Tuning.com · 08-30-2011, 02:36 PM

Quote:

Originally Posted by onesuperboi

Don't go past the kick down button???

+1

Mike

KyLu II · 08-30-2011, 02:37 PM

put a little piece of wood/plastic that will prevent you to go into kickdown mode.

jdbretz · 08-30-2011, 02:39 PM

Put the car in manual mode, get it in the gear it needs to be in for the dyno run, then make sure when the dyno operator mashes the gas to begin the run, he doesn't push the gas pedal down far enough to activate the kickdown switch. If you look on the gas pedal, there is a button on the base. If that button is pressed, it will cause the transmission to down shift. You can feel the click when you press the gas all the way down then put a little pressure further. Just make sure the operator doesn't depress that switch and you'll be good to go.

only1 · 08-30-2011, 05:28 PM

Is the throttle open 100 percent if the pedal is not past kickdown?
I ask because i remember one of shiv's customers saying that at the track
Unless the pedal is pushed passed kickdown it will not open fully. Is this true?

happy4nk8er · 08-30-2011, 06:24 PM

I do not believe that is true, I recall Shiv saying we had 100% throttle opening at floored but pre kick down button.

tibra1 · 08-30-2011, 06:26 PM

Get an MT..

TxBeem · 08-30-2011, 07:41 PM

We got it to work. The tech knew about the foot switch. Recorded 263 up and 288 lbs of torque. This is completely stock I'm gonna get a dinan2 flash and re-dyno. And I have a FMIC that I just purchased so I'll get a dyne after that too. Temperature today was 104 degrees.

08-30-2011, 02:25 PM	#1
TxBeem Captain 97 Rep 651 Posts Drives: 2008 E90 Join Date: Jul 2010 Location: Dallas iTrader: (6)	how do you prevent auto car from down shifting during dyno? We're trying to prevent the car from downshifting. CAn someone help?
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08-30-2011, 02:33 PM	#3
onesuperboi Major 53 Rep 1,357 Posts Drives: '08 e92 335i COBB 4.01 Stage 1 Join Date: Aug 2008 Location: Bay Area, CA (Alameda) iTrader: (6)	Don't go past the kick down button???
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08-30-2011, 02:37 PM	#5
KyLu II FREE DREAMK 164 Rep 9,321 Posts Drives: the shiiit! Join Date: Aug 2009 Location: Vineland, NJ iTrader: (6) Garage List 2011 Lexus LFA [3.76]	put a little piece of wood/plastic that will prevent you to go into kickdown mode. __________________
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08-30-2011, 02:39 PM	#6
jdbretz Captain 53 Rep 923 Posts Drives: '18 X5d, '12 M3 ZCP, '12 F30 Join Date: Dec 2010 Location: FL Panhandle iTrader: (10)	Put the car in manual mode, get it in the gear it needs to be in for the dyno run, then make sure when the dyno operator mashes the gas to begin the run, he doesn't push the gas pedal down far enough to activate the kickdown switch. If you look on the gas pedal, there is a button on the base. If that button is pressed, it will cause the transmission to down shift. You can feel the click when you press the gas all the way down then put a little pressure further. Just make sure the operator doesn't depress that switch and you'll be good to go.
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08-30-2011, 05:28 PM	#7
only1 Lieutenant 28 Rep 513 Posts Drives: 07 Z06, 09 e90335i Join Date: Jul 2007 Location: Markham iTrader: (5)	Is the throttle open 100 percent if the pedal is not past kickdown? I ask because i remember one of shiv's customers saying that at the track Unless the pedal is pushed passed kickdown it will not open fully. Is this true?
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08-30-2011, 06:24 PM	#8
happy4nk8er Second Lieutenant 2 Rep 277 Posts Drives: 335i E92 Join Date: Jan 2009 Location: Milky way galaxy iTrader: (0)	I do not believe that is true, I recall Shiv saying we had 100% throttle opening at floored but pre kick down button.
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08-30-2011, 06:26 PM	#9
tibra1 Banned 132 Rep 6,773 Posts Drives: 2011 ZCP M3 - 2007 335i crashd Join Date: Apr 2009 Location: NYC iTrader: (4)	Get an MT..
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08-30-2011, 07:41 PM	#10
TxBeem Captain 97 Rep 651 Posts Drives: 2008 E90 Join Date: Jul 2010 Location: Dallas iTrader: (6)	We got it to work. The tech knew about the foot switch. Recorded 263 up and 288 lbs of torque. This is completely stock I'm gonna get a dinan2 flash and re-dyno. And I have a FMIC that I just purchased so I'll get a dyne after that too. Temperature today was 104 degrees.
	Appreciate 0 Quote