Pre-steps to take before dyno

bboy8282 · 08-26-2012, 02:23 PM

Looking at getting my car dyno'd to see what kind of power my car makes (stock v. Stage 1 Drive v. Stage 1 Sport)...however this will be my first time...is there anything i need to do prior to going in. I will have already have my oil and filter changed as well as the walnut shell blasting procedure?

I know that i can mix 91 and 100 octane gas so that i can run Stage 1 Sport (i live in california so we have crappy gas)...however will that change my power output when running Stage 1 Drive with reg 91 gas?

Any help will be appreciated

GeorgiaTech335coupe · 08-26-2012, 02:35 PM

If you have an AT, make sure the dyno operator knows how to properly perform the dyno with the kickdown switch.

Bring tool to take off engine cover to get access for rpm connection (If dyno doesn't connect via OBD).

If using a Mustand Dyno, leave ego and high hopes at home.

Running race gas on a map that doesn't require it may or many not give you a higher hp reading than normal. It will allow that tune to run its best possible. It depends on how conservative the tune is. If it's super conservative, then it won't affect it that much (like running race gas on stock tune). If it's not conservative, it may be higher than actually seen on the road.

King mode · 08-26-2012, 04:50 PM

Add 100 octane and compare sport vs. Aggressive. At the track, my car traps 100mph on sport and 105mph on aggressive. Huge power difference.

bboy8282 · 08-27-2012, 02:05 PM

Awesome...thanks for the advice and suggestions you guys...ill be doing the dyno at EAS so im pretty sure theyve done dynos for AT bmws...down the line ill prob do more dynos as i get each mod, DCI, FMIC, DP and finally a custom tune via cobb

sickem · 08-27-2012, 07:14 PM

Quote:

Originally Posted by GeorgiaTech335coupe

If using a Mustand Dyno, leave ego and high hopes at home.

boy you ain't kidding

08-26-2012, 02:23 PM	#1
bboy8282 First Lieutenant 29 Rep 394 Posts Drives: BMW 335i Join Date: Feb 2010 Location: Pasadena, California iTrader: (1)	Pre-steps to take before dyno Looking at getting my car dyno'd to see what kind of power my car makes (stock v. Stage 1 Drive v. Stage 1 Sport)...however this will be my first time...is there anything i need to do prior to going in. I will have already have my oil and filter changed as well as the walnut shell blasting procedure? I know that i can mix 91 and 100 octane gas so that i can run Stage 1 Sport (i live in california so we have crappy gas)...however will that change my power output when running Stage 1 Drive with reg 91 gas? Any help will be appreciated
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08-26-2012, 02:35 PM	#2
GeorgiaTech335coupe Lieutenant Colonel 86 Rep 1,883 Posts Drives: Black BMW 335i coupe Join Date: Mar 2007 Location: USA iTrader: (0)	If you have an AT, make sure the dyno operator knows how to properly perform the dyno with the kickdown switch. Bring tool to take off engine cover to get access for rpm connection (If dyno doesn't connect via OBD). If using a Mustand Dyno, leave ego and high hopes at home. Running race gas on a map that doesn't require it may or many not give you a higher hp reading than normal. It will allow that tune to run its best possible. It depends on how conservative the tune is. If it's super conservative, then it won't affect it that much (like running race gas on stock tune). If it's not conservative, it may be higher than actually seen on the road. __________________ Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
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08-26-2012, 04:50 PM	#3
King mode First Lieutenant 8 Rep 374 Posts Drives: 335xi Join Date: May 2012 Location: Denver iTrader: (0)	Add 100 octane and compare sport vs. Aggressive. At the track, my car traps 100mph on sport and 105mph on aggressive. Huge power difference. __________________ 2008 335xi AT Cobb AP stage 1, drop in filter, the rest stock 13.10@106.01 w/ 1.86 60' (5,800' altitude)
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08-27-2012, 02:05 PM	#4
bboy8282 First Lieutenant 29 Rep 394 Posts Drives: BMW 335i Join Date: Feb 2010 Location: Pasadena, California iTrader: (1)	Awesome...thanks for the advice and suggestions you guys...ill be doing the dyno at EAS so im pretty sure theyve done dynos for AT bmws...down the line ill prob do more dynos as i get each mod, DCI, FMIC, DP and finally a custom tune via cobb
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