Author Topic: Dyno plots for stock cars  (Read 10208 times)

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Offline Airboy

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Dyno plots for stock cars
« on: November 12, 2010, 06:17:38 PM »
June 2018 Update
2018 STI running Shell 91.  Did three runs and had three different plots.  This is the "middle" one.  Basically same as the 2015+ STI's dyno'd before.  In 2015 the factory tune became more more aggressive in terms of using more ignition advance, which translated to slightly higher baseline numbers, if the Octane was sufficient.



For comparison, a collection of 2008-2013 STi stock baselines.


Here is a few charts for stock cars.
"ATMC1" weather correction is applied as indicated by the "ATMC1" on the top left corner of the plots.
2015 WRX running Shell91


2015 STi
Torque hump at 4300rpm is gone


2nd sample running PetroCan 94. ECU happier with the octane


2007 STi with K&N SRI, Borla CBE, Husky94.  Data collected with summer tires.



2009 STi running on Husky 94.  Same sort of wavy torque curve as the 2009 WRX


2006 WRX on 91 Octane


09 WRX 265 on 91 Octane
Notes: Dyno fanning has improved since the data was collected which lower intake and coolant temps, both of which affect power output.


Another 09WRX265, this one ran on Husky94 and didn't knock near 4k rpm, even with the ridiculous 14:1 AFR.  Had 16" winter wheels/tires


2008 LGT running 91 Octane (previously mis-labeled as 2005)


2005 Forester XT Auto, 91 Octane


2006 STi with HKS CBE.  Everything else is stock and running 91 octane.


Something from the Nissan world...2006 Infiniti G35 6MT on 91 octane

 
Another Infiniti. This time a 2009 G37 with Stillen intake.


2009 BMW 335i Steptronic (slushbox) on 91 octane


2009 EvoX MR not quite stock (UICP, catted midpipe, aFe intake, HKS CBE), running Husky 94


2010 Audi S4

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Offline bugeyesubie

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Re: Dyno plots for stock cars
« Reply #1 on: November 12, 2010, 08:09:37 PM »
nice! i would like get mine on there, plus maybe finish my tune :-[
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Offline T-Dubbs

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Re: Dyno plots for stock cars
« Reply #2 on: November 13, 2010, 01:18:34 PM »
hey sunny, if you still wanna dyno the 2011 wrx, or even my car, shoot me a txt!

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #3 on: November 13, 2010, 08:27:20 PM »
Honda power!  ;D

CivicSi by airboy123, on Flickr

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Offline Dano

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Re: Dyno plots for stock cars
« Reply #4 on: November 15, 2010, 10:38:01 AM »
Jeez now I really want to get my prelude on the dyno. I bet with my 2.2 I will just about double that cars plot!
'93 Prelude SI H23VTEC 11.6:1 M2B4, 12.93 @ 108.21 MPH.
'02 Subaru WRX HKS, Invidia, Volk CE-28N, lots of Sti parts. Great winter beater.
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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #5 on: November 30, 2010, 09:44:39 PM »
Added data from 2005 WRX in first post

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Offline mudferret

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Re: Dyno plots for stock cars
« Reply #6 on: December 16, 2010, 09:33:25 AM »
Sunny,  I notice that temp and pressure is listed on some graphs, does this indicate corrected data, or is it simply an FYI?

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #7 on: December 16, 2010, 10:41:21 AM »
Sunny,  I notice that temp and pressure is listed on some graphs, does this indicate corrected data, or is it simply an FYI?

Just extra info. No corrections applied to those plots.  I may end up applying one of the correction equations built into the dyno computer that takes input from the weather station (temperature, humidity, barometric pressure) as the end result is closer to the road dyno calculations.  Whatever the case, if there is a correction applied, I'll indicate as much on the chart.

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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #8 on: December 30, 2010, 05:36:01 PM »
First post edited with weather corrected results.

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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #9 on: January 03, 2011, 06:47:30 PM »
First post updated with 2006 WRX data.

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Offline Munky

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Re: Dyno plots for stock cars
« Reply #10 on: January 04, 2011, 12:03:46 AM »
Wow. Glad I loaded a Stg 1 map.  One day I'll come for a visit.

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #11 on: January 07, 2011, 10:18:26 AM »
1st post updated with 2009 STi data

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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #12 on: January 28, 2011, 09:04:12 PM »
Bump for data from a 2009 G37.

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Offline Perfect Dark

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Re: Dyno plots for stock cars
« Reply #13 on: January 28, 2011, 11:22:57 PM »
Wow those are impressive numbers on that G37.

Offline jhtopilko

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Re: Dyno plots for stock cars
« Reply #14 on: February 20, 2011, 10:02:58 PM »
why the dip at 3800rpm for 2.5 subaru?

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #15 on: February 20, 2011, 11:21:03 PM »
why the dip at 3800rpm for 2.5 subaru?

Not sure which one you are referring to, as all the Subarus above have 2.5L engines ;)

4000rpm is roughly the transition point from Closed Loop fueling to Open Loop fueling and also the common point where detonation occurs so the ECU pulls timing, leading to drop in torque/power.

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Offline lophilip

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Re: Dyno plots for stock cars
« Reply #16 on: February 22, 2011, 08:51:32 AM »
First post updated with 2006 WRX data.

would the 2006 WRX have a similar plot as the 2002 wrx (wrx with 2L engines)?

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #17 on: February 22, 2011, 09:06:14 AM »
would the 2006 WRX have a similar plot as the 2002 wrx (wrx with 2L engines)?

The earlier WRX doesn't have the same fueling delays so the torque curve is smoother.  An example of a 2L wrx is here:
http://www.westernsubaruclub.com/smf/index.php?topic=19610.0

Note the comment about the glitch in the dyno computer readout.

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Offline jhtopilko

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Re: Dyno plots for stock cars
« Reply #18 on: February 25, 2011, 03:28:09 PM »
Not sure which one you are referring to, as all the Subarus above have 2.5L engines ;)

4000rpm is roughly the transition point from Closed Loop fueling to Open Loop fueling and also the common point where detonation occurs so the ECU pulls timing, leading to drop in torque/power.

Thanks, that answers the question.

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #19 on: March 20, 2011, 02:44:53 PM »
07 STi results added to 1st post.

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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #20 on: May 12, 2011, 06:17:49 PM »
2009 BMW 335i results added to 1st post

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Offline mudferret

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Re: Dyno plots for stock cars
« Reply #21 on: May 12, 2011, 06:19:47 PM »
Wow, nice numbers on your 335 (assuming it's yours?).  Now you tune it  >:D

Offline Airboy

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Re: Dyno plots for stock cars
« Reply #22 on: July 08, 2011, 12:45:01 AM »
Bump for update in 1st post (2009 EvoX MR)

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Offline Airboy

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Re: Dyno plots for stock cars
« Reply #23 on: May 01, 2014, 08:54:40 PM »
Bump for 2015 STi baseline.

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Offline goldrush

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Re: Dyno plots for stock cars
« Reply #24 on: May 01, 2014, 09:20:23 PM »
Whats with the "winter tire" and "summer tire" notes???