Maxwell Power EFR 7670 - Page 75

manitou · 03-19-2013, 09:55 PM

Quote:

Originally Posted by kellygnsd

I need to do a VD of my car to see how she is doing. Is VD easy to setup?

Super easy. Download the VD file, It's in excel. Then log the parameters when doing a pull. Save the log as a csv td file. Then open it with VD. You'll have to input info about your car and save the profile for your car in the custom list.

Log list is:
Time
Rpm
Throttle position

Opt parameters:
Boost
AFR

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manitou · 03-19-2013, 10:12 PM

Quote:

Originally Posted by Bariga

3d gear 19 psi pump numbers "need to lean it out a bit was tuning with ecu not reading gauge correctly"

10 psi at 3300 rpm
20 psi at 3800 rpm

EGT was at 1300 F on this pull which is low any ideas guy?

Excess fuel?

I'd start the pulls earlier 2200-2500. Looks pretty good for 19psi!

Bariga · 03-19-2013, 10:22 PM

Quote:

Originally Posted by manitou

Excess fuel?

yeah it had lots of stumble when gas was pressed,

Quote:

Originally Posted by manitou

I'd start the pulls earlier 2200-2500. Looks pretty good for 19psi!

i know, i had cars behind me on freeway 2200 rpm is like 40 mph in 3d

manitou · 03-19-2013, 10:34 PM

Quote:

Originally Posted by Bariga

yeah it had lots of stumble when gas was pressed,

i know, i had cars behind me on freeway 2200 rpm is like 40 mph in 3d

Yeah the other drivers would be like WTF the guys doing 40.....and now he's gone probably doing 100! What a crazy azz!! Lol

Phatron · 03-20-2013, 01:44 AM

Quote:

Originally Posted by manitou

Super easy. Download the VD file, It's in excel. Then log the parameters when doing a pull. Save the log as a csv td file. Then open it with VD. You'll have to input info about your car and save the profile for your car in the custom list.

You also need to open the log before importing it into vd and delete the non WOT cells or your curve will look all goofy before you stomped the gas and after you let off.

Bariga · 03-20-2013, 04:09 AM

i noticed that before, now in vipec i zoom in to 100 TP area and export that to csv.

manitou · 03-20-2013, 08:01 AM

Quote:

Originally Posted by Phatron

You also need to open the log before importing it into vd and delete the non WOT cells or your curve will look all goofy before you stomped the gas and after you let off.

Yep forgot to note that. It's not Excel based either which I thought it was.

Phatron · 03-20-2013, 12:32 PM

Airboy is the excel based road dyno.

Also, if you're utilizing fast poll in romraider you really need to disable it for dyno runs....or go through and delete all the dual rpm data points. There are a bunch of them in fast poll logs, especially on 16bit cars and they screw up teh curves also since its basically showing the rpm didnt rise over a time stamp increase.

Bariga · 03-20-2013, 12:56 PM

next thing i want is to silent the demn exhaust, what you guys thing of Q300 will i notice big difference from G200?

Or buy varex adjustible muffler "i can have vipec open the vavle when say i press over 60% TP or over 120 kpa

xluben · 03-20-2013, 01:00 PM

Quote:

Originally Posted by Phatron

Airboy is the excel based road dyno.

Also, if you're utilizing fast poll in romraider you really need to disable it for dyno runs....or go through and delete all the dual rpm data points. There are a bunch of them in fast poll logs, especially on 16bit cars and they screw up teh curves also since its basically showing the rpm didnt rise over a time stamp increase.

Yep, Airboy is Excel and VD is a stand alone program. Both work well, but I think VD is far easier to use.

Definitely turn off fast polling if you're logging to make a power plot. Not only are there duplicate data points, but there are some that even go backwards! This creates big spikes that can skew the numbers.

Also, VD is set up to automatically trim to only 100% TPS. As long as you don't go WOT more than once in a single log, then it should show you the correct plot without any manipulation.

treystoys · 03-20-2013, 01:06 PM

Quote:

Originally Posted by Bariga

next thing i want is to silent the demn exhaust, what you guys thing of Q300 will i notice big difference from G200?

Or buy varex adjustible muffler "i can have vipec open the vavle when say i press over 60% TP or over 120 kpa

I did that very swap on my car, g200 to q300, no difference at all power wise, the q300 is still a straight through exhaust, just with a little more bend in the axle pipe section, a larger canister and the rolled tip which i firmly believe is what makes it less raspy. It's still loud after a few days of use, but nowhere near the g200 levels. I love mine, especially the fact that it resembles the oe muffler.

Hope that helps some!

Trey

Phatron · 03-20-2013, 01:12 PM

^ there are differences in the plots if you take teh same log and plot it trimmed vs utrimmed. 25-50 ft*lbs difference at low rpm. at least on the log i just checked.

manitou · 03-20-2013, 01:25 PM

Quote:

Originally Posted by xluben

Yep, Airboy is Excel and VD is a stand alone program. Both work well, but I think VD is far easier to use.

Definitely turn off fast polling if you're logging to make a power plot. Not only are there duplicate data points, but there are some that even go backwards! This creates big spikes that can skew the numbers.

Also, VD is set up to automatically trim to only 100% TPS. As long as you don't go WOT more than once in a single log, then it should show you the correct plot without any manipulation.

Interesting I did not know that about the less than 100%. I just assumed that you needed to trim that out so I always did. I use the Cobb AP V2b for logging and it's very easy with VD.

Quote:

Originally Posted by Phatron

^ there are differences in the plots if you take teh same log and plot it trimmed vs utrimmed. 25-50 ft*lbs difference at low rpm. at least on the log i just checked.

Are you saying you get different readings/ plots with and without the trimming of the less than 100% TPS on VD?

I have the full logs and the trimmed logs so I'll have to check that out!

Phatron · 03-20-2013, 01:30 PM

Quote:

Originally Posted by manitou

Are you saying you get different readings/ plots with and without the trimming of the less than 100% TPS on VD?

Yes, thats what i said.

Took a log, trimmed out the non 100% throttle, saved as "trimmed"....loaded that file and the origianl into VD....plots are different.

manitou · 03-20-2013, 01:33 PM

^^ then I'll continue to trim mine before loading, Thanks!

xluben · 03-20-2013, 01:37 PM

I'll have to check that out. I wouldn't expect that. Does it read higher with or without the trimming? What happens if you don't trim it and move the little RPM sliders?

Phatron · 03-20-2013, 01:46 PM

this particular log, the trimmed data reads higher.

you can see it in the sliders too....trimmed log 3000rpm to 6500rpm, the non trimmed sliders are 800rpm to 6900rpm. its not removing the data like you think it is.

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03-20-2013, 04:09 AM	#1856
Bariga Scooby Specialist Member#: 179846 Join Date: May 2008 Chapter/Region: NWIC Location: Renton, WA Vehicle: 07 STi MPS Build EFR 7670 TS	i noticed that before, now in vipec i zoom in to 100 TP area and export that to csv.

03-20-2013, 12:32 PM	#1858
Phatron Scooby Guru Member#: 36033 Join Date: Apr 2003 Chapter/Region: SCIC Location: Tuning Lab Vehicle: CEO PhatBottiTuning 2006 STi GTX3582 + Meth	Airboy is the excel based road dyno. Also, if you're utilizing fast poll in romraider you really need to disable it for dyno runs....or go through and delete all the dual rpm data points. There are a bunch of them in fast poll logs, especially on 16bit cars and they screw up teh curves also since its basically showing the rpm didnt rise over a time stamp increase.

03-20-2013, 12:56 PM	#1859
Bariga Scooby Specialist Member#: 179846 Join Date: May 2008 Chapter/Region: NWIC Location: Renton, WA Vehicle: 07 STi MPS Build EFR 7670 TS	next thing i want is to silent the demn exhaust, what you guys thing of Q300 will i notice big difference from G200? Or buy varex adjustible muffler "i can have vipec open the vavle when say i press over 60% TP or over 120 kpa

03-20-2013, 01:12 PM	#1862
Phatron Scooby Guru Member#: 36033 Join Date: Apr 2003 Chapter/Region: SCIC Location: Tuning Lab Vehicle: CEO PhatBottiTuning 2006 STi GTX3582 + Meth	^ there are differences in the plots if you take teh same log and plot it trimmed vs utrimmed. 25-50 ft*lbs difference at low rpm. at least on the log i just checked.

03-20-2013, 01:33 PM	#1865
manitou NASIOC Supporter Member#: 193757 Join Date: Nov 2008 Chapter/Region: MWSOC Location: MI: HP Techs MPS LR2.5 560WHP Vehicle: 2006 XTI Limited OBP, Junior tuned	^^ then I'll continue to trim mine before loading, Thanks!

03-20-2013, 01:37 PM	#1866
xluben NASIOC Supporter Member#: 261612 Join Date: Oct 2010 Location: Minneapolis, MN Vehicle: 2011 WRX 5 Door NF Performance Stage 1	I'll have to check that out. I wouldn't expect that. Does it read higher with or without the trimming? What happens if you don't trim it and move the little RPM sliders?

03-20-2013, 01:46 PM	#1867
Phatron Scooby Guru Member#: 36033 Join Date: Apr 2003 Chapter/Region: SCIC Location: Tuning Lab Vehicle: CEO PhatBottiTuning 2006 STi GTX3582 + Meth	this particular log, the trimmed data reads higher. you can see it in the sliders too....trimmed log 3000rpm to 6500rpm, the non trimmed sliders are 800rpm to 6900rpm. its not removing the data like you think it is.