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Old 01-16-2013, 09:03 AM   #451
sub666
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it is showing whp
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Old 01-16-2013, 11:09 AM   #452
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Quote:
Originally Posted by Phatron View Post
its fine now. probably just something on my stupid computer.

once i restarted the program twice it started working again and I have added more profiles without issue.

premature postulation on my part.
Hey can you send me your profiles.xml file in the data folder so I can try to see if I can get the profiles bug you saw with 14 profiles?
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Old 01-27-2013, 01:00 AM   #453
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First off, big thanks to bbarnhill for this awesome software!! It seems like most of you folks in this thread know this software really well so I figured I'd try and pick your brains. I installed an AFI turbo setup a month or so ago and I just want to see if this power increase looks about right to you, both runs were done on the same road and in the same direction.

Mustang dyno @ 0.95
186hp@5060 200lbft@4780
109hp@5420 113lbft@4030


https://docs.google.com/spreadsheet/...zIySk5YTUZnaEE <-stock tune datalog

https://docs.google.com/spreadsheet/...lBPUnV1UG9GTkE <- TD05 16G @8psi datalog

Thanks,
Robert

Last edited by V8Slayer; 01-27-2013 at 01:11 AM.
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Old 01-27-2013, 11:15 AM   #454
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That would be a good question for the others on this forum to chime in on. I drive a GT500 so Ive never even driven a Subaru (dont throw rocks)

I used to have an Evo (again dont throw rocks). I got invited to this forum to share VD with the rest of you and have been here 2 years now.
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Old 01-27-2013, 11:26 AM   #455
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Quote:
Originally Posted by bbarnhill View Post
That would be a good question for the others on this forum to chime in on. I drive a GT500 so Ive never even driven a Subaru (dont throw rocks)

I used to have an Evo (again dont throw rocks). I got invited to this forum to share VD with the rest of you and have been here 2 years now.
nah nah no rocks...just boulders!! haha

anyway, i tried out your program last night man, and it is fantastic! thanks so much for the development!
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Old 01-27-2013, 11:31 AM   #456
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8psi should gain you 80-100whp. Basically 10-15whp per psi is pretty standard.

What's up with the boost and afr plots? If that squiggly one is really the afr you better add like 30% fuel in boost or you're gonna melt your internals.
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Old 01-27-2013, 12:22 PM   #457
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Quote:
Originally Posted by bbarnhill View Post
I used to have an Evo (again dont throw rocks). I got invited to this forum to share VD with the rest of you and have been here 2 years now.
Haha no rock to be thrown here.

Quote:
Originally Posted by Phatron View Post
8psi should gain you 80-100whp. Basically 10-15whp per psi is pretty standard.
Thanks for chiming in Phatron. So the whp and wtq look to be about right then?


Quote:
Originally Posted by Phatron View Post
What's up with the boost and afr plots? If that squiggly one is really the afr you better add like 30% fuel in boost or you're gonna melt your internals.
The solid blue line is the afr reading from the stock car with no mods. The squiggly red line is the un smoothed boost curve from my 3rd gear pull. The lc-1 decided to go a little wonky after I filled the tank before doing the run that is why its not shown, so I think I hit the re-calibration button without knowing it(working fine earlier). Earlier in the day doing second gear pulls(with lc-1 working), I was logging 11.1 afr by redline, extra fuel was added from 3000rpm and on. I also have a meth injection kit installed that will be used once this is tuned properly(well as best as one can with a piggyback ecu) on 94 octane.
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Old 01-27-2013, 12:40 PM   #458
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ahh. you purely running wastegate boost? with no really boost controller?

if the boost was really oscillating like that (8psi, 4psi, 8psi) it would feel like a bucking bronco.

as far as the AFR's go.....i would just err on the side of rich, especially if you dont have an EGT gauge. subarus like richer AFR's. i've been running 91+meth for almost 10 years and even with 2 meth nozzles running pure methanol i still just run 11:1.
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Old 01-27-2013, 01:46 PM   #459
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You are correct Phatron, I have a vacuum line running from the turbo to the bottom nipple on the ewg. Would a boost controller help insmoothing out the boost? The boost looks a lot worse then it really is since it's not smoothed in VD,the actual logworks screenshot looks a little different.

Ok, thank you for the advice! A lot of the research I did steered me to 11.1, I will now adjust my tune to get to 10.5, will that be safe enough or would 10.1 be better? I do have an egt gauge and it will be set up hopefully today.

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Old 01-28-2013, 10:16 AM   #460
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V8Slayer ... that boost is still rocky

VictorOfHavoc ... why thanks my friend.
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Old 01-28-2013, 09:51 PM   #461
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awesome advise. This thread has been bookmarked!
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Old 01-29-2013, 08:18 PM   #462
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Strictly waste gate boost, like you have it hooked up, should be about as smooth as you can get. It's purely mechanical.

Any boost control system would be fighting like crazy to smooth that out, it would probably get worse.
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Old 01-30-2013, 11:09 AM   #463
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Quote:
Originally Posted by bbarnhill View Post
V8Slayer ... that boost is still rocky
Yeah I agree 100%. I went through some other logs and I think this that one was an anomaly(or I hope it was), though it is also the one that show the most increase in power. I did a second gear pull the same day and the boost curve looks a whole lot better. I'm going to do some third gear pull in the next few days to see what they look like. Oh and I'll be shooting you a donation tomorrow for this awesome software, without this I'd be lost right now



Quote:
Originally Posted by tachrev View Post
Strictly waste gate boost, like you have it hooked up, should be about as smooth as you can get. It's purely mechanical.

Any boost control system would be fighting like crazy to smooth that out, it would probably get worse.
Hmm that's not news I wanted to hear. I rechecked the vacuum line from the turbo to the EWG last night and discovered I put a 4mm line on my mistake, I then replaced it with a 6mm line. Would that make a difference at all? I've also done some searching and it seems that the EWG valve sometimes can flutter, is it possible that is what happened in that log?
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Old 01-30-2013, 11:17 AM   #464
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The EWG can/will flutter if you're using an EBCS. When you're using a vacuum line connected directly it should be rock solid. None of those boost curves look normal at all. The size of the line won't make it flutter like that.

Do you have a boost gauge? Does it look solid on there? Can you take a video during the pull? It seems like this could be an issue with your logging software or the boost sensor.
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Old 01-31-2013, 12:31 PM   #465
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Hey Xluben. Yes I do indeed have a boost gauge, its digital so it moves fairly quick but the numbers look pretty solid on it. We're dealing with another cold snap right now(highs of-25*c high,lows of -34*c without windchill) so pulls will be done once it warms up a little but I will for sure get a video.

I have most of my boost sources running from a vacuum block(meth boost sensor,bpv,boost gauge map sensor, aux map sensor), would that have any effect on how my map sensor sees boost? Sorry for the 20 questions I'm just trying to rule things out, the car runs great both on and off boost.
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Old 01-31-2013, 12:32 PM   #466
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V8Slayer ... glad to help to help out man. Glad its helping find your issues and providing some good info. I saw a niche in the community and a desire for something better than what we had ... and so I delivered. Make sure to like it on Facebook (http://www.facebook.com/VirtualDyno) Also changed the website to a more user friendly name www.virtualdyno.net
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Old 01-31-2013, 02:02 PM   #467
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Quote:
Originally Posted by V8Slayer View Post
Hey Xluben. Yes I do indeed have a boost gauge, its digital so it moves fairly quick but the numbers look pretty solid on it. We're dealing with another cold snap right now(highs of-25*c high,lows of -34*c without windchill) so pulls will be done once it warms up a little but I will for sure get a video.

I have most of my boost sources running from a vacuum block(meth boost sensor,bpv,boost gauge map sensor, aux map sensor), would that have any effect on how my map sensor sees boost? Sorry for the 20 questions I'm just trying to rule things out, the car runs great both on and off boost.
So you're not using the OEM MAP sensor at all? Do you have a different ECU? Where is the "vacuum block" getting it's signal from? It sounds like that's probably your issue. I highly doubt your boost is actually oscillating like that.

Quote:
Originally Posted by bbarnhill View Post
V8Slayer ... glad to help to help out man. Glad its helping find your issues and providing some good info. I saw a niche in the community and a desire for something better than what we had ... and so I delivered. Make sure to like it on Facebook (http://www.facebook.com/VirtualDyno) Also changed the website to a more user friendly name www.virtualdyno.net
Hey, that looks great!
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Old 01-31-2013, 02:42 PM   #468
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No, I'm using an aftermarket Map sensor that came with my gauge. My generation is MAF based and does not have a MAP sensor that I can datalog. I am using the OEM 16bit Jegs 96 pin ecu, and am using a piggyback ecu to adjust timing and fuel. The vacuum block(top right in photo) is getting fed from the #4 runner where it is Tee'd into the brake booster line before the check valve.

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Old 01-31-2013, 02:55 PM   #469
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Well, I'm pretty sure that's your issue, but I'm not sure on the best way to route it all with your setup.
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Old 01-31-2013, 03:08 PM   #470
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Well, I'm pretty sure that's your issue, but I'm not sure on the best way to route it all with your setup.
Ok, that's where I'll start then. I'll pick up a Tee after work, try a different place to get my boost reading and hopefully that smooths things out. I'll report back with the results and new VD plot.Thanks for the help!
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Old 02-08-2013, 04:38 PM   #471
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I did another 3rd gear pull the other day after switching my boost source and the boost still seems to be fluctuating. I've gone over my set up with a fine toothed comb and can't find anything out of the ordinary that would cause my boost to do this.

The only mechanical things that come to mind are:
1)My idle air control valve is leaking under boost. The jdm turbo models have a 1 way valve and my NA version does not since it is only supposed to see vacuum. I have ordered the 1 way valve and will do some pulls once it arrives and is installed.
2)My wastegate spring is too weak since I am running such a low psi. I will be pulling the currant spring and going the next step up +/-4.35psi -> +/-5.8psi to see if things smooth out at all.
Quote:
Originally Posted by rexblake View Post
....The EWG will open before max boost. Not fully, but cracked. I was surprised at this as well when I had a EWG and a td04. It was opening at 3k rpms....
I'm hoping that either of these will solve this problem so I am not stuck chasing my tail trying to solve this.




Last edited by V8Slayer; 02-08-2013 at 04:51 PM.
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Old 02-09-2013, 09:20 AM   #472
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Maybe go buy a cheap mechanical gauge from autozone. I think they are about 20 bucks.

Hook it up and zip tie it to the wiper or something. It should show any fluctuations. I think some electronic gauges have a "smoothing" built in to them.

Tap in to the boost feed for the map sensor you are logging.

You should feel the boost jumping around like that, those are some big changes.

Do you have a nice steady vacuum reading at idle? I'm wondering if you have a bad map.

The iac shouldn't matter, it just bypasses the throttle body, both sides of it are in the pressure side of the system, correct?
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Old 02-09-2013, 01:19 PM   #473
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Quote:
Originally Posted by V8Slayer View Post
No, I'm using an aftermarket Map sensor that came with my gauge. My generation is MAF based and does not have a MAP sensor that I can datalog. I am using the OEM 16bit Jegs 96 pin ecu, and am using a piggyback ecu to adjust timing and fuel.
what are you using to log? And is your MAP sensor data in the piggyback? IE, did you utilize the MAP sensor scaling for your particular sensor?

also, i'd go buy a bunch of clamps and clamp all your boost/vacuum lines. at the very least use some zip ties. i dont see anything on your lines.
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Old 02-12-2013, 01:32 PM   #474
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Originally Posted by tachrev View Post
Maybe go buy a cheap mechanical gauge from autozone. I think they are about 20 bucks.

Do you have a nice steady vacuum reading at idle? I'm wondering if you have a bad map.

The iac shouldn't matter, it just bypasses the throttle body, both sides of it are in the pressure side of the system, correct?
Thanks for the advice. I'll grab a cheap mechanical gauge this weekend and see what it shows. I don't feel any hesitation when the boost is fluctuating. My vacuum at idle is a rock solid -20inhg.

As for the IACV, being that I am an older subaru, the valve is attached to the actual intake manifold by the #3 intake runner. The older JDM turbo GC/BD models have the 1 way valve behind the same IACV as mine (although different pipe routing) so that is why I'm going to install it and see if that helps. If it doesn't, then I can at least cross it off my growing list of probable causes.


Quote:
Originally Posted by Phatron View Post
what are you using to log? And is your MAP sensor data in the piggyback? IE, did you utilize the MAP sensor scaling for your particular sensor?

also, i'd go buy a bunch of clamps and clamp all your boost/vacuum lines. at the very least use some zip ties. i dont see anything on your lines.
I am using 2 systems to log. First is a PP6 which lets me log very little - maf v, afr, rpm, engine temp,tps and this is also is what I am currently using to tune the cars fuel and timing.

The second system is a combination of datalogging components from Innovate Motorsports - Lc-1(AFR), SSI-4(TPS,Maf V,coolant temp,rpm), Lma-3(EGT,aux map sensor kpa, IDC, ignition timing) and the MTX-D boost gauge(http://www.rallysportdirect.com/Inno...ght-Gauge-52mm). The map sensor came with the boost gauge(shows it in the link) and does not have an option to be scaled.

Oh,that pic was taken once everything was installed and after testing for leaks. Since then everything has been clamped and/or zipped, but I will check them all again though.

Last edited by V8Slayer; 02-12-2013 at 05:42 PM. Reason: spelling :S
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Old 03-20-2013, 09:13 PM   #475
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I went to a local Mustang dyno today and logged the pulls. Here's how VD and the real dyno compares, though I guess a more accurate comparison would be to set the SAE stuff in VD and probably remove the driver weight? I just left the settings I normally would if I had done a road datalog and it's pretty close:

Today's run is the lighter blue and red. The other was from a previous run I did last year.

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