Revo stage 1+ VCDS log file

[xpoweruk]

logs from today 3rd gear pull from 2000 rpm to limiter.
Outside temp was around 10*c 96kpa
fuel 99ron tesco momentum (93 equivalent )
160 feet (50 metres) above sea level

revo stage 1+
revo intake
milltek valvesonic exhaust



https://www.dropbox.com/s/7oh8exqpjp...96kpa.CSV?dl=0


Just realised I missed engine speed/rpm & air mass

[xpoweruk]

https://www.dropbox.com/home?preview...%2B+100ron.CSV

Finally got it right :)

.96 bar air pressure 8.5 degrees C temperature

[-leman-]

Looks like you didn't use the "Turbo" / "Group UDS requests" mode...

Anyway, you seem to be bypassing some boost (RFP_AV) parameter which results in some 0,1 bar boost loss in the higher revs (comparing to my S5 REVO Stage 2+) and hence lower air mass. Can't say for sure what's the reason to bypass, but could be a measure to manage the knock. Your knock retard levels (based on 2 cylinders logged) seem pretty safe, but it was claimed here by some members that REVO seem to use boost bleed as a measure to fight knock (vs. other tuners tendin to keep the standard knock retard mechanism).

IATs are really good, which probably is the reason for high ignition advance (I personally see something closer to 21 deg. on mine near the redline).

Despite the high ignition advance I'm really surprised such log results in 500+ measured bhp. I may say that while my local REVO dealer claimed 470+ bhp on my Stage 2+ setup my butt dyno says such power levels are definitely not there )))

[bhvrdr]

I agree.

The log looks pretty similar to what other revo folks have posted. As has been stated, Revo uses a slightly different tuning strategy than any of the other major tuners who have had logs posted. Revo runs aggressive timing (looks like 24 degrees up top in your case) and modifies the knock control system to allow for this as they have stated it is overly aggressive in OEM form. They tend to be conservative on their boost targets though and boost bleed is common. Its a different way to make power. Your log looks "fine" as far as being similar to what other folks have posted. There is no way to know what your "real" knock would look like but likely a couple degrees higher based on your actual timing and octane.

Mike

[xpoweruk]

Cheers for the input :)

So all in it appears that all is well at least

[jran76]

I agree with the others. It's a little hard to tell exactly what's happening without turbo/grouping, but my take away is the same. Looks like most of the other Revo logs. I still don't like seeing that much bypass, but that seems to be the way Revo is going about it.

[xpoweruk]

I agree with the others. It's a little hard to tell exactly what's happening without turbo/grouping, but my take away is the same. Looks like most of the other Revo logs. I still don't like seeing that much bypass, but that seems to be the way Revo is going about it.

I was sure I used Turbo mode when I did it,but alas not.

The amount of bypass does seem excessive to me too,I guess that the only way to change that is a different tune??

[jran76]

I was sure I used Turbo mode when I did it,but alas not.

The amount of bypass does seem excessive to me too,I guess that the only way to change that is a different tune??

Like the others said above, it's really the trade-off with running the more aggressive timing. Revo has said that they feel like the timing/knock detection on the stock tune leaves a lot of room for improvement, so their tuning method is to go more aggressive with the timing and less aggressive with the knock detection/correction. The give-and-take of that is they are using bypass more as a safety mechanism.

There isn't a way to say which is better other than to say no other tuner appears to do it this way. I have seen several other tunes (APR, GIAC, EPL, Uni) all hit 21-22 degrees of timing with no bypass, but I have no doubt that with all things being equal, those other tunes are slightly less aggressive with the timing overall. I guess it just comes down to which method you prefer. I feel like Revo is leaving a little power on the table, but it's not a whole lot. I've done a couple dynos with Revo stage 1+, and APR, GIAC, and EPL on the same dyno. Revo was mostly in-line with the others.

[xpoweruk]

Good to know jran76.
I must say I am pleased with the revo tune,hopefully going to Santapod later this month for a RWYB

[xpoweruk]

I did another log today ( I ticked the box for UDS & turbo button so not sure what is going with that)

8degreesC 0.98 bar pressure

Same map with some Millers EcoMax fuel addative



this is the same map without the millers(the one I posted earlier in the thread)

[xpoweruk]

So reading the latest log I am hitting 26.6 degrees of timing in the higher revs

[jran76]

So reading the latest log I am hitting 26.6 degrees of timing in the higher revs

Yeah, that's a lot! I'm sure it's pretty strong. Something definitely has to give to run that much timing on pump gas. It would be cool to see how it did with less bypass, but there definitely isn't a lot of room left.

[cam0719]

So reading the latest log I am hitting 26.6 degrees of timing in the higher revs

You may have hit that in the first log too, but the WOT timing values stopped short at 5821 rpm (did you let off early)? However they appeared to be following a similar track.

This may have also skewed your virtual dyno in the upper RPMs (the blue line would have been higher)?

[martziniuk]

Was post 2 on 99Ron and what gear was the pull in?

[xpoweruk]

Not sure why the first run didn't log properly,I seem to be getting poor refresh rates using Turbo mode foe some reason

I only ever use 99 fuel.

I was quite surprised at the amount of timing the revo map uses,certainly explains why so much boost is bled off for safety though

[jran76]

Not sure why the first run didn't log properly,I seem to be getting poor refresh rates using Turbo mode foe some reason

The new version of VCDS does not work nearly as well as the older version in terms of logging; at least when logging 10 parameters with turbo/grouping enabled. On version 15.7.1, I was getting at least 20 lines on a 3rd gear pull. On the newer 15.7.4 version, I am only getting 3-4 lines. I'm going to try it with fewer parameters, but either way, it doesn't work nearly as well for logging. Hopefully they fix whatever they messed up as it is a definite step backwards for logging.

[xpoweruk]

Cheers for the explanation jran

[xpoweruk]

The new version of VCDS does not work nearly as well as the older version in terms of logging; at least when logging 10 parameters with turbo/grouping enabled. On version 15.7.1, I was getting at least 20 lines on a 3rd gear pull. On the newer 15.7.4 version, I am only getting 3-4 lines. I'm going to try it with fewer parameters, but either way, it doesn't work nearly as well for logging. Hopefully they fix whatever they messed up as it is a definite step backwards for logging.

I contacted Ross-Tech about this & they say nothing should of changed.

However they also pointed me to ..
http://www.ross-tech.com/vag-com/faq_4.php#4.8
http://www.ross-tech.com/vag-com/tou...on_screen.html
I think I will change the settings & see if it has the desired affect

[jran76]

I contacted Ross-Tech about this & they say nothing should of changed.

However they also pointed me to ..
http://www.ross-tech.com/vag-com/faq_4.php#4.8
http://www.ross-tech.com/vag-com/tou...on_screen.html
I think I will change the settings & see if it has the desired affect

I have not had a chance to really try any changes, but I will soon. I just know that with the only change being the upgrade from 15.7.1 to 15.7.4 it greatly effected the engine logging function for me. I have a feeling just going down to 8-9 parameters will resolve the issue, but I really like being able to log 10 parameters. I never had an issue with this before (turbo/grouping worked great with 10 parameters, and you could do 12 parameters without turbo/grouping).

[bhvrdr]

I have not had a chance to really try any changes, but I will soon. I just know that with the only change being the upgrade from 15.7.1 to 15.7.4 it greatly effected the engine logging function for me. I have a feeling just going down to 8-9 parameters will resolve the issue, but I really like being able to log 10 parameters. I never had an issue with this before (turbo/grouping worked great with 10 parameters, and you could do 12 parameters without turbo/grouping).

I've had the same issue. For what it's worth I am actually only able to log 8 parameters now without getting faults when in turbo and grouping mode.

[jran76]

I've had the same issue. For what it's worth I am actually only able to log 8 parameters now without getting faults when in turbo and grouping mode.

I'm glad it's just not just me, but yeah, that sucks....

[xpoweruk]

Ross tech would like to see like for like logs (older VCDS vs New) if PPl have them to send in to them.

[LBosh]

I think it has something to do with Windows 10. I tried to go back to VCDS 14.10 and was still unable to log all 10 parameters I had logged with this version on Windows 8.5.

[xpoweruk]

Ahh that would make sense.
Windows 10 strikes again

[jran76]

Ross tech would like to see like for like logs (older VCDS vs New) if PPl have them to send in to them.

I think it has something to do with Windows 10. I tried to go back to VCDS 14.10 and was still unable to log all 10 parameters I had logged with this version on Windows 8.5.

I'll send them some logs later today. I am still running Windows 8 on my tablet I use for logging.

[xpoweruk]

Nice one jran

[bhvrdr]

I'll send them some logs later today. I am still running Windows 8 on my tablet I use for logging.

I was running windows 10 on a MS Surface before and no issues logging 10 parameters.

mike

[jran76]

I emailed Ross-Tech with a pretty detailed description of the change, and a log file that had logging from 3 different version to show the difference with the new version. I emailed them yesterday, and haven't heard anything back. It/when they respond, I'll update this thread....

[jran76]

Also, I did double check, and I'm still running Windows 8.1 on my tablet. I have 12.x.x and 14.x.x versions on the tablet, so I'll go back to one of those and test it out when I get a chance. I don't seem to have the download for 15.7.1 or 15.7.4 on the tablet, so they must be doing something different with the install also.

[LBosh]

Also, I did double check, and I'm still running Windows 8.1 on my tablet. I have 12.x.x and 14.x.x versions on the tablet, so I'll go back to one of those and test it out when I get a chance. I don't seem to have the download for 15.7.1 or 15.7.4 on the tablet, so they must be doing something different with the install also.

Your test with older versions of the software would be very interesting. I could log 10 parameters on 14.10 and Win 8. When I upgraded to 15.7.1 and Win 10, I could no longer do that. E-mailed Ross-Tex, but they told me everything should work the same way. After that I installed 14.10 on the same Win 10 tablet, but it worked exactly like 15.7.1, so I upgraded to the latest 15.7.4.

Maybe, with the 15.7.1 they reprogrammed something inside the cable?

[xpoweruk]

I did 2 logs today revo stage 1+ 100 ron map & millers ecoplus additive again.3rd gear pull

I changed the parameters as per the Ross tech link above



Blk Int affects the protocol timing. The current default value is 55. To get the highest sample rate possible in the Measuring Blocks screen, set this to 25. Note, however, that this may cause unreliable communications with some controllers.

Char lnt also affects the protocol timing. The current default value is 1. To get the highest sample rate possible in the Measuring Blocks screen, set this to 0. Note, however, that this may cause unreliable communications with some controllers.

The results are pretty obvious if you compare them to my other logs.
Also you may be interested in the timing vs boost bleed in high revs :)

1.03 bar air pressure, 9°C outside temp

https://www.dropbox.com/s/egjrtflahu...C2016.CSV?dl=0
https://www.dropbox.com/s/lud3f5vb1y...82%29.CSV?dl=0

[xpoweruk]

Virtual dyno from one of todays logs

[jran76]

I did 2 logs today revo stage 1+ 100 ron map & millers ecoplus addative again.

I changed the parameters as per the Ross tech link above



Blk Int affects the protocol timing. The current default value is 55. To get the highest sample rate possible in the Measuring Blocks screen, set this to 25. Note, however, that this may cause unreliable communications with some controllers.

Char lnt also affects the protocol timing. The current default value is 1. To get the highest sample rate possible in the Measuring Blocks screen, set this to 0. Note, however, that this may cause unreliable communications with some controllers.

The results are pretty obvious if you compare them to my other logs.
Also you may be interested in the timing vs boost bleed in high revs :)

1.03 bar air pressure, 9°C outside temp


https://www.dropbox.com/home?preview...C03%2C2016.CSV
https://www.dropbox.com/home?preview...16+%282%29.CSV

For some reason those dropbox links are just taking me to the home screen.

[xpoweruk]

For some reason those dropbox links are just taking me to the home screen.

I've updated the original links.

https://www.dropbox.com/s/egjrtflahu...C2016.CSV?dl=0
https://www.dropbox.com/s/lud3f5vb1y...82%29.CSV?dl=0

hopefully they will work now
edit.

I logged out of dropbox & tried.They are working for me

[jran76]

I've updated the original links.

https://www.dropbox.com/s/egjrtflahu...C2016.CSV?dl=0
https://www.dropbox.com/s/lud3f5vb1y...82%29.CSV?dl=0

hopefully they will work now
edit.

I logged out of dropbox & tried.They are working for me

That worked. Thanks. Resolution definitely looks a lot better.

[xpoweruk]

I've been looking over the logs& have come to the conclusion that going over 7,000rpm is pointless due to the amount of boost that is bled of on the revo stage 1+

Has anybody got any input on the logs?
Took a snapshot from 4k to limiter

[xpoweruk]

Did a few runs with different additives.
Millers EcoMax (mixed as stated on bottle1 litre of ethanol in a full tank,3.5L ethanol in a full tank.
The fuel used was Tesco 99(UK fuel with 5% ethanol to start with)