Viezu Tuning on Golf R....WOW!

[ido09s]

Thanks ido09 for backing us up. Agree totally.

One for example. 140 kw atw before on a dyno dynamics and 175 atw after with a Performance tune

Boost after consistent with this one at 19 psi with a peak of 20-21 (before, around 16-17)

AFRs before around 10.5 and around 11.5 after

No problems, but you know what, these three lines above have told me more than any other post/dyno graph i have ever found about Viezu and based on this i would seriously consider their tunes.

I have always wanted to see how much boost they run, 19psi is quite reasonable in these cars and i see no reason it would be detrimental to the safe, long term running of them.

An air/fuel ratio of mid 11 isnt out of the ordinary either for an after market tune and to me wouldnt be dangerous with those boost levels providing it ran sensible timing values (you will never see this on a dyno obviously, though EGT's would reveal how much timing there is) I would be very interested to see how rich/lean the car ran when the boost spiked to 21psi but given its a spike i wouldnt consider it to be extremely dangerous. (unless it went to 14:1 A/F's)

Peak power, who gives a **** as its for people with small penis's and means nothing really though it is good to see the work they did actually gained something in the top end. I would be very interested to see how much was gained in the low to mid range as thats where most of us need the extra power.

[h100vw]

I have VCDS logs of a Phase 1 Custom-Code R if you want to look.

This was the first run which has a slight spike, which was written out with a second file.

PM me an email if you would like to see them. My offer is conditional that this thread doesn't become a chip war.

If Greg or Simon request information removing, I will comply as a Moderator and software provider.

Gavin

No problems, but you know what, these three lines above have told me more than any other post/dyno graph i have ever found about Viezu and based on this i would seriously consider there tunes.

I have always wanted to see how much boost they run, 19psi is quite reasonable in these cars and i see no reason it would be detrimental to the safe, long term running of them.

An air/fuel ratio of mid 11 isnt out of the ordinary either for an after market tune and to me wouldnt be dangerous with those boost levels providing it ran sensible timing values (you will never see this on a dyno obviously, though EGT's would reveal how much timing there is) I would be very interested to see how rich/lean the car ran when the boost spiked to 21psi but given its a spike i wouldnt consider it to be extremely dangerous. (unless it went to 14:1 A/F's)

Peak power, who gives a **** as its for people with small penis's and means nothing. We lost 20rwkw with our car when i switched to E85 but gained 15mph over the quarter and when it means you now run 135mph its a big gain. That just proves how accurate dyno's can be

[San Gimignano R]

Nothing worse than a chip war and I'm not interested in that either. See a recent poll I placed which requested the same. I just wanted some graph of a tune I was. Interested in.

I would just like a decent tune for a stock car, a company than can provide reasonable warranties. Not interested in going past stage one and adding things, not at this point anyway. Look out for a PM.

[lavna]

This is just a load of crap who cares about dyno charts every dyno is different so they all read different
I have a viezu tune and no other mods
This is my dyno chart and it never lies 12.81 at heathcote park
Cheers

[Candyman]

I am interested in dyno charts, specifically AFR's and boost curves and power/torque curves. Not outright numbers.

They need to be local dyno runs too, not pulled in from overseas or rehashed from offshore tuning companies.

I've got those curves now, for my use and who I can share with.

However, it seems some can't respect the idea of a private message. When they don't get what they requested, they decide to take it public and then abuse the person that tried to offer them info (what I was able to share). I made it clear why I couldn't share the charts (which a certain user has also decided to take public)

I've offered to share new info I hope to have this weekend with those that have respected private messaging (guys, will let you know). Up to Viezu or other Viezu owners to share publicly, I don't make that decision for them. I don't work for Viezu (although, pretty impressed with what they offer)

Also, some people need to check their data sources on what any stage 1 tune returns in terms of Golf R boost and AFR levels as well, just saying ...

Finally, Viezu didn't ask me to post or not post anything, just to clear that up.

I don't mind jibing (I do it myself) but abusing private messaging and personal attack is OTT.

Make your own choice what tune you decide to use. Viezu offer the package that interests me.

I do like that Ignore function ....

[tonymy01]

This is just a load of crap who cares about dyno charts every dyno is different so they all read different

Agreed they all read different, but before and after,afr, curve shape are all important and won't matter what dyno they are done on, not absolutes as Candyman says.

[Tim]

The average dyno print outs AFR is generally quite inaccurate as well unless they are taking the reading from OBD.

[ido09s]

How do you come to that conclusion Tim?

Are you saying the probe up the tail pipe has no idea whats happening? but the OBD does......

[Tim]

How do you come to that conclusion Tim?

Are you saying the probe up the tail pipe has no idea whats happening? but the OBD does......

I come to that conclusion by logging data on an actual car using the actual probe that the ECU reads from. Ive seen some tailpipe probes that are wildly inaccurate compared to the target & actual AFRs. Just have a look at some of the results from the recent Sydney dyno day.

There can be other factors as well. Cant back it up with specific experiences but I have a suspicion that the cars with flapper controlled exhaust paths can play havoc with some of the readings too. Especially if a dyno operator shoves the probe up the wrong tip.

Are you suggesting that in your experience the probes are faultless?

[ido09s]

I wont say faultless as you would need to be replacing the probe at ridiculous intervals and they are way to expensive to do that, but provided the operator knows what he is doing then the probe should read fine. I cant recall how often we changed our probes but the cars we tuned were normally track cars running 25+psi of boost and making 400rwkw+. If the probe was that innacurate the engines wouldnt last as long as they did.

You are right, flapper valves do play games, as do twin tail pipes, but provided you know its there you can work around it. Your best be is normally the dump pipe but thats not always excessible. If we had cars that were constantly being raced and tweaked we would get bungs welded into the exhaust and screw the sensor in as close to the motor as we could get. Thats pretty extreme though and not something you would expect everyone to do. We had our dump pipe manufacturer provide 2 versions of dump pipes, one with the screw fitting and one without. It was something like $15 more to get the fittings welded on but did make it easier