APR ECU/TCU tune review…

They did 11.7 with a 1500 DA on a different night a week prior.

Yea, it may work just fine on my car so we’ll see how it goes tomorrow. I’ll try to capture some in car video like primetime did. Can’t go to milan next Wednesday because I have class… I would love to if I was free though. This weekend is my last shot in some decent weather, won’t have time to go out again until the summer.

Not making any excuses but this will be my 9th or 10th attempt at the 1/4 mile… I will be relying on that 5k launch control for every pass this friday lol… Smash and go didn’t work all that well for me last time out and I guess it won’t work now that I have launch control from what primetime was saying earlier

I take it back, I found my post on AZ. DA was around 400+ that night. Not 900.

so Arin said 2800 feet but it was 400? or 900? I’m lost.

OK, found Arin’s post that I might have been confusing with the 11.57x. Again, they aren’t being very transparent about this all. But from everyone getting the tune, doesn’t look like they need to be.

http://www.audizine.com/forum/showthread.php/650864-APR-Presents-a-Free-Stage-1-amp-2-Update-for-the-B8-5-S4-S5-3-0-TFSI!?p=10752693&viewfull=1#post10752693

http://www.audizine.com/forum/showthread.php/650864-APR-Presents-a-Free-Stage-1-amp-2-Update-for-the-B8-5-S4-S5-3-0-TFSI!?p=10748197&viewfull=1#post10748197

exactly

they lied about the ‘succes’ of the beta car (the beta car posted videos here that are anything but successful) so I wouldn’t expect them to be too transparent.

It’s almost like they had a deadline to get this tune out by and they shoved the release out before finishing it or before getting the testing complete. But guys can’t wait to line up and buy, so as you say, maybe they don’t need to.

Yeah, their deadline was they opened their mouth too soon, and people were all over their ass to release it. They knew well ahead of time there were still some issues to work out. I think they went into it hoping it was just a problem with 2010 cars. Either way, they put themselves in a bad spot by both saying it would be ready by SoWo, and also advertising the 3-position LC. That’s what you usually get when trying to balance the wishes of engineering and marketing.

Sean is saying it very possibly may be a simple issue related to how the ECU/TCU interact at the rev limit/shift points, but I don’t fully understand why they wouldn’t work that out first if it is so simple. He also played it off earlier in the AZ thread like their 2010 was just fine, so… Regardless, I am sure they will get it worked out at some point.

Most of the people lined up to buy this are B8.5 owners, and to a certain extent it’s probably fine with them. They get an extra 800 RPM’s that were missing on their cars, and by all accounts a good working updated ECU tune. That’s probably enough to cloud their judgement on any other potential shortcomings. For anyone with a B8, it’s definitely worth waiting. Sean has all but said there will be another release in a few weeks.

Time to call CV

http://www.goapr.com/news/wp-content/uploads/2015/05/b85-93-timeslips.jpg
Timeslips that were posted by Arin on AZ earlier today. Analysis anyone…? :wink:

Good to see that. Curious why they aren’t showing the really fast time?

I believe they also spent a good amount of time vetting the tune on a B8.5, as evidenced by the one they bought what seemed to be 6 months ago. It makes sense that the 2010 could have issues, especially with the LC, given that it didn’t come from the factory with that feature. I’m no hardware/software guy, but I’m sure it’s pretty nuanced.

APR is essentially relying on their customers to vet the tune out…which in this case seems OK with me. I won’t buy it till I see some results/miles, but others are so I’ll wait to see. Ron has been driving it around for a while now, with constant updates and support, and everything points to it being great on the street. Obviously, the claim that the DSG tune makes the car faster has yet to be shown in an objective manner. They are now really relying on their customers to set the performance benchmarks. There are quite a few people with a lot of mods on their cars getting this, issue I guess is the weather getting worse. I’d say we’ll actually find out in the fall if they can dethrone GIAC. That of course assumes GIAC is sitting there quietly doing nothing lol

sure.

the TCU is worthless.

That’s my short analysis.

The long version is that it added nothing to the 60’ so the launch control is worthless (as Primetime has also showed).

In the first 1/8 mile the TCU added zero MPH of trap speed and pretty much zero ET help. That’s significant because that is after the launch, the 1-2 shift, the 2-3 shift, and if I’m not mistaken, the 3-4 shift (they trapped 89 mph at the 1/8th).

All in all that car picked up barely anything, and it was basically a gain of 1 mph in the second half of the track…aka nothing to do with the transmission since it’s locked in 1 gear for the whole section (it’s not getting out of 4th on 93 octane as it is 114 trap speed).

http://www.goapr.com/news/wp-content/uploads/2015/05/b85-93-timeslips.jpg

maybe so we don’t see the date and can’t verify (or refute) the ‘Hot Alabama Summer’ comment.

Thought this was kind of cool, if you recall, Jim and myself made a thread to show how short shifting was affecting 1/4 mile times on the B8.5…we went through a lot of dyno’s and assumptions, but our predictions weren’t off that much (assumed race gas with higher HP)

Here’s the thread: http://audirevolution.net/forum/index.php?topic=2763.0

https://farm4.staticflickr.com/3836/14985650610_0edc49a397_b.jpg

We had a delta of .245 sec and 1.5 mph. On pump the actual delta was .115 sec and 1.53 MPH.

Not too bad…definitely nothing like APR’s marketing material would lead you to think

[quote]The APR TCU equipped vehicle continued to gain in speed over the stock setup thanks to higher shift points, quicker shifts, and less torque intervention as illustrated in the graphs. 0-120 MPH was reduced by .75 second over the stock TCU and .97 seconds over the stock TCU exhibiting the “short shift” issue!
[/quote]
http://www.goapr.com/includes/img/products/dyno/30tfsi_b8_s4s5/30tfsi_b8_s4_dsg_acceleration.png

This is pretty interesting analysis actually. We’ll have to see if any other customers see better performance deltas…but I think you are right, the gains to be had are probably mostly from the ECU tune revision. I don’t think this TCU software is showing it’s value being priced at $1,000. I need a new HD TV and 1k can buy a lot of wall real estate.

With all that has happened at APR recently, they really couldn’t afford a bungled release like this. But I can’t say I’m surprised at this point.

Props to Prime for all of his testing.

The TCU is nice for raising the rev limit on the 2013-2016 cars. That’s it. Not worth $1000 that’s for sure.
The launch control = worthless…smash and go on 2010 or stock launch control on 2011+ works just fine.
The quicker shifting = worthless.
Getting rid of the safety shift hangs and the early upshift is nice for max performance but I don’t imagine Audi put them in there for no reason. It’s also not really an epidemic. Guys have shown how to avoid them.

DSG is already amazing. Trying to improve on it is foolhardy I say. If you have a 2010-2012 DSG, don’t bother with any TCU. If you have a 2013-2016 get GIAC tune/pulley/TCU. If you have a 2013-2016 and are already APR tuned, only then should you consider that TCU file, but at $1000 I’d wait for competition to bring that price down. I’d seriously consider switching to GIAC instead. They figured this out 2 yrs ago, and their videos don’t look like primetime’s.

couple small points to add about LC vs non. went to island 2 weeks ago with a buddy who has a 2014 S5. we both have REVO 1+ he has the DSG tune i do not.
we ran about 8 runs both on 93 oct. and after reviewing LC vs non LC 60’ times were almost identical. even with the raised RPM that the REvo DSG tune adds. all the runs with were within a few hundredths of a second. launch control is very amusing but as has said here before no real benefit over smash and go

how about ‘Primetime Method’ instead of smash and go?

not sure if his method works with cars with LC. maybe i am wrong. i keep my left foot on the brake and right on the gas. light turns i slip of the brake and mash the gas. if that is wrong then it’s and even worse case for LC

It works even if you have LC just hold the brake lightly let go and floor it at the same time.