the cooling will ensure you’re faster for longer and may make you a hair better all else being equal in cool conditions pre-heatsoak
this summer has been weird. It gets down to 65 every night whereas summers here are usually MUCH hotter. So if you catch a cool day where it’s a high of 70, the nighttime low can be as low as 60. That will help.
2500-3000 feet of DA is indeed a big difference. For perspective, if you went 13.0 @ 106 on 93 in a 14 DSG with short shifts and 6200 RPM redline in 2500 feet, when go back in 0 feet of density, you’ll run 12.65-12.70 @ 109-109.5 or so. Race gas a bit better. I don’t know about 12.2-12.4 without getting those back to 7000 RPM and stopping the 5700 RPM short shift from happening.
That is correct. 2012 B8. No shifting issues for the most part. Car consistently shifts at 7000 all the time.
Last time I was at the track, and was getting consistent 1-2 hangups when I did NOT use LC (and it revved to 7200). Ron speculated that it could be wheel spin, and that seems to make sense based on what we saw in the logs. When I used LC, it shifted perfectly every time. I would rather not use it, but the 1-2 hangup takes about 0.2-0.4 seconds off my time. The weird thing is, last time I went, this did not happen, so not exactly sure what is going on. I’m going to play with tire pressures if it happens this next time.
BUT there are Stage 2 GIAC cars WITH the DSG tune that are running 13.5’s and putting out stock HP. Blows up that theory since the redline is higher with the GIAC DSG tune, and the power still has not changed at all in many cases.
how does it blow up the theory? Did a stock car run the same time the same night? Did that guy run his car stock first in the same conditions? Lots of these angry ‘tune didn’t take’ arguments are based on some guy going to a dragstrip at 1000 feet of elevation in 86 degree humid summer heat, and wondering why his car is slower than primetime who is running race gas in temperatures that would freeze the snot in your nose. So unless there’s sufficient data there, it’s tough to say anything. You said ‘cars’ are running 13.5. Care to share them and all the data around them?
it’s not a theory…it’s simple fact. If you have a supercharger that is paired to your engine crank, higher engine RPMs = more supercharger RPMs = more air to the motor = more power (as long as the blower is reasonably efficient at those RPMs and the fuelling is there to support it). Since we know this to be true on the B8 S4, the higher RPM limit definitely helps. No theory. Fact. Not sure on GIAC as I haven’t seen any logs, but the APR cars are moving the CFM thanks to the pulley and the ECU tune keeping the boost bypass closed. No theory. Fact.
If they’re having other troubles with the ignition timing maps, that’s another story. But again, lets get the context for these ‘GIAC stage 2 cars with TCU’ that are running 13.5 before anything.
There are quite a few people who ran the GIAC stg 2 2014’s at the track and got awful results. I’d say there are maybe 3-4 people in that 2014 AZ thread who ran about 13 seconds. But like you said, tough to benchmark performance in such awful conditions, probably with noob drivers. My performance was also bad, and I have an intake, lightweight rotors/bbk and lighter wheels/tires than stock.
But GIAC seems to be a lot more quiet through all of this, clearly they know there is a problem, as evidenced by their “V2” file not being available for 2014’s.
Looking forward to Jran going to the drag strip with one of the 2014 GIAC stg 2 cars, should produce some useful data.
FWIW, still not heard from REVO despite asking. Sitting here with my Aquamist water/meth and Dremel tool to punch hole in my head, err, I meant hood. Need the third part of the puzzle. ;D
Sky, that’s just a matter of them getting their hands on the various ecu part #'s I would bet…
If there is any differences besides the shift points that is causing the poor results it’s timing related, either advance, retard or both or something very related… Not sure that’s the problem I want revo solving… JMO…
What I want to know or see is if Revo will sell just the dsg tune w/o their engine tune… So say you have the apr tune on a 13+ model what’s timing and boost look like at 6300+ with the revo dsg tune? W/O a dsg tune not sure how APR tuned for those R’s on the current tune that is out? Did they just model it after the older cars? Did they have a way to defeat the early shift when they put the tune out?
Ron, they’ve had my numbers for a couple of weeks now. Called Jeff on Wed. Left a voice mail, no response. Called this afternoon, couldn’t even get an operator to answer? Rather disheartening.
Say what you want about vendorzine but at least they are trying to figure out what the issue is with 2014’s. Yeah that post may be laughable but there other good ones in that thread.
Curious on who “they” are? Because other than Arin no one can help with a potential resolution… Where’s Austin? There are some good points in the thread but not many facts really…
Notice the date when I started this post, we’ve been talking about the 14’s struggling over here on our little site for a lot longer than anyone on vendorzine but I don’t own one so I’m losing interest… Curious as to what you think the issue(s) are?
I agree but there are people trying to prove that there is a problem same as you. No idea why Austin doesn’t post there but he seems to only post when people are looking for simple and non descriptive answers. Anything specific and he seems to be a no show.
As far as the issues go I just assume something different with the ECU’s on the 14’s that allows the tune to take but then somehow negates it when it see’s certain parameters.
I am not a tuner by any means (just an enthusiast) but I am in this game as I have 2014 6MT GIAC stage 2. I have no quantifiable data that my car isn’t as fast as it should be because I have yet to take it to a track but I plan to in the upcoming weeks.
There are people who own 14 cars who can’t figure out why they’re not fast as the 2010-13 guys (and they are literally doing nothing to figure out what’s wrong)
There are then a few people who have seized this opportunity to attack APR (swankperfartcatcher, saxon, 00 s4 2.7T etc) to promote their anti-APR agenda (and have done literally nothing to figure out what’s wrong)
There are then a bunch of confused people on the sidelines who are sort of encouraging mayhem by saying everyone with a tuned 14 should sue…or should get a refund (and they have done literally nothing to figure out what’s wrong)
THen there’s the silent watchers.
NOBODY is making progress to finding an issue, or solving an issue.
Primetime on the other hand saw a problem months ago…sought logs from a few guys…we on this site discussed those logs and found some simple things causing underperformance (that APR and GIAC are now tackling)
lower rev limiter on DSG guys (self explanatory)
short shift tendency on DSG guys (self explanatory)
ignition timing advance parameters appear cut off at teh knees by the ECU, despite the request in the file (this is the big one)
So we’ve figured out the problems ages ago, and now the tuners (who have gone quiet) are working on it.
Audizoo? hahaha they’ve accomplished fuck all unless it was copied/pasted from here.
I am not sure what you would have them do? And of course you need to muddle through the bullshit to see that people are trying to get answers. Not everyone who buys these cars and gets them tuned has the time, knowledge or want to log them, dyno them and take them to the track if they suspect there is a problem. They just want them to work as advertised.
I know you used to be on audizine because I remember your SN from by B6/B7 days so its not like you never spent anytime there and you know it is by far and away the most active Audi forum good and bad. With that you will get all sorts of users and vendors.
Hell I imagine without audizine this place would have a lot less to talk about, am I right?
Well decide what you’re talking about first. You said the az threads on this subject have merit. We disagreed . Now you’re saying I have to admit there’s merit to the site because it’s so big?
Quantity does not produce quality. Show me anyone on audizine (who isn’t a member here) who has addressed those 3 facts.
As far as me being a past az member again… Not sure what that has to do with anything. Are you changing tack again? You probably used to own a different car at some point. Does that define you forever or are you allowed to evolve and move on to something better?
