More Stage 2 Dyno Results: 2014 GIAC V1 and V2, 2014 Revo, 2012 APR

B8 S4
#1

We had four stage 2 cars get together for a dyno today. Testing was done on a Mustang AWD at PRT Performance in Lewisville, TX. First, let me say, a dyno is a tool, and a very imperfect one if not used correctly. In general, I don’t put a lot of weight into it unless it is the same car, same dyno, and there is a good baseline. In this case, we don’t have all that, so take it for what you want. I think there are a few things you can take from this, but at the end of the day, it was four different cars that were all slightly different.

Today was the coolest day we have had in DFW in about 6 months. 60 degrees, 82% humidity, and 30.1 barometer. DA was around 1200. Results shown are corrected numbers. All four cars made 3 passes. Highest is shown. First two runs were pretty close, and the last run on all four cars dropped 5-10 AWHP (none of the cars had coolant systems). All cars on 93 octane gas and tunes.

Milk242: 2014 S4 DSG, GIAC V1 stage 2, AWE pulley, Eurocode intake, GIAC DSG tune
308 AWHP, 315 AWTQ
Timing was really low. Topped out at 11 degrees with 2-3 degrees being pulled at higher RPM’s.

http://i570.photobucket.com/albums/ss146/jran76/File-11-10-2014-01-36-41-page-4_zpse0b5b2e5.jpg

kappax12: 2014 S5 DSG, GIAC V2 stage 2, AWE pulley, Roc-Euro intake
358 AWHP, 330 AWTQ
Timing was up to 17-18 degrees, but was pulling 5-6 degrees up top.

http://i570.photobucket.com/albums/ss146/jran76/File-11-10-2014-01-36-41-page-2_zps5dfac857.jpg

Spawn350: 2014 S4 DSG, Revo stage 2, AWE pulley, Eurocode intake, Revo DSG tune
358 AWHP, 345 AWTQ
Timing was high at 21-22 degrees max, and it was not pulling ANY timing on any runs (not sure why it was not making more power).
http://i570.photobucket.com/albums/ss146/jran76/File-11-10-2014-01-36-41-page-1_zps390384f3.jpg

jran76: 2012 S4 DSG, APR stage 2, APR pulley, CTS intake, AWE exhaust (my exhaust has a blown center muffler right now that may be restricting flow a little).
349 AWHP, 335 AWTQ
Timing was up to 17-18 degrees, with 2-3 degrees being pulled.

http://i570.photobucket.com/albums/ss146/jran76/File-11-10-2014-01-36-41-page-3_zps8c6ba142.jpg

Conclusions:
**GIAC V1 on the 2014 is a joke
**GIAC V2 is a big improvement
**Revo on the 2014 has the highest timing values, and none being pulled (aggressive for sure, unsafe, I don’t know…)
**My APR car is a little low, and my times at the strip bare this out too. The blown AWE exhaust is not helping. I have a new muffler on the was from AWE and it will be installed next week. I also have an AMS cooling kit that will go on soon, with a follow up dyno.
**The Revo DSG tune allows the car to avoid the kick down switch altogether, stock and GIAC do not.

#2

This should help guys looking for more data. I just removed the dyno sheets to make the results easier to compare

#3

why did the GIAC V1 car fail to go past 6250 RPM? The others all went to 6800 RPM.

#4

The GIAC V1 car was the only 2014 without a DSG tune. As we’ve seen (and we can see from the other graphs) that probably contributes to 15HP of the drop. It’s still another 40HP lower than the rest of the cars.

#5

time for an edit then…

#6

Good stuff bud! Revo looks good but that’s the extra timing doing it’s thing, no pull scares me especially on the street… Also, pretty high values for pump… GIAC graphs don’t look very smooth/good…

I’m begining to wonder about that S5 dude who claimed 11.8x on pump…

#7

Primetime, I planned on doing some logging today but unable. Will get some, hopefully, this week. Will send ASAP.
Thanks.

#8

Ed, do some with timing and the 6 timing retard fields… Get the car warm and if possible 4th gear but on the street more likely through 3rd…

#9

D’oh… That DSG tune should have been listed on kappax12. I can’t edit, but I’ll post a little later with a few more details.

#10

I got a chance to go through the logs in a little more detail. Here are some observations:

*The GIAC V2 car make a little more boost than Revo or APR. Up to 1 PSI more in some cases. The GIAC V2 car topped out at just over 16 PSI. The Revo and APR cars topped out at right at 15 PSI. Some of that is the AWE pulley being slightly smaller, but the Revo car has the AWE pulley too. So, the rest would be attributed to tuning or other hardware differences. The GIAC V2 car has the Roc-Euro intake which definitely helps over the Eurocode intake on the Revo car.

*As mentioned, the Revo car has a lot more timing. It actually topped out at 22.85 degrees which is a lot even on good 93 octane. Again, there was no timing being pulled due to knock where every log I have seen has some timing being pulled up top. Very interesting. The one thing Revo did do instead was bleed off boost at higher RPM’s. On the first run when intake temps were pretty low (60’s C) it was pretty minimal, but as temps went up on subsequent runs (up to upper 70’s C) they bled off up to 5% still with no timing being pulled. I have seen this in some other Revo logs, and it looks like they rely more on bypassing boost versus using timing pull. This would explain why it is making similar power to the other tunes with so much more absolute timing. I am not a tuner, so I can’t comment on the validity of this type of approach. It seems less safe, but there were no indications that there were any issues on the Revo car.

*The Roc-Euro and CTS intake show a little more Air Mass than the two cars with the Eurocode intakes. Up to 75 kg/h more. Roc-Euro and CTS get up to 1325 max where the Eurocode tops out at around 1250. This is pretty much the limit of what I have seen with the stock air box in this environment (my stock air box with APR intake tube and AWE filter showed the same).