Took the APR RS5 to the drag strip (APR Stage 1 vs Stock) - 93 octane

A5/S5/RS5
#15

zcd, yeah I think 5200 or so… However, every LC video I have seen for the RS5 and any other Audi for that matter doesn’t truly launch at the set RPM… There is a bit of a delay, the rpm’s dip slightly and than it goes… I truly think the TCU is slipping the clutches or doing something as it doesn’t hit hard like it would if you were dumping a manual clutch… Tough to describe but go back and watch a few of them and you’ll see what I am saying… Granted I haven’t driven one so I could be wrong…

Saki, At work so I can’t watch the video but if the car was spinning I’ll bet that could be fixed with a little lower psi or better track prep, probably don’t need DR’s… 1.7x 60’s are very nice for an essentially stock car with just a tune… Little practice, shallow stage, and better prep, better conditions you may see 1.6x 60’s… Boom there would be the 11 second pass…

#16

it cut 1.7 60’ times bone stock too.

JHM programs launch control (JHM LAUNCH ASSIST) right into their ECU on manual cars.

To engage it, you mat the gas pedal, and RPMs hold at 5500 RPM. This is to create a threshold that is high enough that you won’t accidentally hit it…you have to be really trying to rev a car to 5500 RPM.

Once it’s there, you release the cluthc in an swift instant, and then the program takes over. You don’t launch from 5500 RPM. You launch from around 3500 or so RPM. It modultaes throttle and a bunch of things to get you going without spinning the tires all to hell. It’s pretty awesome in fact (video below).

I assume it is similar on the B8 cars. B8 S4 launch control is likely from around 2000-2500 or so. RS5 is likely from around 3500 (maybe even less).

JHM Launch Assist on my B7 S4.

https://www.youtube.com/watch?v=vgo9CiIZoZc

#17

Saki, I’ll take a look when I get home but I think I have seen it before… definely a neat setup… I wonder how the RS5 would be launching by just mashing the gas? I think I have proven that more effective than the LC on the B8 S4… Maybe if Arin goes back he can make a few non-LC passes just to see…

Sad how there are only a few replies on Arin’s AZ thread… Guess the other RS5 owners don’t care much about how the car performs…

#18

lol the early days of the RS4 were not full of performance guys either, so don’t despair. It takes time. If you posted a quarter mile timeslip for an RS4 back in the day, you would get bombarded with the usual ‘these cars aren’t made for the dragstrip’ and all of the usual b.s.

It’s an elitist dickhead thing…thinking you’re ‘above’ the dragstrip. Everyone who thinks that way, if they went, would LOVE IT. It’s like a car show…with the ability to stretch your car with no speed limit. I love going just to see the other cars. Last time there were tons of interesting cars even though it was freezing cold and pretty much empty.

As for launch control vs. regular, Arin can easily test that for us using PBOX

Arin, put an SD (not SDHC) card in the PBOX, do 3 launches using Launch control, and three launches using the ‘mash it’ technique. Then you can have a look at the launches by comparing 60 foot times on the PBOX data software. I’ll happily do it and make a comparison graph if you email me the .pbn file.

#19

Awesome info Arin, I think it’s great that you guys are throwing this thing on a track!!

#20

Great stuff APR! This sort of post is really appreciated and I’m excited to see what you can do with this beast of a car. Does this tune transfer over easily to the B8 RS4 (Avant)? More out of curiosity for the European guys. The TTS guy peruses here I believe.

I’m not sure if you saw my post in the other thread, but do you have more info on the Golf R? Or am I being casually ignored due to top secret early beta testing?!? he he

As for the hot and humid conditions in 'Bama, at least no one can ever accuse you of inflated claims and you would be in the ideal position of many of your customers beating your times :smiley: Just like 2000S4 did to JHM!

Seeing what the car does in full street trim on fuel available at the local gas station is really important IMHO. The JHM s/c time with the baby seat is the epitome of this. Drag radials belong on stripped out race cars with roll cages. Also being a GTI owner, I see the 1/4 mile list on Vortex and skip all the ones with DR’s.

Having said that, I love that 81bear, PT, jspazz have all pushed the limit on pump gas and then taken it to the next level on race fuel. It’s fun to watch 4 door Audi saloons/sedans running 11 sec times and quite exhilarating watching the guys trying to do it.

#21

I’ll need a new PBOX before I can do that. It refuses to write to the cards anymore. I’ve tried everything… just doesn’t work. : (

It’s highly likely the B8 RS4 will be the same ECU wise. We’ll just need to get our hands on it first before making that call.

Shoot me the link. I may not have seen it.

#22

Nope, you got it, thanks, Arin.

#23

Is that a spare light bulb in the trunk?

#24

Very nice, Im excite to see numbers with the new supercharger development!

At $799 for everything you get for this tune its a steal!

#25

Yeah, there was a set of bulbs and some other light junk in the trunk. :wink:

#26

I love the nerd on A5oc who is saying your track is artificially fast. He’s that monkey who got a PES kit for half price in exchange for whoring it on the forums…and now he is a PES sales rep for the UK.

So of course he tries to trash talk APR and the RS5 results. I think he’s just embarrassed that his 4.2 S5 with a $12,500 PES supercharger kit is running the same times as a BONE STOCK RS5. He has done lots of RS5 trash talking on the A5oc forum over there. This must hurt like fuck.

#27

Clearly the key to success in the Audi tuning world is going to a track while doing other chores/with junk like some light bulbs or a baby seat.

#28

^^^well before we annoint APR ‘succesful’, I’d like to see what the RS5 does with a tune+cat mod or catback mod. Picking up 1.5 tenths and 1.5 MPH is nice, but isn’t really that great (no offense Arin).

12.27 sounds awesome to me, but we can’t forget it ran 12.43 bone stock. Just because you’re born on third base, doesn’t mean you hit a triple :slight_smile:

There’s likely MUCH more in the car if you address the weaknesses in the system, and the tune should be able to take advantage of that. Hopefully APR and a few other companies do so through time.

#29

very nice Arin. but i hate you cuz you make me want an rs5 real bad

#30

True enough Saki I guess the mod has to be really good to risk the $$$ and the td1 flag and potential warranty issues

#31

wonderful to see APR really getting past the old pass off of here is a dyno sheet. I love to see the effort. It would be even better to see the RS5 in the 11s.

Arin is this live tuning something that is going to be said by other tuners. I know how valuable that is and it seems APR is just like JHM in the fact that they set the trend and others try to claim the same. I have always been in love with how APR is well ahead of the curve

#32

Great da, tune, decat, and the RS5 is in the elevens comfortably.

May not even need the decat.

#33

[quote=“My_S5_afe_Hyden,post:31,topic:3885”]
In most cases I highly doubt it. Some of the ‘big’ names still use vag-com for logging.

#34

[quote=“Arin,post:33,topic:3885”]

;D ;D

Don’t you guys have a drag strip out front of your facility?! I’m just not too sure if the smokies would appreciate you setting up trees out there :wink:

Congrats can’t wait to see more out of this!!