New Q5/SQ5 Quarter-Mile Record 11.95 @ 113.61 (EPL)

**colby7** · 10-06-2016 11:07 AM

Last night I had a chance to get out to Sacramento Raceway and run a few passes in some terrific October DAs (+300). When I got there the place was packed because it was Corvette night. When I pulled into line, I randomly ran into the guys from JHM Motorsports who were there to run some of their shop cars. We had 30 minutes to kill before we could even do a dial-in run so we chopped it up. Sup fellas! I got to the strip with ¼ tank of gas and 41 PSI in my tires.

When I finally did my dial in, I ran an 11.999 @ 113.64. My first time under 12 which was great! However it could have been better because I had a fuel shortage. On the second pass I ran a 12.005 @ 114.11. A faster trap speed, but slower ET due again to a fuel shortage I’ll get into in a second.

The record pass was right before they closed at 9:30pm. The DA was right around +300. Because of the fuel shortage issues at the top of the RPM band, I decided to manually shift earlier, around 6500 in 3rd and 4th, and it ran a lot better. Not perfectly, but better than the first two runs. The result was the fastest ET and the slowest trap speed 11.950 @ 113.61 of the night. I took an in cabin video and posted it to YouTube (below). I know the slip is hard to read, so here are the splits:

60ft: 1.772
330ft: 4.986
660ft: 7.660
1/8 mph: 92.05
1000ft: 9.976

The fuel shortage issue is the same one the E85-blend guys on the S4 board are facing. E85 requires 50% more fuel volume compared to normal gas because it isn’t as efficient. The higher the RPM and gear, the higher the fuel requirement. Above 6500 RPM I can feel the car “top out”, and basically cruise instead of accelerate. The great news is the S4 guys have found a solution in the form of an inline booster which increases the fuel volume. This is fantastic because it will allow me to shift between 6900-7200, and run more E85, and less crappy California 91. The EPL tune is ready to provide the power; I just need to upgrade my hardware to allow it to do its thing.

In addition to the 11.95, I also ran a 3.83 0-60 (VBox timed). I took a picture of the VBox app results since it had some other interesting numbers.

Special thanks to Tony and Chris at EPL for working with me on the tune. We’re going to start working on more stuff for you guys, so stay tuned for even faster times.

Happy boost season!

**SQive** · 10-06-2016 11:26 AM

Impressive. . .most impressive.

**rusq5** · 10-06-2016 11:36 AM

Wow. Great job Colby!

Tony and Chris are really showing some amazing stuff with that tune.

How many vette owners did you smoke? Hah

**cmoore86** · 10-06-2016 11:36 AM

Nice work! I am just on stage 1 with EPL for a few days now. Nice to see how far this can go when pushed!

**ntsantos** · 10-06-2016 11:53 AM

Nice work. EPL is definitely making power.

I hope to join the 11 sec "heavy weight" club soon.

Sent from my SAMSUNG-SM-N915A using Tapatalk

**colby7** · 10-06-2016 12:02 PM

Yeah thanks guys this thing pulls hard off the line. Some of my launches are a full 1.0 G-force of push back into my seat, as recorded by the VBox.

nsantos - we're definitely the heavy weight club. It's the equivalent of the S4 guys packing their cars full of their buddies, and running 11s. Haha!

**BlackSVT** · 10-06-2016 12:47 PM

Congrats Colby! You've been knocking on the door for a while now. Nice to see you break through

**rusq5** · 10-06-2016 01:36 PM

Originally Posted by ntsantos

Nice work. EPL is definitely making power.

I hope to join the 11 sec "heavy weight" club soon.

Sent from my SAMSUNG-SM-N915A using Tapatalk

Same here.

Time to start a norcal group for fast q5s.

**Mops@Nemesis** · 10-06-2016 01:38 PM

Those Milltek pipes did wonders!!

Congrats Colby

**colby7** · 10-06-2016 01:49 PM

Originally Posted by Mops@SupremePower

Those Milltek pipes did wonders!!

Congrats Colby

Did you hear those things growl?! That's from inside the car with the windows up. Nasty!

**colby7** · 10-06-2016 01:56 PM

Originally Posted by BlackSVT

Congrats Colby! You've been knocking on the door for a while now. Nice to see you break through

Thanks man! Yeah I hooked up with EPL in April. I went to the track for the first time in June and ran a 12.45. Over the next 3-4 months we've worked on the tune, and the times have dropped consistently since then: 12.45, 12.31, 12.29, 12.19, 12.00, 11.95. During that 3-4 months, there was only one time when I went to the strip and I didn't set a new PR. And that trip was just as helpful as the others because that's when I learned that I needed to blend some gas with the E85.

Now that I think about it, I should probably ask Sacramento Raceway if they have a season pass.

**colby7** · 10-06-2016 02:01 PM

Originally Posted by rusq5

Same here.

Time to start a norcal group for fast q5s.

No doubt! I hope you've gotten some time at the strip. Looking forward to kicking it next month.

**rusq5** · 10-06-2016 02:54 PM

Originally Posted by colby7

No doubt! I hope you've gotten some time at the strip. Looking forward to kicking it next month.

Not yet. Slammed with work, I'm just hoping I'll have the AMS cooler and test pipes on by Nov.

Trying to line up the 189mm pulley right now. Maybe both can go on this month.

**Chris@EPL** · 10-06-2016 02:56 PM

Originally Posted by rusq5

Not yet. Slammed with work, I'm just hoping I'll have the AMS cooler and test pipes on by Nov.

Trying to line up the 189mm pulley right now. Maybe both can go on this month.

I can check, but pretty sure the Fluidampr 189s are in stock.

**Adplaya** · 10-06-2016 03:45 PM

3.8sec 0-60!?!?!?!

Insane numbers. I have been looking to tune soon, as I found a dealership willing to accept a tuned car.. This is swaying me towards EPL for sure.

**rgvsq5** · 10-06-2016 03:52 PM

Would times be slower or faster if exact same setup was in an SQ5? Different transmission?

**Tony@EPL** · 10-07-2016 06:48 AM

Great results!

**q5 dave** · 10-07-2016 07:27 AM

geez thats impressive, congrats! and the sound

Originally Posted by colby7

Did you hear those things growl?! That's from inside the car with the windows up. Nasty!

**Silverarrow240** · 10-07-2016 08:02 AM

Originally Posted by Mops@SupremePower

Those Milltek pipes did wonders!!

Congrats Colby

Yeh she's sounds NUTZ! GREAT WORK MAN!!!!!

**Q5OnTheMove** · 10-07-2016 09:42 AM

Originally Posted by rgvsq5

Would times be slower or faster if exact same setup was in an SQ5? Different transmission?

I could be wrong, but from reading the thread here (SQ5-0-60-amp-1-4-Mile-Times), it seems the SQ5 needs an additional gear change to reach the 1320, hence possibly slowing it down.

**Chris@EPL** · 10-07-2016 09:44 AM

I think the Q5 and SQ5 have the same trans, but different gearing

**rusq5** · 10-07-2016 12:04 PM

Originally Posted by rgvsq5

Would times be slower or faster if exact same setup was in an SQ5? Different transmission?

Slower, SQ5 has taller gearing.

**BlackSVT** · 10-07-2016 12:19 PM

Originally Posted by Q5OnTheMove

I could be wrong, but from reading the thread here (SQ5-0-60-amp-1-4-Mile-Times), it seems the SQ5 needs an additional gear change to reach the 1320, hence possibly slowing it down.

I'm pretty sure both the Q5 and SQ5 need that last shift when Stage2+ (108+ trap speeds). All current info shows the Q5 to have 3.204:1 final drive and the SQ5 3.076:1. There seems to be some info showing that the SQ may have had the 3.204 gearing in '14, and there were some early, wrong typos showing 3.760:1, but it's all been tough to verify.

In any case, If you watch colby's Q5 run, he's well into 5th at ~5800 rpm by the end of the run so there was no way to stretch 4th out. My "thinking out loud" on the SQ5's taller gearing was that it might be enough to eek out 4th to the traps, but gary simpson said in the thread u reference that he still needed to shift ~25' from the end.

Bottom line seems to be, even with the supposed gearing advantage of the Q5 over the SQ5, since they both need that last 4th-->5th there's no real advantage there for either. I am curious if similarly tuned Q5 and SQ5 show a better 60' time for the Q5, but it seems like high 1.7s, low 1.8s is possible on both. I dunno

3.076/3.204 is only3-4% difference so it may never make as big a difference as track conditions, driver, etc

**Lavoisier** · 10-07-2016 12:57 PM

Macan Turbo owners are peeing their pants!

**colby7** · 10-07-2016 01:57 PM

Originally Posted by Lavoisier

Macan Turbo owners are peeing their pants!

Haha well it's true the Macan crew haven't gone this fast yet. But I know I guy with one who's a hell of a driver, and I'm confident he will mod his out and put me in his rear view mirror.

**colby7** · 10-07-2016 02:32 PM

Originally Posted by BlackSVT

I'm pretty sure both the Q5 and SQ5 need that last shift when Stage2+ (108+ trap speeds). All current info shows the Q5 to have 3.204:1 final drive and the SQ5 3.076:1. There seems to be some info showing that the SQ may have had the 3.204 gearing in '14, and there were some early, wrong typos showing 3.760:1, but it's all been tough to verify.

In any case, If you watch colby's Q5 run, he's well into 5th at ~5800 rpm by the end of the run so there was no way to stretch 4th out. My "thinking out loud" on the SQ5's taller gearing was that it might be enough to eek out 4th to the traps, but gary simpson said in the thread u reference that he still needed to shift ~25' from the end.

Bottom line seems to be, even with the supposed gearing advantage of the Q5 over the SQ5, since they both need that last 4th-->5th there's no real advantage there for either. I am curious if similarly tuned Q5 and SQ5 show a better 60' time for the Q5, but it seems like high 1.7s, low 1.8s is possible on both. I dunno

3.076/3.204 is only3-4% difference so it may never make as big a difference as track conditions, driver, etc

I think with a TCU tune both the Q5 and SQ5 could make it in 4th gear. The TCU tune could adjust the redline in "S" mode to 6900 or even 7200 rpms. That would allow us to stay in our gears a little longer. Gary's SQ5 was shifting from 1-2 and 2-3 at 6500 rpms, and he was missing the finish line by just 25 feet. With a TCU tune, those shifts could all happen at 6900 rpms, and SQ5s would easily make it in 4th gear. The Q5s might need to go with a 7200 rpm TCU tune in order to finish in 4th gear.

Because the Q5 has a higher final gear ratio, it produces more torque, and should have better 60ft times. My best 60ft so far is 1.768. I don't know of any SQ5s that have done a 1.7x.

The other day I was logging data on a back road pull, and one of the items I logged with my VCDS was engine torque. I had readings over 700nm. That converts to over 515 ft-lbs of torque.

**q5 dave** · 10-07-2016 02:52 PM

Originally Posted by colby7

over 515 ft-lbs of torque.

sign me up for epl

**Chris@EPL** · 10-07-2016 03:00 PM

You rang?

**LW3** · 10-07-2016 03:24 PM

**rgvsq5** · 10-11-2016 08:10 PM

What VBOX do you have? If you're feeling really nice, link to it?

Sent from my iPhone using Audizine

**colby7** · 10-12-2016 10:54 AM

Originally Posted by rgvsq5

What VBOX do you have? If you're feeling really nice, link to it?

Sent from my iPhone using Audizine

Vbox sport: http://www.vboxmotorsport.co.uk/inde...ers/vbox-sport

It's accurate with .5%. That means my 3.83 reading is within 3.75-3.91.

**colby7** · 10-13-2016 09:42 AM

New update: Tony at EPL made me a race file over the last week, and I took it out to the strip last night to do some initial logging. Typically what we do is start with a conservative file, and do iterative file updates to dial it in from there. All five passes last night were in the 11s. My fastest was 11.895 @ 114.07, including a 3.79 0-60.