I don’t think you need to worry about anyone doing that here.
Most of that was obviously directed at the AZ crowd.
I know dyno results are not a popular topic of discussion. Like almost everything I end up in the middle of, I have mixed feelings about it. I think it’s a great tool for tuning and testing. I have done a lot of that, and it is much better than doing it on the street in many cases. It’s also a tool that often gets misused and/or twisted in the wrong way. Unfortunately, my dyno posts probably don’t do a lot to help that issue, but I do think it’s information that should be shared. If people don’t get it, they probably don’t get a lot of things. Like I said in the post, take it for what it is.
Yeah, the logs look good… Both cars did very well… great IAT’s, nice timing, and no bypass = great #'s… His car is making some very nice tq down low and I can feel that on my car as well which is why I think I’m now able to cut sub 1.6x 60’s… He should be able to as well, he just needs to really really shallow stage… Can’t wait to see his run results, the track is at a low elevation so he may get great DA’s… Sucks it’s so far away for you guys…
Yeah, now that you mention it I remember us talking about the intake stuff… Either way I bet your car is in the 11.7x-11.8x range now in good DA! Thanks again for putting this together! Great example of how the dyno should be used and what it can show…
Thought Tony made a good post… I feel he has marketed his product well, been active on the forum in a positive manner, and so far produced results with his product. Tuning at home is no doubt a good way he is differentiating himself and getting people to purchase his product and now with some of the results we’ve seen looking favorable he’s going to do very well, just look at his group buy. I think it’s good for everyone anyway. Someone needs to get him a dual pulley car… lol
Looking forward to andthen’s runs Sat. with the right DA he’s going to be real fast!
[QUOTE=Tony@EPL;11347542]First off… Thank you for putting together a great post. Good data from different cars, set ups, but most importantly same dyno and same day.
Quote Originally Posted by jran76 View Post
The EPL stage 1 car suffered there because it didn’t have the smaller pulley, and the bypass opened a little up top. I’m sure that is something EPL will address, but based on the timing and everything else, I don’t think you’ll see a huge gain. There probably is a little power to be had there for sure, and it may change the shape of the graph or whatever….
So by design… the file opened its by pass at a requested torque value JUST above gas stage 1 power. I don’t shoot for significant power gains on files that support “mixed” fuels. I mainly focus on smooth and constant power delivery when e85 is present. You would have seen fairly similar power on 93 honestly. You saw a fair amount of timing advance up top because load was lower do to boost being reduced based on calculated torque. Its actually cool to see in a “proof of concept” how smart these ECU’s are when you don’t just remove all the safe guards that are in place.
Quote Originally Posted by jran76 View Post
The EPL stage 2 dual pulley/E85 car ran out of juice because the S/C was completely maxed out. It’s not designed for that much pressure and flow, and there are diminishing returns once you get to that point. I think you can tell from the logs and dynos that it’s not able to push much additional air through once it gets past 6000 RPM’s or so.
I think I have an interesting “fix” for this when I have time to play with a dual pulley car on my dyno. It also looks like its possible that they just let off the throttle a little early as well!
I wish you were making the drive down with Tom tomorrow… It would be awesome to see both your cars run on the same day just a few days after you measured power on the dyno!
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Looks like low-50’s temperature and sunny skies tomorrow. The track is open from 11AM to 5PM, and the DA should be around -300 to -800 depending on the exact conditions. I wish I could make it… This is Lonestar Motorsports Park in Sealy, TX (outside of Houston). It is IHRA certified, but not NHRA certified. Not entirely uncommon around here.
http://www.lonestarmotorsportspark.com/tech-info/
The two things I’ll give EPL is the flash at home is pretty cool, and the fact he’s willing to do some custom tuning. That may not mean a lot in terms of results, but both offer some added flexibility, and that’s probably a good niche for a smaller tuner. He made a killing off the group buy for what amounted to $1200 all-in for the tune, pulley, and flashing cable.
andthen ran an 11.407@119.74 with a 1.618 60’ time. I don’t know all the details, but pretty quick.
http://i570.photobucket.com/albums/ss146/jran76/C5A0D564-8668-42B2-9D36-AB7DB90266A4_zpsbewe8bkh.jpg
Edit: that was with APR LC at 4500 rpm. -872 DA. Said it hooked up great, and shifted with no issues. He tried a pass without LC, and did an 11.55. Wheels are Advanti HY Hybris and 255/40/18 PSS’s. Should be about 45 lbs. He’s on stock brakes, so LW rotors should help. He weighs about 250 lbs.
Just talked to Tom. Full weight except spare and tools, half tank of gas. Other mods are above with his dyno. It’s kinda cool to see the times and dyno together. Pretty good for a ECU/DSG tunes, couple pulleys, a fuel pump upgrade, intake, and LW wheels. He has about $6000 in upgrades.
Very good indeed
that’s pretty awesome. EPL tuned right ?
Funny that he also ran exactly what primetime ran. 11.40.
He’s down on MPH a bit.
looks like he could eventually get into 11.3x’s with less gas in the tank. (maybe a smaller/lighter driver too, no offense lol).
That 60ft time is Tesla Model S P85D! very nice!
seems like half the dragracers on the forum weighs 225+
lots of really tall Audi owners for some reason. We had a thread a while back about headroom in the B7 and like 20 guys checked in at over 6’2" and talked about how they find the space.
Tom (andthen) and I made it to the track last night. The DA was in the 400-800 range, and track prep was so-so. Being the first open night, cars were breaking down pretty regularly, and several went off the end (not sure how that happens on a NHRA track). Even with the good DA, Ennis (Texas Motorplex) is not the fastest place to run just due to track prep, elevation, or whatever. This is easily the best DA I’ve run in there. We get maybe two or three open track dates a year with weather like this. So, overall, no complaints…
We didn’t get to run against each other since it was packed, but we ran a few runs in close proximity. I think Tom was running a pretty similar setup to what he ran on the dyno, and on his 11.4 pass. I was running the APR 100 octane map with a mix of a few gallons of 93 with a splash of E85, and I added 5 gallons of 104 at the track. I ran an 11.87@117.58 and 11.91@117.81. Tom ran an 11.63@117.74.
http://i570.photobucket.com/albums/ss146/jran76/EDF54113-60B0-4CE5-9AA0-83BBEF6288B9_zpsii1qkeqb.jpg
http://i570.photobucket.com/albums/ss146/jran76/91BC521E-953C-45B4-9962-AD8405713626_zpsp0b1qtwb.jpg
Sorry, bad camera placement in the video…
https://youtu.be/t0F99FpvVHo
Nice- you held your own against that GTR, he was probably looking over a little surprised I’m sure 
I think he was, and it felt closer than the video made it look. I was surprised I had a better 60’ time.
I think you would have ran better if you did some adaptation runs after filling the 104 octane. That trap is pretty good!
Probably so. I only put about 8-10 miles on it after adding the 104. I usually try to do 25-30. I didn’t plan it out very well, so I had to make do.
We went a few weeks ago for a “Test-N-Tune” day, and I didn’t get to make a single pass after sitting in the staging lane for over 4 hours. I had kind of sworn off going back any time soon. That last time I had bought 5 gallons in advance, run the tank all the way down to about 30 miles past 0, and filled up about 20 miles from the track. All for nothing, so I wasn’t going to go through that again not knowing if I was even going to get any passes in. The organization at that track sucks when there are more than 20 cars there…
heartbreaker dyno AND heartbreaker track? Man you guys have it rough.
question: why put 93 + e85 in when you’re running the race gas file and are putting 50 lbs of race gas in? None of that makes sense.
I filled up with the 93/E85 mix a couple weeks ago (I don’t drive my car much). I got to the track with about 2 gallons of that left in the tank, and I felt like I needed to put something in. It took around 4-5 gallons of 104 octane to get the 94ish octane I already had over 100. I accepted a long time ago that my car isn’t very fast, so an extra 50 lbs. or whatever isn’t a concern.
Texas Motorplex isn’t slow, but it’s not the fastest either. I’m not sure what’s wrong with pointing that out. I’ve shared a lot of information about my car, and it’s performance. Every form of measurement should have some context in regards to how/where/when the data is collected. Some tracks are faster than others. Some dynos read higher than others. It’s easy for some people to misconstrue results without that context.
Texas Motorplex is the only 1/4-mile track anywhere close to Dallas/Ft. Worth. 6 million people live in the area, so any time there are decent conditions, it’s packed. This past Friday were the best conditions I’ve seen in many trips there, and it was still in the positive 400 to 800 DA range most of the night. Combine that with the elevation, so-so track prep, long/slow staging lanes, and it’s not the best combination of factors. It’s not horrible either (at least until June)…
I’ll fully admit that I’m not an expert on drag strips, so if there is something I’m missing in regards to those factors, let me know. It just seems like the tracks at sea level, or where you get a -1000 DA on a sunny day, are faster in the most basic sense.
Nice run Josh. Trap is pretty nice though I’d expect slightly more with the TCU tune… Looks like the 2-3 shift was a bit sloppy too. Still better than my best trap at Milan by a tiny bit!
My experience with having more than one fuel type in the tank has always been bad. You may very well have seen a nicer ET with just the race gas in like you had done for the previous track day… Plus DA wasn’t exactly stellar so you had that against you
I find my car runs best when I drive it far past 0, then fill up and let it adapt with the race has. I wouldn’t say your car is slow… Don’t know why one b8 s4 would be faster than another? Though I have seen that posted around on here before… I think if you can snag a nice DA and get the fuels sorted out, you’ll squeeze a bit more out of the car
Slap that second pulley on before the next outing ;D
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Thanks!
You are right, the 2-3 shift isn’t great.
I usually try to run the tank 25-30 miles past 0 to change the fuel type, and then another 25-30 miles with the new fuel. That seems to work best for me. I had about 5 miles left showing on the display when I got to the track, and after driving in rush hour traffic for 1.5 hours, I didn’t feel like driving another 45 minutes to burn off all the fuel. The logs I got actually looked pretty good (24-25 degrees of timing, little to no knock, no bypass).
My car isn’t slow, but I don’t have LW rotors and my wheels are average for lighter wheels. My BBK actually weighs a few pounds more than the stock brakes, and my wheel/tire combo is about 46-47 lbs. I also don’t know that I’ll ever run in a better DA than these passes. It’s about the best we can ask for. I guess what I should say is my car is never going to sniff the record pass times.
I’m definitely considering the oversized crank pulley, but I don’t know. I’m pretty happy with where the car is now, and it’s never really been about squeezing everything out of it. I originally got into going to the drag strip just as a way to make sure the car was doing what it should. Now that I finally feel like it is, I’m not sure how much further I want to take it. With that said, I’d like to see a better revision of the DSG tune, and I’m going to think about the dual pulley and the E85/HPFP upgrade.
that trap should put you at 11.6x with a better 60ft.
on a side note, I’m deciding between dual pulley with my standard GIAC race map (cheaper route) or just getting some 21lbs wheels with PSS’s that are 4lbs lighter than stock OEM S5 rotors (more expensive, but more consistent in unsprung reduction effect).
thoughts?