Hmm… No E85 or race gas involved? Can we please see the logs? You’re shifting at 6300rpm or so correct?
Palm Beach…standard. That track produces wonderful results that defy DA logic. Don’t forget the fonzie pass…12.2 @ 115.7 on stage 1 , in Florida! PBIR also. Oh…and that was 93 octane :). Stage 1, no intake, no lw parts, and just 034 HFC which we know don’t really move the needle.
Saki, Good point and I think that’s where the stock 12.69 6-speed time was run if I remember correctly… Difference is he’s a b8.5 dsg which shifts way low so that’s why I was surprised… I’d still like to see the logs since we’re all sharing logs and such, I’m sure he took some…
ah yes, good point on the DSG limit
His slips say Palm Beach which has a DA of about 1500… 93 octane, tune, intake and piggy pipes, that is quick for a car that does not have a pulley upgrade (I don’t see it listed).
For Comparison buddy John did a best of 12.41 @ 113 mph with APR Stage 2+ carbonio, and AWE cat back on 91 with a DA of 2950 on his first time at the track. DSG helps a lot.
I agree it’s quick for a new DSG car with no DSG tune… He didn’t gut his cats he means CW piggyback… Also, another 1500 foot of DA on these cars is a decent amount… Obviously, he ran the time I have no doubt of that just seems fast for straight 93 in that DA with no DSG tweaks… Just my .02
to be realistic, 12.48 isn’t that quick. That’s 2 tenths faster than the fastest ever stock B8. So in perspective it’s not really worth talking about
You guys should be WAY more surprised and skeptical of Fonzie’s result from like 4 years ago.
Ah I thought the piggy meant his pipes, yes that is quick with no DSG tune or pulley.
What is the record for a factory B8 DSG?
Serious question - is there a way to measure coefficient of friction on the pavement of these tracks? Probably makes a huge difference, more than DA. That has to account for the variance. I’m going to assume they’re all level within 4" of height.
Separately, I have a suspension question about drag racing. The new Mustang has a drag mode where the magneto-electric rear dampers go soft on launch, and then stiffen up when the car starts moving. But when I look at drag racing suspension kits for the normal V8 Mustangs they have like 150 pound front spring and an 800 pound rear spring. So I guess that penalizes launch but helps the front end stay planted if you’re making crazy supercharged power?
In case Mike isn’t still here - he added a pulley with the Chipwerke for these runs (which he has described in the Chipwerke thread and has logs posted as well).
Running a pulley with that map sensor spoof is extremely ballsy. I would absolutely not even think of doing that. Did they build him a different CW spoof map or he can just turn up the knobs? Which means he is now way further off the loads then the ECU thinks.
I absolutely don’t think that knock detection taken at a 5Hz sample rate from a diagnostic interface is indicative of engine safety for a piston that is firing every 20 msec at 6k RPM
6000 RPM * (1 min / 60 sec) * (1 fire / 2 revolutions) = 50 fires/ sec => .02 sec / fire
Yeah it is ballsy! I was fairly impressed with the logs. The lambda was right on (despite a higher differential in fake load/airflow vs actual). He did see a little knock correction on CW (maybe for the first time?). One thing is the stock B8.5 load/timing curves are apparently quite conservative (stay well below the knock threshold) compared to B8 so I think this gives him room for error. Other cars I could foresee more severe knock correction. Can’t comment on what we miss due to the low sample rate but it seems a valid point.
If anything, you want more friction with the drag surface to hook your tires up. And no, that does not make a bigger difference than DA lol Maybe it matters for the fuel economy on a toyota corolla.
Are you talking about an older mustang, or a S550? Cause the older mustangs had obviously different suspension setups. Here is a new one going fast…
http://www.svtperformance.com/2015/10/28/video-8-7-second-2015-mustang/
There was supposedly an old hack with the old Pontiac Sunbird 2L turbo: if you shut off and restarted the car while the MAP was under vacuum, you could trick the car into recalibrating extra boost.
I remember throwing resistors on my B18C motors IAT to get richer or leaner too…
This CW thing is pretty much as hack-ish as that…lol!
Naw bro, it has something they call rev sens http://www.audizine.com/forum/showthread.php/645409-B8-5-S4-stock-versus-APR-Stage-1-tune-versus-Chipwerke-piggy-back?p=11144085&viewfull=1#post11144085
This pic looks like something from south park haha
http://www.chipwerke.com/wp-content/uploads/2015/08/Setting-diagram-Recovered.png
AZT, thanks! Didn’t know he was running a pulley… Sorry gave up on the chipwerkes threads months ago… He should disclose that in his 1/4 post…
Drob, LOL @ The South Park analogy…
Say what you want about the CW - it is a crude device - what impresses me is how the B8 S4 adapts it with such elegance. Suddently telling a forced induction motor it is flowing 20% less air @ wide open throttle would get you in alot of trouble with other motors lol.
I’d say the car running full time closed loop really helps here.
has anyone made the spinal tap joke yet out the knobs being turned up to 11?
I don’t understand why he doesn’t just go stage2 with GAIC or APR? What is he gaining from taking on this additional risk versus just going a proven low-risk route if he really does want to go faster? I guess its just for fun and if the engine blows, no worries, just get another?