jran76, that’s great stuff thanks - now perhaps here is the key: you have a B8 right? I’ve only seen this timing ‘aggressiveness’ in B8.5 logs of the latest APR 93 revision.
I do have a B8 (2012). The B8.5’s I posted above were on GIAC and Revo tunes.
Somewhere I have logs for a B8.5 with APR stage 2 (both drob and and a local guy, but I’ll let drob post his own logs if he wants). I’ll see if I can find them. I don’t recall the timing being much different, but I’d have to verify. Unfortunately my log organization has gone to hell, and outside of my own logs, it’s a little hard to tell what’s what in a lot of cases (those Revo and GIAC screen captures I already had in my photobucket account…).
And I’ve never personally logged a stage 1 car, so I can’t really comment with any certainty there. I’ve seen a few logs posted, but not enough to pretend that I know what’s going on…
I’m also at work and tinypic images get blocked - but Karma you for the post. But I looked quickly on my phone, and the total advance is within a degree of APR stage II 100 tune timing at all 3 rpms, on the log I took from Matt’s S4 last weekend (I have that open right now). And this is with loads within 50 kg/hr of what he showed. I asked Tsivas to have a look, and he confirmed what I think too.
But this is moogas’ car right? I think we all already thought this was a 100 tune, and this confirms it. Somewhere a mistake was made either at the APR dealer or at APR…I just can’t see it any other way.
He should be filling with 100 all the time, primetime style.
Jran I’ll look at these logs later…
This is from a while ago when I was trying to track down my issues (June 3, with TCU tune and I believe stg 2 3.0?). I have 3 types of log configurations, so I don’t sit there and dick around on the tablet before taking logs - knock, fueling, boost. I think one of these is fueling, one is boost. Pretty sure this is before the cat broke off.
https://c2.staticflickr.com/6/5712/22398646270_2622a3b8be_b.jpg
https://c2.staticflickr.com/6/5652/21965543093_d75fa85f5c_b.jpg
Boost is being bled off, but I don’t see anything weird about timing being too advanced.
Drob,
So these logs were taken when your car was (generally) also seeing high knock correction? As long as that is occurring your actual timing won’t reflect what the tune wanted but rather what the knock corrected it to.
It would be interesting to do a log of your car now that it has less knock correction (and especially with more E85/race fuel which at some point should eliminate it altogether as it did for moogas - with 0 knock correction you see actual timing values reflecting what your tune wanted to run).
Since you asked, this is a log taken from my B8.5 APR 93 Stage 1 car back in summer weather. I had been seeing a tad heavy 6+ degree knock correction on 93 in low to mid-range at times (less on the top end) which you’ll see in the log after this one. I then added E85 for this log making it roughly 95-ish octane and actual timing values increased and correction dropped to just 2-ish degrees in mid-range and virtually 0 on top end. I don’t have a TCU tune, but highest timing I log is 24.357@6211. But the other APR car peaking at 28 degrees@7000 rpm appears to have been around 25 degrees at 6211, so that might be in the neighborhood where I’d end up.
http://i65.tinypic.com/maci04.jpg
This is a particular 3600-4000 where i had alot of correction on 93 and you can see above it is now only 1-2 degrees and hitting 14-16 degrees. Here is the log before I added the E85 (same day, similar load).
http://i65.tinypic.com/35lc9qu.jpg
Timing on 93 only 11-13 degrees due to several extra degrees correction with 93 gas.
What I’d like to do is log in colder weather (much better MAF flow/load) and with enough E85 to see 0 correction, and see where the tune ends up.
(edit - sorry forgot to set my pictures public)
Jran,
Your V3 log looks like you have an average load kg/hr, your V2 load looks a lot higher, and then with retarded timing.
The revo 8.5 log car looks really weak load-wise…thus the advanced timing (plus, well, it’s REVO lol…still up to their old tricks)
GIAC car is knocking hard - yeah hard to get a read on what the timing should be.
Drob,
You’re a couple of degrees higher than what I expect, I never had V3, but one of my old V2 logs below shows a couple of degrees less for a similar load.
https://farm1.staticflickr.com/766/22591554465_c6853ff105_o.jpg
AZT - jeez, yeah the load on a stage I car is so low. You’re picking up 2-3 degrees of timing from that.
At 4000/5000/6000 rpm you’re only at 680/850/1070 kg/hr.
Compare to a healthy stage II at 800/1000/1200 kg/hr at the same RPM.
Beyond that, sure, I’d agree you’re 2 degrees more advanced in general. Maybe that’s APR V3 revision changes. But I wouldn’t say it’s as bad as moogas. He’s got something weird going on, like a 100 tune.
You guys want to see a couple healthy S4s…
The second one is someone here from a couple years ago. Wonder if he recognizes it lol. Monster car
https://farm6.staticflickr.com/5827/22566055366_b105aa47e6_c.jpg
https://farm1.staticflickr.com/651/22603453931_dcd6a0b8a3_c.jpg
AZT you need a pulley, pronto…
Yeah the 80+ deg weather and stock intake didn’t help. I generally see 50-60kg/hr higher in more recent logs but hadn’t been logging timing.
Lol looks familiar. Especially with boost calculations at the far right.
lol tsivas 1500+ kg/hr on stage II. Must have been a nice night
And for old times sake,
Behold the kings of timing advance: REVO stage I 100 tune, version 1
https://farm1.staticflickr.com/659/22604724631_fef6c38313_c.jpg
Jeezus. 35 degrees at 66C IAT. That is completely nuts. I heard the rumors, but I guess I never saw a log for it.
Yup…even nuttier thing, it’s hitting 25 degrees by 4000, 30 degrees by 5500. I have a knock log, believe it or not, theres 2-4 degrees knock retard on most cylinders at WOT.
It’s interesting how the strategy has changed with regards to boost control. Seems like now they pretty much have target boost set-points always high enough to keep the bypass valve closed.
for stage 2…not stage 2+ yet. That will be interesting to see guys make runs with capacity for 2+