I'm referring to VD in the second quote

 

Ok.

 

comparing smoothing values can be a bit tricky. VDR v5.71 uses a predetermined interval of 50 rpm increments so the length of Data being smoothed is relatively predictable. An exception would be someone like Mellon who revs to a higher rpm so he would have slightly more data to smooth but only a small percentage more. V6.00 uses every line of data so the smoothing value is determined by the resolution of your pull (high res. Pulls will require the slider to be moved more). I can't recall how Brads smoothing works exactly so his may be more repeatable.

Point being, it'll be hard to compare smoothing values between either version of VDR and VD, at least number for number.

 

VD uses every data sample when smoothing. Jack is right that you shouldnt try to compare smoothing correction values... they just wont compare between the apps since they do smoothing completely different.

Ohh and maybe I should change the slogan to "VD ... pass it to your friends"?

 

1.0.0.2 is close ... its been sent to some people to test and once they come back and let me know if its working ok for them, then its going to be posted.

Thanks for being patiently waiting for the RPM trimming feature. Tire size calculator is coming up next (I think).

 

Oh, for what its worth,just to get a 3rd perspective on Evoryders odd situation, I ran his datalog thru the older Excel v6.00 beta and the spike is just as pronounced.

My guess would be a possible clutch slippage near peak torque perhaps??? That will cause such an anomaly on the graphs.

Ignore the HP values in the pic, I didn't adjust any vehicle data. I just wanted to see the curve.

 

I just checked that log Evoryder, that tunes a little dangerous afr wise.... best thing to do is tune for spool for the first 4-6psi of boost only, dont run it that lean throughout, thats asking for trouble and killing lots of potential torque as well. a lose lose situation. adjust your tps. - who knows why the hump is occuring.... maybe its the clutch like jack said.

 

His logs says his AFR is in the 12s during spool. Last time I checked that wasnt dangerous.

Also if you didnt notice, he's running meth.

 

I'm not on a 2.3 ...i'm on the stock motor with a FP RED turbo on 100% Meth. I run it during spool at 12.5 to get this red moving. I have actually already added the pre Meth a/fs to lower the values in the 3750-4k rpm. Anything prior to 3750 and after 4200rpm is fine in my books.

Also to note. I run very little timing during spool.

I don't notice any slippage? I do plan on converting to the triple disc once my exedy twin is done.

 

If you think his tunes safe then I dont know what to tell you. His a/f stays overly lean until 4300rpm and remains in 12's until 6k.... 93oct + meth you think thats safe to run at 12's ? maybe on a dyno with a o2 sniffer, but not direct wideband reading from testpipe.

I think 93 should be 10.8-11 and add meth maybe 11.5? I can manipulate torque pretty easily with a/f at peak area, and leaner down there is not better from my findings.

 

I think you should try to tune for the first 4-6psi and then tapper it down from there you will see your torque shoot up a bit more and the car will feel stronger downlow and be safer also.

I used to tune for broad powerband down there also thinking it was going to spool faster, but it messes up the a/f curve when you tune the entire area down there like that for spool.. id like to see a 1 2 3 4 shift log in your car, i bet your a/f will spike pretty lean 13+.. it will cause problems eventually.

 

First, I never said his tune was safe, I just said his AFR during spool, which was 12's, is completely safe on pump or pump with meth.

Next, if you tune for 10.8 on 93, you tune way too rich. Rich Best Torque (RBT) is 11.5. The only time I tune for 11.0 is when tuning cars that will see 20mins road racing sessions.

And yes, high 11's, low 12's if perfectly fine on meth.

But this is all , so if you'd like to keep discussing AFR, please start another thread or PM me.

 

im more of a conservative tuner i guess. I never tuned on a dyno, only road, so i am overly cautious. my personal car sees 11-11.3 down low. Im only trying to help the dude. Hopefully he will re-evaluate his tune just alittle bit. on 93oct with my personal cars i always did 11.2-11.3.

 

I use mitsulogger and zeitronix. I did a comparison of the 2 with that same log clipped @ 7k RPm

USING MITSULOGGER RPM:


USING ZEITRONIX RPM:

 

is the road smooth and flat? i wonder if this has anything to do with SD setup? that hump is so weird man.. your car is pulling 100% clean no breaking up? I would get it on a dyno asap and see if that hump still exists, if not then just write it off.