Let's see your fully tuned timing maps
You most likely just need to raise the knock threshold down there. I had the same problem and it seemed that no matter how much I lower the timing it persisted. Raising the knock threshold hold got rid of it. As long as it is not a lot of knock it is not worry some at such low load and rpm, I believe.
21-22 psi tapering to 19.5tephra v7, ix turbo, hks 280 cams. pte 1200cc, full exh. fp intake pipe, ams balance shaft delete, muse uicp, xs pwr fmic, xspwr licp grimmspeed 3 port 93 oct gas
If I try to do a log starting from 2500 rpm or even 3000 rpm I get knock right away cant figure it out. AFR is around 11.7 tapering to 11.3.
p.s. this is not a english racing tune. getting a english racing tune if I can not figure out knock by myself.
Yeh i had a similar issue with tip-in knock, no matter what i did couldnt remove it esp in lower gears like 1st and 2nd, i had to lower the Knock Sum decay timer and increase the knock load threshold in the lower rpms,
Here is my current map @26psi
Here is my current map @26psi
lol I was playing with that at the drag strip. I found that when shifting my car would carry 38* timing all way into the 200+ load areas so I lowered it to match what it is normally at that point on my map at high load/rpm. I have it with only 38* in that section as well. So far I have not touched the 11 area except for at the track.
Looking at my map tracer it looks like I would have to change it in up a little to get rid of the rest of the high timing btwn gears. I am curious if it will help bring the boost back btwn gears.
Here it is normally
Looking at my map tracer it looks like I would have to change it in up a little to get rid of the rest of the high timing btwn gears. I am curious if it will help bring the boost back btwn gears.
Here it is normally
Last edited by mt057; Oct 26, 2010 at 10:45 PM.
+100000 smooth the timing in low loads
thats the problem of knock in spooling
try this test: making a test of 1 log of 50% trhotle and aply progresive until get full boost and full throttle controling that the cars use a diferents interpolation of timing with the same map and probably you gona get 0 knock if thats occurs the problem is : you need smooth map, otherwise Wiseco piston (piston pin) sometimes. or Twin Plate cluths...
thats the problem of knock in spooling
try this test: making a test of 1 log of 50% trhotle and aply progresive until get full boost and full throttle controling that the cars use a diferents interpolation of timing with the same map and probably you gona get 0 knock if thats occurs the problem is : you need smooth map, otherwise Wiseco piston (piston pin) sometimes. or Twin Plate cluths...
Ya the smoothing has def helped alot so far, I dont think I want to touch the knock sensor sensitivity because it seems like when it does get knock it causes more knock to occur as it goes up in rpm. Once I took care of the low load/rpm knock the higher load/rpm knock did not occur. Does that make sense? LoL
The reason for that block might be to try and get rid of shift knock, I believe that is the part of the map that the ecu references while shifting gears, I have seen a thread where people set the timing to -10 in that area to get sweet ricer flames while shifting lmao
I can see that. Slowly rolling on the throttle in that rpm range right after you let off is uhhh......yeah. I'll leave it at that.
I am not slowly rolling on to the throttle after switching gears. I am slow to shift though. It takes me roughly .6 to .8 of a second btwn 100% tps on my data logs. I tried lowering it help keep the turbo spooled btwn gears. I need to reduce a little more timing out in the 200 range to make it pretty smooth timing transition even when shifting. I never see that area in DD. I am going to keep testing it out at the drag strip vs the normal timing and see if I find any gain. If not I will use the normal timing in that area. I am not trying to shoot flames ect. Just trying to improve my 1/8th mi. times. I am trapping 91.6mph with a horrible 7.7-7.8 et.

19psi peak - 17psi taper, mid 11 afr, intake/catback/tune are only mods, on ~92-93 octane.
TXS front pipe arrived today, so will be permanently installing wb02 and completing the tune.
why do you have the timing set so retarded in the 4000-7000 and 0-140 load range? there is no way i would want my car shooting flames.
ill post my map up later on when i get out of class, 26psi on stock turbo 11.6afr.
ill post my map up later on when i get out of class, 26psi on stock turbo 11.6afr.
Last edited by evo8426; Oct 28, 2010 at 08:05 AM.






