Let's see your fully tuned timing maps
Dec 18, 2013, 08:12 PM
#2478
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ive been working to establish trends in a clear manor . More experimenting. I'm pretty sure my spool timing is lacking a few degrees
s2 cams
skunk2 ported intake manifold
stock exhaust manifold
HTA 71 with 84 cover and intake tube
type s bov
jmfab intercooler
Im gonna work on getting the spool timing back in, rough 2-4 degrees
I thought I had more timing in there at peak load but im gonna work on that ramp! peak load at 3750 - 340 ish
7500 - 270ish
s2 cams
skunk2 ported intake manifold
stock exhaust manifold
HTA 71 with 84 cover and intake tube
type s bov
jmfab intercooler
Im gonna work on getting the spool timing back in, rough 2-4 degrees
I thought I had more timing in there at peak load but im gonna work on that ramp! peak load at 3750 - 340 ish
7500 - 270ish
Jan 11, 2014, 09:54 AM
#2483
I agree that is a lot of timing at peak load, especially with an afr of 12.7.
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
Jan 11, 2014, 10:20 AM
#2484
sort out the boost control, peak load at 3656@247 then it drops then peaks again 4343@246 and again 5062@247 , it need some more fuel @3500 to 4500, if peak load should be 3656 then you need 11.7ish there maybe a degree less timing there too
Last edited by todd6027; Jan 11, 2014 at 10:22 AM.
Jan 11, 2014, 11:04 AM
#2485
I agree that is a lot of timing at peak load, especially with an afr of 12.7.
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
Also, pretty sure his AFRs are lean then go so rich because he probably still has lean spool enabled.
Jan 11, 2014, 02:37 PM
#2486
I agree that is a lot of timing at peak load, especially with an afr of 12.7.
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
Couple notes from your log and your timing map:
1. You're peak load/boost timing should really be no more than 4* and afr should be in the neighborhood of 11.7 +/- 0.2.
2. You taper to an afr of 10.6 with 16* of timing. Taper your afr to 11.1-11.5 depending on your use and run a little less timing, like 10-13* out the top.
3. You should be hitting peak boost prior to 4k. I have not worked much with the greddy ebc so I am not sure if it is the controller or a boost leak that is causing it, (if it is a boost leak that would explain the 10.6 afr out the top).
That timing is high, because of that low boost hes running. Less boost = Less density of the air = more timing needed. Also, if its on pump and the knock sensor is happy, then he's fine and lowing timing may make him loose power.Also, pretty sure his AFRs are lean then go so rich because he probably still has lean spool enabled.
Thanks for your notes, but the reason why am running such lean afr on spool up till peak boost is because i want higher egt's in this area for a faster turbo spool ,and richer afr at mid range till red line , because i want cooler egt's to stay on the safe side.
As for the peak boost at 4470 rpm , it's the gain mod in my greddy ebc ,it try to maintain the same boost as much as it can before tapering down therefore my peak boost rpm is higher than normal.
Don't forget that am running 21 psi at peak boost tapering to 18 psi by red line and am on 93 oct fuel so according to boost and afr my timing is that high.
CHEERS
Last edited by nicolassabra; Jan 11, 2014 at 03:03 PM.
Jan 14, 2014, 03:04 AM
#2487
