Let's see your fully tuned timing maps
You generally will stay above 150 load during a quick shift. If you want to hold boost between shifts you need to NOT close the throttle plate. To do that you just need the Tephra No-Lift-To-Shift feature. Some do it old school still too. That is strictly a launch/boost building area that he adjusted. You most definitely will pass thru that area under certain circumstances. That's what the Tephra V7 launch maps are for.
Last edited by Jack_of_Trades; Oct 28, 2010 at 09:21 AM.
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.
Here is my timing map. I hit 26psi hold 25 through 5000, drops to 24psi and then tapers to 21-22 at 7000. At peak torque it is 11.6 afr and drops to 11.4 at 7000 on pump 93. I use the NGK Iridiums gapped at .022
You generally will stay above 150 load during a quick shift. If you want to hold boost between shifts you need to NOT close the throttle plate. To do that you just need the Tephra No-Lift-To-Shift feature. Some do it old school still too. That is strictly a launch/boost building area that he adjusted. You most definitely will pass thru that area under certain circumstances. That's what the Tephra V7 launch maps are for.
Evolved Member
Joined: Sep 2006
Posts: 800
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From: Newcastle, Australia.
Dont recommend it under 3k, affects drivability just a little.
Yes NLTS is the better option, I'll just wait til my EGR is blocked off and get the ALS working.
I was nervous at first, but that dreaded clunk when shifting everyone including myself complaned about, I have not heard it since the day I went to NLTS. Its soo smooth now.
One of the biggest myths is that NLTS is 'worse' abuse on the drivetrain when in reality a lightning fast NLTS shift is less severe. Allowing more 'preload' (for lack of a better term off the top of head) on the gearing, then SLAMMING the gears back together will increase your chances of damage.
EvoScanDataLog_2010.10.29_07.17.57.zip
EvoScanDataLog_2010.10.29_07.20.50.zip
here is my log i ran this morning. boost is set about 23 psi and falls to 21 up top. AFR is about 12's in midrange, falling to 11:5 up top. it seems when i start my 3rd gear pull around 3500rpm, i get almost no knock. when i start around 2500rpm before spool, maybe the lean spool and high timing is causing knock and actually carrying that knock into my midrange.. thats my hunch atleast. i have alot more work to do to chase down this knock but wanted some feedback so far.
EvoScanDataLog_2010.10.29_07.20.50.zip
here is my log i ran this morning. boost is set about 23 psi and falls to 21 up top. AFR is about 12's in midrange, falling to 11:5 up top. it seems when i start my 3rd gear pull around 3500rpm, i get almost no knock. when i start around 2500rpm before spool, maybe the lean spool and high timing is causing knock and actually carrying that knock into my midrange.. thats my hunch atleast. i have alot more work to do to chase down this knock but wanted some feedback so far.
One of the biggest myths is that NLTS is 'worse' abuse on the drivetrain when in reality a lightning fast NLTS shift is less severe. Allowing more 'preload' (for lack of a better term off the top of head) on the gearing, then SLAMMING the gears back together will increase your chances of damage.
If the smoothing can not fix you know down low. You might be in the same boat I was and need to raise your know threshold down low. I had tried smoothing and reduceing timing etc., but for me it never seemed to go away so I raised the threshold and its gone.
Why such high timing at idle. I though that was mainly done to help compensate for large cams.
I think that JOT was refering to the nlts mod and not the old school way, although I could be wrong.
Why such high timing at idle. I though that was mainly done to help compensate for large cams.
I think that JOT was refering to the nlts mod and not the old school way, although I could be wrong.
Newbie
Joined: May 2009
Posts: 56
Likes: 0
From: panama
One of the biggest myths is that NLTS is 'worse' abuse on the drivetrain when in reality a lightning fast NLTS shift is less severe. Allowing more 'preload' (for lack of a better term off the top of head) on the gearing, then SLAMMING the gears back together will increase your chances of damage.
+10
i fell that i abuse to less if i use NLTS
1)less abuse
2)BOOST not fall to 0 psi between shift
3)the car keep desplacing.
i am a NLTS adicct fells like you have a dogbox its just a perfect shift and less chance to fail shifting or blow engine overrev...
i bumped idle slightly and really helped smooth out the cam lopyness....
do you think lean spool is giving me trouble in the mid range? sometimes i get clean runs but when i get "messy" runs, its the peak torque area that i get most of my knocks.... im going to try disabling lean spool and i hope i dont feel any noticable turbolag
do you think lean spool is giving me trouble in the mid range? sometimes i get clean runs but when i get "messy" runs, its the peak torque area that i get most of my knocks.... im going to try disabling lean spool and i hope i dont feel any noticable turbolag
Last edited by mifesto; Oct 29, 2010 at 10:56 AM.
Newbie
Joined: May 2009
Posts: 56
Likes: 0
From: panama
i bumped idle slightly and really helped smooth out the cam lopyness....
do you think lean spool is giving me trouble in the mid range? sometimes i get clean runs but when i get "messy" runs, its the peak torque area that i get most of my knocks.... im going to try disabling lean spool and i hope i dont feel any noticable turbolag
do you think lean spool is giving me trouble in the mid range? sometimes i get clean runs but when i get "messy" runs, its the peak torque area that i get most of my knocks.... im going to try disabling lean spool and i hope i dont feel any noticable turbolag
for me 12.5 its good...
