Here is my first tune woundering if there is anything i can changed or should change on it?? first run with new tune on.efi
Here is my first tune woundering if there is anything i can changed or should change on it?? first run with new tune on.efi
2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...
Now own a 2015 1LE camaro
From just looking at your log it looks very good.
No KR, LTFT's are slightly negative, injectors max out ~71% (good).
My only question would be do you have a wideband?
Last edited by WeathermanShawn; February 10th, 2010 at 12:29 AM. Reason: Grammer
I don't have a wideband yet, but it's in the making. No issues at all with this tune. It really woke this car up big time. I am very pleased with it. I still do have the cat protection mode enabled. Would you see this as a problem? Maybe as to why the LTFT are in the -??
2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...
Now own a 2015 1LE camaro
No, it is O.K. to have your LTFT's in the negative. Overall, thats more favorable for WOT fueling (no extra fuel added).
As far as COTP enabled, when you get your wideband I would disable it. Under COTP AFR's are ~11.9, way to rich for maximum performance. IMO, as long as you are not doing 3-4 rapid-fire WOT of >15 seconds, your cats will be 'fine'.
I believe the Commanded Fuel Pid GM AFR does not reflect when COTP is being utilized. Just a F.Y.I., as your log on GM AFR indicates.
With no KR, and the rest of your tune looking good I seriously doubt you are running lean. The wideband would just give you the confidence of a having the AFR at WOT that you want. Disabling COTP will give you a a even nicer WOT pull.
Last edited by WeathermanShawn; February 10th, 2010 at 12:28 AM. Reason: Grammer
We have seem some evidence that COTP does show up sometimes in the commanded AFR... yeah, it confused me... the cats should be fine with COTP disabled unless you're doing extended period WOT pulls.
At 02 sensor readings consistently around 905mv, I ran around 12.7:1 AFR consistently with my stock Z06 and airbox. At slightly above 890mv, I found the car pulled real hard. I settled with around 905-911. At less than 890mv, I found a slightly lean mix.
Your tune looks good, but I would recommend you consider a slightly richer mix on top.
07 Silverado DMax Classic
02 Z06 LS3 416, 805rwhp, TFS245, Wiseco, Callies Crank/Rods, Iskendarian Lifters, Crower Rockers, FAST102/90, ATI Damper, 1-7/8 Kook's LT, QkTime Shield,Tolle-Fab 8pt
Old Engine: 1/4mile = 9.6/146 New Engine:?
EFI Live Tune/Scan v7.5.27, EFI Live Scan and Tune v8.2.23, build 276, BootBlock 2.07.06, FirmWare 2.07.52, 512K RoadRunner (12.14.R), Innovate Serial LC2x2
COS5/12212156 For 2002 Z06 Manual Vette
I have noticed now with the temps in the 80's that i do have some kr a lower underload speeds with this tune. but as long as i don't "bog" the motor down and i keep the rpm's up i don't incure any kr. Would you see this as a problem having knock or should i get reduce the timing in the lower rpm's? I have attached another run without cat protection inabled and also at a warmer temp.
2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...
Now own a 2015 1LE camaro
2001 camaro z28 ss vert with factory slp upgrades, Hooker long tubes, 3"y-pipe to a 4" muffler, ,airlid,s.s.r.a. ,t.c.bypass,descreened m.a.f. 232/234 .595,.598 +2 comp cam with ported and polished stock heads with .650 lift dual springs and a bowl grind. tuned with EFI Live. All combined to achieve 29 m.p.g. and 399 r.w.h.p. with 384 lbs of torque. sold...
Now own a 2015 1LE camaro