For Richer Or Poorer!!
Thread Starter
Launching!
Joined: Jul 2005
Posts: 211
Likes: 1
From: Guatemala City.
For Richer Or Poorer!! with the access of the bin repository and the need of been curious (not george ) Ive realized that there are two schools of thought: tuning very rich with VERY agresive ignition timing, and (for me the most "correct") stoich ration of 14.7-15, even 15.17 and moderate (almost stock) ign timing.
WHATS YOUR OPINION?
this is for dyno tuners, and street "driveability" tuners!
WHATS YOUR OPINION?
this is for dyno tuners, and street "driveability" tuners!
I'm assuming you're talking about part throttle. Personally, I like to run an open-loop tune if I can monitor it with a wideband. I have had both open and closed-loop tunes in my '02. Granted, it's stock internals. But, the open loop tune I had I liked a little better because there was no "PE lurch" when it kicks in during more agressive part throttle driving. Fueling became progressively richer as manifold vacuum dropped (MAP increased). It felt a little smoother...a little more responsive....and I could run a little more timing. I still got roughly the same mileage since the light loads were still set at a 14.7:1 AFR. With the car back up for sale, I restored a closed loop tune and I'd like to think I can feel a difference. But, it may just be in my head.
define VERY rich. cuz its stupid NA to run lower than 12.4
part throttle run 14.7 - 15.2
WOT pe mode run low rpm 12.5-12.6 then scale up to 12.9 or 13.2 at high rpms
dial in VE table and MAF table
if its a non-ls6 style or 00 and older car run around 27-28 degrees timing WOT up top with the fuel listed above
if its a ls6 or 01 or newer run 25-26 degrees timing WOT up top with the fuel listed above.
*each car is different and I have had differences between tuning cars. some liked less timing, some liked more fuel, some liked less. etc etc.
get on a dyno and get WOT down with the most power, might want to log a street WOT run and see about how the car is running, if its a little rough, then decrease timing a tad, also adjust for other changes.
part throttle just get it at 14.6-15.2... play with timing
part throttle run 14.7 - 15.2
WOT pe mode run low rpm 12.5-12.6 then scale up to 12.9 or 13.2 at high rpms
dial in VE table and MAF table
if its a non-ls6 style or 00 and older car run around 27-28 degrees timing WOT up top with the fuel listed above
if its a ls6 or 01 or newer run 25-26 degrees timing WOT up top with the fuel listed above.
*each car is different and I have had differences between tuning cars. some liked less timing, some liked more fuel, some liked less. etc etc.
get on a dyno and get WOT down with the most power, might want to log a street WOT run and see about how the car is running, if its a little rough, then decrease timing a tad, also adjust for other changes.
part throttle just get it at 14.6-15.2... play with timing
