lol - me tooOriginally Posted by Doc
I'm thinking the idle timing has to be raised alot.Probly 20-26degree's total.That would smooth out idle and affect startup.
Agreed, I found best kpa (ie highest vacuum) on stock engine with around 28deg at idle. Stock was around 20.
Apparently "The goal with any idle setting is a "lean-best" setting - that is, the leanest possible ratio yeilds the maximum idle vacuum while maintaining the rpm set point." That from a ford tuning site. If you search for "lean best idle" you will see plenty of links.
Basically you can use bidirectional controls to adjust timing to the best vacuum point. For me it was the difference of 35kpa to 30kpa. Instant consumption dropped 5-10% according to the onboard computer too.
I also dropped my idle to 635 rpm.
Get EFILive in europe (http://www.efilive.eu).
2007 Escalade ESV L92 6.2L VVT.
2014 VF SV LS3 Maloo.
ahh I see now.. thanks!!
1992 Turbo LSX Notchback Mustang 275 radial car - under construction
2008 Sierra 2500HD Duramax
Great information !
edit: So, will increasing timing at idle help with big cam surge and/or stalling?
Last edited by NOSjohn; March 29th, 2006 at 08:13 AM.
John C.
MicroZone Computer
www.microzone.us
www.Z06shop.com
LS7 Gallery - put up your pics of CARS!
'01 2500HD 4x4 6.0 - stock.
'00 FRC - 1 of 2000, Halltech, Predator, etc.
'87 Turbo-T - 6.0L/PT-72.
'82 Monte - Twin Turbo.
The bi-di controls rock for smoothing out big cam idle. I played with mine for a while, updated the flash, and now my 238/240 .605/.609 112+2 cam purrs like a kitten at 900 RPM. It actually sounds smaller than the ever popular 224/224 cams with a "typical" tune.
TAQuickness, I set mine up and had a little problem.. in the column with "Ingear" what is the PID used for this?Originally Posted by TAQuickness
I have RAFIG for data and ETC for rows.
1992 Turbo LSX Notchback Mustang 275 radial car - under construction
2008 Sierra 2500HD Duramax
Any ideas?
1992 Turbo LSX Notchback Mustang 275 radial car - under construction
2008 Sierra 2500HD Duramax
I was following this thread trying to run a somtimes hot start stall on a 224 cam LS6. I think we need more idle air.
When logging RAFIPN can someone show me the MAP setup?
Have the PID loaded and supported but can't figure out, after an embarrasing number of hours how to display the RAFIPN data or MAP.
Thanks,
Bruce
Meltn@new.rr.com
2000 C5 Coupe, 6M, Callies/Mahle stroked LS7 (441), Blackwing, Halltech, LS3 intake, 90mm Shaner TB, ported L92 heads, FAST 50# inj, not too much cam, Kooks 1 7/8" headers , 3" catless mid pipes, Z TIs, track suspension, , 3:90 rear, EFI V2, LM-2, etc.
PowrMax Performance
100 mm PowrMAF
LM-2 EFILIve package with TAQ -sLM2 V-2 serial cable> Package deals
you will want to copy all the temperature values from B4307 as the rows in your map, and make the column heading Park/Neutral. Row and column parameter will be ECT, and your data parameter will be RAFPN. Be mindful of your units