Is there an "accelerator pump" table?
Sorry that was the only way I could think to describe this. I am working on tuning my Trans Am with a 416 D1 procharger using CO#3 OLSD and I get a large lean spike when I first accelerate, it is enough to feel, and seems to be at every RPM. I am still set up doing auto VE, but I don't recall this happening last time I tuned it? Feels like a carb with no accelerator pump. Any ideas?
98 WS6, M6, 02 PCM, CO3, SD 2 Bar tune, 416 D1SC Procharger, 73# Injectors, Patriot Lq9 heads, 232 int 240 exh. Lift .595 int .608 exh 115.. header, Intake, AEM WB.
what do you have for fuel system? if it's non-return, i've seen a slight delay in fuel delivery, converting to return style usually cures it.
I have the stock 98 f-body set up with a racetronix pump and hot wire kit
98 WS6, M6, 02 PCM, CO3, SD 2 Bar tune, 416 D1SC Procharger, 73# Injectors, Patriot Lq9 heads, 232 int 240 exh. Lift .595 int .608 exh 115.. header, Intake, AEM WB.
I think you are describing the Transient Fueling tables that EFILive doesnt have done for the LS1 PCMs yet. The E38/E67 ones are in the tunes though, looks like they'll really help fix your problem when they are released for the LS1s.
~Erik~
2013 Sonic RS Manual - 1.4L I4T E78, tuned, turbo mods, etc.
2008 TrailBlazer SS 3SS AWD Summit White - LS2 E67/T42, bolt ons, suspension, etc.
2002 Chevy TrailBlazer LT 4X4 Summit White - 4.2L I6 P10, lifted, wheels, etc.
I will be waiting.......
98 WS6, M6, 02 PCM, CO3, SD 2 Bar tune, 416 D1SC Procharger, 73# Injectors, Patriot Lq9 heads, 232 int 240 exh. Lift .595 int .608 exh 115.. header, Intake, AEM WB.
Yeah....take a number and wait in line. Lol!
We're still waiting/hoping Ross will have this done some time in the not too distant future.
I get the same thing as does Justin as does pretty much everyone running a blower from what I've heard.
Hey Ross/Paul....how far off are the LS1 transient tables???? Please?????????
I think this pic shows the issue you describe!
Last edited by hquick; July 17th, 2008 at 08:46 AM.
Howard
YOU ONLY NEED TWO TOOLS IN LIFE - WD-40 AND DUCT TAPE. IF IT DOESN'T
MOVE AND SHOULD, USE THE WD-40. IF IT SHOULDN'T MOVE AND DOES, USE THE
DUCT TAPE.
IF YOU CAN'T FIX IT WITH A HAMMER, YOU'VE GOT AN ELECTRICAL PROBLEM.
98 K1500 'HOLDEN' Suburban.
Custom Whipple SC, Mercruiser Marine intake, 0411 PCM, 4L80E w/shift kit
That is pretty much it, am I making boost faster than PCM can compensate? If I add a smaller pulley will it get worse?
98 WS6, M6, 02 PCM, CO3, SD 2 Bar tune, 416 D1SC Procharger, 73# Injectors, Patriot Lq9 heads, 232 int 240 exh. Lift .595 int .608 exh 115.. header, Intake, AEM WB.
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