dewmanshu

iTrader: (4)

62#'s at WOT through the shifts. well, at the track on the 6th it was. I haven't paid attention to it lately.

dewmanshu

iTrader: (4)

Looks like I can move this to a different section. 2/3 shift goes from 60#'s to 57#'s. Nothing horrible, but disasterous if tuned at 62#'s.

I was talking to XLR8NSS about it and I noticed my IDC was at 88%. That's aweful high for these inj's. They should be good to 900hp on this return system. 88% is what 790-800 HP. No special math there just referencing idc to hp ratio. Just as a troubleshooting tool. So it has to be something mechanical, like fuel pressure. I am on my 3rd inline and 2nd in tank btw. DAMMITT!!!

Holty

iTrader: (6)

so what is the cause of this 88% IDC? maybe find the cause of that and will find the cause of the lean spike?

dewmanshu

iTrader: (4)

That's what I am saying...I keep adding fuel via VE table. So trying to fix what seems now to be a mechanical problem with extra fuel, I am commanding too much fuel. (IDC of 88%)

That high IDC is what got me thinking it can't be fueling calcs, the tables are wrong only because I was trying to fix a mechanical problem all along. So IDC problem is me...adding too much fuel to fix low fuel pressure.

Moral of the story, tuning ve table with bad fuel pressure sucks.

XLR8NSS

iTrader: (4)

Voltage booster for WOT maybe?

dewmanshu

iTrader: (4)

Hmmm...maybe. I don't know..plenty of guys with SSS' pushing into my power range and not running out of fuel, on 42's at that. I didn't have this issue with the 42's, i don't think. LMAO Just 110% IDC

dc_justin

iTrader: (13)

Looks like you may potentially need a new fuel pump or more flow, especially if you're losing pressure. What's your pressure differential at these days? Should drop it back to 58 if it's off.

Your PCM *thinks* more fuel is going in than actually is. This is apparent by the 1.73g/cyl that is being calculated. With your mods, I'd really expect this number to be in the 1.3-1.4 range.

dewmanshu

iTrader: (4)

yeah justin another thing in comparison I noticed was the g/cyl. Notice in the first pic I posted, it's 1.5x and the second pic is what you are saying 1.73. The second pic was before any real tuning of the inj swap. Sooooo the 1.5 is probably more of a realistic error. LOL Realistic error...If there's such a thing.

I don't know, when the pumps usually go bad, they just go bad. Not lose a little pressure. I may crank the pressure up a little. Just a tad on the fpr.

Holty

iTrader: (6)

Don't mean to "red light" on ya dewey, but if this is what your inline pump power wire looks line, you probably found your lean spike cause.

picture from dewey's camera phone:

dewmanshu

iTrader: (4)

I replaced it and the pump is quiet now as well. I have new inline on the way.