LS12Fast4U

iTrader: (1)

Hey guys i just picked up my Diablo Predator today and i was wondering if i should modify any of the parameters and then start logging. My mods so far are Pacesetter LT headers, high flow cats with X pipe, K&N CAI, BBK 80mm TB. I was wondering with the mods if im going to need to add more fuel and timing.

Thanks for your help.

06MonteSS

do some logging... that will show you where your average LTFT's are and what you need to adjust your injector slope to in order to get the ltft's dialed in to the proper range of 0 to -2...

http://diablosport.com/index.php?nam...iewtopic&t=917

LS12Fast4U

iTrader: (1)

So to do the LTFT do i just take the average number it is at that rpm and then what? Also what if there is KR?

06MonteSS

did you buy the predator brand new? what revision is on it? when it boots up and is at the main menu, there's a number at the top of the screen... that's the revision number... what is it?

if it's a newer 9rXX revision, you can record/save data logs and connect to your PC to download them with diablo's DataViewer app.

if it's an older 2.XX revision, you can NOT record/save data logs, and can only view the data live on the predator screen while you drive.

do a steady drive/cruise on the highway, so that your rpms are between 1800-2000...

at the end, take the average of the ltft's... then adjust your injector slope the opposite amount...

the info on how to do it all is at that link I provided above...

and if you want, I can even take a look at the log files for ya, provided you have a newer one that can save the data logs.

LS12Fast4U

iTrader: (1)

I have the new version of it because i can log the data and then go back and review it or graph it. Im going to graph it on my way to work this morning.

LS12Fast4U

iTrader: (1)

Also i dont have the adapter to hook it up to my computer. Any suggestions?

Mike@Diablosport

iTrader: (2)

Simple 12V 1 amp power supply (actually anything from 9-12V and 600-1500ma is fine), center tip is positive.

LS12Fast4U

iTrader: (1)

I did some freeway driving at about 65 my rpm was about 1800 ish. The LTFR seemed to settle at about 11.5. How do I get that down where it should be?

Mike@Diablosport

iTrader: (2)

http://diablosport.com/index.php?nam...iewtopic&t=917

06MonteSS

and besides the power adapter Mike mentioned above, you also need a usb-serial cable in order to actually hook up the predator to your Windows PC...


if your ltft's averaged 11.5, modify the diablo tune you have installed and adjust the injector slope to -12%...

LS12Fast4U

iTrader: (1)

What should my spark be at for my Ltfr? It steadys out around 33.

LS12Fast4U

iTrader: (1)

No one knows what my timing should be?

Mike@Diablosport

iTrader: (2)

Thats not something to be concerned with, part throttle timing is not adjusted in the canned tunes.

LS12Fast4U

iTrader: (1)

What about my wot runs

LS12Fast4U

iTrader: (1)

Okay so I have my ltfr dialed in but on my wot runs I'm getting a little bit of KR. How do I fix that?

06MonteSS

well, you can try adding some fuel in the rpm range where you're getting the KR, or you can pull some timing...

what's your AFR at WOT??

LS12Fast4U

iTrader: (1)

Which do you recommend doing