All cars are different. Unless you hook your car up to a wideband, I wouldn't mess with the fuel settings, otherwise you are shooting in the dark. Unless you've made modifications to the fuel system itself (MAF, injectors, etc) The EEC will do a fairly good job keeping it in range under WOT. Once you hook it up to a wideband you can dial it in closer.340.29m/s said:Has anyone else had a dyno while using the predator? I have a feeling that adding fuel down low is ok but up top people will be running extremely rich.
jstreet0204 said:All cars are different. Unless you hook your car up to a wideband, I wouldn't mess with the fuel settings, otherwise you are shooting in the dark. Unless you've made modifications to the fuel system itself (MAF, injectors, etc) The EEC will do a fairly good job keeping it in range under WOT. Once you hook it up to a wideband you can dial it in closer.
DeathMetal said:Also, after installing the tune, I noticed my car Idles around 500 rpms, is this normal? I never really payed attention to what the idle was before. The engine noise at idle also isn't smooth, seems to fluctuate a bit.
DeathMetal said:I'm running the stock diablo tune, what octane should I use with that? I'm using 93 right now, but noticed it said to use 91 in the manual..
Yes, that is generally the procedure. Tuners often adjust the timing to the point that pinging just vanishes, and then back it off another degree.DeathMetal said:About the spark advance setting.. should I raise this as high as possible without pinging? I have it at +4 low and high and my engine doesn't ping yet with 93 octane.
3.8L_of_Pain said:BTW, I posed this question to Diablosport. They said the Predator is provided with a default performance tune and changing fuel and timing was not necessary. Although I am very happy with the Predator, I was not satisfied with this response.
3.8L_of_Pain said:triggz, looking at your dyno graph, what values for fuel did you put in the Predator for your pull that had the richer A/F ratio?
...I'm with you there triggz. It would be nice knowing for sure if 4% advanced is the same as 4* advanced like with the Steeda T/A. Even more so, how much is the timing advanced by Diablo when the Sport tune is installed. I imagine it has been advanced, just how much is the question. It certainly doesn't make sense to run the factory 10* timing and call it a Sport tune, same goes for the fuel adjustments. I’m curious because I’m using what I guess would be called the standard Sport tune from Diablo. I ordered from partshopper and either failed to fill out a form for my current mods, or there wasn’t one to fill out. So, it’s the Sport tune right out of the box for my make and model year.triggz said:The richer A/F is stock.
My timing as advanced 6% currently, no pinging on 93. I would like to find out what these percentages equate to in degrees..
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