sobaka__79

iTrader: (1)

Does anyone know how much the spark is advanced over the stock tune? In other words, what's the timing difference between the stock tune and the diablo performance tune?

I've been pulling about 3 degrees out of my performance tune on a 150 shot, which is -12% out of the spark. Should I be pulling more like 16 or 20% (a total of 5 degrees)?

I'm broke and trying to get away with spraying on 93 octane gas, I've sprayed my current timing on 104 wth no knock at all. I'm asuming I'm going to knock on 93
Who has a predator and sprays wet?

Please don't tell me to get a wideband, ls1edit, EFILive, go dry or do a search.

BLK02WS6

iTrader: (2)

Doesn't your Predator live monitor timing? Go out and do a WOT blast with someone watching the live data and see what it is reading. Then you can lower as required till you get it where you want it. I would run 24 degrees with 150 shot and 93 octane.

Now go do a search and get it tuned with a wideband, HP tuners and EFILive lol

sobaka__79

iTrader: (1)

I guess I was asking for that,

So I should spray and watch my spark. Then adjust my spark so that at 24* at WOT w/n20?

Is this correct?

Also I'm noticing that on 225 jetting my fuel pressure dips to about 37ish. Is this okay as long as the airfuel mix is correct?

BLK02WS6

iTrader: (2)

37# is too low - you need a fuel system upgrade if it is that low!!! And you you want set the timing before you spray it - not after!