Predator timing question
Thread Starter
Teching In
Joined: Jun 2002
Posts: 29
Likes: 0
From: Houston,Tx. US
Predator timing question I recently installed the Predator base tune on my car and only modified the transmission parameters. I watched the data at WOT thru a 2nd gear pull. Nothing looked to strange,but the timing maxed out at 24. This seems to be way to low. Could this low number be due to doing the pull through 2nd gear and not 3rd,or is the predator scanner just to slow? BTW, 0 knock retard.
That is low, on mine with the timing jacked full
forward I get -barely- to 30.0 at 6050RPM on
EFILive logs and I've seen 29s on the Predator
display.
Putting the +10% timing adjustment will push
yours up to about 27. What accounts for the
low present timing I don't know, it might be
some knock history put you down into the
low octane end of the timing table or something.
At 30 peak timing I do get some occasional ping,
and have to choose my gas stations carefully.
More PE would cover it better but makes things
too fat. Just go with the +10% setting and the
amount of PE (+ or -) that keeps you just a
little more than barely out of KR "blips" on shifts
etc.
Also, set those fans, engine too hot might pull a
little timing. The FRA mod might also be giving you
warm air when sitting; the IAT soaks and takes a
while to track any "rolling air temp". What does the
display show for coolant temps and IAT? IAT more
than (say) outside + 5 degrees has room for
improvement. Coolant should be rock solid 194-197F.
forward I get -barely- to 30.0 at 6050RPM on
EFILive logs and I've seen 29s on the Predator
display.
Putting the +10% timing adjustment will push
yours up to about 27. What accounts for the
low present timing I don't know, it might be
some knock history put you down into the
low octane end of the timing table or something.
At 30 peak timing I do get some occasional ping,
and have to choose my gas stations carefully.
More PE would cover it better but makes things
too fat. Just go with the +10% setting and the
amount of PE (+ or -) that keeps you just a
little more than barely out of KR "blips" on shifts
etc.
Also, set those fans, engine too hot might pull a
little timing. The FRA mod might also be giving you
warm air when sitting; the IAT soaks and takes a
while to track any "rolling air temp". What does the
display show for coolant temps and IAT? IAT more
than (say) outside + 5 degrees has room for
improvement. Coolant should be rock solid 194-197F.
Thread Starter
Teching In
Joined: Jun 2002
Posts: 29
Likes: 0
From: Houston,Tx. US
Thanks for the reply. My coolant temp is at 180 degrees(160thermo).I do
notice that when I first romp the gas when I change anything with the
predator, the engine pings the first few times then goes away. Also yes,the IAT temp will quickly get to 130 sitting and drop quickly as I accelerate.
notice that when I first romp the gas when I change anything with the
predator, the engine pings the first few times then goes away. Also yes,the IAT temp will quickly get to 130 sitting and drop quickly as I accelerate.
What jimmy says is correct (as usual). I normally run about 27*. But the last time I dynoed I was getting 3* of KR, and the highest timing I registered was 24*, even after getting rid of the KR. So it may take a while to clear. As a side note, I have monitored a few stock cars (i.e. no tuner) & they tend to run about 17*.
