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Timing Issue

  • Thread starter Thread starter SHOWTIME!!
  • Start date Start date Jul 4, 2008
S

SHOWTIME!!

New Member
May 14, 2008
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Jul 4, 2008
#1
  • Jul 4, 2008
  • #1
I have a 99 GT with a few bolt ons. I have a diablo sport predator programmer for it. We have the timing up as far as it will go. But when i do a live data log, it shows that the timing is about 39-41 cruising at low rpm, but when i hammer down on it the timing will stay at about 25. This doesnt seem like enough timing.
 

DBMSTNG

I fantasize about it being BIG!
Founding Member
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not quite here
Jul 4, 2008
#2
  • Jul 4, 2008
  • #2
timing depends on what RPM and load your at. you'll need to datalog a run and post that info.
 
D

darkside03gt

Member
Feb 19, 2007
851
8
18
Sacramento CA
Jul 4, 2008
#3
  • Jul 4, 2008
  • #3
are you getting detonation? it sounds like marbles or sand going down your exaust and the car wont have much power. if its not detonating I would leave it alone. I know people used to have detonation issues with diablos tunes a long time ago did you buy the tuner used?
 
S

SHOWTIME!!

New Member
May 14, 2008
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Jul 4, 2008
#4
  • Jul 4, 2008
  • #4
darkside03gt said:
are you getting detonation? it sounds like marbles or sand going down your exaust and the car wont have much power. if its not detonating I would leave it alone. I know people used to have detonation issues with diablos tunes a long time ago did you buy the tuner used?
Click to expand...

Yes i bought it used. It's not detonating at all. But im trying to get it run at it's full potential.
 
9

97speedster

New Member
Jan 16, 2007
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stanwood,wa
Jul 4, 2008
#5
  • Jul 4, 2008
  • #5
It sounds to me like you have advanced it too far through out the timing spectrum. I found this out the hard way and actually lost power due to it and motor was pinging really bad. My SCTX3 has 3 different RPM ranges for timing adjustment and I set mine to advance at 2* then 1* then no adjustment on the 3rd and it is definetly the sweet spot for mine. I had it first set at 4*, 4* and 2* and it pinged like crazy. Try it and see what happens.
 
D

darkside03gt

Member
Feb 19, 2007
851
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18
Sacramento CA
Jul 4, 2008
#6
  • Jul 4, 2008
  • #6
SHOWTIME!! said:
Yes i bought it used. It's not detonating at all. But im trying to get it run at it's full potential.
Click to expand...

if you really want it to run at it best you need a dyno tune. but as stated it sounds like you have gone too far. I would start back from square one.
 
S

SHOWTIME!!

New Member
May 14, 2008
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Jul 5, 2008
#7
  • Jul 5, 2008
  • #7
darkside03gt said:
if you really want it to run at it best you need a dyno tune. but as stated it sounds like you have gone too far. I would start back from square one.
Click to expand...

haha, if i had went to far the car would be pinging. The car is not pinging at all. The more i up the timing the better it runs, but ive run out of timing adjustment on the programmer
 
D

darkside03gt

Member
Feb 19, 2007
851
8
18
Sacramento CA
Jul 5, 2008
#8
  • Jul 5, 2008
  • #8
Hmmmm I thought that you had pulled alot of timing out. if your adding that much timing you have probably missed the mark so to speak
 
S

SHOWTIME!!

New Member
May 14, 2008
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Jul 5, 2008
#9
  • Jul 5, 2008
  • #9
so u think i need to start taking timing out of it?
 
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