Turbo Apex missing issue solved

[DooAssassin]

In a older post I was having a issue with my sled missing during boost. Well it dosint miss anymore. I lowered the gap on my plugs to .018 from the stock gap.
At the same time I had the fuel pressure guage on and it ran 40-50 psi.
Im running at 12 psi and it revs at 10500, runs great.
Thanks for all the help.

 

[kviper]

Blowing the candles out at 12 psi? Weak COP?

 

[HURRICANE]

Good to hear that you got it figured out

 

[mulot30th]

wow, you have a wek ign system.

les hope for you this does not indicate another problem down the road.

now its time to go play with it

 

[DooAssassin]

Actually it was only one plug every time. So I must have one weak coil.

 

[HURRICANE]

be carefull replacing to much at this point.We have seen this many times on the dyno.Regap the plugs and they run well long term

 

[evil eagle]

Good to hear it was the plug gap. Back on Nov 20 when I told you about the same problem with my car. It took me a whole summer to figure it out.
Frustrating was'nt it.

 

[DooAssassin]

Yes I know, I overlooked the plug gap when I installed new plugs to fix this issue in the first place. Should have gaped them first.... Awell, it runs great now.

 

[mulot30th]

gap was how much before?

 

[DooAssassin]

it was .025!! .025-.018 made a world of a difference. crazy.

 

[mbarryracing]

When the fuel mixture in the combustion chamber gets denser, the resistance for the spark to jump the gap also goes up (harder to jump). Reason why at part throttle it runs fine but starts to misfire as soon as you experience the richer AFR's at WOT.
A few 1000ths is actually huge when it comes to that resistance.

 

[mulot30th]

okay 25 is way too much on boost.

20 is okay till 16-18 psi after that gap to 18