Someone here can list the main reasons why my b18b under 9psi with timing retarded to max and 94 octane is still PINKING ? (or Pinging?). Stock plugs, WOT at 3500 and dm450cc with Uberdata

I will check to see the options available for me in order to solve the problems...

Many thanks

 

Whats your air/fuel ratio under boost?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mz3bo &raquo;</TD></TR><TR><TD CLASS="quote">Someone here can list the main reasons why my b18b under 9psi with timing retarded to max and 94 octane is still PINKING ? (or Pinging?). Stock plugs, WOT at 3500 and dm450cc with Uberdata

I will check to see the options available for me in order to solve the problems...

Many thanks
</TD></TR></TABLE>

Are you sure it's pinging? How many degrees of retard do you have, 5-9 or so?

 

you need wideband tuning. all the injectors in the world wont help if they aren't opening.

 

This car has serious pinking.

 

lol someone had to say it.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mz3bo &raquo;</TD></TR><TR><TD CLASS="quote">Stock plugs</TD></TR></TABLE>

Thats why. Go two stages colder and gap them at .28.

 

well ......

 

i dunno about two stages colder, but at least one.

 

Yeah I would def do at least one stop and the .28-.30 should be a good gap for them.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mz3bo &raquo;</TD></TR><TR><TD CLASS="quote">Someone here can list the main reasons why my b18b under 9psi with timing retarded to max and 94 octane is still PINKING ? (or Pinging?). Stock plugs, WOT at 3500 and dm450cc with Uberdata

I will check to see the options available for me in order to solve the problems...

Many thanks
</TD></TR></TABLE>


Why do you have your base timing retarded to the max if you are using a standalone?

Have you upgraded your fuel pump?

Have you tuned at all with uberdata or are you driving around on a basemap, what does your timing map look like, how much totoal timing are you running?

 

my car did the same thing. gap the plugs to .28 and you'll be fine. u dont need the colder plugs. but it would help but not necessary

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by boostedej1 &raquo;</TD></TR><TR><TD CLASS="quote">my car did the same thing. gap the plugs to .28 and you'll be fine. u dont need the colder plugs. but it would help but not necessary</TD></TR></TABLE>

This is the same that I have mine gapped at.. But im running 2 steps colder plugs..

 

Look at my sig and then say it with me...

two stages colder

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tony Starks &raquo;</TD></TR><TR><TD CLASS="quote">Look at my sig and then say it with me...

two stages colder</TD></TR></TABLE>

Agreed.. Look at my 1/4's, Gotta get to the dyno to get numbers though..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves &raquo;</TD></TR><TR><TD CLASS="quote">

Agreed.. Look at my 1/4's, Gotta get to the dyno to get numbers though..</TD></TR></TABLE>

Thats an awesome time for a boosted Y7.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by tgreaves &raquo;</TD></TR><TR><TD CLASS="quote">

Agreed.. Look at my 1/4's, Gotta get to the dyno to get numbers though..</TD></TR></TABLE>

I'm threadjacking because the original author hasn't written back yet.

Why 2 steps colder? At what point do you decide to go from 1 step to 2 steps? A lot of people are running 1 step colder (BKR7E for instance)

-Chris

 

At 9psi I would run one step colder, especially considering the amount of control you have over your timing and fuel. I always thought that you want to run the warmest plug you can without detonation. Similiar to the idea that you want to run the largest gap you can without having miss-fire.

 

Sounds to me that he is having detonation problems. DO ME A FAVOR AND GO TWO STAGES COLDER. Then come back and tell me if you still hear detonation. I'm done with this.