hey, i have a built b16 turbo. ive had several issues with my setup. It has been professionally tuned(not by me).

issue 1- i am going through spark plugs reaaaally fast. I currently have an msd SCI box w/ blaster coil, cap, wires. I was told that my ignition was so hot that im actually burning the gap open in my spark plugs. I installed a new set of plugs 1 week ago at a gap of .022. after 1 week my gap was at .024. the last set of plugs i went through burned from .022 to .028 in 1 month. Im also showing signs of detonation on all pistons. piston 4 is the worst. i was told that the SCI box was most likely the cause of the issues.

issue 2- detonation. would the SCI box be causing my detonation?


thank you

 

Hi ?

 

sry bout that. i pressed enter after i put hey. its fixed lol

 

A properly installed msd system is not going to kill your plugs.

What is the motor setup (give all specs)...
What is it tuned on ?
Do you have a wideband oxygen sensor gauge in the car? If not get one...

 

b16a2 @ 81.5mm
darton sleeves
eagle rods
cp pistons

titanium valve springs and retainers
cam gears
brian crower stg 2 turbo cams

cosmetic head gasket
TB and IM

t3/t4 50trim @ 22psi

i do have a wideband in my car. under boost im high 10's low 11's
also have oil psg, egt, boost, water temp gauges.

it is tuned on ectune

 

What are your air fuel ratios at idle ?
What model plugs are you running ?

 

plugs are ngk 5671a-8 "4554" non projected

a/f at idle is in the low 15's high 14's
at cold start its high 12's low 13's

 

Everything sounds right on.. what kind of fuel is in the car??

 

93octane

under boost my a/f is low 11's high 10's.

 

Isnt it true, that with a MSD system, you can increase your gap?

 

i started out with a gap at .028 and within 1 month i started having misfire issues at high boost becuase the spark was blowing out.
when i pulled the plugs the gap was at .032

 

MSD are junk, take the crap off and put stock components back on.

 

werd

 

SCI box is removed. everything is running great.