4agte spark plugs

[HKS 16T]

Hi all
just checking out whats the best spark plugs to run on my 4agte

cheers Chris

[legend]

i like ngk have been great plugs with only 1 failure "so far" with the 4agte u could run a slightly colder plug depending how u drive it

[Cuzzo]

i run the standard ae92 recommended plug from ngk up one heat range to 7

gapped to .7

[fixeruperer]

i use ngk bcpr6es.

[cri_ag]

from memory i use bcpr7es, gapped to 0.8mm. they are fired by LS1 coils.

[30psi 4agte]

Im using NGK's In the 7 range and out to 9 depending on what im doing / fuel im running etc.

gapped at 1.1mm

[Casey-G]

i use NGK's in the 7 range .7 gap



but..

Im using NGK's In the 7 range and out to 9 depending on what im doing / fuel im running etc.

gapped at 1.1mm

Your using those MSD coils with built in ignitors i take it? or something similar.


Would you be willing to supply some info on them like if you had any problems with them or not ect?


My gze daily is getting new coils and computer, and at this stage ill be going with the msd units. Just curious to know of any problems/issues using them.

thanks

case

[feral4mr2]

i like the v-grooves. BCPR7EY i gap at 0.8mm. stock ignition.

[YLD-16L]

from memory i use bcpr7es, gapped to 0.8mm.

I run the same and same gap. No problem with spark up to about 22psi.

[Grippy]

i use ngk bcpr6es.

I run the same, no issues, EMS ignition,

[HKS 16T]

i have autronic SMC with a HKS spark amp
thanks for you imput guys

[Talasas]

BCPR7ES-11, stock ignition, only ever had it up to 12psi at the time. Planning on still using the same ones for new setup with more boost.

[Twisty92]

As far as i know silver is the best conductor of electricity and then copper, so i'd go with a silver plug to suit with the right gap. Just don't go platnum or iridium

[Casey-G]

plat and iridium are worth more because they last a lot longer than copper ones, you are correct that silver plugs conduct better. ideally gold would be the best but i doubt anyone makes them.


Really nothing wrong with copper plugs, you should pull them out and at least check/regap them when you service it so, cant beat em really. You wouldnt notice any difference even on a dyno unless under extremly well monitored conditions, with a highly tuned engine me thinks.