What Should My Plug Gap Be?

[Ninja gts25t]

if i have standard coil packs atm what gap should my spark plugs be and which 1's should i use?

standard turbo

pod

bov

fmic

bosch 044 running on premium 95

standard 7psi willing to change very soon

[SKYRYAN]

over nine thousand.

[Ninja gts25t]

9000?

[SKYRYAN]

No.

0.8

Where did you get 9000 from?

[Dani Boi]

9000?

Calm down Vegeta

You want BCPR6ES plugs dont get the ones with -11 on the end.

[Char]

mine always gapped to .8

Edited November 26, 2010 by Char

[PM-R33]

You want the largest gap that your ignition system will allow for the best burn.

If you develop a missfire you can gap them down (or buy pre gapped plugs) until the missfire stops. Or you can look at your ignition system and see whether it needs time for a replacement.

Standard maximum gap that spark plugs usually come in is a 1.1 gap represented by -11 on the end of the part number.

Most people run a 0.8 gap due to running high amounts of boost or having poor ignition systems.

[luvpsi]

You want the largest gap that your ignition system will allow for the best burn.

If you develop a missfire you can gap them down (or buy pre gapped plugs) until the missfire stops. Or you can look at your ignition system and see whether it needs time for a replacement.

Standard maximum gap that spark plugs usually come in is a 1.1 gap represented by -11 on the end of the part number.

Most people run a 0.8 gap due to running high amounts of boost or having poor ignition systems.

im running a microtech with 6 bosch coils and a x6 ignition module what should i use?

[PM-R33]

Depending on how much boost you are running I would try a 1.1 gap and see how you go.

For reference I run Splitfire coilpacks with 0.8 gap NGK plugs (7 heat range) and don't get a missfire with 20psi of boost and nitrous.

Once the plugs get a bit fouled up, then it will miss.

Hence I changed them every 5000km.

[alpinestars]

i always use ngk bcpr6es - stock code 2330

.8mm gap from memory

[The Bogan]

Stock boost 1.1, if you get it misfire at high rpm then go down .5 at a time till it doesnt misfire at high rpm.

I was running .8 at 15lb which seemed to work well, the bigger the gap the better so dont go smaller than needed.

There is a thread on plugs and gap size in the forced induction area.

Go copper and replace them every 5 000k, coppers are as cheap as chips.

The expensive ones are made to last along time but they give up performance after a while.

My 2 cents