[S58King]

Would it be okay to run .022 gapped one step colder spark plugs if I’m running a jb4 with fbo and not a real tune? Feedback is appreciated

[tarrant64]

One of those things that will have to be tried out to see if the experience is worth it for you.

Generally - larger the gap the better MPG and efficiency. That said, once you start getting into higher boost demands - which the JB4 would count for - you want a tighter gap.

Shouldn't hurt anything. If you start feeling what you think is a misfire or something re-check your gaps or go back to stock gap.

[S58King]

Originally Posted by tarrant64

One of those things that will have to be tried out to see if the experience is worth it for you.

Generally - larger the gap the better MPG and efficiency. That said, once you start getting into higher boost demands - which the JB4 would count for - you want a tighter gap.

Shouldn't hurt anything. If you start feeling what you think is a misfire or something re-check your gaps or go back to stock gap.

Thank you so much for the response brother

[kuzdu]

Originally Posted by AlphineW_M340i

Would it be okay to run .022 gapped one step colder spark plugs if I’m running a jb4 with fbo and not a real tune? Feedback is appreciated

So I got jb4 running map 5 and i change my plugs to ngk and gapped .022, made the world of difference very smooth power now.

[S58King]

Originally Posted by kuzdu

So I got jb4 running map 5 and i change my plugs to ngk and gapped .022, made the world of difference very smooth power now.

Ugh great to hear brother I love when fellow g20s comment for the situation from their point of view I appreciate it

[kuzdu]

Originally Posted by AlphineW_M340i

Ugh great to hear brother I love when fellow g20s comment for the situation from their point of view I appreciate it

I actually have an M240, runs like a beast omg lol but the plugs shouldn't harm your engine. gap them all to .022 and give map 5 a run with some E40 blend and you let me know if you have any neck pains after that from the torque lol

[S58King]

Originally Posted by kuzdu

I actually have an M240, runs like a beast omg lol but the plugs shouldn't harm your engine. gap them all to .022 and give map 5 a run with some E40 blend and you let me know if you have any neck pains after that from the torque lol

You don’t think running more E with stock pumps would damage anything?

[kuzdu]

Originally Posted by AlphineW_M340i

You don’t think running more E with stock pumps would damage anything?

i upgraded my pump to the one you guys have on the 340 and supra so im good to go

[S58King]

Originally Posted by kuzdu

i upgraded my pump to the one you guys have on the 340 and supra so im good to go

Wait so would it be fine to run e40 in my g20?

[kuzdu]

Originally Posted by AlphineW_M340i

Wait so would it be fine to run e40 in my g20?

as long as your tune supports it. weather you flash with an E40+ map or on JB4 yup it can handle it. so far all my logs have been clean, im hitting around 22-23 lbs of boost at wot it's killer

[Antec800]

If your on stock tune putting some e85 with 93-94 won’t benefit anything it will with 91 though in hotter weather benefit in timing. If you have a flash or jb4 e85 is safe up to e40 and beneficial