Need Help, B18C High-comp spark plug GAP
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Joined: Feb 2009
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From: INA
Need Help, B18C High-comp spark plug GAP
hey all.... I wanna ask, how much spark plug gap I need???
this is specification of my engine, which is I thing it can support this topic :
Comp 12:1
Accel 300+ ignition n Coil
and last ist Toda B cam,
how much I need for the GAP???
n waht is the best plug I need? Iriduim? NGK or Denso?? or the other?
Because I seggest all of this can be gain my motor Power.. :D
thank u..
this is specification of my engine, which is I thing it can support this topic :
Comp 12:1
Accel 300+ ignition n Coil
and last ist Toda B cam,
how much I need for the GAP???
n waht is the best plug I need? Iriduim? NGK or Denso?? or the other?
Because I seggest all of this can be gain my motor Power.. :D
thank u..
Re: Need Help, B18C High-comp spark plug GAP
I use NGK BKR7E copper plugs, the 6097, but they seem to be hard to find now. I was told they are switching to a newer number. But start with a 7 heat range at .044". If you can afford the dyno tuning, gap them at different settings to check for gains.
Thread Starter
Honda-Tech Member
Joined: Feb 2009
Posts: 129
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From: INA
Re: Need Help, B18C High-comp spark plug GAP
Thread Starter
Honda-Tech Member
Joined: Feb 2009
Posts: 129
Likes: 1
From: INA
Re: Need Help, B18C High-comp spark plug GAP
why lower than stock (0.044)???
I've aup my comp.ratio, my cam, n my ignitioN??
I think it's mean I need more gap n my part can do that..
thx,
please tell me why u think like that....???? If I think ur statement is right.. I follow u....
I've aup my comp.ratio, my cam, n my ignitioN??
I think it's mean I need more gap n my part can do that..
thx,
please tell me why u think like that....???? If I think ur statement is right.. I follow u....
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From: Holiday, FL
Re: Need Help, B18C High-comp spark plug GAP
I'm running .040 gap on NGK BK7RE-11's with my LS/V which is 12.1:1. I used to run the NGK ZFR5F-11 on my previous LS motor (9.4:1). Since I gained roughly 45-50 extra BHP by going the LS VTEC route I gapped my plugs accorinding NGK's recommendations
http://www.ngksparkplugs.com/tech_su...p.asp?mode=nml
http://www.ngksparkplugs.com/tech_su...p.asp?mode=nml
Thread Starter
Honda-Tech Member
Joined: Feb 2009
Posts: 129
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From: INA
Re: Need Help, B18C High-comp spark plug GAP
How about this statement :
https://honda-tech.com/forums/all-motor-naturally-aspirated-44/how-build-%22reliable%22-lsvtec-b20vtec-1676914/
we dynoed a buddys 12:5to1 2.0 lsvtec with ported head jun3's and smsp header and with back to back dyno runs with no changes we changed the plug gap from .38 to .44 and then .35 and there was a difference of 5 whp opening the gap from .35 to .44. i'm not sure if something else came into play but ect and iat was around the same and so was everything else. he was running ngk 7's
Compression Spark Plug Gap
Up to 10.5:1: 0.050" - 0.060"
10.5:1 - 13.0:1: 0.040" - 0.050"
Above 13.0:1: 0.035" - 0.045"
Straight from msd themselves. It's just a start though. The bkr7es i think they are, its what the boost guys run, i had a set from that, and the gap was good for my 13:1 compression... just an fyi.
http://www.msdignition.com/pdf...s.pdf
page 3
Up to 10.5:1: 0.050" - 0.060"
10.5:1 - 13.0:1: 0.040" - 0.050"
Above 13.0:1: 0.035" - 0.045"
Straight from msd themselves. It's just a start though. The bkr7es i think they are, its what the boost guys run, i had a set from that, and the gap was good for my 13:1 compression... just an fyi.
http://www.msdignition.com/pdf...s.pdf
page 3
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Joined: Dec 2006
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From: Holiday, FL
Re: Need Help, B18C High-comp spark plug GAP
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