What kind of plugs should I consider running on b18a1 fully build ls planing to boost at least 15psi should I go with irridium plugs? reguliar coper? Heatrange 6 or 7??
Anything that has less than 500whp will do fine with the NGK 4644 (BKR7E).
I have been Tuning Hondas for about 10 years and I have found that these plug are the best for boost on B and D series motors. The insulator is a little farther up so the spark won’t blow out as easy and are designed for boost application from NGK
0 to 10 psi 7’s ngk 4091
10 to 18 psi 8’s ngk 5452
18 and up 9’s ngk 4989
how about bkr6eix-11 ngk 3764 these are iridium
i will be using msd 6al with blaster ss coil as well
[QUOTE=OHIO4DRDA;2197349]I have been Tuning Hondas for about 10 years and I have found that these plug are the best for boost on B and D series motors. The insulator is a little farther up so the spark won’t blow out as easy and are designed for boost application from NGK
0 to 10 psi 7’s ngk 4091
10 to 18 psi 8’s ngk 5452
18 and up 9’s ngk 4989[/QUOTE]
i actually wasnt able to find any of these do they have any other part#?
I’m tellin you man… 4644s.
This is correct and easiest to find. Gap the 4644’s to .025 for safest rage
With iridium there is an ongoing battle whether they are better, most test for hondas show a no go .
http://www.ngksparkplugs.com/products/racing/vpowerracing.asp?nav=16200&country=US
R5671A-7 R5671A-7
R5671A-8 R5671A-8 CORRECT NEW STOCK NUMBER IS 4554
R5671A-9 R5671A-9 CORRECT NEW STOCK NUMBER IS 5238
I gave the old stock numbers for the 8 and 9s sorry here are links for correct plugs and new stock numbers.
Stay away from Iridiums if your car did not originally come with them.
Also i have had issues in the past with MSD boxes so if you are having issues with spark check there first. Stock ignition is usually good till 500hp.
[QUOTE=OHIO4DRDA;2197514]http://www.ngksparkplugs.com/products/racing/vpowerracing.asp?nav=16200&country=US
R5671A-7 R5671A-7
R5671A-8 R5671A-8 CORRECT NEW STOCK NUMBER IS 4554
R5671A-9 R5671A-9 CORRECT NEW STOCK NUMBER IS 5238
I gave the old stock numbers for the 8 and 9s sorry here are links for correct plugs and new stock numbers.
Stay away from Iridiums if your car did not originally come with them.
Also i have had issues in the past with MSD boxes so if you are having issues with spark check there first. Stock ignition is usually good till 500hp.[/QUOTE]
what should i gap these things at?
I would start at .030 and go from there.
What is the difference between resistor and non resistor plugs???
[QUOTE=biessasss;2197410]how about bkr6eix-11 ngk 3764 these are iridium
i will be using msd 6al with blaster ss coil as well[/QUOTE]
you should be more than ok with these at lower boost, i’m running 1 step colder than those on my b18a the bkr7eix-11 gapped at .28 and like mentioned above, i’d stay away from the msd set up, it is a pain if you ever gotta do spark checks and stuff… without it that’s just one less thing you gotta worry about going bad… accel makes higher output internal coils for the obd1 distributors.
no point going with iridiums since you’re going to be changing your plugs at every oil change. and they say to not adjust the gap on these plugs which is a huge problem.
i used NGK BKR7E on my ls-t 300whp at 18psi and on my ls/vtec-t with about the same numbers. never had any ignition problems.
I was around 300whp and was using NGK BRR7E-11’s I belive. I tried a few different plugs and thats what I remember ending with.
^^^
I thought the B18A engine runs NGK BCPR5E-11 or 6/7 or whatever heat range and the later VTEC engines use the BKR6E-11?
Those might be the oem-spec part numbers… I’m simply saying that the BKR7E is a very good plug for any stock/NA/turbo motor pushing up to 500whp. You don’t ‘have’ to run the oem spec plug in order for it to burn correctly.
If you run 6’s you may get detonation, that’s why you need to run colder plugs.
Another vote for BKR7E plugs.
My car is making a bit over 400 and I’ve had 0 issues using 6’s
Well first, what do you mean by “fully built” Bkr7e should be good for around 300 or so whp. If any more than that I would go with an 8 heat range plug. On a previous setup I had 280 to the wheels and the bkr7e was already showing signs of very mild detonation. Although I was running 21 degrees of timing up top :o