Denso or NGK? IW24 or BR8EIX?
Jun 16, 2004, 11:52 PM
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Denso or NGK? IW24 or BR8EIX?
I did a search and found that most people have been using the denso IW24 when they upgrade to a colder plug. NGK has an equivalant plug BR8EIX, but haven't heard any reviews on these plugs, Any reason why? IW24's are like $12 each while the BR8EIX is $7, Anyone out there running these NGK's? Tell me what you think about them.
Jun 17, 2004, 05:54 AM
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if you get the BR8EIX plugs make sure you get the "SOLID" version. If you get the standard screw on connection ends you will get arcing accross the bottom of them. I had this problem with one of my plugs and it was causing my car to bog down. when I pulled the plugs out you could see the carbon deposits on the base of the end.
Jun 17, 2004, 06:36 AM
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How many HP are you running. You really dont need a colder plug. I had the IW24 and it ran like crap. Swap them out with NGK Copper BPR7ES and it ran much better. Both gapped the same. I had soooo much carbo deposit on my Denso plugs. Plus the copper are way cheaper, 2 dollar a plug.
Jun 17, 2004, 09:49 AM
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When I first started to use the IW24's, I was getting some misfires, but the water injection seems to have cleaned up the combustion chamber a bit and now I love em.
Anyone want to buy 3 boxes of BPR7ES NGK's?
Joe
Anyone want to buy 3 boxes of BPR7ES NGK's?
Joe
Jun 17, 2004, 11:37 AM
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Originally Posted by EvoJimbo
How many HP are you running. You really dont need a colder plug. I had the IW24 and it ran like crap. Swap them out with NGK Copper BPR7ES and it ran much better. Both gapped the same. I had soooo much carbo deposit on my Denso plugs. Plus the copper are way cheaper, 2 dollar a plug.
Jun 17, 2004, 01:03 PM
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I would say stick to the NGK brand because of the tip design, the NGK tip sticks out more than the Denso tip and this is why I believe I had better luck at the same heat range with tuning/egt and knock. This was the only thing I could come up with and the only real difference between the two. I didn't notice a difference in testing the two plugs so this is the only thing I could come up with. Just my personal results, I don't have 400 hp either but I made the change to help with knock and summer weather. Just my opinion , hope it helps in your decision. 
Jun 17, 2004, 02:14 PM
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Originally Posted by GTVEVO
I would say stick to the NGK brand because of the tip design, the NGK tip sticks out more than the Denso tip and this is why I believe I had better luck at the same heat range with tuning/egt and knock. This was the only thing I could come up with and the only real difference between the two. I didn't notice a difference in testing the two plugs so this is the only thing I could come up with. Just my personal results, I don't have 400 hp either but I made the change to help with knock and summer weather. Just my opinion , hope it helps in your decision.
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