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E85 plugs for 15psi boost

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Old Feb 17, 2012 | 06:48 AM
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Default E85 plugs for 15psi boost

Been researching and appears 20+lbs boost that 7 and up are better/safer plug to go with. Haven't seen much of what guys are running that are at 15lbs.
For those running 15psi give or take a pound, i'd like to know your observations on the plugs you are using, ie timing, boost amount, CR, fouling, etc...and anything you feel is pertinent.
Thanks in advance.
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Old Feb 17, 2012 | 07:45 AM
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i'd still run the br7ef's
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Old Feb 17, 2012 | 10:02 AM
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Originally Posted by AutomagicLS1
i'd still run the br7ef's
What gap are you running?
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Old Feb 17, 2012 | 01:33 PM
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Originally Posted by AutomagicLS1
i'd still run the br7ef's
+1 on that. I have had no complaints running those @.025"
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Old Feb 17, 2012 | 02:57 PM
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Originally Posted by maxgee
What gap are you running?
run them out of the box. will be fine
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Old Feb 17, 2012 | 04:09 PM
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15psi E85 in Las Vegas heat I run TR6's, on 91 or 100 oct, TR7's. .024 gap.
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Old Feb 18, 2012 | 05:31 AM
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Got some last night and gapped them at .029
Running 13.7psi seems to run smoother under part throttle conditions.
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Old Feb 18, 2012 | 08:22 AM
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the only problem is the br7's will foul very easily when running e85 atleast, i had a fresh set in a twin turbo transam and a couple of rough starts dialing it in with some rich idleing and some rich wot pulls and they were toast, car ran a little crappy and would get a little spark blow out under wot..

so just an fyi, you might wanna put a fresh set in once you get your idle and cruising afr dialed in
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Old Feb 18, 2012 | 08:39 AM
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Originally Posted by camaro383
the only problem is the br7's will foul very easily when running e85 atleast, i had a fresh set in a twin turbo transam and a couple of rough starts dialing it in with some rich idleing and some rich wot pulls and they were toast, car ran a little crappy and would get a little spark blow out under wot..

so just an fyi, you might wanna put a fresh set in once you get your idle and cruising afr dialed in
I run 9's in my car and had 10's in at one point they idled just fine on e85 with 160lb injectors
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