|
|
|
|
| Author |
|
|
Registered
Join Date: Aug 2009
Posts: 10
|
2.7 spark plugs
what would be reccomended plug if you are running ignitor and 45k msd coil. i know it's gonna be bigger gap, but what plug with what gap would be right.
|
||
09-01-2009, 06:33 PM
|
|
|
Registered
Join Date: Aug 2009
Posts: 10
|
any recommendations? seriously I am wanting to get new plugs tonite to get it running in top shape and take advantage of this high output coil.
|
||
|
09-01-2009, 08:32 PM
|
|
|
Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
|
it is best to use as cold a plug as you can that does not foul. i use the NGK BPR7's in my 2.7 or bosch W5's. use the copper plugs. i have used the W4, a colder plug that did not foul, but it was not as clean as the W5. ( the hotter plug cleans itself better). i also have an MSD 6AL unit. gap, i have tried from 45-60, could not tell any difference. if the engine is stock, i dont think any of this is an improvement unless it is replacing something that was bad. porsche already got all they could out of the ignition for a stock motor.
__________________
86 930 94kmiles [_  _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
||
|
09-02-2009, 04:32 AM
|
|
|
Registered
Join Date: Jan 2006
Location: Santa Barbara, CA
Posts: 2,307
|
Amen. As cold as won't foul. Try the 7's and if you have fouling trouble (more likely with light use on cold days than in the heat of summer) go to the 6's. The NGK has a nice simple guide to "reading" spark plugs which I find very useful. And don't waste time with gaps...without a dyno I don't think you'll see a difference. I run mine at .032" right from the factory.
__________________
jhtaylor santa barbara 74 911 coupe. 2.7 motor by Schneider Auto Santa Barbara. Case blueprinted, shuffle-pinned, boat-tailed by Competition Engineering. Elgin mod-S cams. J&E 9.5's. PMO's. 73 Targa (gone but not forgotten) |
||
|
09-02-2009, 08:46 AM
|
|
|
Registered
Join Date: Oct 2006
Location: MYR S.C.
Posts: 17,321
|
if you do a lot of idleing, use hotter, like 6, NGK6 and bosch 6 are the same. highway driving use 7 or W5. i run my car rich and it is fine with the 7's. i drove my car to nashville with W4's in it and from the highway driving they looked very clean and like new, dirving around town on W4's they were black, but still did not foul even though they were used, out of a 930, when i put them in.
__________________
86 930 94kmiles [_ _] RUNNING:[__] NOT RUNNING: ____77 911S widebody: SOLD88 BMW 325is 200K+ SOLD 03 BMW 330CI 220K:: [_ _] RUNNING: [__] NOT RUNNING:01 suburban 330K:: [_ _] RUNNING: [__] NOT RUNNING:RACE CAR:: sold |
||
|
09-03-2009, 04:27 AM
|
|
|
Registered
Join Date: Aug 2009
Posts: 10
|
i do a lot of highway driving and I am running more voltage than stock ignition, so I know I need bigger gap. I think I have my question answered now though. thanks for the help. I know my plugs are about gone right now.
|
||
|
09-03-2009, 06:03 AM
|
|
|
