E3 Spark plugs with Diamond Fire Technology

[EGOKILR]

Just wondering has anyone on this forum tried these new spark plugs, whether TurboBuick or on another car. Im trying to see if its worth the money or not, and does it really improve start up, fuel effieciency and response.

 

[Turbo Indian]

stick with the cheap CR43TS ac delco for the buick.

 

[turbo nasty]

Yeah for some reason the gimmick plugs are no different in these cars. NGK(not irdium) and Autolites are my choice brand wise

 

[boostingbuick]

I am running the Autolites irdium plugs. I was leary but have worked out. Ran low 11 at 126 with them.

 

[turbojd]

My car likes the AC Delco CR43TS and Autolite 24's which I have in it now, tried those split-fire plugs years ago and the car misfired and started running like crap.

 

[fc227]

I run the autolite 24's.

 

[EGOKILR]

I usually stick with the AC Delcos

but recently went with the NGKs, I am just wondering has anyone tried them and their experience with them. I use to have a 87 Monte Carlo and everyone swore by the AC Delco's and that is what I currently have in my El Camino right now, but it has a worked 350. I tried the platinum plugs for my 305 and there was no way I was going back to the AC Delco's. The car started better, and had smoother accelceration. I could just feel the difference. My thing is since the Turbobuicks run high boost levels and hotwire kits, MSD etc, maybe the colder plug just works better.

 

[turbojd]

A heat range colder on the GN's helps suppress detonation at higher than stock boost levels. I would use 2 heat ranges colder if running over 20 lbs. of boost.

 

[Dave H]

For what it's worth, we did some independent testing years ago of the E3 plugs, some investers wanted proof of the claims before investing in the company (I own a dyno shop in Jacksonville, FL).

On a 99 Tahoe 5.7 they made measurable more power than the delco dbl plat. and the Bosch plats. The mileage tests didn't show much difference, and the emmissions tests went in favor of the E3's. Long term testing showed some driveablitly issues in some vehicles with the E3's in them after about a year (in a nissan truck). We tried them in a SCCA car, and had problems with them. Put ngk back in, and everything cleared up.

We did not try them in any forced induction car, or N2O cars.

 

[VadersV6]

My car has consistently showed less knock with a hotter plug...not as in hotter than stock, but rather 1 step colder, or the factory recommended heat range, but never 2 ranges colder. 2 ranges actually created more knock issues.
Ive tried a million different plugs and right now Im running autolite platinum plus plugs. They have a positive electrode thats smaller than the denso iridiums. basically you get a really strong focused spark that cant blow out. I found that with the autolite double platinums and these platinum plus's, I can run a gap of around .038-.040 with no blowout, and it runs so much better all around with a big gap than a tight one. I could never run a big gap with AC's or any other crappy copper plug. I always had to run about .028 and it ran like crap. It seems like the big gap really smooths out the idle and makes it run alot smoother when cruising. Run a tight gap, and my car doesnt idle well and runs rough. But a big gap causes blowout.....but not with the autolite double platinum's and the platinum plus's, I can run a big gap, and it still runs smooth.
One of these days, Id like to try brisk plugs. They have some crazy designs, and theres alot of racers out there running them who have seen actual gains. But they dont seem to have any marketing power behind them.