I KNOW I KNOW: Search, but I keep finding contradictive information . Some say EGV others swear EIX. I will be running a 62-1 and will be driven on the street/ track on weekends.

I am leaning toward 10 EGV but just want to know if any more conclusive info has been accomplished since these random old/new cold plug threads.

Thanks and fire away.

 

IMO the only draw back on the EGV is that it's a non-resistor plug. I've used them in several cars at the 400hp level and above without issue though. But, being a non-resistor plug, the potential is there for EMI problems.

 

any "10" resistor type plugs rotary specific that are not iridium

 

Never used them but....

https://www.rx7club.com/rotary-car-performance-77/autolite-spark-plug-experience-765161/

 

A bit of searching shows the AR3932 is used quite a bit on boosted/nitrous piston engines. Read where there are GN's pushing up to 28.5 lbs boost on them. $2.69 each and in stock at my local O'Reily Auto Parts store. I may have to give those a try.

 

EGV’s all the way, Sparkplugs.com has all the heat ranges you can want, a nice price.

 

I've run 10EGV's and the Denso 10.5's. Other than the price, there was no noticeable difference.

Some will argue that the non-resistor type will introduce additional noise that can screw everything up or won't work with CDI setups. I've experience neither. I'm not speaking from theory but experience on that.

 

I went with the EGV's. Thanks everyone, it's appreciated.

 

EMI problems as in causing issues with the EMS or other associated pieces, or just with a radio

 

The fear most have is that it will fry their computer. I think that this issue may have a lot to do with how you did the wiring harness to begin with though.

 

HKS recommends that you avoid non-resistor plugs for the twin power (I am using BR10EIX @ 20psi of boost).

http://www.hksusa.com/products/more.asp?id=842

 

Yes.

http://www.ngksparkplugs.com/techinf...aqresistor.asp

 

Well **** me! I guess I will be cancelling my order for the EGV and going EIX. Shitty because they already shipped the EGV.

Thanks arghx, you have been a great help!

 

I tried the B10EGV's last January on the dyno and I almost had a heart attack when we were down a few hundred horses in disbelief. Long story short, we immediatly switched out to the stock 9's and hit 400+rwhp.

Still can't figure why those plugs don't work for me... But I do want to add that I run the HKS twin power and I also have a new stock ignition harness that doesn't have a seperate ground for some reason...

If these plugs work for anyone out there...I have a set with only 3 dyno pulls that I'll let go cheap. Pm me if you're interested.

 

I don't know about you guys, but where I get my plugs (Advance Auto Parts near my house, the guys there are surprisingly not idiots) the BR10EIX are still cheaper than stock by like 50 cents a plug. B10EGV is even cheaper. So I'm not sweating the coinage.

oh, and I'm sure a number of people run B10EGV with HKS twin power anyway. But I feel more comfortable following their recommendation.

 

Where do you find if it's a resistor type or not ?

I'm running BUR9EQP for my Leading, what type is it?

 

The 'R' in the plug type denotes resistor. so if it has an R before the heat range number it has a resistor.

 

Totally forgot about the resistor, Im running Crane HI-6’s with Fireball coils, sorry abt that

 

I've been told that the non R type plug 'can' lead to problems with the FD crank angle sensor and the timing pickup. I have run the egv's before, but am currently running all 9s with the HK$ twinpower, it's been fine at 15-17 psi.

 

That is the PSI I plan on running so maybe I will stick to my 9's, tune a little and switch when the time comes for new plugs and try 10EIX's. You are not running water/alchy injection are you Goodfella?

 

switching from 4 9's to 4 EIX's noticeably affected my idle tuning etc. It needed more timing and a bit more fuel on my engine to idle smoothly. So if you get it nice and tuned on the 9's you may have to redo some of the driveability tuning if you switch to 4 10's, or at least I did.

 

as i disassemble engines i often find radial cracks emanating from the plug holes...

i assume running too hot a plug is the culprit. don't make the mistake of leaning on your engine too hard with 7s or 9s.

hc

 

I'm running an Aquamist 1s system. Howard brings up a good point, I've been thinking about running some 10s again, either EGVs or EIX. I'm not a fan of using the turned down socket, one thing that's kept me away from the EGVs I used in the past.

 

I got 10EIX's today in my trailing and 9's in the leading. Grinding down that extra spark plug socket was interesting but worked, I have no finger prints from it getting so hot while grinding(should have used gloves but it is funny how beer makes you just lazy)

 

Interesting how a lot of folks are going for the EIX's... after reading this older thread below it makes me think twice about running them. Seriously though, there's always contradicting info on these different plugs... I guess because there so many different variables in everybodies different set-ups.

https://www.rx7club.com/showthread.p...hlight=br10eix