e3 spark plugs

[XJROB]

Just bought a 2011 JK. Need a bit more power out of the minivan v6. Any opinions on the e3's?

[6DoF]

might run a tad smoother, or start a touch easier ... but won't be any more power that you'll notice. i do like to use the E3's though.

best bet i found for that motor, short of a blower, is to get a superchips or similar programmer on it. just the throttle response along is worth it.

[XJROB]

Ok. I may look into that, I had a DiabloSport on my Silverado and loved it. I may see what ram air does to it as well.

[6DoF]

Ok. I may look into that, I had a DiabloSport on my Silverado and loved it. I may see what ram air does to it as well.

for a jeep i'm always a fan of the stock air box. any added air (while most actually are worse) doesn't outweigh the water/dirt protection of the factory air box.

[6DoF]

if you REALLY want to get more power to ground, you need gears. that motor basically should never be driven below 2500 Rs, and the best way is to gear it a few steps past stock. no they aren't cheap, but you can pick something maybe a bit high for the current tire and might be a bit low for what you'd think of as a crazy big tire, and just do it. the cost vs torque to ground is great. 4.88 and 35's is a solid mid point, a local offroad shop around here, parts and labor, is like $1400.

3.73 --> 4.88 is over 30% ... not only is it after the trans so it can't suck some of it, but the trans should react and eat less having to work less.

[XJROB]

I guess I could see the ram filter sucking in some extra dirt.

I could do gearing. it will need tires in no more than a year, i was thinking 2 inch and 33's. Maybe 4.10's or 4.56's. Time will tell.

Meanwhile, my JKS's are on the way so a trip to the mounds is in order soon.

[6DoF]

33's i'd say 4.56 MINIMUM ... probably would still look into the 4.88's

i can run off a graph of RPMs of tire vs gear later if you'd like.

[Blue XJ]

I guess I could see the ram filter sucking in some extra dirt.

I could do gearing. it will need tires in no more than a year, i was thinking 2 inch and 33's. Maybe 4.10's or 4.56's. Time will tell.

Meanwhile, my JKS's are on the way so a trip to the mounds is in order soon.

The Mounds closes to trucks soon doesn't it? Don't wait too long!

[6DoF]

The Mounds closes to trucks soon doesn't it? Don't wait too long!

that can't be a thing ...

[xj_man_646]

Let's think of it this way. OEM's are at the point of spending $1,000,000 for every 0.1 MPG increment they are able to gain in today's new vehicle market.

If the e3 spark plugs made a substantial difference, wouldn't they have already done it?

One of my friends did some work on an e3 spark plugs research project at Michigan Tech, and if I recall, the benefits were negligible.

[6DoF]

i feel like i've seen dyno runs on some saturday morning show or youtube series ... like horse power or engine masters ... that showed a power gain at least. maybe 0.5-1%. but that doesn't mean they help emissions at all.

to be fair, i run E3's in my 4.6L stroker and both LQ4's for the TJ and 2500HD

[XJROB]

Let's think of it this way. OEM's are at the point of spending $1,000,000 for every 0.1 MPG increment they are able to gain in today's new vehicle market.

If the e3 spark plugs made a substantial difference, wouldn't they have already done it?

One of my friends did some work on an e3 spark plugs research project at Michigan Tech, and if I recall, the benefits were negligible.

That makes sense. The only test results I've seen are from Bosch themselves, ill do some research.

[XJROB]

33's i'd say 4.56 MINIMUM ... probably would still look into the 4.88's

i can run off a graph of RPMs of tire vs gear later if you'd like.

I might take you up on that when the time comes thanks

[XJROB]

that can't be a thing ...

They close from march 15th to May 15th for grooming I think thats what he meant

[6DoF]

I might take you up on that when the time comes thanks

there's a likely chance i get bored today at work ... auto or manual and do you know your current gears?

[xj_man_646]

i feel like i've seen dyno runs on some saturday morning show or youtube series ... like horse power or engine masters ... that showed a power gain at least. maybe 0.5-1%. but that doesn't mean they help emissions at all.

to be fair, i run E3's in my 4.6L stroker and both LQ4's for the TJ and 2500HD

Yeah, it was Stacy David, and featured the research done at MTU. I went through school with some of the guys shown in this video.

https://www.youtube.com/watch?v=62KavugC-5o

You can also see Stacy David meeting with a group of the wheelers (for a split second) at 0:43. That was very fun...getting to meet him. He signed a few dashboards and checked out some of the club rigs. He's a cool guy.

Granted, the research in the video was sponsored by e3, so they are definitely going to show an advantage. That being said, I am quite confident that OEMs would pay a premium price for a spark plug that delivered real world performance and emissions gains :dunno:

[6DoF]

real world performance and emissions gains :dunno:

these things are somewhat mutually exclusive unfortunately

[xj_man_646]

Performance can also include fuel economy or drivability.

[XJROB]

there's a likely chance i get bored today at work ... auto or manual and do you know your current gears?

Auto. dana 44. write-up (https://www.quadratec.com/jeep_knowledgebase/article-156.htm) says 4:10, but I don't know for sure.

[6DoF]

i'd suspect 3.73 ... this is what i can find for 2011

6 speed 3.21
auto 3.73
rubie 4.10

[6DoF]

top gear RPMs @ 70MPH ... (42rle trans with .69 OD)

for 30s:
3.73 - 2018 <-- sux from the start
4.56 - 2467 <-- proper get up n go
4.88 - 2640 <-- b/c race car

for 33s:
3.73 - 1835 <-- fail
4.56 - 2243 <-- better than stock, but some loss to heavier tires
4.88 - 2400 <-- proper get up n go

for 35s:
3.73 - 1730 <-- total fail
4.56 - 2115 <-- heavier tires will make this feel like stock or worse
4.88 - 2263 <-- better then stock, but half negated by heavier tires

then remember me saying that motor really needs to be driven at 2500rpm or over for acquitted power and better drive-ability, the TC will help you need slightly less gear to make that happen. 4.88 on 33's would run great pending you don't like to speed a lot on the highway, it'll drive well up there but just use more gas at 80+. i've also pretty much never met anyone who had 33's on a JK and didn't go to 35's unless it was a 100% pavement pounder. this is why 4.88s.

[XJROB]

Hmm. it must be 3.73 then, cuz its a sport not a rubi.
(edited)
Thanks for the numbers!
ok so it looks like its between 4.56's and 4.88's, and if i graduate to 35's definitely 4.88's. I thought it would effect rpm range a little more than what you came up with. thats good to know. I do have a wife factor, she takes her on the freeway. its her daily driver, wheeling every so often. well see when it comes time.