NGK Extended Reach Spark Plugs

[TurfBurn]

stutter.. misses that kind of thing... not the smooth staged rev cut like I have programmed and the way it feels most of the times when I hit it in lower gears... wasn't a ping or anything... but at the same time my AFR's went crazy all over the place... so don't know! but made me nervous without any kind of protection on that... and it only seemed to do it in 3rd gear and higher... I'll log it with the microtech one of these days (like when I'm done moving and can finally wire the wideband into the standalone) and get a good look at what happens up there... seems like it does it BEFORE my rev cut so that is part of what wiggs me out.

 

[LinuxRacr]

What boost are you running? At higher boost I have been advised to run closer to .20-.30 in terms of gapping. Your spark could be blowing out.

 

[TurfBurn]

I'm running 7 psi right now... and am gapped at .035"

 

[PaulMP3]

What boost are you running? At higher boost I have been advised to run closer to .20-.30 in terms of gapping. Your spark could be blowing out.

it happen to me at around 10-12 psi gapped at .32.

Turf- sounds like a similar issue. I since added some timing back in, and it hasnt happened.

 

[TurfBurn]

well once my JandS shows up and I get that in I'll be bumping boost to 10 psi probably and getting the timing right... I have to double check but I swear when I looked at the maps initially my timing was retarded out of boost and advanced in boost... so little confused on that one.. but I have to double check to be sure..

PaulMP3, do you know what your timing is as far as absolute degrees? like 28 or 34 or what not?

 

[PaulMP3]

well once my JandS shows up and I get that in I'll be bumping boost to 10 psi probably and getting the timing right... I have to double check but I swear when I looked at the maps initially my timing was retarded out of boost and advanced in boost... so little confused on that one.. but I have to double check to be sure..

PaulMP3, do you know what your timing is as far as absolute degrees? like 28 or 34 or what not?

Im not sure the degrees. i have my mpi tuner set at -3 in the full load column from 3500rpms and up. Im not sure what that translates in degrees.

 

[igdrasil]

TurfBurn you are very skeptical with your Car dont you?

with the microtech and stock internals you car is able to handle 16psi easily! It will be up to your tuning. There are a few proteges here pushing even 18psi on stock rods but @ that much boost they dont hold for long.
10psi should be a breeze.

 

[acidbug]

TurfBurn you are very skeptical with your Car dont you?

with the microtech and stock internals you car is able to handle 16psi easily! It will be up to your tuning. There are a few proteges here pushing even 18psi on stock rods but @ that much boost they dont hold for long.
10psi should be a breeze.

Your not talking about a daily driver are you??

B/c i don't see how they can hld up at 16psi on stock internals for long!

Chas(nervous)

 

[igdrasil]

Your not talking about a daily driver are you??

B/c i don't see how they can hld up at 16psi on stock internals for long!

Chas(nervous)

Well...

Anyway, watch me, Im going to try 15 psi daily.

 

[acidbug]

Wow..do you have a spare engine block handy?

LOL

Chas

 

[mazdaspeed75]

OK. Reading the whole dang thread, I can't determine which plugs might be the safest for my flashed MSP running at mild boost levels (8-9psi). Only engine bolt-ons so far are intake and FMIC.

I've been using the BKR7E gapped at 0.030" for the past 6k miles or so without issues. It's been about 2k miles since I last checked the plugs, but they looked in good shape. I'm about to replace them, and I'll post pics of the condition they're in.

Peace...(hippy) these are my bkr7e plugs i was wondering how many msp have went to the ngk zfr7f-11 and if you think it will be a good plug at 10 psi

 

[LinuxRacr]

I used to use those...I may start using them again.

 

[TurfBurn]

TurfBurn you are very skeptical with your Car dont you?

with the microtech and stock internals you car is able to handle 16psi easily! It will be up to your tuning. There are a few proteges here pushing even 18psi on stock rods but @ that much boost they dont hold for long.
10psi should be a breeze.

Cautious is more like it... so far I've had to redo all my maps, still have issues there that I'm working on ironing out, had to replace the valve cover gasket and I'm still losing oil out the top... and apparently chew through oil at a pretty good rate (but it's not in the exhaust... no blue smoke) as I've gone through about 2 quarts in 1500 miles about.. I've had to rebuild a couple wiring harnesses already and the car continuously stalls out until she's good and warm. Until I get everything ironed out I'm not willing to push too far out with things. I have plenty of support systems in the car so I'll be able to do things safely eventually... the injectors have plenty of headroom (8 -550 cc.. running 4 right now) and the microtech is easy to work with... just that things aren't all duck in a row right now. I'm going to be giving the engine a pretty good once over after I get moved here...

I also will be racing about 2-3 times a month doing autocross and high speed lapping days as well. So the car needs to be able to handle that... right now it's my daily driver until I sell my Lancer and get a beater truck or something.. but that isn't a big deal as I pretty much stay out of boost driving most days.

I don't plan on going much higher than 12 or 14 psi until I get forged internals in.. then I'll set and forget at 20 psi. My clutch is slipping on occasion already though... and that's at 7 psi... so I'll have to get that taken care of as well... It's a never ending project but it'll be very well trimmed and setup once I get through with things in the next month or so.

Oh.. and my front brake rotors are a bit fried (heat colored.. carbon deposits etc) so I'm replacing those too... and putting in an LSD...

 

[CRDMS1]

these are my bkr7e plugs i was wondering how many msp have went to the ngk zfr7f-11 and if you think it will be a good plug at 10 psi

To me, that looks more like the extended reach copper (ZFRxF-11) than the BKR7E (uhm)

Maybe it's just the angle...

At any rate, it looks like you are safely rich...

Peace...(hippy)

 

[mazdaspeed75]

To me, that looks more like the extended reach copper (ZFRxF-11) than the BKR7E (uhm)

Maybe it's just the angle...

At any rate, it looks like you are safely rich...

Peace...(hippy)

its the bkr7e plug i want to go to the zfr7f-11 because these bkr are fouling out and i have rough idle how amny speeds are running these plugs and how long

 

[PaulMP3]

I used to use those...I may start using them again.

same here.

 

[PaulMP3]

Cautious is more like it... so far I've had to redo all my maps, still have issues there that I'm working on ironing out, had to replace the valve cover gasket and I'm still losing oil out the top... and apparently chew through oil at a pretty good rate (but it's not in the exhaust... no blue smoke) as I've gone through about 2 quarts in 1500 miles about.. I've had to rebuild a couple wiring harnesses already and the car continuously stalls out until she's good and warm. Until I get everything ironed out I'm not willing to push too far out with things. I have plenty of support systems in the car so I'll be able to do things safely eventually... the injectors have plenty of headroom (8 -550 cc.. running 4 right now) and the microtech is easy to work with... just that things aren't all duck in a row right now. I'm going to be giving the engine a pretty good once over after I get moved here...

I also will be racing about 2-3 times a month doing autocross and high speed lapping days as well. So the car needs to be able to handle that... right now it's my daily driver until I sell my Lancer and get a beater truck or something.. but that isn't a big deal as I pretty much stay out of boost driving most days.

I don't plan on going much higher than 12 or 14 psi until I get forged internals in.. then I'll set and forget at 20 psi. My clutch is slipping on occasion already though... and that's at 7 psi... so I'll have to get that taken care of as well... It's a never ending project but it'll be very well trimmed and setup once I get through with things in the next month or so.

Oh.. and my front brake rotors are a bit fried (heat colored.. carbon deposits etc) so I'm replacing those too... and putting in an LSD...

you might want to check out the PCV valve. my car had a similar oil issue before. i Believe the problem was the PCV vavle. I recently put a catch can inline of the pcv and the intake mani, and after 3 days and undr 100miles i have about 2 teaspoons of oil in there. My car never smoke and compression was always good. Im gonna get a new PCV valve soon, but i like monitoring the old one just to see how much oil passes through.

Just a though. might be worth checking out

 

[TurfBurn]

Great idea.. never though about it! Super easy and cheap to change/replace so definitely worth it. I think I'm also going to end up switching to the BK plugs as well.

 

[02p5]

Any difference from the spark plugs BKR7E vs. BKR7E-11. I bought some BKR7E cause the store didn't have the 11's?

 

[igdrasil]

Any difference from the spark plugs BKR7E vs. BKR7E-11. I bought some BKR7E cause the store didn't have the 11's?

The only difference is the gap. The BKR7E-11 comes pregaped. You will need to gap the BKR7E to what you like.