wHAT SPARK PLUGS SHOULD I BE RUNNING
#26
My e-mail question to Dave at KDR:
I'm assuming you mean the B10EGV, B105EGV or B11EGV that was referenced in the thread.
If not let me know, because that is what I thought you were referring to.
Ken
His reply:
Hey Ken..you are correct...dave@KDR
I guess he agrees with us.
Ken
I'm assuming you mean the B10EGV, B105EGV or B11EGV that was referenced in the thread.
If not let me know, because that is what I thought you were referring to.
Ken
His reply:
Hey Ken..you are correct...dave@KDR
I guess he agrees with us.
Ken
#27
Originally posted by SPOautos
Here ya go, I did a little leg work for you guys!!!! Here is a link to the guy selling the thin walled sockets for $20 shipped
https://www.rx7club.com/forum/showth...highlight=plug
STEPHEN
Here ya go, I did a little leg work for you guys!!!! Here is a link to the guy selling the thin walled sockets for $20 shipped
https://www.rx7club.com/forum/showth...highlight=plug
STEPHEN
Send $20 to paypal address tlovergirl@yahoo.com, or send check or money order to
Andy Sosnowski
2133 Bullock Rd apt 1
Bay City, MI 48708
It should be ready to be shipped tomorrow.
Andy
I did the Paypal trick and he PM'd back that it would be shipped 2-6-03.
Ken
#28
Interesting thread. I tried multiple sets of the EGVs in 9 and 10+ heat ranges and found the NGK 10.5 race plugs to be superior in overall driveability. Never put it on the dyno but driveability is so important to me I haven't gone back to the EGVs or BUR. Daily driving with these plugs has been fine so far as long as I let the car warm up before shutting down. I agree with Peter that proper tuning of AFRs especially in cruise will allow use of the colder plugs without fouling for many many miles.
#29
I've been getting great driveability with the B10egv's BUT different cars and tuning like different things.
The thing about the EGV's is you can pick them up at local parts stors for $3.99 according to Forcefed so its well worth the $16 to try them out and see if you like them before spending $120 on a set of race plugs
STEPHEN
The thing about the EGV's is you can pick them up at local parts stors for $3.99 according to Forcefed so its well worth the $16 to try them out and see if you like them before spending $120 on a set of race plugs
STEPHEN
#30
yesterday I installed the B10EGVs... had to grind my socket like I expected, the idle smoothed right out and the car ran pretty nicely. then I went to the dyno. I didn't have any problems but I was mostly doing a base line so there's no comparing the plugs to the stock ones I took out.
what do you all know about reading plugs?
what do you all know about reading plugs?
#31
Reading plugs is a touchy subject in a turbo rotary since you need to pull them directly after a run to gain meaningful data. To do this requires shutting down a hot motor/turbo so many are reluctant.
#32
Please if you buy them, before installing tighten the screw on "nipples" with a set of pliers as they do come loose after a bit of use
Rice could you explain further what you mean here.
I just received my 8 B105EGV's for $40.88 plus $6.95 for shipping from www.sparkplugs.com.
I'm still waiting for the $20 socket I bought.
Now SPO said I should be gapping them at .022. Is this correct.
Hopefully when I get the socket I'll install them and be able to run 20psi at high rpm without missing like it did with the stock 9s.
Ken
Rice could you explain further what you mean here.
I just received my 8 B105EGV's for $40.88 plus $6.95 for shipping from www.sparkplugs.com.
I'm still waiting for the $20 socket I bought.
Now SPO said I should be gapping them at .022. Is this correct.
Hopefully when I get the socket I'll install them and be able to run 20psi at high rpm without missing like it did with the stock 9s.
Ken
#33
"Please if you buy them, before installing tighten the screw on "nipples" with a set of pliers as they do come loose after a bit of use "
Rice, could you explain further what you mean here.
I just received my 8 B105EGV's for $40.88 plus $6.95 for shipping from www.sparkplugs.com.
I'm still waiting for the $20 socket I bought.
Now SPO said I should be gapping them at .022. Is this correct.
Hopefully when I get the socket I'll install them and be able to run 20psi at high rpm without missing like it did with the stock 9s.
Ken
Rice, could you explain further what you mean here.
I just received my 8 B105EGV's for $40.88 plus $6.95 for shipping from www.sparkplugs.com.
I'm still waiting for the $20 socket I bought.
Now SPO said I should be gapping them at .022. Is this correct.
Hopefully when I get the socket I'll install them and be able to run 20psi at high rpm without missing like it did with the stock 9s.
Ken
#35
Ken, these plugs have screw on nipples at the top of the plugs. Hold the plug in a wrench and loosen the nipple with a set of pliers.......
Then hand tighten them, once they are seated tighten them a further 1/6 th of a turn, you will need to hold them hard with the pliers on the nipple and the body "hex" in the wrench. You will feel the thread deform slightly....... Once you do this the nipples will never vibrate loose for the life of the plug. Gives a better contact and stops misfires due to loose or poor connections.
Then hand tighten them, once they are seated tighten them a further 1/6 th of a turn, you will need to hold them hard with the pliers on the nipple and the body "hex" in the wrench. You will feel the thread deform slightly....... Once you do this the nipples will never vibrate loose for the life of the plug. Gives a better contact and stops misfires due to loose or poor connections.
#36
Originally posted by RICE RACING
Ken, these plugs have screw on nipples at the top of the plugs. Hold the plug in a wrench and loosen the nipple with a set of pliers.......
Then hand tighten them, once they are seated tighten them a further 1/6 th of a turn, you will need to hold them hard with the pliers on the nipple and the body "hex" in the wrench. You will feel the thread deform slightly....... Once you do this the nipples will never vibrate loose for the life of the plug. Gives a better contact and stops misfires due to loose or poor connections.
Ken, these plugs have screw on nipples at the top of the plugs. Hold the plug in a wrench and loosen the nipple with a set of pliers.......
Then hand tighten them, once they are seated tighten them a further 1/6 th of a turn, you will need to hold them hard with the pliers on the nipple and the body "hex" in the wrench. You will feel the thread deform slightly....... Once you do this the nipples will never vibrate loose for the life of the plug. Gives a better contact and stops misfires due to loose or poor connections.
I can see after doing this I can see why they can loosen up without tightening them more than they are from the factory.
Now do I gap them at .022?
Ken
#37
Ken
I swapped my plugs in about 2 weeks ago.
I was running factory spec NGKs 7s and 9s.
After putting these in I noticed the idle got a bit better. After logging at all kinds of boost (pulls from 8-14)and AFRs from 10.2 up to 12.2... I get much higher knock reading under load. i.e old readings were sub 60 new readings are closer to 170 It didn't bother me much at first, I figured something else must have changed. Once the weather clears out for a day or 2. Im swapping the old plugs back in to test my theory that the new high knock readings are dirrectly related to the new plugs.
BTW the car feels fine. I don't detect a missing.
I gapped mine to .022.... they came at .025
Do me a favor, Datalog before and after changing the plugs.
I swapped my plugs in about 2 weeks ago.
I was running factory spec NGKs 7s and 9s.
After putting these in I noticed the idle got a bit better. After logging at all kinds of boost (pulls from 8-14)and AFRs from 10.2 up to 12.2... I get much higher knock reading under load. i.e old readings were sub 60 new readings are closer to 170 It didn't bother me much at first, I figured something else must have changed. Once the weather clears out for a day or 2. Im swapping the old plugs back in to test my theory that the new high knock readings are dirrectly related to the new plugs.
BTW the car feels fine. I don't detect a missing.
I gapped mine to .022.... they came at .025
Do me a favor, Datalog before and after changing the plugs.
#38
Nice post by dclin:
http://www.ngksparkplugs.com/techinf...s/overview.asp
A primer on spark plugs, I learned a lot.
Ken
http://www.ngksparkplugs.com/techinf...s/overview.asp
A primer on spark plugs, I learned a lot.
Ken
#39
Originally posted by forcefed1 I gapped mine to .022.... they came at .025
Is there a big difference between .022 and .025.
Does not seem like a big deal but maybe it is.
Ken
#41
This is an interesting thread. I am about to replace my plugs, and am glad I checked here. The service manual has two different plugs for the leading side, and the trailing side of each chamber. The B10EGV, or B105EGV's are recommended as both, so just get four of the same?
#43
well as im sure you know plugs should last longer than that. once I had to start the car several times over a month never letting teh car run for more than 30 seconds each time. Then the day I was ready to start her for good, nothing. turn's out she needed new plugs.
Seems teh plugs fould on our cars and there's no middle ground. they just GO!
Seems teh plugs fould on our cars and there's no middle ground. they just GO!
If you start it always go for a ride and get everthing up to full temp. before shutting it down. And use at least a 2 minute cool down after boosting before you shut it off.
Barry
#48
#49
same plugs!?
do you have to have diffrent plugs per rotar? i'v been told not to run the same plug for the Leading spark as the trailing spack plug! like heat range 7 in the Leading spark and a 9 heat in the trailing spark?
Last edited by al-man; 05-10-09 at 03:54 PM.
#50
Does it have a distributer? If yes, they are all the same heat range. If it has those new fangled twin coils, its leading range should be 2 ranges hotter than trailing.