View Poll Results: which do you prefer?
NGK
130
46.93%
Denso
99
35.74%
Just stick a hampster in each cyl.
48
17.33%
Voters: 277. You may not vote on this poll
iridium plugs - NGK or DENSO?
10-14-06, 02:56 PM
#46
Pole Position
OMG 
L-Tuned Exhaust??? Now you can upgrade to the K&N FIPK to get rid of the stock intake restriction. Then you might as well get the TM's, see. Off to the races.
Was it a blood transfusion, a brain transfusion, or lobotomy? Mafia bribe? Offer you couldn't refuse? Mid-life crisis?
L-Tuned Exhaust??? Now you can upgrade to the K&N FIPK to get rid of the stock intake restriction. Then you might as well get the TM's, see. Off to the races.Was it a blood transfusion, a brain transfusion, or lobotomy? Mafia bribe? Offer you couldn't refuse? Mid-life crisis?
Thanks for the advice on the plugs.
12-30-06, 12:50 AM
#48
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i'm gonna try denso iridiums. i've always used ngk in my honda and it worked great. but,
1. denso has the world's finest core.
"...the narrower the centre electrode is, the lower the potential difference (voltage) that is required to jump the gap between centre and ground electrodes."
2. denso uses the u groove.
"...ground electrode which is claimed to aid in the production of a 'flame core' which further improves the combustion process."
3. denso is owned by toyota.
1. denso has the world's finest core.
"...the narrower the centre electrode is, the lower the potential difference (voltage) that is required to jump the gap between centre and ground electrodes."
2. denso uses the u groove.
"...ground electrode which is claimed to aid in the production of a 'flame core' which further improves the combustion process."
3. denso is owned by toyota.
12-31-06, 07:01 PM
#49
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yup trd plugs are definitely denso. i just saw some today. i think the denso logo on the plug is larger than the trd logo.
01-03-07, 10:42 AM
#50
Lexus Fanatic
here are the part numbers for those who need them.
GS400/430 - LS400/430 - LX470 - RX300 - ES300 - SC400/430 - GX470
Denso Iridium - IK20
NGK IX iridium - BKR6EIX-11
NGK OE Laser Iridium - IFR6T-11
GS300/IS300/SC300
Denso Iridium - IK16
NGK IX iridium - BKR5EIX-11
NGK OE Laser Platinum - BKR5EKPB-11
GS400/430 - LS400/430 - LX470 - RX300 - ES300 - SC400/430 - GX470
Denso Iridium - IK20
NGK IX iridium - BKR6EIX-11
NGK OE Laser Iridium - IFR6T-11
GS300/IS300/SC300
Denso Iridium - IK16
NGK IX iridium - BKR5EIX-11
NGK OE Laser Platinum - BKR5EKPB-11
02-26-07, 12:22 AM
#52
NGK's are cheaper than the Denso Iridium plugs. But I think the Denso's are better since TRD highly recommended them. I was using the IK20 plugs for my supercharged Corolla before.
02-26-07, 10:43 AM
#54
I think this thread should only be responded to by those that have actually run both plugs in comparable situations-same car,etc...To give factual comparison results.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
The following users liked this post:
ronkelley (01-27-23)
03-11-07, 08:27 AM
#55
I think this thread should only be responded to by those that have actually run both plugs in comparable situations-same car,etc...To give factual comparison results.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
03-11-07, 09:12 AM
#56
I think this thread should only be responded to by those that have actually run both plugs in comparable situations-same car,etc...To give factual comparison results.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
Just because someone used Denso or NGK and they liked it is irrelevant. We are talking comparison here, not if you liked a plug. Shove a banana in the spark plug hole and run a copper wire through the middle and some would say it's a good spark plug, but again ,nothing to compare it to. For those that have run both plugs and commented on them-that is the feedback that should be considered worthwhile.
Maybe we could argue whether plantains would be better in this application than bananas. More potassium maybe, better for spark?
BTW, that banana thing, is that anything like the Beverly Hills Cop thing where he shoves a banana up his tailpipe?
03-19-07, 12:42 PM
#57
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well me myself dealin with supras for all my life i prefer densos. only ever had one problem with them and that was my fault. the ngk's i ran the ivory broke all the time and it would ping around in the cylinder.
05-13-07, 07:52 AM
#58
Super Moderator
A friend of mine does this on his Jetta turbo (but only running about 280hp at the crank) to good effect. Turbo motors just get so damn hot that plugs don't last long anyway, so may as well go cheap if you have to replace them that often.
05-13-07, 08:05 AM
#59
You probably would have been better off with standard $0.79 copper plugs and just swapping them every few months. A friend of mine does this on his Jetta turbo (but only running about 280hp at the crank) to good effect. Turbo motors just get so damn hot that plugs don't last long anyway, so may as well go cheap if you have to replace them that often.
A friend of mine does this on his Jetta turbo (but only running about 280hp at the crank) to good effect. Turbo motors just get so damn hot that plugs don't last long anyway, so may as well go cheap if you have to replace them that often. And I replaced them every time we went to the track...
07-14-07, 07:54 AM
#60
Somewhat offtopic, my buddy, who owned a beautiful 93 MR2, fully modded, told me something i found interesting. I bought myself some NGKs and told him they were plats. Well he said, he would prefer anything thats copper. He said the copper ones are the most conductive of all the metals available for spark plugs.