Wasted my money on Denso...

[SergntMac]

Wasted my money on Denso plugs and I'm pizzed!

Some of y'all been posting here here about poor performance from the Denso plugs, low mileage on the plugs, wrong gaps, burned or broken electrodes, yada, yada, yada...Including that they don't provide any performance for the expense involved.

I was one of the first to dyno test Densos on a dyno about a year ago. It was on my N/A Marauder, and the Denso IT-20 (IT-22 for blower cars) cleanly provided 4 RWHP and 3 RWTQ. I know this is not astounding power, but it is true.

I've got about 15-17K on my Denso IT-22 installed last June. All the talk about all the problems made me wonder, and I've got a dyno tune coming up next weekend, so, I ordered a replacement set from Dennis, and put 'em in yesterday. He reminded me that if here are any problems, send the Denso back, they have a warranty. Y'all wanna know the condition of my old Denso plugs?

Their fine, used, but in perfect condition. The electrodes show some wear, but normal and expected wear. These plugs are good enough to keep as spares, maybe I'll call them my winter plugs and rotate them...

Spending money I don't need to spend really pizzes me off! This reminds once again that driving the MM hard is good for it. Keeps all that carbon and junk from building up in the combustion chamber.

[SouLRioT]

just to make your story short your upset that you bought your second set of plugs, not denso's plugs in the first palce, right or wrong?

[Ross]

Keep that carbon blown out, I always say! :banana2: :rock:

[sailsmen]

I had Denso pulled and checked w/ 17K miles on them and they were aok!

[mtnh]

...talk about a misleading headline! Great story, Mac.

Mike

[Paul T. Casey]

Great advice Mac, I intend on keeping my Denso's decarbonated with weekly trips to the track!

[SergntMac]

just to make your story short your upset that you bought your second set of plugs, not denso's plugs in the first palce, right or wrong?
Read more here?

http://www.mercurymarauder.net/forums/showthread.php?t=9127

[Glenn]

Listen this car is built, marketed and advertised to be driven HARD. I got the Mercury MM marketing materials to prove it. I beat the piss out of my MM every day. (Not this week, it is under cover for awhile - you know gas prices). I torture my MM. I give it NO rest. If it doesn't get the full petal to the floor it screams at me for more. Not one day has gone by without numerous WOTs, burning rubber, driving over the century mark. The engine at 20,000 miles runs great, the front tires are perfect (the rears are worn in the center, but still useable - I'm going with 35 psi), no ticky, ticky, no smoke. This car gets no mercy from me and I am delighted with its performance and reliability and my consistent 20-21 mpg. Even more so with my modest mods. Yes, I have Denso plugs in the engine for over 15,000 miles. I am not going to even look at them until I get an engine miss. Take it from the oldest active member on this Net who has run Fords all his life: this car was built to run - run it and run it hard.

Glenn

[Murader03]

Take it from the oldest active member on this Net who has run Fords all his life: this car was built to run - run it and run it hard.
Glenn
Oh Glenn! Your not the oldest and neither am I. There are several members that are in there mid to late 60's. :beer:

As for the car, your right about running it. When I bought my Cobra, I was told to drive it like I stole it. I did, and it was running strong at 100K when I got the MM. I've got 51K+ on the MM since 11/02, it's run hard, and it's my daily driver. Neither the Cobra nor the MM has/had shown any indications of trouble of any kind. :lol:

[BillyGman]

Wow Glenn! Burning rubber as well as 100+MPH every day? And here I thought that I drove my MM hard! You must have two radar detectors, and a laser jammer hooked up in your car!!!!

[schuvwj]

Wasted my money on Denso plugs and I'm pizzed!

Some of y'all been posting here here about poor performance from the Denso plugs, low mileage on the plugs, wrong gaps, burned or broken electrodes, yada, yada, yada...Including that they don't provide any performance for the expense involved.

I was one of the first to dyno test Densos on a dyno about a year ago. It was on my N/A Marauder, and the Denso IT-20 (IT-22 for blower cars) cleanly provided 4 RWHP and 3 RWTQ. I know this is not astounding power, but it is true.

I've got about 15-17K on my Denso IT-22 installed last June. All the talk about all the problems made me wonder, and I've got a dyno tune coming up next weekend, so, I ordered a replacement set from Dennis, and put 'em in yesterday. He reminded me that if here are any problems, send the Denso back, they have a warranty. Y'all wanna know the condition of my old Denso plugs?

Their fine, used, but in perfect condition. The electrodes show some wear, but normal and expected wear. These plugs are good enough to keep as spares, maybe I'll call them my winter plugs and rotate them...

Spending money I don't need to spend really pizzes me off! This reminds once again that driving the MM hard is good for it. Keeps all that carbon and junk from building up in the combustion chamber.


Well Mac I’ve read your pic above and must say I am very frustrated on your comments. I guess all of the other MM.net members you called 'y'all' who had problems with these plugs must be either on drugs or liars!
Your comments say there is no way anyone could have these Denso problems and if you are, you must drive your cat harder to get longer plug life! Sounds like a Zanio pitch to me!

Not everybody beats the sh?t out their MM every hour of every day like some have written. If Denso plug life was depended upon beating your car daily maybe they should have a label stating “Plug life is dependent on beating the sh?t out of your engine”.

Looking at a book I bought this week on ‘Building Max. Performance from 4.6L Engines’ from Sean Hyland, it says our Denso plugs provide quote” Denso Iridium plugs seems to have a higher temperature tolerance, which helps in a marginal situations” end of quote, page 75, middle of page.

Sean Hyland recommends NGK TR6, (which is one grade cooler than stock) for our 4.6L N/A engines giving quote “excellent performance” end of quote not just for marginal situations.

My 2 cents!

[THE_INTERCEPTOR]

Listen this car is built, marketed and advertised to be driven HARD. I got the Mercury MM marketing materials to prove it. I beat the piss out of my MM every day. (Not this week, it is under cover for awhile - you know gas prices). I torture my MM. I give it NO rest. If it doesn't get the full petal to the floor it screams at me for more. Not one day has gone by without numerous WOTs, burning rubber, driving over the century mark. The engine at 20,000 miles runs great, the front tires are perfect (the rears are worn in the center, but still useable - I'm going with 35 psi), no ticky, ticky, no smoke. This car gets no mercy from me and I am delighted with its performance and reliability and my consistent 20-21 mpg. Even more so with my modest mods. Yes, I have Denso plugs in the engine for over 15,000 miles. I am not going to even look at them until I get an engine miss. Take it from the oldest active member on this Net who has run Fords all his life: this car was built to run - run it and run it hard.

Glenn

Glenn, you are the man. :up:

[SergntMac]

I guess all of the other MM.net members you called 'y'all' who had problems with these plugs must be either on drugs or liars!
Your comments say there is no way anyone could have these Denso problems and if you are, you must drive your cat harder to get longer plug life! Sounds like a Zanio pitch to me!
Stick to the facts, Bill. You're free to think what you want of your fellow members, but don't credit any of these thoughts to me. Someone here will be doing a search for the post where I said these things.

My post says what it says, nothing more. It's not my fault you are disappointed by the Denso plugs. They have a warranty, get them replaced or get a refund, and move on. You want to suggest anohter product, go for it. Post your experience and your opinion on that product.

I've had a very positive experience with the Denso plugs, maybe that was luck, maybe not. But, I'm not going to take this kind of slop for trying to be helpful to other members here.

[Murader03]

Okay people! Everyone will/has their own opinion on what they think is best, what they have had trouble with. Let's not let this get into a pissin' contest. Personally, I'll try anything once, and if it doesn't work out, so what. I tried it, didn't like the results, or liked the results, and will go about my business.


Mac and others on this board have been the people who have taken risks to try out new things and have reported both positive and negative on their trials. What works for them my not work for all, and it's up to each of us to decide for ourselves what we are willing to take our chances on and spend our cash for. These people are the expedition leaders so to speak. They've taken it upon themselves in most cases to find out what makes the MM tick and what can be done to make it better. Myself as well as others, "THANK THEM" for that.

Others have taken it upon themselves to make the little things that we so love to buy and display or use with our cars, paper pads, pens, to name a few. So, let's all just be thankful that there are people here who take the risks so the rest of us can reap the fruits of their experiments and experience!

Nuf said!

[RF Overlord]

So, let's all just be thankful that there are people hear who take the risks so the rest of us can reap the fruits of their experiments and experience!

Well said, Bob... :up:

[Agent M79]

(I posted this in a wax debate thread a while back. Replace wax references with spark plug equivelents and it's the same thing, yes?)

Quite the divisive issue, eh?

Perception and subjectivity are the basis for opinions where fact is unavailable or irrelevant. Probably the most relevant evidence of this is a head to head comparison of various products.

The "wax test" that has been brought up before is HERE (http://www.nsxsc.com/nsexcitement/waxtest.html).

Same surface, different products. If one was clearly and distinctly "best", all would have chosen it. They didn't. Why? Perception.

There are too many factors to choose one best choice for everyone. The way you buy it, how much it costs, what color bottle, expert opinion, ease of application, frequency of reapplication, car color, paint condition, prep work, personal bias, mental condition, intoxication level, character flaws, and probably more determine "best" for each individual.

So... now that [ZAINO] we understand that there can't be [ZAINO] a clear best wax that [ZAINO] makes everyone happy, we could move on [BUY ZAINO] to other topics [ZAINO].
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[SouLRioT]

So... now that [ZAINO] we understand that there can't be [ZAINO] a clear best wax that [ZAINO] makes everyone happy, we could move on [BUY ZAINO] to other topics [ZAINO].
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Mr. Subliminal......your just on a roll today Agent.....that was a good link for the wax too

[Murader03]

RF, you really need to get out more! 2300 posts....:bounce:
:beer: :lol: :P

[warren]

Just my 2cents.
We use the Super High-Performance Ir. plug (IT20's etc.)
They make a Hi-Performance & Main.Free plug that would last longer but
it would not serve our purpose at all.

The way these are made with the smallest dia. center( very important) in the industry, they produce better ignitability (a larger spark kernel) and keep us away from spark knocking much, much more so. Also the colder range helps too. This is important for those with chips etc. & 180 stat. where we are asking the engine for more advance. We end up with more HP & TQ. with these plugs. (especially good in areas like Calif. where Gas Oc. is at 91 tops.)

The ground electrode should wear faster because it's not of IR. Alloy.
Heavy performance driving will wear them down faster.
Great care must be taken in gaping them as the center electrode can be
cracked and they won't work well at all.
I just pulled mine and had a .061 gap. (my fault should have listened to Dennis.) Leave gap at .044 and they will wear longer. If you re-gap to .050 use great care.
However, you can re-gap down and re-use as long as the Ground electrode
still has a cupped end.
I found that my MM03 was starting to hold back at WOT at 4500+rpm about
7 weeks ago and that was the problem - the gap was way to big.
So after much research and checking these work the best for me to
add more HP, TQ and keep my 4.6 safe and away from Knocking.

WarrenB

[kurly]

Well said, Bob... :up:

DITTO ! :up:

[jgc61sr2002]

It never ceases to amaze me, if any member here has bought Denso Iridium plugs from me and they have failed in less that 60K miles, I gues you broke your fingers taking the bad plugs out because you aparently can not dial 904-276-5003, I am sorry its at the end of my day here its 6:30 PM I just saw this, why some people waiste more energy writing instead of calling is beyond me, I have used Denso for two years they are a good plugs, I also carry the AWSFA12C and 22C Motocraft plugs, if you want any of these CALL, if you have a bad plug or plugs CALL, I will send you out a replacment set of your choice FREEEEEEEE.


You can't ask for more than that. :up:

[sailsmen]

I think part of the problem is for some the Denso are not expensive enough. I have seen this happen in retail.

If they were $65 each then people would think they were so exotic and so good that they are not suppose to last more then 10 K miles. People wouldn't hesitate to replace them every 10 K miles wether they needed to be replaced or not. :rock:

[SergntMac]

If you have a bad plug or plugs CALL, I will send you out a replacment set of your choice FREEEEEEEE.
When I think that I could have avoided insult, and saved myself 100 bucks by lying about the details...I must have been out of my mind to open this thread!

Logan, change my screen name from SergntMac to StupidMac...

[Murader03]

Logan, I think it's time this thread was closed!!!!!!!!!!!!!!!!!!!!!!!! !!!

Regardless, the above should have been a PM to Dennis not out in the public forum!

[schuvwj]

Logan, I think it's time this thread was closed!!!!!!!!!!!!!!!!!!!!!!!! !!!

Regardless, the above should have been a PM to Dennis not out in the public forum!

Murader03 I agree and Mr. Reinhart's comment should of been offline as well.
I was willing to end this thread when you stated "Nuff Said" 5 or 6 posts ago.

[Logan]

If you have a problem with a vendor, deal with THEM offline.

This thread is DONE.