Denso Plugs Dyno Results
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Joined: Mar 2001
Posts: 1,585
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From: Mobile, AL, USA
Way to go!
I didn't figure any gain from these things, but you were testing them against the factory plug. I could guarantee that compared to NGK's or some good copper plug they wouldn't be any difference in power.
Now, I'll test the Beru Silverstones and see what they give us (I'm guessing maybe 5 over factory).
Thanks man!
BfB
I didn't figure any gain from these things, but you were testing them against the factory plug. I could guarantee that compared to NGK's or some good copper plug they wouldn't be any difference in power.
Now, I'll test the Beru Silverstones and see what they give us (I'm guessing maybe 5 over factory).
Thanks man!
BfB
Senior Member
Joined: Aug 1999
Posts: 5,438
Likes: 1
From: Palm Coast, FL
Matt, know that I appreciate your dyno data, as most of the time, it's my stuff your testing 
. I put the Densos in our 01, and while I didn't dyno test them, I'm pretty sure I feel the motor "revs" quicker and does feel a tad stronger on the top end.
I would just like to point something out about the testing of these Iridium plugs in relation to the MM&FF article. The truck they tested the plugs on was suffering from high rpm misfire. The Denso plugs CURED the misfire, and therefore RESTORED the mentioned 30hp. The plugs did not ADD 30hp, but they fixed a problem that was TAKING AWAY 30hp. In my opinion, these plugs are worth the money. That of course is pending if they hold up the abuse. But I feel more comfortable having a set of plugs in my truck that I know will stop high rpm misfire before it happens, even if it doesn't show huge power gains on the dyno. Just my thoughts
.
. I put the Densos in our 01, and while I didn't dyno test them, I'm pretty sure I feel the motor "revs" quicker and does feel a tad stronger on the top end. I would just like to point something out about the testing of these Iridium plugs in relation to the MM&FF article. The truck they tested the plugs on was suffering from high rpm misfire. The Denso plugs CURED the misfire, and therefore RESTORED the mentioned 30hp. The plugs did not ADD 30hp, but they fixed a problem that was TAKING AWAY 30hp. In my opinion, these plugs are worth the money. That of course is pending if they hold up the abuse. But I feel more comfortable having a set of plugs in my truck that I know will stop high rpm misfire before it happens, even if it doesn't show huge power gains on the dyno. Just my thoughts
.
Senior Member
Joined: May 2000
Posts: 1,317
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From: Virginia Beach, VA
OK, so now who does the tests to see how much indexing is worth on the dyno?
I'd be more than glad to do it, I just need someone to give me their L for a couple of days!
On the serious side, were the plugs indexed? I've seen tests showing 5-8 HP on a NA small block. Worse case luck of the draw install vs properly indexed could mean 10-12 hp, maybe even more on the L.
I'd be more than glad to do it, I just need someone to give me their L for a couple of days!
On the serious side, were the plugs indexed? I've seen tests showing 5-8 HP on a NA small block. Worse case luck of the draw install vs properly indexed could mean 10-12 hp, maybe even more on the L.
Senior Member
Joined: Jun 2000
Posts: 198
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From: Lombard , IL USA
Matt,
Thanks for posting your results... Does it run smoother with these plugs? You should come out to byron on sunday... I'll be there and my intercooler is leaking... I just wanna get into the 12's w/o nitrious or deep into the 12's with it...
Later, Justin
Thanks for posting your results... Does it run smoother with these plugs? You should come out to byron on sunday... I'll be there and my intercooler is leaking... I just wanna get into the 12's w/o nitrious or deep into the 12's with it...
Later, Justin