spark plug dyno
Drifting
Joined: Jul 2000
Posts: 2,480
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what's the mid one? that's pretty interesting to me.
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Moderator on Acura-TL.com Forums
2000 Red Hot TL w/o nav
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Moderator on Acura-TL.com Forums
2000 Red Hot TL w/o nav
Burlwood Trim and Shift Knob
Wood Trim Set
Gutter Guard Grill
Nebraska Legal Darkest Tint
Goodyear Eagle HP Ultra Plus 225/55/16
Photos Of My RED HOT TL
S/C'd Accord Coming Soon!
Joined: Jun 2000
Posts: 908
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From: Lafayette, LA | Houston, TX (Weekends)
Just so everyone knows,
The Blue graph is WITH the Denso Iridium spark plugs installed.
The Red graph is with the Stock Platinum NGK plugs.
The Green graph is an old dyno from a month ago when my car wasn't running very well,
you can just ignore it.
These plugs are awesome! My stock plugs only had 33k miles on them, and I have had two
different mechanics look at the stock plugs and tell me they were still in good shape.
The gains in torque is unbelievable! This is definitely a mod I can feel when
driving! Sad to say, I couldn't really "feel" a difference after my headers
were installed, but this is a gain I can actually feel when driving.
If the CompTech mufflers don't give me a big gain, I'm seriously going to consider
selling my Jet Hot coated headers and just buy another set of headers that aren't coated.
What is strange is that in Nov 2000 my car was dynoing 170hp and 160ft/lbs with just
intake and pulleys. Something happened that caused a pretty bad power loss but I have
yet to figure it out... I already try running a bottle of fuel injector cleaner through the gas tank but that didn't help.
Also notice how rich my car is running in the upper rpm range...
------------------
Brian =B-)
2000 Accord LX V6 Sedan White - 3,310 lbs w/ driver - 170HP & 160ft/lbs
- Koni Yellows & Eibach Pro-Kit (1.5" drop)
- Red AEM Short RAM Intake (8-10hp & 5-6 ft/lbs gain on a DynoJet)
- Red AEM Tru Power Pulleys (10hp @ 5,600rpms & 11ft/lbs @ 4,600rpms gain on a DynoJet)
- 15.45 @ 88.8mph (Track) [with AEM intake/pulleys] 0-60mph 7.2 sec (G-Tech) [with intake/pulleys]
<FONT COLOR="#800080" SIZE="1" FACE="Verdana, Arial">[This message has been edited by BNut on March 25, 2001 @ ]</font>
The Blue graph is WITH the Denso Iridium spark plugs installed.
The Red graph is with the Stock Platinum NGK plugs.
The Green graph is an old dyno from a month ago when my car wasn't running very well,
you can just ignore it.
These plugs are awesome! My stock plugs only had 33k miles on them, and I have had two
different mechanics look at the stock plugs and tell me they were still in good shape.
The gains in torque is unbelievable! This is definitely a mod I can feel when
driving! Sad to say, I couldn't really "feel" a difference after my headers
were installed, but this is a gain I can actually feel when driving.
If the CompTech mufflers don't give me a big gain, I'm seriously going to consider
selling my Jet Hot coated headers and just buy another set of headers that aren't coated.
What is strange is that in Nov 2000 my car was dynoing 170hp and 160ft/lbs with just
intake and pulleys. Something happened that caused a pretty bad power loss but I have
yet to figure it out... I already try running a bottle of fuel injector cleaner through the gas tank but that didn't help.
Also notice how rich my car is running in the upper rpm range...
------------------
Brian =B-)
2000 Accord LX V6 Sedan White - 3,310 lbs w/ driver - 170HP & 160ft/lbs
- Koni Yellows & Eibach Pro-Kit (1.5" drop)
- Red AEM Short RAM Intake (8-10hp & 5-6 ft/lbs gain on a DynoJet)
- Red AEM Tru Power Pulleys (10hp @ 5,600rpms & 11ft/lbs @ 4,600rpms gain on a DynoJet)
- 15.45 @ 88.8mph (Track) [with AEM intake/pulleys] 0-60mph 7.2 sec (G-Tech) [with intake/pulleys]
<FONT COLOR="#800080" SIZE="1" FACE="Verdana, Arial">[This message has been edited by BNut on March 25, 2001 @ ]</font>
Racer
Joined: Oct 2000
Posts: 422
Likes: 0
From: Edison, NJ
If you were running 170 before w/o the plugs doesnt that mean that the plugs are actually just giving you about 1hp gain? it's possible taht one of your old plugs went bad and was causing the bad response... so is this really that much of an improvement?
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-Fiddler
1998 Accord EX V6 Coupe (HomePage)
------------------
-Fiddler
1998 Accord EX V6 Coupe (HomePage)
OG
Joined: Apr 2000
Posts: 1,684
Likes: 21
From: Foster City, CA
You also have to understand that if you had just put in new regular plugs, you would probably gain a few HP too. You should've done a dyno with old plugs, new plugs and Iridium plugs.
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Honda-Acura.net TL Forum Moderator.
1999 Silver with factory body kit, spoiler and burlwood instrument cluster and shift knob. Joshua Tree Wood dash kit. Hella air horns. Tint all around. Razo competition pedals. MOMO Sport 18"X7.5" with 225/40ZR Pirelli P7000SS. Weapon-R intake. Comptech springs, exhaust and headers. Inspire Tailights, homemade ram-air and Polarg M-12 front turn signals. Comptech front and rear sway bar. Axxis Metal Master front and rear pads. Mugen front grille. 2 Polk/MOMO 10" subs, Orion Xtreme 500.4 amplifier and Alpine CD changer.
My AcuraTL Homepage
NEW: '01 Acura MDX Silver Premium
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------------------
Honda-Acura.net TL Forum Moderator.
1999 Silver with factory body kit, spoiler and burlwood instrument cluster and shift knob. Joshua Tree Wood dash kit. Hella air horns. Tint all around. Razo competition pedals. MOMO Sport 18"X7.5" with 225/40ZR Pirelli P7000SS. Weapon-R intake. Comptech springs, exhaust and headers. Inspire Tailights, homemade ram-air and Polarg M-12 front turn signals. Comptech front and rear sway bar. Axxis Metal Master front and rear pads. Mugen front grille. 2 Polk/MOMO 10" subs, Orion Xtreme 500.4 amplifier and Alpine CD changer.
My AcuraTL Homepage
NEW: '01 Acura MDX Silver Premium
Front 35% tinted windows. Running boards. Roof rack. Tailgate deflector. Moonroof visor. Rear mud guards. Razo premium white headlight bulbs. Matriz ion yellow fog light bulbs(courtesy of Snook). More to come later......
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S/C'd Accord Coming Soon!
Joined: Jun 2000
Posts: 908
Likes: 0
From: Lafayette, LA | Houston, TX (Weekends)
The old plugs were fine, I had two different mechanics take a look at them, the guy who took them out, and another guy who works for SouthWest Infinity in Houston. The old plugs were fine! I can take pictures of them if you want to see them!
My car has lost about 7hp since I dyno'd it in Nov 2000. At that time I was running 170hp, 160ft/lbs. However in Jan 2001 BEFORE my headers were installed, I dyno'd 163hp and 15? ft/lbs. After my headers were installed I dyno'd about 168hp and 15? ft/lbs. I ran a bottle of fuel injector cleaner two weeks ago which didn't help, and this week I tried changing my spark plugs to see if they were bad, which they weren't.
My next plan of attack is put on the CompTech exhaust and see if that bumps me up into the 180-190hp range. Some people have speculated that my car may have too much backpressure from adding the headers with the stock mufflers, but that is long shot in my opinion. If the exhaust doesn't work, then my next bet is a a VAFC or PowerFC (Like the Uni-chip, but made by Apexi) If doesn't help then my next option is to buy ANOTHER set of headers and swap those for the coated ones. Obviously this would be a last resort!
AcuraTL,
Can you post the dyno's after you have your car dyno'd with the old plugs, regular new plugs, and then with the iridum plugs so we can see if you are correct.
That should only come up to about $300-400 or so. 
------------------
Brian =B-)
2000 Accord LX V6 Sedan White - 3,310 lbs w/ driver - 171HP & 160ft/lbs
- Koni Yellows & Eibach Pro-Kit (1.5" drop)
- Red AEM Short RAM Intake (8-10hp & 5-6 ft/lbs gain on a DynoJet)
- Red AEM Tru Power Pulleys (10hp @ 5,600rpms & 11ft/lbs @ 4,600rpms gain on a DynoJet)
- Denso Iridium Spark Plugs (3HP & 7ft/lbs torque increase in peak power)
- Jet-Hot coated CompTech Headers
- 15.45 @ 88.8mph (Track) [with AEM intake/pulleys] 0-60mph 6.9 sec (G-Tech) [with i/h/p]
My car has lost about 7hp since I dyno'd it in Nov 2000. At that time I was running 170hp, 160ft/lbs. However in Jan 2001 BEFORE my headers were installed, I dyno'd 163hp and 15? ft/lbs. After my headers were installed I dyno'd about 168hp and 15? ft/lbs. I ran a bottle of fuel injector cleaner two weeks ago which didn't help, and this week I tried changing my spark plugs to see if they were bad, which they weren't.
My next plan of attack is put on the CompTech exhaust and see if that bumps me up into the 180-190hp range. Some people have speculated that my car may have too much backpressure from adding the headers with the stock mufflers, but that is long shot in my opinion. If the exhaust doesn't work, then my next bet is a a VAFC or PowerFC (Like the Uni-chip, but made by Apexi) If doesn't help then my next option is to buy ANOTHER set of headers and swap those for the coated ones. Obviously this would be a last resort!
AcuraTL,
Can you post the dyno's after you have your car dyno'd with the old plugs, regular new plugs, and then with the iridum plugs so we can see if you are correct.
That should only come up to about $300-400 or so. ------------------
Brian =B-)
2000 Accord LX V6 Sedan White - 3,310 lbs w/ driver - 171HP & 160ft/lbs
- Koni Yellows & Eibach Pro-Kit (1.5" drop)
- Red AEM Short RAM Intake (8-10hp & 5-6 ft/lbs gain on a DynoJet)
- Red AEM Tru Power Pulleys (10hp @ 5,600rpms & 11ft/lbs @ 4,600rpms gain on a DynoJet)
- Denso Iridium Spark Plugs (3HP & 7ft/lbs torque increase in peak power)
- Jet-Hot coated CompTech Headers
- 15.45 @ 88.8mph (Track) [with AEM intake/pulleys] 0-60mph 6.9 sec (G-Tech) [with i/h/p]
Racer
Joined: Oct 2000
Posts: 422
Likes: 0
From: Edison, NJ
I'm a little confused.. you say you tried swapping the plugs to see if they were bad and they werent.. yet you suddenly gained 10hp? .. the same 10hp u lost before somehow?
or did you first swap them with new oem plugs?
------------------
-Fiddler
1998 Accord EX V6 Coupe (HomePage)
or did you first swap them with new oem plugs?
------------------
-Fiddler
1998 Accord EX V6 Coupe (HomePage)
OG
Joined: Apr 2000
Posts: 1,684
Likes: 21
From: Foster City, CA
Originally posted by BNut:
The old plugs were fine, I had two different mechanics take a look at them, the guy who took them out, and another guy who works for SouthWest Infinity in Houston. The old plugs were fine! I can take pictures of them if you want to see them!
My car has lost about 7hp since I dyno'd it in Nov 2000. At that time I was running 170hp, 160ft/lbs. However in Jan 2001 BEFORE my headers were installed, I dyno'd 163hp and 15? ft/lbs. After my headers were installed I dyno'd about 168hp and 15? ft/lbs. I ran a bottle of fuel injector cleaner two weeks ago which didn't help, and this week I tried changing my spark plugs to see if they were bad, which they weren't.
My next plan of attack is put on the CompTech exhaust and see if that bumps me up into the 180-190hp range. Some people have speculated that my car may have too much backpressure from adding the headers with the stock mufflers, but that is long shot in my opinion. If the exhaust doesn't work, then my next bet is a a VAFC or PowerFC (Like the Uni-chip, but made by Apexi) If doesn't help then my next option is to buy ANOTHER set of headers and swap those for the coated ones. Obviously this would be a last resort!
AcuraTL,
Can you post the dyno's after you have your car dyno'd with the old plugs, regular new plugs, and then with the iridum plugs so we can see if you are correct. That should only come up to about $300-400 or so.
The old plugs were fine, I had two different mechanics take a look at them, the guy who took them out, and another guy who works for SouthWest Infinity in Houston. The old plugs were fine! I can take pictures of them if you want to see them!
My car has lost about 7hp since I dyno'd it in Nov 2000. At that time I was running 170hp, 160ft/lbs. However in Jan 2001 BEFORE my headers were installed, I dyno'd 163hp and 15? ft/lbs. After my headers were installed I dyno'd about 168hp and 15? ft/lbs. I ran a bottle of fuel injector cleaner two weeks ago which didn't help, and this week I tried changing my spark plugs to see if they were bad, which they weren't.
My next plan of attack is put on the CompTech exhaust and see if that bumps me up into the 180-190hp range. Some people have speculated that my car may have too much backpressure from adding the headers with the stock mufflers, but that is long shot in my opinion. If the exhaust doesn't work, then my next bet is a a VAFC or PowerFC (Like the Uni-chip, but made by Apexi) If doesn't help then my next option is to buy ANOTHER set of headers and swap those for the coated ones. Obviously this would be a last resort!
AcuraTL,
Can you post the dyno's after you have your car dyno'd with the old plugs, regular new plugs, and then with the iridum plugs so we can see if you are correct.
That should only come up to about $300-400 or so. It is just like a dirty air filter. Sure, it looks fine but if you put in a new, clean filter, you will gain some power.
S/C'd Accord Coming Soon!
Joined: Jun 2000
Posts: 908
Likes: 0
From: Lafayette, LA | Houston, TX (Weekends)
Originally posted by AcuraTL:
The point I am trying to make is even if your old plugs were fine, just putting stock new plugs in could still have gained you some HPs.
It is just like a dirty air filter. Sure, it looks fine but if you put in a new, clean filter, you will gain some power.
The point I am trying to make is even if your old plugs were fine, just putting stock new plugs in could still have gained you some HPs.
It is just like a dirty air filter. Sure, it looks fine but if you put in a new, clean filter, you will gain some power.
Would someone here please replace their worn plugs with some newer plugs of the same brand and please dyno their car so we can tell how much of a benefit just having new plugs will make?
S/C'd Accord Coming Soon!
Joined: Jun 2000
Posts: 908
Likes: 0
From: Lafayette, LA | Houston, TX (Weekends)
Originally posted by Fiddler:
I'm a little confused.. you say you tried swapping the plugs to see if they were bad and they werent.. yet you suddenly gained 10hp? .. the same 10hp u lost before somehow?
or did you first swap them with new oem plugs?
I'm a little confused.. you say you tried swapping the plugs to see if they were bad and they werent.. yet you suddenly gained 10hp? .. the same 10hp u lost before somehow?
or did you first swap them with new oem plugs?
Racer
Joined: Jul 2000
Posts: 288
Likes: 0
From: Austin, TX, USA
Honestly, installing new spark plugs will not make a significant difference, if there is a difference at all. To see a difference in power due to ignition upgrade, you would have to upgrade the coils, the ignition box and etc etc.
------------------
2000 Satin Silver TL
* Factory Bodykit
* Type S rims
* Comptech Springs
* Inspire Tails
* Burlwood knob
* ?% Tint
Ordered: AEM SRI (blue)
------------------
2000 Satin Silver TL
* Factory Bodykit
* Type S rims
* Comptech Springs
* Inspire Tails
* Burlwood knob
* ?% Tint
Ordered: AEM SRI (blue)
Three Wheelin'
Joined: Feb 2001
Posts: 1,471
Likes: 0
From: Naples
I found it interesting as well. Specially when I called to order some today , and they were in high demand.... I was only able to order 50 . They say they are a very hot seller. Very interesting
I added them to www.autocarparts.com
I added them to www.autocarparts.com
S/C'd Accord Coming Soon!
Joined: Jun 2000
Posts: 908
Likes: 0
From: Lafayette, LA | Houston, TX (Weekends)
Originally posted by DragonTL:
Honestly, installing new spark plugs will not make a significant difference, if there is a difference at all. To see a difference in power due to ignition upgrade, you would have to upgrade the coils, the ignition box and etc etc.
Honestly, installing new spark plugs will not make a significant difference, if there is a difference at all. To see a difference in power due to ignition upgrade, you would have to upgrade the coils, the ignition box and etc etc.
Pro
Joined: Apr 2000
Posts: 598
Likes: 0
Originally posted by DragonTL:
Honestly, installing new spark plugs will not make a significant difference, if there is a difference at all. To see a difference in power due to ignition upgrade, you would have to upgrade the coils, the ignition box and etc etc.
Honestly, installing new spark plugs will not make a significant difference, if there is a difference at all. To see a difference in power due to ignition upgrade, you would have to upgrade the coils, the ignition box and etc etc.
But how much more proof do you need than the Dyno right on top of this page?
Instructor
Joined: May 2000
Posts: 200
Likes: 0
AcuraTL has a very good point. an analogy is you cannot compare one month old castro oil to brand new penzoil. the new one has an advantage to begin with. in the case of iridium plug, you think the gain is real because you knew its a superior metal, but spark plugs are complicated. having a longer lasting plug doesnt always mean more horses. besides, one dyno alone is statistically insignificant. if your doctor wants to give you a new drug that has been "proven" to work in one patient. would you trust him enough to take the new drug? iridium plugs may work wonders, but before we jump to conclusion, we definetely need moe data.
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