The standard Denso & NGK's are not pregapped. They're close within a few thousandths but not spot on. I've changed mine twice and out of the sixteen plugs only two hit the mark.
Larry
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2004 Tundra V8 Limited Access Cab 4X4, Michelin 265/65/R17 LTX-AT2's, Auto Dim Comp/Temp Mirror, Aero Turbine #2525 muffler, Access Roll Up Cover, Optima D31A battery, Multi-Vex adaptive outside mirrors, Eclipse AVN5510 Nav unit and Sirius SIR-ECL1 tuner, as of 10/07 pictures in my photo gallery
If a combo of all these whizz bangs met their claims you'd have to siphon gas out of your tank every second day and sell the excess horsepower on the third????
If your engine doesn't consume ANY oil it will seize???
Some people should not be allowed access to tools without books!!!
Denso Iridium IK20's are pre-gapped to .044. I just pulled a Denso iridium out of my 04 Camry - The gap was still .044 at 30,000 miles!
Brad
Brad , do you have any idea why the Denso Iridium's are gapped at .044 and the NGK Iridium's are .032? The stock gap on my 04 DC is .031.
I installed the NGK's and am pleased to date.
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2004 DC Limited 4x4//JBA Headers & Y PIPE//Firestone Rear Air Lift//Hellwig Sway Bar//Protech EZ 1" Lift//Air Induction//Ledco Custom Rack
Raider Canopy//Street Scene Grill//Magnaflow Muffler//Piaa Lights//Amsoil Fluids//Nokian WR Shoes//Unichip//Westin Bull Bar.
Confuses me as well. I've asked numerous people in the know here but no answer to the gap difference. The answer I got back from the Denso tech was "Oh really?"
The dealership suggested the NGK's only because they are gapped closer to the original plugs. As for price, the GM for NAPA here says NGK have deliberately priced their Iridiums to gain market share which explains the savings over Denso.
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2004 DC Limited 4x4//JBA Headers & Y PIPE//Firestone Rear Air Lift//Hellwig Sway Bar//Protech EZ 1" Lift//Air Induction//Ledco Custom Rack
Raider Canopy//Street Scene Grill//Magnaflow Muffler//Piaa Lights//Amsoil Fluids//Nokian WR Shoes//Unichip//Westin Bull Bar.
I'm running the stock denso's now and I gap mine to .031. These denso's replaced the bosch platnium4, which were in there for 70k+ and still look good.
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I got my NGK Iriduim for my wife LX 470 and my tundra. LX specifies .044 and tundra .032. I talk to the parts counter person where i got the plugs online and ask if the plugs need to be gap. His comments are "they are pre gap from the factory. You should not have to do anything!"
Once I got them, just out of curiosity, I check them anyway. "Just be very very very careful touch the tips of the iriduim. They are coated iriduim, and very thin and delicate!"
The LX NGK gap was off by .036 to .047.
The Tundra NGK gap was of by .028 to .035
I am unclear as to what gap is being used by all in this thread but according to the denso site they are
saying .032 gap for the v8 and .044 for the v6.
I was searching for the IK 22's for my S/C'd v8 and don't see anything.
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Unichip'd TRD Supercharger & 5.9 Overboost Crank Pulley,TRD Boost guage and Oak color matched pod,TRD LSD,Valvebody Upgrade by IPT in NY, JBA headers,Y pipe, K&N(Evol) SS catback exhaust, Helwig Rear antisway bar, Rear custom Leafpack,TRD Coils,Cornfed Spacers's with Y/B Bilsteins,Westin Outdoorsman Bushbar and Nerf Tubes, TRD Ivan Stewart 16X8 Rims and 285/75/R16 Revo AT tires.Pioneer 5500 MP3 Head unit/Q-Logic sub enclosure with dual crossfire subs/ 700 watts of Crossfire Amps/Bazooka 6.5's and 5.25's in Kickpanels/ CodeAlarm Remote starter/antitheft system.
I got confused because our Camry uses the same plug, IK20 gapped to .044 but the Tundra is gapped at .032...go figure...
Brad
Usually the recommended plug gap will be influenced by the combustion chamber design of the individual engine and the available spark voltage.
Larry
__________________
2004 Tundra V8 Limited Access Cab 4X4, Michelin 265/65/R17 LTX-AT2's, Auto Dim Comp/Temp Mirror, Aero Turbine #2525 muffler, Access Roll Up Cover, Optima D31A battery, Multi-Vex adaptive outside mirrors, Eclipse AVN5510 Nav unit and Sirius SIR-ECL1 tuner, as of 10/07 pictures in my photo gallery
If a combo of all these whizz bangs met their claims you'd have to siphon gas out of your tank every second day and sell the excess horsepower on the third????
If your engine doesn't consume ANY oil it will seize???
Some people should not be allowed access to tools without books!!!
Denso's
Oops!
Linear Mode
