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Old 02-18-2017, 05:30 AM   #1
rabbito
 
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Drives: 2012 Toyota Yaris Sedan (Vios)
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what spark plugs are you using with your current engine setting

i am using ngk iridium spark plug with minor E85 tuned engine..some are saying how we should use colder spark plugs for turbo or tuned engine etc.
higher octane = colder plugs? opinion on spark plugs?

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Brain: ATD E85 Timing Advance ECU
Engine: 1JZ Injectors, Header, Center Pipe, K&N Drop In, E85 Injector Converter
Suspension: Hankook Tires, Performance OEM replacement Shocks & Springs F: 1.5 B: 1.4, Mu Spec brake pads, Front tower & Rear sway bars, Rays nut & lock
Electric: Volt Stablizer & Multi gauge obd2
Cosmetic: Toyota red emblem
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Old 02-18-2017, 07:52 AM   #2
IllusionX
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Stock came with NGK. I put Denso Iridium in.

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Old 02-18-2017, 01:25 PM   #3
SirDigby
 
Drives: 2007 yaris 3 door
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Quote:
Originally Posted by rabbito View Post
higher octane = colder plugs? opinion on spark plugs?
no. higher compression/cylinder pressure= colder plugs.

I installed a new set of OEM Toyota plugs when I bought my car. plugs don't really have any performance gains until you change something drastically in the engine. if you have a distributor, silver plugs have the least resistance and can give you slightly quicker spark timing, but in a DIS system the computer compensates for the built in resistance of platinum/iridium; if, however, silver is installed it will create a detonation issue because of the lack of resistance.
the advantage comes with a multi-spark system. the only one I have found is okada projects coils, but they are like $900 (but I've heard they work very well)
http://www.okadaprojects.com/usa/products.htm
http://www.ebay.com/itm/NEW-OKADA-PR...xVAIBT&vxp=mtr
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Old 02-18-2017, 02:02 PM   #4
rabbito
 
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Quote:
Originally Posted by SirDigby View Post
no. higher compression/cylinder pressure= colder plugs.

I installed a new set of OEM Toyota plugs when I bought my car. plugs don't really have any performance gains until you change something drastically in the engine. if you have a distributor, silver plugs have the least resistance and can give you slightly quicker spark timing, but in a DIS system the computer compensates for the built in resistance of platinum/iridium; if, however, silver is installed it will create a detonation issue because of the lack of resistance.
the advantage comes with a multi-spark system. the only one I have found is okada projects coils, but they are like $900 (but I've heard they work very well)
http://www.okadaprojects.com/usa/products.htm
http://www.ebay.com/itm/NEW-OKADA-PR...xVAIBT&vxp=mtr
thank you for the wonderful right up 👍👍
right now i recently got piggyback ecu that tuned E85, ignition and injection(1jz) to the fullest without any internals hitting 7,000rpm..i am flying(only stage 1 point of view) right now haha..one morning when i started my car, i hear slight sewing machine sound..a slight tick that got me a little worried...thats when i read about the colder plugs on E85 with iginition timing thing..

stage 1 meaning for other readers: every bolt on external; intake, header, pulley etc..

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Brain: ATD E85 Timing Advance ECU
Engine: 1JZ Injectors, Header, Center Pipe, K&N Drop In, E85 Injector Converter
Suspension: Hankook Tires, Performance OEM replacement Shocks & Springs F: 1.5 B: 1.4, Mu Spec brake pads, Front tower & Rear sway bars, Rays nut & lock
Electric: Volt Stablizer & Multi gauge obd2
Cosmetic: Toyota red emblem
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Old 02-21-2017, 10:53 PM   #5
Fluxtasy
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Drives: Yaris Sedan '10
Join Date: Aug 2014
Location: Malaysia
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Quote:
Originally Posted by SirDigby View Post
no. higher compression/cylinder pressure= colder plugs.

I installed a new set of OEM Toyota plugs when I bought my car. plugs don't really have any performance gains until you change something drastically in the engine. if you have a distributor, silver plugs have the least resistance and can give you slightly quicker spark timing, but in a DIS system the computer compensates for the built in resistance of platinum/iridium; if, however, silver is installed it will create a detonation issue because of the lack of resistance.
the advantage comes with a multi-spark system. the only one I have found is okada projects coils, but they are like $900 (but I've heard they work very well)
http://www.okadaprojects.com/usa/products.htm
http://www.ebay.com/itm/NEW-OKADA-PR...xVAIBT&vxp=mtr
T.M. Works also have a lot of ignition products and what I like about them is that upgrades can go in stages. But of course if you are force inducted and want to go for the best then just go Okada!

http://tmworks-web.jp/pages/products_eng.htm
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