I never doubted a Hp gain from spark plugs, now i want a Part Number so i can get them. along with a CAI. May just remove the resonator if it has one
Horse power gain out of new spark plugs?
I was recently lurking around the internet and researching performance parts and/or techniques on the Honda Fit platform which shares a similar gas engine to the CRZ. I came apon an article on a project car and was a little suprised on one of their methods to achieving a horsepower gain.
Article from honda tuning below
Project 2009 Honda Fit - Denso Iridium Spark Plugs - Honda Tuning Magazine
Kraftwerks dyno chart below
Kraftwerks USA Dyno Results
They bolted on the usual exhaust and intake mods to the car and each mod gained about the same horsepower throughout the dyno power curve. The last mod that they did was an upgrade to a Denso Iridium spark plug. After the dyno they realized that they had achieved even slightly more power increase than a cold air intake at some ponts throughout the power curve.
Reading this made me wonder if the same performance could be unlocked with this sort of mod on the engine in the CRZ. Im not sure exactly how much of the engine is identical to the Fit. Also I was wondering if anyone has swapped out there sparkplugs on a Fit/CRZ to know how difficult it is to replace them. Meaning the performance gain might not be worth the stress and time to change them out. With experience with other vehicles, even simply changing the spark plugs can be more difficult then it needs to be.
I thougth thta the article was at least interesting and worth others opinions and input.
opcorn:
Article from honda tuning below
Project 2009 Honda Fit - Denso Iridium Spark Plugs - Honda Tuning Magazine
Kraftwerks dyno chart below
Kraftwerks USA Dyno Results
They bolted on the usual exhaust and intake mods to the car and each mod gained about the same horsepower throughout the dyno power curve. The last mod that they did was an upgrade to a Denso Iridium spark plug. After the dyno they realized that they had achieved even slightly more power increase than a cold air intake at some ponts throughout the power curve.
Reading this made me wonder if the same performance could be unlocked with this sort of mod on the engine in the CRZ. Im not sure exactly how much of the engine is identical to the Fit. Also I was wondering if anyone has swapped out there sparkplugs on a Fit/CRZ to know how difficult it is to replace them. Meaning the performance gain might not be worth the stress and time to change them out. With experience with other vehicles, even simply changing the spark plugs can be more difficult then it needs to be.
I thougth thta the article was at least interesting and worth others opinions and input.
opcorn:1 - 20 of 80 Posts
Well, if you buy a set of Denso Ik22 plugs for $50 and you get the same kind of 5hp on the dyno as you would for a $300 intake, or $600 exhaust then I could see why your friend jumped on the mod.
:hi5:
opcorn:
Oh Takeda made one of the better intakes for your dollar on the Honda Fit..... that is a tease.
Nice find Human668! I think you just found my next mod for the CRZ. Unless AEM makes something better/sooner.
hmy:
I am
P:1 - 20 of 80 Posts
