Discuss all Forced induction modifications for the Fit
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How do you know it's time to install new cold spark plugs?
Once you go turbo you should go atleast 1 step colder plug. If you haven't already, do it asap.
You should check your plugs every 6-10k, and copper plugs should be replaced around every 15k, The Iridium ones probably around every 20-25k. It really depends on the condition of the plugs and how hard you drive your car
how do i give you REP Points ??
your info here are great !
Gotta click on the little scale on the top right of the persons post. Located between (permalink) and the "!"
I ordered my plugs through Napa Autoparts... it was the only place in town here in Calgary that carried these plugs. $3.20CAD each! I bought 8 of them since they'll need to be changed more often than the Iridium ones..
I paid around $50 for my Iridium plugs (for 4), so these new plugs are about 1/4 the cost.
Also, Ben mentioned to me that these V-Power plugs are already pre-gapped and that he felt that they ran smoother in his car than the Iridium ones did. This is what made me want to try these ones out.
I just installed some of the NGK BKR7E-11 copper plugs. They came pre-gapped, but to the stock Honda spec. You should gap them closer, somewhere around 0.030", to avoid spark blowout at high RPM and boost pressures.
That said, these plugs seem much more responsive than my old Iridiums (stock heat range). Minus the phantom O2 sensor CEL my car threw (has since dissappeared - not sure what happened there), I've had zero problems since the install, and the car does seem much smoother, and the transition into boost seems much more natural.
I'm not looking forward to changing them every 10-15k, so I'll probably try Iridiums in the same heat range this spring / summer to try and extend that a little bit.
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'07 MR Fit Sport MT
T1R Turbo kit, 6psi
AEM F/IC tuned by yours truly!
155hp, 157.1 Ft-Lb
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Gotta click on the little scale on the top right of the persons post. Located between (permalink) and the "!"
I ordered my plugs through Napa Autoparts... it was the only place in town here in Calgary that carried these plugs. $3.20CAD each! I bought 8 of them since they'll need to be changed more often than the Iridium ones..
I paid around $50 for my Iridium plugs (for 4), so these new plugs are about 1/4 the cost.
Also, Ben mentioned to me that these V-Power plugs are already pre-gapped and that he felt that they ran smoother in his car than the Iridium ones did. This is what made me want to try these ones out.
Yeah man please let us know how it runs !!!!
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One Cool Daily Driver
Honda tuning is a LifeStyle
Nissan tuning is to go stupid FAST !
SMOOOOOTH! So much more smoother power transition when the turbo kicks in. Before the Iridium IX plugs were fairly rough from the minute I installed them. But I have gone through a lot with these plugs too, I have been all over the AFR map so these plugs went through some tough times.
But right after installing the V-Power Racing copper plugs the car feels like it has never felt.. its so much smoother and the power delivery feels "natural". I recommend these plugs to anyone running a turbo. These plugs all came pre-gapped to 0.030" which is exactly what our car needs.
Here's an image of my old Iridium plugs.. sorry for the poor quality.. it was taken from by crackberry.. These saw about 18,000 kms (10,000 miles), have gone through very rich idling as we hit -35 celsius a few times this winter.
Gotta click on the little scale on the top right of the persons post. Located between (permalink) and the "!"
I ordered my plugs through Napa Autoparts... it was the only place in town here in Calgary that carried these plugs. $3.20CAD each! I bought 8 of them since they'll need to be changed more often than the Iridium ones..
I paid around $50 for my Iridium plugs (for 4), so these new plugs are about 1/4 the cost.
Also, Ben mentioned to me that these V-Power plugs are already pre-gapped and that he felt that they ran smoother in his car than the Iridium ones did. This is what made me want to try these ones out.
how many KMs would u recommend changing it?
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One Cool Daily Driver
Honda tuning is a LifeStyle
Nissan tuning is to go stupid FAST !
Yup those are them.. I would recommend changing them every 15k-20k (kms). I would probably check them at 10k just to make sure, but at under $15 for a set, I'd probably just change them every 3rd oil change or something (I do my oil changes every 4000 kms.)
One Cool Daily Driver 
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