NGK plug part #s and ecp jetting Questions!

[welterracer]

1# does anyone have a part number for the platinum version of the NGk plugs included in the ECP kit?

2# should i use 160 or 165 jets with the filters? ( i let old jets go with my old sled)

 

[Mighty]

#1 Not sure
#2 165's

 

[grapeape]

The CR10EK plugs seemed to work better than the Iridum plugs I had before, lot cheaper too

 

[welterracer]

Thanks guys!

 

[SUPERTUNER]

There is no Iridium equivalent to the CR10EK NGK plug. If you make the move to an Iridium plug it will be a CR9EIX. Those symbols designate Iridium, but they will only have one projection on it. I have thoroughly tested both on the dyno as well as in field over and over and over and over and over and over and over and over and over and the CR10EK's consistently make more power... End of story.

A GENUINE MIKUNI 165 Main jet is the way to go for elevations up to approximately 5000 feet. Much beyond 5000 feet and starts to become sketchy in that if it is real cold at let's say 6000 feet, you could still get away with the 165 GENUINE MIKUNI main jets. With a high flow exhaust, I have been successful with 170 and 175 GENUINE MIKUNI main jets as well, but this is for low altitudes and very cold air temps.

Freddie

P.S. Did I mention that the main jets should be only GENUINE MIKUNI?

 

[welterracer]

Freddie thanks for the info..

any news on the new carb springs yet... Im waiting on you for the final decision... I want to order the jets and all at the same time!

 

[SUPERTUNER]

I will be pre-dynoing Cubby's sled to test the blue springs as well as my new mod airbox. Will let you all know when this is done and the results.

Freddie