Boatally Insane

iTrader: (1)

Looking for spark plugs...

555 cid AFR heads with a Procharger.. likely about 8lbs boost..

Would like to use a resistor plug due to EFI and Stereo..

Thinking of Maybe NGK BR10ES ?

Any thoughts ?


THANKS !

Doug

horsepower1

Way too cold. I'd run an 8 if you're WOT a lot, maybe a 7 if not.

Scarab28

+1 on the BR8ES

14 apache

iTrader: (1)

I run 9s in my NA engines was never a problem. How much power you making? The plugs I used were iridium NGK.

horsepower1

Try 7's in your n/a engines. They'll love you for it. I run 7's in a 13:1 970hp 565 that turns 7500.

Black Baja

iTrader: (2)

11's in my N/a motor in the cylinders that detonate. 10's in the rest.

horsepower1

Who is telling you guys to run these ice cold plugs? I wouldn't run 11's in a 2500hp blown alky motor...

Black Baja

iTrader: (2)

The motor told me.

14 apache

iTrader: (1)

Please explain why you would run a hot plug in something that don't have any issues with loading up and they come out clean? My engines where 600ci 960hp on pump gas at 6700rpm 10to1cr.
That 970hp motor you are talking is it a boat engine and is it a race gas?

mike tkach

iTrader: (3)

baja,be careful,some engines speak many languages.lol.