eCtune

R5671A-8 are the spark plugs that I have problem with becouse they are non-resistor I have no problem with BKR7E but just want to try some non-projected one and thats R6601-8 are

Engine: Block D16Z6 decked 0,5mm Block quard BLOX Vitara pistons 75,5mm ACL RACE bearings std. Eagle rods ARP head studs Cometic head gasket Gates timing belt Head D16Z6 Port and polished (my work) Supertech Oversized valves +0,5mm Supertech valvespring + retainers Bisimoto camshaft stage 2,4 Skunk2...

it cuts hardly

I try to gap the spark plug as much as I can... there were maybe .020, maybe less and still the same. With BKR7E it was OK with gap about .030. I said it feels like a missfire, but I can feel that the ECU cuts it

it feels like a missfire still, it cuts ECU from power or something like that

Yeah thats right... I use MSD ignition

Is there anybody who try to use these spark plugs - R6601-8 (3033)? I try to use a 4554 (R5671A-8) but I am having problem with my ECU etc... becouse 4554 are non-resistor. 3033 are a little expensive, but they non-projected and resistor type and it is heat range 8