eCtune

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

Hi you can try them the most important is the correct heat range for your set up and gap what ignition set up do you use to have problem with 4554? i used them on NA ans turbo Honda without issue

Probably an MSD.. We sell more 4554s than any other plug.

Yeah thats right... I use MSD ignition

what is the problem with your ecu?

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

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

under heavy boost pressure it is normal with orjinal gap adjustment, you should gap down those spark plugs until engine revs normal without having misfire.

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

Wheelman wrote: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

does it cut hardly or just like misfire and revs to the end?

it cuts hardly

what is your setup can you give some information? did you change a new set of NGK Spark Plugs? what is your boost pressure? it could be your fuel pump.

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 cam gear Others Blox Intake manifold Throttle 68mm BLOX Inline fuel filter Edelbrock Fuel regulator Walbro 255 fuel pump Competition Clutch Stage 5 Turbo setup: Neukin Ramhorn Manifold Garrett T3/T4 38mm Turbosmart wastegate 3\" downpipe + exhaust 2,75\" intecooler piping double backdoor intercooler HKS SSQV BOV ECU.... Precission 1000cc injectors rezistor box Boost controller - MAC solenoid 4 BAR MAP sensor MSD Ingition 6300 SCI + External SS Blaster Coil Vision spark plug cables Plugs BKR7E The pressure right now is about 15 PSI only

if you are having the problem with non resistor type like your 8's plugs try this one R5671A-8 instead of r6601-8 or try BKR8EIX iridium.

Did you try without the MSD box? just keep the blaster coil

David974 wrote:Did you try without the MSD box? just keep the blaster coil

he has no problem with different type of spark plugs. I think it is not from the ignition box.