Dylan wrote:I had that with bosch once. I ran there's in a V8. For example NGK heat 6 was BOSCH heat 7 i think. One of the big manufacturers has a comparison chart.
I ran the Bosch super 4's in a 5 litre and they were fantastic. That engine used to kill a normal set in 1 tank it was that badly tuned. I got a long time out of the 4's.
Way before i knew about tuning, and that was after a pro dyno tuned it. Idle must of been aroun 10:1 AFR.
I had bosch super 4 in my v6 once. didn't go so good. used more fuel and idled rough.
I still have them sitting on a shelf with less than 10k on them.