I have a set of spark plug index washers and was wondering if they do make HP on B18C1 Motors.

 

I saw one of those "Horsepower" TV shows where they talked about indexing the spark plugs. I am also interested if this a tried and true method of making a small power increase. I guess the main reason is to get the most efficient burn. I can understand how having them all indexed to the same position would also help ensure each cylinder is firing evenly(making same power). Any real experts out there on this subject?
Jeremy

 

I always index my plugs. Tip of the electrode facing the exhaust side of the combustion chamber.

I've had good luck with Honda/NGK BKR7E-N-11(Honda p/n 98079-5714J)

-Mike K

 

I wouldnt worry about it too much on b-series motors. Since the plugs
sit in the top of the chamber they arent too shrouded by anything.
These arent those V8s you see on those tv shows

 

This is a fine tuning detail that will not make noticable gains, but it definitely isn't going to hurt anything. If your car is FI, then I would say it was worth it.

 

Yeah, from now on I'll just forget about using them plugs. Tanks for the input Steve......indexing those plugs are pretty time consuming.