Originally Posted by ISMSOLUTIONS

BTW - a larger, hotter and more consistent stronger spark, is what burns more fuel, more efficiently - which in turn, produces more horsepower, produces better starts, promotes smoother idle, provides for smoother acceleration and throttle response...oh yea, and better emissions.

You can accomplish this by....NOT CLOSING THE GAP ON THE SPARK PLUG, but opening it - and increasing the ignition systems to accommodate the gap to provide an even larger spark - providing, yet again, even more benefit.

Ideally - you want the coldest plug possible without fouling. Smaller gaps, produce smaller, faster sparks. The sparks burn out faster. This is useful for trying to solve detonation and pre-ignition and other ignition issues - that are also inherent in FI/nitrous, high compression, etc. cars. Hotter plugs are poster children for detonation...so I would never make that suggestion....but I guess that's ok for PASTA BOY!

Whether or not it's HKS or MSD - the point of this thread is: Ignition Systems

1 - they are useful

2 - which units are 'better' - they are about the same, BUT, the HKS is a safer bet and far more widely used on Z's and G's because of it's size and vehicle specific harness. The MSD - is much cheaper however, and larger, and there's little room in the engine compartment as it is. The MSD is far more widely used, in the import crowd, on Honda's, etc., and far more in the American muscle arena.

3 - If colder plugs and hotter sparks are better..then why put in hotter plugs and smaller gaps, on a stock ignition system....

4 - The stock ignition system - is VERY good to begin with. Better spark, never hurts performance and general operability...never.

Ultimately - you have to figure out if the price is worth the gain, if the purchase is bling related, if the purchase is for protection based on the build....

Lastly...don't eat PASTA while installing your ignition systems!

Originally Posted by GEE PASTA

You only need enough voltage to fire the plugs under a full load in high gear.
NA, the factory voltage is more than what you need.
The vq likes the plugs degreed in with the open point of the plug between the exhaust &intake ports.
you will find more gains with indexing your plugs NA than installing a multi spark unit.

The MSD unit is wonderful in high compression engines with wild cam shaft timing.

I would try a new set of plugs one step hotter, and close the gap .002 tighter.
try to get just the electrode in the combustion chamber without any part of the threads of the plug exposed.
polish any high spots off the tips so they do not start glowing in the chamber.
Simple is good and it works.

PS do not listen to that moron ,,,,,,,,,,,,,,,,Rick

Originally Posted by OCG35

Rick, I'm not taking sides here... some of your posts have had merit (IMO)... but Pasta has a bunch of experience that I wouldn't dismiss... apparently you two have some old grudge - I hope it doesn't perpetuate because I know several people that don't post out here anymore because of conflicts with others... I'd like to see they come back.

When I first got on this forum there were many extremely knowledgeable people sharing very good information... unfortunately it has gone a different direction and is kind of a soap opera most of the time... I really wish the tech forums could get back to the old days