What else to boost performance???
Thread Starter
Burning Brakes
Joined: Nov 2008
Posts: 965
Likes: 28
From: Mt. Pleasant NC
To All...
Well been reading a lot of reviews on spark plugs. Been comparing the Denso Iridium vs. NGK Iridium vs. Pulstar Pulse. The Pulstars are showing most torque and HP gains with about 12-14 hp gains while the other two are about identical in results. However, the pulstars are about twice as expensive as the denso's. Right now I currently have the AC Rapid Fire's as listed. Thoughts anyone??? Anyone ran any of these plugs in their's? What kind of results did you see?
Race Director
Joined: Jun 2000
Posts: 10,046
Likes: 675
From: FL
Spark plugs will only get you horsepower if the old plugs are fouled. It is all just advertising BS.
A new intake will only give you 10 hp or so with that cam of yours.
You want to make horsepower, you have to spend $$$. The best thing you could od is new heads. Everything else will complement that.
A new intake will only give you 10 hp or so with that cam of yours.
You want to make horsepower, you have to spend $$$. The best thing you could od is new heads. Everything else will complement that.
Melting Slicks
Joined: Jul 2006
Posts: 2,373
Likes: 6
From: Baltimore MD
Well been reading a lot of reviews on spark plugs. Been comparing the Denso Iridium vs. NGK Iridium vs. Pulstar Pulse. The Pulstars are showing most torque and HP gains with about 12-14 hp gains while the other two are about identical in results. However, the pulstars are about twice as expensive as the denso's. Right now I currently have the AC Rapid Fire's as listed. Thoughts anyone??? Anyone ran any of these plugs in their's? What kind of results did you see?
Race Director
Joined: May 2005
Posts: 10,674
Likes: 122
From: Millington Illinois
St. Jude Donor '08-'09
A performance timing curve can make a huge difference, especially if you have made other changes to the car. Buy a Mr Gasket distributor spring set at the auto parts store (about $8). Unplug your vacuum advance. Hook up a dial back timing light. Rev the car till the mechanical stops advancing. If it is above 3000 RPM put the two gold springs on the centrifical weights. Test again. You want the mechanical advance all in at 2500 to 2800 RPM for a total of 36 degrees initial and mechanical. Don't worry about setting your initial to the book specs! The key is 36 degrees all in by 2800 RPM.. If it is coming in too fast swap out 1 gold spring for 1 silver and repeat. Increase to heavier springs until it is all in @ 2500 to 2800 RPM. Hook up the vacuum advance and check it again. You shouldn't have over 52 degrees or so total advance with the initial, mechanical and vacuum advance hooked up. You can go to the timing link at the top of the C3 tech page for more detail but this will help a lot. Suprised no one has mentioned this yet. This is one of the cheapest, easiest ways to improve bottom end and midrange power. Them fancy spark plugs are a waste of money.
