MSD box
Thread Starter
Pro
Joined: Jan 2010
Posts: 618
Likes: 1
From: Jacksonville FL
MSD box
Sometime soon I got a tune up happening. My friends say I should install a MSD box a high power output coil and plug with wire to handle the power.
I have no clue how a MSD box work and or the pros and cons. Can someone shine some light on this for me before I mess something up.
thank you
I have no clue how a MSD box work and or the pros and cons. Can someone shine some light on this for me before I mess something up.
thank you
Pro
Joined: Oct 1999
Posts: 515
Likes: 0
From: Nashua NH
Basically what it does is, at 300RPM's or lower, it fires off multiple sparks, rather than one, which results in crisper throttle response and better combustion of fuel mixture. Above 300 RPM's, it fires off one high energy spark, once again to allow more power through a more efficient combustion cycle. That being said, on a stock motor, you won't notice any gains from installing it...stay with the stock HEI setup, and invest in more beneficial performance mods (cat back exhaust, K&N air filter, cam, 1.6 RR, etc.)that will give you a "seat of the pants" feel. IMO, if you did like your buddy says, you'll be PO'd because you spent almost $200 for nothing noticeable.
Tech Contributor
Joined: Oct 2008
Posts: 3,729
Likes: 190
From: Custer, WI
Basically what it does is, at 300RPM's or lower, it fires off multiple sparks, rather than one, which results in crisper throttle response and better combustion of fuel mixture. Above 300 RPM's, it fires off one high energy spark, once again to allow more power through a more efficient combustion cycle. That being said, on a stock motor, you won't notice any gains from installing it...stay with the stock HEI setup, and invest in more beneficial performance mods (cat back exhaust, K&N air filter, cam, 1.6 RR, etc.)that will give you a "seat of the pants" feel. IMO, if you did like your buddy says, you'll be PO'd because you spent almost $200 for nothing noticeable.
Is it under 300 RPM's? My car never runs under 300 RPM's....
Thread Starter
Pro
Joined: Jan 2010
Posts: 618
Likes: 1
From: Jacksonville FL
After the tune up Ill mainly be saving for the TPIS mini ram complete set. I got a 1990 L98 carefree motor. I am looking more for better fuel mileage then power. If I gain more HP with upgrading them it nothing more then a plus.
