91GMCSuburban
1/2 ton status
MSD blaster or Screamin' Demon coils.
CK5
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Coil Opinion
- Thread starter 91GMCSuburban
- Start date
84_Chevy_K10
Banned
Neither, nothing to be gained there at all.
91GMCSuburban
1/2 ton status
thanks
$50 for MSD or $85 for demon.
MSD all the way...
$50 for MSD or $85 for demon.
MSD all the way...
Hossbaby50
3/4 ton status
Spend the money on a good set of plug wires. MSD 8.5's, Taylor, etc. You can upgrade the ignition system all you want, if your wires suck you will never see much if any benefit. The spark has to be able to get to the cylinders, and if your wires suck it won't do that as well.
Do wires then coil.
Harley
Do wires then coil.
Harley
91GMCSuburban
1/2 ton status
Did the MSD 8.5 wires this past weekend. So next is the coil. So what's your opinion on coils?
Hossbaby50
3/4 ton status
I ran the MSD blaster SS coil for awhile. Good coil. I also ran the MSD incap HEI coil. It was good to but it failed on me once from the heat of the motor and the AZ heat I believe. I would just use the MSD HEI coil for your 91 and call it good. It is cheap and plugs in. Keep your old coil as a spare though.
Harley
Harley
91GMCSuburban
1/2 ton status
Good thought, thanks.
I agree on buying good wires first--I had put one of those Accel "Super Coils"on an old buick nailhead I had--every time it got damp or rainy,or I went through a puddle,I would lose all spark to the plugs on the side that got wet--and I had Filko "Mag Core"wires that were nearly new,and worked fine with the original delco coil(it had points,and I never had any issues with puddles with the old coil)so I took it off and went back to the old coil--even when it was dry out and it ran ok,I never noticed any real gains from the "Super Coil"--I didnt feel like throwing more money at the car for "Super"sparkplug wires to go with it,maybe it would have been better if I had--but I didnt feel it was worth the gamble. /forums/images/graemlins/crazy.gif
the only time a larger coil is required is when you do something to make the required firing voltage higher
the plugs in a street motor do not need much to fire so the hotrod coil is never going to put out the big power number
the plugs in a street motor do not need much to fire so the hotrod coil is never going to put out the big power number
91GMCSuburban
1/2 ton status
What about being able to increase the gap of the plug? Better burn, fuel economy, etc.
84_Chevy_K10
Banned
[ QUOTE ]
What about being able to increase the gap of the plug? Better burn, fuel economy, etc.
[/ QUOTE ]
All marketing hype.
Fuel burns reguardless as to if there is more or a hotter spark.
What about being able to increase the gap of the plug? Better burn, fuel economy, etc.
[/ QUOTE ]
All marketing hype.
Fuel burns reguardless as to if there is more or a hotter spark.
It also depends a little on how you use your vehicle. If you run high r's you may benefit from a little more power. There are certainly better places to put your money. That being said I've always heard good things about the MSD and have a few friends that swear by them. They mud race and get full use of the higher rpm ranges.
Thunder
3/4 ton status
I have a Screamin demon on my 89 K5. and a MSD TFS blster coil in my Mustang.
Both work good.
I also am using the dynamod from performance distributor. I installed the module and coil at the same time in my K5. noticed a nice improvement in throttle responce and more top end power.
The MSD Made my Mustang pull better on the top end. and run smother all the way around. But the old coil has 140K on it so it was due for replacement anyhow.
Going to order a dynamod for my Mustang. I like the way it workes in my K5.
I also run Taylor wires on both. Good wires are a must have if you start increasing voltage.
My blazer seems to run best with the plug gap set around .050
Both work good.
I also am using the dynamod from performance distributor. I installed the module and coil at the same time in my K5. noticed a nice improvement in throttle responce and more top end power.
The MSD Made my Mustang pull better on the top end. and run smother all the way around. But the old coil has 140K on it so it was due for replacement anyhow.
Going to order a dynamod for my Mustang. I like the way it workes in my K5.
I also run Taylor wires on both. Good wires are a must have if you start increasing voltage.
My blazer seems to run best with the plug gap set around .050
91GMCSuburban
1/2 ton status
thanks for all the opinions.
