Anyone use a higher performance coil?

[98_silvergs]

I was looking throught his site and came across this. Is it a good upgrade or a waste of money, if so, what would be better plugs and wires to go along with it.

http://www.9secondracing.com/cgi-bin/search.cgi?partnum=4325&parttype=125&partcat=32

Thanks

 

[Sinner]

I've heard that the msd coil has the same voltage as stock, I don't know how much truth there is to that but I do know that there is another company that makes a coil that is charcol grey in color and does have a higher voltage than the msd unit I just forgot the name of it but if I can find it again I will post with a link.

 

[Topple]

Your thinking of Screamin Demon... I think it's a few bucks cheaper in price too...
Here's the linky HowellAutomotive

 

[andymoraitis]

I have a 95 GS and I'm wondering if that coil would work. Can anyone tell me if the 420A stock coil uses flat pin connectors?

TIA,

Andy

 

[98_silvergs]

Originally posted by andymoraitis
I have a 95 GS and I'm wondering if that coil would work. Can anyone tell me if the 420A stock coil uses flat pin connectors?

TIA,

Andy

Yes, flat pins

 

[SnoopySLR]

Just got one of these and MSD 8.5 wires. Haven't got the car out of storage yet, but I'll let you know how they work. Look pretty anyways

 

[clownface]

With the Screamin Demon it says you have to open your plug gaps to .068 or something cause of the voltage increase, accurate?

 

[Doug99RS]

If Howell Says that then you are getting that from a reliable source.

 

[clownface]

im not really sure why there are different plug gaps, can someone tell me? i guess its something to do with voltage i guess.

 

[Doug99RS]

If you leave the gap too small then the spark will be too hot. It will burn up both the electrode and the part that is attatched to the threads. With the plugs opened up the spark will both have a larger area to ignite the air/fuel charge but it will also be the right temperature to maintain plug life.

Having a plug gapped too far apart will cause the spark to be too cold or force the spark NOT to jump the gap. Remember electricity follows the path of least resistance. If it's easier to short through a plug wire then the spark will never even reach the plug.
Doug

 

[top_end95]

Originally posted by 98_silvergs
Yes, flat pins

Im pretty sure they're round pins.

The 95 and 96.5 models were round pins and the late 96 and 97+ were flat pins.

 

[clownface]

Originally posted by Doug99RS
If you leave the gap too small then the spark will be too hot. It will burn up both the electrode and the part that is attatched to the threads. With the plugs opened up the spark will both have a larger area to ignite the air/fuel charge but it will also be the right temperature to maintain plug life.

Having a plug gapped too far apart will cause the spark to be too cold or force the spark NOT to jump the gap. Remember electricity follows the path of least resistance. If it's easier to short through a plug wire then the spark will never even reach the plug.
Doug

oo i get it, thanks

 

[98_silvergs]

Originally posted by top_end95
Im pretty sure they're round pins.

The 95 and 96.5 models were round pins and the late 96 and 97+ were flat pins.

Damn, i never knew that. I figured all 420A's were the same.

 

[natef420]

i recently got the screamin demon coil from howellautomotive and i'll say this...you cant buy anything else for 75 bucks shipped to your door thats gonna improve your midrange power like this will. you'll have to have better plugs and wires but its damn worth it. i noticed a big gain in throttle responce and smoother idle. my exhaust even seems to have changed a little. this is one of the best mods ive done.

 

[Redmachine]

Another question here that has to do with ignition.... Anyone using nology wires? I was thinking about getting a set to try out when I get that screaming demon coil pack. Are they any good? I was reading muscle mustang(I own one of those too ) They put a set on and it was the only wires they have ever seen to increase HP(1-2 horse, but this was a v-8 also)

 

[natef420]

ive got obx 10.3 mm wires on mine i bought off ebay new for 40 shipped and im really happy with them. i would say they work just as good as the nology wires and are half the price.

 

[speedy13]

well since nobody with a 2ga asks i will.since our connectors are round and the screaming demons are flat, could i just change tthe connector bouying the flat style from the dealer and then just splice it to were the old round pin connector used to be ?

 

[jab-619]

Another question here that has to do with ignition.... Anyone using nology wires? I was thinking about getting a set to try out when I get that screaming demon coil pack. Are they any good? I was reading muscle mustang(I own one of those too ) They put a set on and it was the only wires they have ever seen to increase HP(1-2 horse, but this was a v-8 also)

good question !!!

 

[SoilentGreen98]

I recently purchased the MSD 8.5mm wires along with the Nology/Silverstone plugs. Have yet to actually put em on there though. What's the best gapping for me if anyone knows? I'm not too sure. I've seen threads on this board where everyone has opinions on the gapping and it's ranged from all kinds of measurements so I'm a bit confused on which is the best or at least correct.

 

[Blueheat23]

I'm not so sure that the coil itself is going to much of anything. You put a higher performing coil on the stock ignition system and it's steal seeing the same 12v constant from the stock ignition (alright it really runs around 13-13.8 but still). When you put an actual MSD ignition in, it amplifies the voltage ALOT giving you more power to the coils. But if you've got nothing giving the coils more juice, then its not really worth it. There was a thread on NABR somewhere that discussed amping up the stock ignition to around 15 volts is seeing the same performance as having the MSD ignition unit. This obviously puts way more of a load on the stock components, leading to increased wear. But bottom line I don't think the performance coil is going to do much without a tweaked ignition setup.

 

[Doug99RS]

The coil supply voltage, on a stock system should not be jacked up any. The 12v supply (also known as battery voltage) is not the end voltage going to the spark plugs. I'm not exactly sure of the specific voltage out put but it's generally measured in kv. Meaning... it's a number in the tens of thousands of volts.

The spark plug gap on the plugs should be 0.043" and I strongly recomend NOT running anything other than NGK or Champion spark plugs that are NOT platinum. Just cheap old plugs. Palatinum plugs will frequently cause mis-fire conditions.
Doug

 

[lawdaman]

Hey Doug, I have a Screamin Demon Coil but only could get the gap opened to about .065 because my cousin was affraid of breaking the tip. Will this hurt my plugs performance any? BTW it's a sound upgrade, I felt it right after the thing. Much better throttle response.

 

[Doug99RS]

Reincarnated dead thread.... BUT
I only opened it up to 0.060". One of my co-workers said that 0.065 might be too much. Oh... and I've got the sc coil now too.
Doug

 

[lawdaman]

Wow... that was like 4 months ago, hey maybe thats whats making my car miss fire?!

 

[Doug99RS]

Yeah, I know. I'm normally one of the winers who complain about a thread being brought back to life but I was ran a search for "spark plug" and stumbled across this one and felt like adding to it.

Definitely, a spark plug gap that is opened up too much will cause a problem. I'd close it down to about 55 or 60 thousandths and see if it fixes the problem.
Doug