Is NHR Cursed or Something ?

[Rich Biebel]

[QUOTE=Chris "drooze" Wertman;190287][I]tuner.


we have what equates to 16 individual coild (8 COP packs with 2 windings) with 20 Amp Igniters....I can promise we suck on the average 2-3 times the juice of a single coild system at 120kv....that Ive got scope outs of





QUOTE]


No way all those coils are firing at the same time........they fire sequentially with the firing order.....or am I missing something......One MSD hi output coil vs 16? firing sequentially.......basically low current draw for short periods of time on 16? coils, probably not all that much higher overall amp draw than one continuous high output coil....,,Ever see the output of an MSD coil at about 6000-7000rpm? I have an MSD tester and it allows you to fire your ignition without running the engine......at any rpm. You can almost cut metal with the arc it can produce.....If I could add air to it and ionize it.....VIOLA.....Plasma Cutter........

[John Kelley]

Hmmmmmmmmmmmmm......... :-)

http://www.racingjunk.com/category/3...y-Package.html

[Chris "drooze" Wertman]

No way all those coils are firing at the same time........they fire sequentially with the firing order.....or am I missing something......One MSD hi output coil vs 16? firing sequentially.......basically low current draw for short periods of time on 16? coils, probably not all that much higher overall amp draw than one continuous high output coil....,,Ever see the output of an MSD coil at about 6000-7000rpm? I have an MSD tester and it allows you to fire your ignition without running the engine......at any rpm. You can almost cut metal with the arc it can produce.....If I could add air to it and ionize it.....VIOLA.....Plasma Cutter........[/QUOTE]

No we charge 1 coil PACK, which has 2 windings in it, WE light em with 20 amp igniters, most others 8amp, but at 9k WE can also throw a full arc across a .070 gap if we want without blowing out.

Of course we only fire 1 cyl at a time, in order......

So Im firing 2 coils for every cyl fire, AND Im using 20amp igniters, hence I said, 2 to 3 times.....The stock coils fire at about 40kv we are kicking em off at over 90kv. In addition we have a 1 farad buffer capacitor for the igniton system.

One of the BIG problems is there are no aftermarket coils suitable to anything other than 40kv, now Irv Johns and Doug Duell have proven this is adequate, BUT both have also found out that without 16v systems the cars run like crap, cut out and have start issues, both started with 12v systems.....(I may be wrong about Irv, he may be runnign 2 12v batteries) And we have the abilty and do turn our motor over 8k....

I WANTED to run 16 LS2 "Yukon" coils at 120kv but, well since the rule is "Stock Number of Coils" well....they are looking at that rule since it was intended to keep COP people from going to single coils not the other way around.

So, trust me on this 2-3x the draw is correct....Ive got a 3 inch stack of scope outputs from the car that leave no question.......

We had issues caused by other things that at one point we thought was a result of EM interference from this "Maximum Overkill" solution of mine, but it was a "quick and dirty" setup that leaves no issues on the ignition side.

Make sense ?

If I thought I was firing all the coils every cyl fire I would have said 16 or 20x the current draw....

[Rich Biebel]

OK Chris,.....but in my old feeble mind.....all your really doing is the same thing as every other internal combustion engine with a battery powered ignition. Fire the spark at the right time with enough intensity to get a good flamefront. Hemi or not....it is moderate compression, not supercharged or turbo charged and is burning race gas. It doesn't really need anymore than any other engine. If your coils are overkill....your just wasting energy......A blisteringly hot spark is not going to make it run way faster than an adequate spark.

My Lt-1 had an MSD 7al and the box went bad. I installed a Digital 6 and the recommended coil.......The spark it could generate was as I said......more than enough to fire any sparkplug in any stocker engine........


Art.....I have no doubt your combination is somewhat different but it's a Turbo and a small engine......so I would think it is very sensitive to small changes.......


I have a story I can tell about MSD's needing a minimum of xx volts to fire but just to make the story short........lets just say that I have made runs down the race track with a very low battery and no misfires whatsoever.......One of those runs was the final round of a National event......

[NewHemi]

Hey Rich, I am interested...

Tell us about it.

I am serious, it sounds like a good story.

David
The New Hemi Guy

[Rich Biebel]

David I can't really tell the story on here.

Low or weak batteries was often a problem in the past....

If you go rounds it happens...........

Gear reduction low current draw starters and alternators and good batteries are a must! Stock starters and some batteries are just junk and don't belong in rcaecars......

[art leong]

Originally Posted by Rich Biebel

OK Chris,.....but in my old feeble mind.....all your really doing is the same thing as every other internal combustion engine with a battery powered ignition. Fire the spark at the right time with enough intensity to get a good flamefront. Hemi or not....it is moderate compression, not supercharged or turbo charged and is burning race gas. It doesn't really need anymore than any other engine. If your coils are overkill....your just wasting energy......A blisteringly hot spark is not going to make it run way faster than an adequate spark.

My Lt-1 had an MSD 7al and the box went bad. I installed a Digital 6 and the recommended coil.......The spark it could generate was as I said......more than enough to fire any sparkplug in any stocker engine........



Art.....I have no doubt your combination is somewhat different but it's a Turbo and a small engine......so I would think it is very sensitive to small changes.......


I have a story I can tell about MSD's needing a minimum of xx volts to fire but just to make the story short........lets just say that I have made runs down the race track with a very low battery and no misfires whatsoever.......One of those runs was the final round of a National event......

Rich you have no trouble knocking Drooze for his lack of class racing experience.
I would suggest you read a rule book before commenting about my car.

[Rich Biebel]

Art I don't know why your feeling like I said something wrong about your car.....all I meant was it's a very different combo and might be effected more than others on some things.


I try to have fun with Drooze......if you think I'm being harsh.....so be it......

[art leong]

Originally Posted by Rich Biebel

Art I don't know why your feeling like I said something wrong about your car.....all I meant was it's a very different combo and might be effected more than others on some things.


I try to have fun with Drooze......if you think I'm being harsh.....so be it......

You did say something very wrong about my car.
Read a rule book

[Tim Kish]

Art - I think your turbo is broke, your car should go much faster!