RE: high speed miss

[Rich Kinsley <rlkinsley@xxxxxxxxx>]

Don Dulmage wrote:
> 
> 
>  Ignitions do NOT require more power at high RPM , they actually require 
>  less. I qoute from Design and tuning of Competitiion engines by PH 
>  Smith. At high RPM the mixture will almost go off by itself. An 
>  osciliscope willl show you this very quickly . Breakaway or off the line 
>  at slowspeed requires the highest ingntion power. 
> If you have a high speed miss it could be one of the following. 
> Tach is bothering the ignition box, You have too much total advance 
> (more than 36 alltogether) The engine is jetted over irch. The ingition 
> control box has the initial M S or D on it. 
> The reluctor is striking the pickup at high RPM. You are trying touse 
> the vacuum advance as well which gves you far too much advance for a 
> hopped up motor of the mopar variety. 
> The cntrol module youare using has a limiter in it. I use exclusive to 
> all others a Standrd Ignition Products module LX101. It is good to 10000 
> RPM although Ihave never been there. 
> A MoparChrome box would be a comparable part should this piece not be 
> available in your aea. Also recheck you wiring.  power is supplied at 
> the pointy end. The lower two are pick uo p wires andthe green wire is 
> no longer used. 
> If all else fails try reversing the pick up wires. 
> All the best. This is the hardest work you engine will ever see. NOTHING 
> is harder on an engine than a Dyno. 
> Don

==================================================================== 
I tried to find the box you mentioned but had to settle for a NAPA 
Echlin box. It is hooked up right as there are no changes from previous 
and it was doing OK then. I know my electrical system is pretty frail as 
the bulkhead connector fried off for the main power and is band-aid 
repaired for the moment. I want to redo the harness asap with the info 
regarding the ammeter fix etc.. 

In my last dist the reluctor did smack the shaft and busted chunks off 
it. I have a new Mopar dist now incl a new 35amp alt, new elect volt reg 
and new ballast resistor. It runs good at low speed but not at high. I 
will lean out my secondary side and try that first.

Rich Kinsley '64 Dodge Polara 4dr 318poly w/goodies


----
Please address private mail -- mail of interest to only one person -- directly to that person.  I.e., send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!

'62 to '65 Mopar Clubhouse Discussion Guidelines:
http://www.1962to1965mopar.ornocar.org/mletiq.html.