Difference Between Hei Distributor And Points
Difference Between Hei Distributor And Points. In an electronic system, you still have a distributor, but the points have been replaced with a pickup coil, and there’s an electronic ignition control module. Note the wire for the points leaving through the side of the distributor where the body is indented to allow the wires to pass through.
I know the hei minimizes wiring, but wiring isn't a big. Gm hei distributors are dui distributors. See below and you can tell the difference where the 45d distributor body has a hole lower down to allow the wires to pass through.
Ponits Style Ignition Allows Current To Flow To More Than One Plug At One Time At High Rpms, Hense Why They Are No Good For Anything Above 4,500 Rpms (Current Can Either Flow At The Points, Or At The Contacts Of The Small Distributor Cap Of Points Style Ignition) Hei:
Hei simply stands for high energy ignition which gm licensed from davis in the early 70's for use in their (crap) automobiles. End up setting the limit at 7200 rpm, more than likely. A set of contact points inside the distributor are open and closed by lobes on distributor shaft as the engine spins.
Sometimes We Take Them For Granted But They Do A Lot Of Work Under The Hood:
I tested my single point distributor on my 12+ compression 350 vs a delco hei same timing curve. I seen guys use a points distributer to trigger an msd or mallory control box.the 2 problems with points are. When the points are open, current is sent through the coil’s primary windings, creating an electric field.
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The hei system produces a more powerful spark, which allows for a wider spark plug gap. Basic vacuum advance function between points and hei dists is exactly the same, only difference is the length of the mouning bar and pull pin, and hole positioning. Has no points to burn out, or cause arcing.
Just Remember Whatever You Screw The Module To Needs To Be Able To Act As A Heat Sink.
Hei is longer than points cannisters, and does not interchange into a points dist, not even close. In an electronic system, you still have a distributor, but the points have been replaced with a pickup coil, and there’s an electronic ignition control module. The hei distributor actually houses the ignition coil underneath that massive cap.
If Your Distributor Has Points, Or A Hall Effect Device As A Points Replacement, Then The Gt40 (Without Resistor) Or Gt40R (With Resistor) Can Be Used.
Notes on wiring for a points distributor; One is the resistance power wire. The other is a wire that supplies power from the starter solenoid “r” terminal, it supplies power only when
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