Technical > Spud Miller's Cave

ETC Limiter

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denverflatheader:
gregm784 - excellent photo for old saying "picture worth 1000 words."  DF

gregm784:
They seem a little to good to be true, but if Spudster puts his recommendation on them, i'll try it.  for the record, i gave  up on ITA because it seems everyone MFs everything. :)  A bunch of grumps most of the time. 

I'll have mine hooked up to a MSD shift lite with a tach built in, so the accuracy will be known very soon. :)  i won't be relying on it every pass, but i sure hope it works if i need it.  I'll test it periodically (lower the RPM in the warm up and see if it picks up the limiter).

Spud indicated these are built to his specs for the higher output mags, so i would assume that is what this guy is implying with his 'hopped up' version.

Spud Miller:

 The ETC limiters work well if you use some kind of racing suppression core plug wire (YES, you can run them with a magneto!). If you run regular solid core wires, the noise will cause the unit to limit at an RPM lower than what it's set for. You also can't mount them right on the mag or covered with the spark plug wires or coil wire  :D

 If you don't run a suppression wire (should be 50 ohms/ft. or less resistance) then your tach signal will be messed up with the same noise and your tach and shift light will be freaking out.

 A few people have had problems with the units due to noise. I stand behind what we sell...if a guy just can't make one work, then I'll make it right. Low risk.

 All the units we sell are beefed up to handle the high output mags. The regular duty units burn up if you limit an 8 or 10 amp Super-Mag with them.

 Spud

gregm784:
A couple days and mine will be in it's new home

gregm784:
Installed it and warmed the car up.  Nice smooth limiting effect on the motor.  Was odd to hear a blower motor on a limiter...

Went to the track, limiter set for 8000 rpm.  It picked up and held the motor @ 7200 +/- rpm.  Going to raise it and test it again.  If it's off, i don't care; as long as it repeats.

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