lightspeed need cooling?

[prkaye]

Does my lightspeed elec ign module need a blast tube feeding coolinbg air to it (the way a mag does)? I don't want to waste cooling air pressure if the lightspeed doesn't need this.

[scard]

I'm pretty sure Lightspeed recommends mounting the controller on the cold side of the firewall. If it was on the hot side, sounds like a good idea. If you mean the coil, no, it isn't as heat sensitive.

[prkaye]

I'm actually wondering about the part that mounts to the back of the engine, where the mag would normally go... I think its called the hall effect sensor. Does this need a blast of cooling air the way a mag does?

[Tom Martin]

phil I do not believe the Hall sensor needs a blast tube but if you have the Plasma III system Klaus reccomends directing some cooling air into the unit using a standard avionics or computor type fan. The plasma III unit has a plastic tube tube that can be used for air intake.

[RV-4]

Hello Phil
I've got dual LSE system on my RV-4 with Hall Effects and I have a blast tube directed at each of them.. The loss of cooling air is to my believe minimal vs the Hall Effects benefits of being kept cool IMHO

Bruno
RV-4 C-GDBH
rv4@videotron.ca

[vic syracuse]

I did put a cooling blast tube on the LSE Hall effect sensor on my RV-7A. I don't know if it is absolutely needed, but I am a firm believer in cooling electronics to prolong the life.

Vic

[breister]

Had a LS 2 with Hall Effect; flew 450 hrs no blast tube no problem.

LS version has no bearing on the Hall Effect sensor, which is the same unit no matter the control unit used.

[LifeofReiley]

Klaus states he tests the control box past 200 degrees F for failure mode, I run 102 degree F in flight on the firewall. This install was discussed with Klaus, and he states it's not an issue. Ground taxi you will see 140 degrees F on the high side MAX on my install. The Hall Effect set-up WILL be much higher in temp at the unit.

[flion]

Originally Posted by Tom Martin

The plasma III unit has a plastic tube tube that can be used for air intake.

That vent is only on the 6-cylinder box. Klaus' website has a 'service bulletin' link that discusses it and says it is not required for the 4-cylinder versions.