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<< Lancair Builders' Mail List >>
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> 1. What improvements have you seen?
> 2. How big is the controller (dimensions)?
> 3. Is it mounted on the engine side of the firewall?
> 4. Did you decide to monitor the CHT?
Hi Scott,
I've got the LASAR ignition system on my O-320. I've had it on from the very
first start so I can't really tell you about any "improvements" but here's
what I've noticed.
1. It starts on the first blade, idles smoothly (for a 4 banger), has
plenty of power for takeoff and gives me miserly fuel flow at cruise.
2. The controller dimensions are: 5 3/4 wide, 4 1/2 high and 3 1/4 deep.
In addition there is a
3/4 x 2 3/4 mounting tab on the left and right sides. Including the tabs
you'll need 7 3/8 x 4 1/2 firewall space. If you can't find the space on the
firewall, maybe you could fabricate a bracket to hang it from the engine
mount or...
3. It's mounted on the engine side of the firewall, per Unison
instructions and I've had no RF interferrence from it at all.
4. I did NOT use the LASAR CHT monitoring option. I have a VM1000 which
gives me plenty of warning if the CHT gets too high so I figured that the
Unison system would be overkill.
The only problem I've had with the system was that they originally sent me a
controller that was set up FOR the CHT system. It would start and run fine
for about 5 minutes than quit.(that is, the electronic ignition would quit,
it reverted to normal mag operation and the engine continued to run
normally) If I unpowered/repowered the system it would run fine for another
5 minutes and quit again. Unison was very responsive to my problem and sent
me a new controller (still the wrong one) as well as two new mags. The
problem remained the same. Finally they figured out that the part number for
my controller was one that was set up FOR the CHT. It would be looking for
that input and when it didn't see it after 5 minutes, it would assume the
worst and shut down. Once I got the correct controller, it's worked
perfectly. Let me know before your order, Scott, and I'll send you the part
numbers for modules with, and without the CHT option.
Bill Harrelson
N5ZQ
harrelson@erols.com
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LML website: http://www.olsusa.com/mkaye/maillist.html
LML Builders' Bookstore: http://www.buildersbooks.com/lancair
Please send your photos and drawings to marvkaye@olsusa.com.
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