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Message
I would
like to know where I went wrong or what I forgot to omit as I like your figures
better Rusty. Don't tell me oil!!
George ( down under)
Well, mine's still just an estimate
too, but not for much longer :-)
Below is how I
estimated it in my log. These are 2nd gen weights BTW, not REW, which
are a bit lighter I think. As you can see, I calculated 216.5 lbs, and
rounded that up to 230 lbs to be conservative.
Cheers,
Rusty
13B
parts:
Front iron housing- 23 lbs
Center iron housing- 28 lbs (with dipstick and filler
tube)
Rear
iron housing- 27 lbs
Each rotor housing- 13 lbs
Each rotor with seals- 10 lbs 9
oz
Water pump housing- 3 lb 2
oz
Water pump- 5 lbs 9oz
Eccentric shaft- 14 lbs (estimate a
single rotor would be 5.5 lbs less)
A
bare 13B engine is known to weigh 190 lbs.
The items in red above would be removed from this base weight. The total of these items is rounded to
66 lbs. That brings the base engine
weight to 124 lbs. Aside from the redrive,
which will be the same, the rest of the weight will be literally half of the 13B
installation weight for other items. We often claim 330 lbs FWF for a
13B. If the basic engine weighs 190
lbs, then the “other” stuff weighs 140 lbs. If the redrive is 45, then the items that can
be cut in half weighs 95 lbs. So, the single rotor engine is
124, plus 45 for the redrive, and 47.5 for half of the accessory weight.
This is a total of 216.5 lbs. If Racing Beat ever finishes their
aluminum housings, this would be around 190 lbs.
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