Highflight
Well Known Member
Guys,
I'm looking really seriously at the TMX 360 for my RV7, but I'm curious to see if any people who have added the following options to their engines (whether from Mattituck or elsewhere) want to comment on them and if they are considered important.
1. Precision Balancing at $1000.
What exactly is balanced, and what should I expect that option to "do for me"?
If it's so worthwhile, why wouldn't it be done as part of the standard engine and simply included in the base cost?
Without this option, how does the TMX engine compare with, say, the Lycoming.. or Superior, and how "precisely" they are balanced as their basic models?
Am I going to see improved (less) vibration in the overall running of the engine?
Or is it just a nice thing to do but not really that important if the "standard" balancing is done well? Is there a situation (such as using a particular prop) where it would considered to be necessary but then not necessary with some different configuration?
Bottom line is: would I regret NOT spending the money on balancing?
2. Port Flow Match at $1000.
This sounds sort of self explanatory and I would imagine that this option would help to balance all 4 cylinder temp readings much closer to each other (by equalizing fuel and/or air flow of the cylinders to each other?) which would obviously be a good thing.
But again, what are the other issues involved? Engine life? Protecting (what would have been the hot cylinder) from cracking or being heat damaged? Overall power benefit? Better economy through more aggressive (but safer) leaning? Those kinds of things.
3. Emag/Pmag.
I've looked at the Emags and have to admit that I'm really sold on them. Does anyone have an opinion one way or another in comparison the advantages or disadvantages from the Emags to other EI systems?
From what I understand, hardly any of them are flying yet, but the design appears to be a win/win design for EI all the way around.
Thanks,
Vern
RV7-A
I'm looking really seriously at the TMX 360 for my RV7, but I'm curious to see if any people who have added the following options to their engines (whether from Mattituck or elsewhere) want to comment on them and if they are considered important.
1. Precision Balancing at $1000.
What exactly is balanced, and what should I expect that option to "do for me"?
If it's so worthwhile, why wouldn't it be done as part of the standard engine and simply included in the base cost?
Without this option, how does the TMX engine compare with, say, the Lycoming.. or Superior, and how "precisely" they are balanced as their basic models?
Am I going to see improved (less) vibration in the overall running of the engine?
Or is it just a nice thing to do but not really that important if the "standard" balancing is done well? Is there a situation (such as using a particular prop) where it would considered to be necessary but then not necessary with some different configuration?
Bottom line is: would I regret NOT spending the money on balancing?
2. Port Flow Match at $1000.
This sounds sort of self explanatory and I would imagine that this option would help to balance all 4 cylinder temp readings much closer to each other (by equalizing fuel and/or air flow of the cylinders to each other?) which would obviously be a good thing.
But again, what are the other issues involved? Engine life? Protecting (what would have been the hot cylinder) from cracking or being heat damaged? Overall power benefit? Better economy through more aggressive (but safer) leaning? Those kinds of things.
3. Emag/Pmag.
I've looked at the Emags and have to admit that I'm really sold on them. Does anyone have an opinion one way or another in comparison the advantages or disadvantages from the Emags to other EI systems?
From what I understand, hardly any of them are flying yet, but the design appears to be a win/win design for EI all the way around.
Thanks,
Vern
RV7-A