Discussion in 'Just Landed...Welcome' started by Don J, Aug 16, 2016.
Don....I am assembling my Corvair now.
I hope you Get ur done. Will be a good power plant but keep in mind when the crank main bearings go you have to bore them out and after so many times the core is done. That's why we need a foundry.
With regard to post #20, the thermo king blocks are designed by Yanmar Japan.
Same with the John Deer diesel mower engines and a few other small tractor engines.
The marine equivalent to the TK or TN is the 4JH, 1800cc. It's rated to 36Hp continuous in non turbo form but 52Hp at 3600 RPM for one hour in a mild turbo.
The 4JH-HTE has much stronger internals and a much higher boost. We are talking over 100Hp out of 2 Litres at 3200 RPM. Still only for one hour. Continuous rating is more likes 90 HP at 3000 RPM. Book rating says 115 HP max but take this with a grain of salt.
In my opinion, the only way to get something like this iron block monster to fly would be to strap the wings directly to the engine and sit on it. Not my idea of fun. This engine (which I have a lot of experience with) relies on really good cooling to keep the block and the inlet charge temperatures manageable.
Have a look at the Yanmar 4TN-88 for some ideas. The biggest issue to extracting more power is the fuel spray pattern. I'll leave it at that because others will chime in about using car Diesel engines which this isn't.
90 hp at 3000 rpm sounds just right to me but like you say the friggen weight is the pain. Maybe a alum head? I want one that is bone stock and a bunch of new and used parts to scrounge from. As far as HP I can only hope to find one that is close to or better then a 1835 VW on take off and that isn't much. I like the Thermo K because it is such a strong little engine and would sound cool in front of my planes. Any good Alum block inline 4 cyl Diesel motors out there?? Next great find will be like the Corvair, slowly we all will use up the left overs and look for some thing new!
Austro Engine E4 - Wikipedia, the free encyclopedia
Probably overkill and eye wateringly expensive
The most recent is the Merc OM651 and OM654. Although it does come with a car attached to it
With regard to flat six development, How much do you need to squint before the Continental O-300, the 1964 Corvair 2.7L and the J3300 start to look the same? Only two were built with a pit bearing for the spinny thing on the end.
I totally support anyone who wants to cast new Corvair blocks I just don't need one myself. Product liability and a desire to cast a block with a pit bearing in it would make it "interesting" quite quickly.
Jabiru 2200 both at our field well ove 700 hours no issues
As long as installed and maintained properly all good same goes for 3300
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