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| Large Engines Discuss Engines Used on Giant Scale Aircraft. Gas/Glow, as long as they're big! |
Topic Review (Newest First)
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| 09-11-2014 06:00 PM | ||
| D-J |
Re: ZDZ 90 rv-J It's already an old thread, but i don't want to add a new one, due to the valuable information already posted in this thread. Does someone has done some further experimentation? I'm interested in the following prop data: Mejzlik 28x10 Mejzlik 28x12 Mejzlik 29x10S And is the ideal header length (12 3/4 inch) including the teflon coupler or not? Thanks |
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| 12-11-2012 06:29 PM | ||
| Dale Hunter |
Re: ZDZ 90 rv-J I have read this thread through completely a few times. Now while waiting the last few days for mine to arrive. I'd be very interested in knowing how Bill's (formerly Trevor's) 90 looks after the teardown. Please post results when you get them Bill. In advance, thank-you. -Dale- (Happy Birthday to me!)  100% free webcam site! | Awesome chicks and it is absolutely free! | Watch free live sex cam - easy as 1-2-3 |
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| 07-20-2012 07:18 AM | ||
| WildBill |
Re: ZDZ 90 rv-J Im planning to do a shakedown on the compy tonight and hopefully maiden it sunday, goin to continue running the compy at 100:1 and mine at 50:1 and compare them in the fall, will post results then . im getting 6400 with a 28-10B 3d xoar at the moment. |
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| 07-19-2012 11:27 PM | ||
| RAMJET |
Re: ZDZ 90 rv-J any of these engines could last a life time if run correctly(proper mix) , if on the other hand you only need it to last a couple of years or you get rid of them quickly 100:1 will work ,it will run cleaner for sure .it just wears out faster. I did a test once on a 2 cycle mower and ran it with no oil at all , filled the tank, started it, ran it full throttle till the tank ran out ,to my surprise nothing happened ,I am sure I took a couple of years off it's life but it still ran, this does not mean it was good for it. oil does more than lube the motor , it seals the ring for compression , it takes up clearance in the bearings, piston skirt and rings,it also helps with heat transfer . most engines run on low oil will suffer from ring land wear first as the dry ring will pound the ring lands out.this is the clicking sound you get just before you send your engine for repair.the chrome will be one of the last things to fail. PS: you can check ring land wear through the port,if you can see the ring move when rocking the piston there is not enough oil or the lands are worn. |
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| 07-19-2012 03:12 PM | ||
| RickyBoy |
Re: ZDZ 90 rv-J 40:1 and a Bielle 27 X 10 Beautiful |
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| 07-19-2012 01:22 PM | ||
| Old School Flyer |
Re: ZDZ 90 rv-J I am interested in seeing Wbill remaiden the Comp......... I'm surprised he isn't all over it, like me on Candy! |
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| 07-19-2012 01:19 PM | ||
| Rob |
Re: ZDZ 90 rv-J The zdz bill has in the beast is one he bought from amr. the one trevor is talking about is in the comp yak he bought from trevor. |
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| 07-18-2012 09:37 PM | ||
| Old School Flyer |
Re: ZDZ 90 rv-J he finally did it, Wildbill left the field after flying with a SMILE on his face................ its been a long time but the ZDZ is starting to take shape for him |
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| 07-09-2012 09:29 PM | ||
| TBrum |
Re: ZDZ 90 rv-J Quote:
Yep... and Amsoil 100:1 since day one in my ZDZ180!! Hope it holds up I miss my 90 now!! Have fun with it Bill!!! T |
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| 07-09-2012 02:59 PM | ||
| Old School Flyer |
Re: ZDZ 90 rv-J  ............ |
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