*** CLUB SUPER TIGRE ***
03-19-2015, 08:39 AM
#1776
Nope .90ci or 15cc same diff. It is an older Italian ST with bolt on front. But runs great. Good power. Might eventual order Frank Bowman ring for it. At that point I will replace bears and get another 2 or 3 decades of enjoyment. Oh wait! That means the engine will out last me my a good margin.
Or I could just run the snot out of it. That sounds better.
Ken
Or I could just run the snot out of it. That sounds better.
Ken
03-19-2015, 08:55 AM
#1778
03-19-2015, 10:54 AM
#1780
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i liked the the older s style s tigres with the bolt on front end. u could rotate the front 90 degrees and it would run clock wise. great for twins. anti torque set up for take offs, etc. i have 2 .90's 1 with the nose rotated and one normal rotation. with engs. like fox and others u had to replace crank shaft to achieve reverse rotation.........s tigre much easier be far.
03-19-2015, 11:42 AM
#1781
nine hundred + square inches of wing area powered by a .90ci (15cc) ST
Pictures should clear things up
Sorry about that. I try to be more clear than that normally, but when in a hurry clarity can be lost.
Ken
ninety square inches of wing would be insane. Might as well but control surfaces on a brick and see if it actually would fly.
Last edited by flyingagin; 03-19-2015 at 11:47 AM.
10-21-2015, 04:42 PM
#1782
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I'm rebuilding some Blue head G60 engines and was wondering if anyone has the parts list for these engines. I have both the PDP and non-pdp engines so any info would be great thanks.
10-28-2015, 05:19 PM
#1784
10-28-2015, 07:37 PM
#1785
The bore is smaller in the Chinese one. That's why I asked for an Italian one. The parts are "supposed" to be the same, but they aren't.
10-29-2015, 05:26 AM
#1786
10-29-2015, 06:26 AM
#1787
No. There are only slight differences in the parts - enough that a piston ring for an Italian won't fit a Chinese engine without filing the ring to fit the bore. More importantly, a Chinese liner would require a Chinese piston and ring or a file fitted Italian ring. I'd want to use Italian parts in an Italian engine anyway.
10-29-2015, 08:10 AM
#1788
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No. There are only slight differences in the parts - enough that a piston ring for an Italian won't fit a Chinese engine without filing the ring to fit the bore. More importantly, a Chinese liner would require a Chinese piston and ring or a file fitted Italian ring. I'd want to use Italian parts in an Italian engine anyway.
CR
10-29-2015, 08:27 AM
#1789
I think it would take more than just a little bit of filing to make it fit. It's enough of a difference that Frank Bowman made a ring specifically for the Italian G51 and a different ring specific to the Chinese G51. Yes, fitting the ring is part of a rebuild, but Franks rings fit perfect out of the envelope, so why change it? Given the size differences in the bore, I'm not sure the OD of the Chinese liner is the same as the Italian liner.. I'm not going to leave it to chance since I don't have a mill or lathe to modify the case if needed.
I will look on eBay if need be. Old NOS parts come up all the time on eBay.. I figured I'd ask around here first.
I will look on eBay if need be. Old NOS parts come up all the time on eBay.. I figured I'd ask around here first.
10-29-2015, 01:09 PM
#1790
I think it would take more than just a little bit of filing to make it fit. It's enough of a difference that Frank Bowman made a ring specifically for the Italian G51 and a different ring specific to the Chinese G51. Yes, fitting the ring is part of a rebuild, but Franks rings fit perfect out of the envelope, so why change it? Given the size differences in the bore, I'm not sure the OD of the Chinese liner is the same as the Italian liner.. I'm not going to leave it to chance since I don't have a mill or lathe to modify the case if needed.
I will look on eBay if need be. Old NOS parts come up all the time on eBay.. I figured I'd ask around here first.
I will look on eBay if need be. Old NOS parts come up all the time on eBay.. I figured I'd ask around here first.
10-29-2015, 02:10 PM
#1791
And, does he have anyone taking over his art with rings? Thanks.
Sincerely, Richard
10-29-2015, 02:38 PM
#1792
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All is not lost with Frank Bowman's retirement
Lots of repro. piston rings (for ST and others) here:.
http://www.ebay.co.uk/sch/i.html?_fr...ing&_sacat=220
Here is an ST. 51 listing:
http://www.ebay.co.uk/itm/SUPER-TIGR...0tAGgqU1RdNeLQ
I have bought a couple from the vendor (to renovate a HP .61F and Webra Speed .61) and they are very good.
He makes the ring very slightly oversize to allow for wear in the bore. Therefore, in some cases the ring ends may need to be filed very slightly to the correct gap setting. I borrowed the wifey's nail file
If you are happy with a factory ring (probably chinese) for a G.51 Omni have them, though you may need the liner as well. If you are prepared to risk a few dollars perhaps 'suck it and see' is an alternative, it may be fine in an Italian engine.
http://www.ebay.com/itm/NEW-SuperTig...kAAOxy79JRgXYo
Or Bobby Brooks, purveyor of many hard to find OS, ENYA and ST parts:
http://www.ebay.com/itm/SUPER-TIGRE-...kBJ4jm1QnarLtw
Lots of repro. piston rings (for ST and others) here:.
http://www.ebay.co.uk/sch/i.html?_fr...ing&_sacat=220
Here is an ST. 51 listing:
http://www.ebay.co.uk/itm/SUPER-TIGR...0tAGgqU1RdNeLQ
I have bought a couple from the vendor (to renovate a HP .61F and Webra Speed .61) and they are very good.
He makes the ring very slightly oversize to allow for wear in the bore. Therefore, in some cases the ring ends may need to be filed very slightly to the correct gap setting. I borrowed the wifey's nail file
If you are happy with a factory ring (probably chinese) for a G.51 Omni have them, though you may need the liner as well. If you are prepared to risk a few dollars perhaps 'suck it and see' is an alternative, it may be fine in an Italian engine.
http://www.ebay.com/itm/NEW-SuperTig...kAAOxy79JRgXYo
Or Bobby Brooks, purveyor of many hard to find OS, ENYA and ST parts:
http://www.ebay.com/itm/SUPER-TIGRE-...kBJ4jm1QnarLtw
Last edited by fiery; 10-29-2015 at 02:53 PM.
10-29-2015, 02:54 PM
#1793
I'm willing to wait for an Italian liner. My G51 runs as-is, but the cylinder has some pitting just above the boost port and adjacent transfer ports. It runs pretty well turning a 12x7 APC at 10,500+rpm with a Davis head. It has a Bowman ring in it now and I have a spare new Bowman ring in the drawer. I stocked up as I got more ringed engines. I have a spare Bowman ring for every ringed engine I own currently.
10-29-2015, 06:14 PM
#1794
I'm willing to wait for an Italian liner. My G51 runs as-is, but the cylinder has some pitting just above the boost port and adjacent transfer ports. It runs pretty well turning a 12x7 APC at 10,500+rpm with a Davis head. It has a Bowman ring in it now and I have a spare new Bowman ring in the drawer. I stocked up as I got more ringed engines. I have a spare Bowman ring for every ringed engine I own currently.
I knew the day would come soon enough that Frank would quit the business...
10-30-2015, 03:50 AM
#1796
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All, I just picked up a NIB SuperTigre 4500 from Pa. I'll put an hour on it then put a Davis Diesel head on it and report back. I already have a new and unused Bisson Pitts muffler for it. I have a spare Bowman rig for a Super Tigre 3000, I'm hanging on to it.
11-02-2015, 03:52 PM
#1797
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The big engine arrived today as described, the carb and the engine bolts and exhaust bolts and exhaust stack were all still in their respective sealed plastic bags. Even unrun it has some real serious compression. It's in the PSP, new Bisson mounted. Now for some time to run it.
11-02-2015, 05:25 PM
#1799
I love the big 4500. I have one in a Great Planes 1/3 Pitts and 3 NIB.
It flys the Pitts perfect scale speed.
A bit of advice FormerDairyFarmer - Be careful when running it in. Don't run it too long on the ground. As soon as it idles reliably and transitions OK, put it in the air.
I would take off and after a couple of minutes it would stop. I tried everything to fix it from large fuel tubing to a Cline pump and nothing worked.
Eventually I stripped the engine and noticed the cylinder was glazed. I give it a hone with a brake cylinder hone and it's never quit since.
It flys the Pitts perfect scale speed.
A bit of advice FormerDairyFarmer - Be careful when running it in. Don't run it too long on the ground. As soon as it idles reliably and transitions OK, put it in the air.
I would take off and after a couple of minutes it would stop. I tried everything to fix it from large fuel tubing to a Cline pump and nothing worked.
Eventually I stripped the engine and noticed the cylinder was glazed. I give it a hone with a brake cylinder hone and it's never quit since.
11-02-2015, 06:57 PM
#1800
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The big Tigre's are fairly economical since they don't run at high rpm, 8,000 being the practical limit for the 4500. Turning a 20x8 it does a great job. The 4500 is smooth and easy on the fuselage. When I convert it to Diesel it will be turning a 22x10 at about 6,800.