TT Redline 53H

[jakesvdm]

I saw the TT Redline engine and I am just wondering when I upgrade my 30 to a 50 if I should go for this engine or the OS 50 Hyper ? The TT engine makes 2.1 Hp. That is 0.2 more than the OS. But is it a good engine ? My local hobbyshop tells me that TT engines are very troublesome, and that they need some carb mod to run good for a while. But hobby shops can be very biased. And these days they sell Align engines and tell me it is rebranded OS engines.

Please help. I really like the power and I've read that the TT Redline sounds different. But is it a good engine ? You pay OS money for it, is it just as good ? Thanks.

[archiebald]

I don't have one myself.....yet. But I have a RL53H on my shopping list. I have run an older TT (without problems I might add) for the last 3 years and it runs like a little sewing machine.

Your Local Hobby Shop is talking out of his rear orifice, or is very much out of date. Some older TT engines did have problems with tuning but that was an easy fix and the all new RL53H (and new carb) has totally blown that reputation away.

I am sure you have searched other forums and will find that 99% of users have nothing but praise for the 53H.

OS Hyper is yesterday's champion.

[BarracudaHockey]

Don't pay any mind to HP ratings from different manufactures. I've flown one, its no more powerful than the OS.

The carb had a problem sticking once it warmed up.

Other than the issue with the sticking carb it ran fine.

[kas4j]

I like mine. No troubles yet.Seems a bit of a heavy drinker though.:cheers However I am new to helis so I can't offer any comparisons. The nice people helping me learn to fly and properlly set up an heli seem to like also.:thumbup:

[MartyH]

You are getting bad information from your hobbyshop. That whole barrel thing has to do with the early TT .36 and maybe the TT.39 from the original raptor 30s. It is NOT something that applies to the new Redline 53 engine. There is nothing in common except they come from Thunder Tiger. I sent my first .53 back beacuse the crankshaft runout was excessive but I replaced it so obviously I'm not scared of it. As someone else mentioned, you can ignore the hp ratings. They dont mean much. You will not go wrong with either engine so don't rack your brain too hard about this.

[Raptorman37]

Rotary modeler just did a review on the new engine, it has ALOT of power, however it seems ( from the article) that TT messed up on the carb again, running curves the engine is fine, however on the governor she goes lean at hover throttle. The fix for this was said to be run it sloppy rich on the low end, and you'll be ok at hover.:arggg: sounds like a candidate for the carb mod. Oh and Marty, if you search the forums, the original TT50 had the same problem, a poorly tapered low end needle was the fault i believe.:)

[fritzthecat]

You are getting bad information from your hobbyshop. That whole barrel thing has to do with the early TT .36 and maybe the TT.39 from the original raptor 30s. It is NOT something that applies to the new Redline 53 engine.

The TT53H has a different way of mounting the carb. If you overtorque the two mounting bolts, the carb body distorts and binds up the throttle barrel. Light torque and loctite on the bolts along with some grease in the barrel retaining groove gives a smooth rotation.

Fritz

[alexander]

This one has a limiter on it and MP-5... works good, lasts a long time. Sorry for the link source. The second vid has a stock TT muffler. Both idle great and transistion easily. However because it is designed for high rpm it should be tuned in this mode. If you tune it for low rpm operation it will run lean if you bump up the rpm without a mixture adjustment. Likewise it will run rich when dropped in rpm when setup for high rpm flying. It still idles fine but smokes more in the hover. It will burn more fuel since it developes more power than a typical 50 engine.
Basically tune for the correct mode of operation and pound on it.

While I haven't tried this the Multigov and ATG have a low throttle adjustment to pull engines out of undesirable off loaded throttle positions. Maybe it will help or maybe it won't. I have no need personally since I don't care if it only runs rich in my normal flight mode.

http://runryder.com/?v=/helicopter/rrTV-Photo/funflies/LasVegas2008/rrVegas08Fri-18-Colin-Bell.wmv

http://youtube.com/watch?v=vTIlllLInRo

http://www.vimeo.com/732584

http://media.putfile.com/colin-redline-testing