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Old 06-19-2005, 10:51 PM   #346
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I just got my OS TZP and finished up the break-in process. I real happy with it. I can wait to see how it handles out on the track with everybody else.
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Old 06-20-2005, 05:51 AM   #347
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I have to say that the more I use this motor, the more I am impressed.

So far so good with the reliability and durability of the engine. It has had a total of seven and a half litres of fuel through it and it still has a slight pinch at TDC with the plug out, even when hot.

The only thing I have noticed is that if the performance goes off a little bit, a new glow plug brings it back to life.

For such a cost effective engine to be as good as this is astounding!
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Old 06-20-2005, 06:53 AM   #348
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Quote:
Originally Posted by BundyMan
Got my OS TZ over the weekend. Dismantled and cleaned it before lubricating the internals with some tamiya engine treatment oil. I am mightily impressed with the quality of the materials used and not to mention the finishing which is on par if not better than the Nova engines. Over the weekend in a local club race, someone with this engine was able to out accelerate an IDM engine! Kudos to OS for producing such an engine at an affordable price!

Btw, how many shims are you guys using for this engine? And what's the LSN and HSN needle setting?

Rgds
If your running 30% nitro you will need to add one copper shim to the engine or you will get pre detonation.
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Old 06-20-2005, 09:10 AM   #349
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We are having problems with this engine...... i think its just the tune up or the pipe...... dont know ?? quits all the time.

Trying a new kyosho pipe tommorrow...... efra one piece... kyosho pipe. How does this perform with this OS engine.

ZiiZoo
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Old 06-20-2005, 12:46 PM   #350
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I've just finished my breakin and I have to say that is the must engine, easy to tune, reliable, and is on par with the best italian mills at lower price, mine runs at 200F and is ballistic, what is remarkable is the price for parts, 40 p&s and 20 the conrod!
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Old 06-20-2005, 01:11 PM   #351
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Hmmm parts are cheap just like the sts motors.
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Old 06-20-2005, 07:49 PM   #352
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Quote:
Originally Posted by BundyMan
Got my OS TZ over the weekend. Dismantled and cleaned it before lubricating the internals with some tamiya engine treatment oil. I am mightily impressed with the quality of the materials used and not to mention the finishing which is on par if not better than the Nova engines. Over the weekend in a local club race, someone with this engine was able to out accelerate an IDM engine! Kudos to OS for producing such an engine at an affordable price!

Btw, how many shims are you guys using for this engine? And what's the LSN and HSN needle setting?

Rgds


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Old 06-20-2005, 08:44 PM   #353
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Quote:
Originally Posted by gijoe64
If your running 30% nitro you will need to add one copper shim to the engine or you will get pre detonation.
I think the engine has 0.5 mm of shimming. So you mean to add on another .2mm?
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Old 06-20-2005, 11:49 PM   #354
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Quote:
Originally Posted by BundyMan
I think the engine has 0.5 mm of shimming. So you mean to add on another .2mm?
Hi friend,

Got your engine already, finally. Run in already?

I think the engine comes with 0.3mm shims. Unless I measured wrongly...

Ran my engine in Atria race last weekend. It was pretty fast. After the whole race, still got plenty of compression and feels like new. No diff when compared to before race. Will strip it to check internals this weekend.
Let us know how your engine performs...

Cheers...
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Old 06-21-2005, 06:52 AM   #355
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Quote:
Originally Posted by BundyMan
I think the engine has 0.5 mm of shimming. So you mean to add on another .2mm?
You want to add one copper shim
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Old 06-21-2005, 07:37 AM   #356
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Quote:
Originally Posted by BundyMan
I think the engine has 0.5 mm of shimming. So you mean to add on another .2mm?
the OS motor already comes shimmed for 30%
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Old 06-21-2005, 02:23 PM   #357
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Quote:
Originally Posted by Rookie Solara
Finally meet "Gijoe69" and his OS teammate at our track yesterday, and seeing their box stock 12 TZ 3 port running against my Mugen X12, others Sirio EVO3, Mega Zx-12, Sirio 15, V12 Rody and JP 12...............the 12TZ is UP TO SPEED with all those fast motor out there, but with sub $200 ROAR legal engine, that is a BIG PLUS.

I have seen faster motor, but usually not with a $200 price tag, this 12 TZ does impress me (compare to their 12 TR before) a HUGH step ahead.
I have a T5. Once breaking in, this engine is very reliable. Starts easily everytime.

What is a good plug to use with this engine? My engine runs at about 210F. Is the temp ok? thx.
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Old 06-22-2005, 10:03 AM   #358
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i am running p6 hot plug. Works fine
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Old 06-22-2005, 12:24 PM   #359
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Is the OS engine legal for the BRCA? Does anybody have a pic of the crank? What is the crank bore size?

Thanks
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Old 06-22-2005, 12:52 PM   #360
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Tower has just droped the price of the .12TZ engines to 229.99
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