OS TR engine thread
#467
Tech Elite
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engine updates
well , following several of my posting on this engine...yesterday was it first test on a race after break in...
it felt slightly slow taking off (i guess my fault cause the low end not lean enough and also the wrong pipe combo) but the mid and top speed was excellent...
also in the 30 minutes main no engine cut off whatsoever.....overall i'm quite satisfied...
so future race gotta lean more the low needle...
thanks
it felt slightly slow taking off (i guess my fault cause the low end not lean enough and also the wrong pipe combo) but the mid and top speed was excellent...
also in the 30 minutes main no engine cut off whatsoever.....overall i'm quite satisfied...
so future race gotta lean more the low needle...
thanks
#468
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Originally posted by nsxshogun
Anyone have a baseline needle settings? I need something to follow to make sure mine is somewhere in the ball park.
Anyone have a baseline needle settings? I need something to follow to make sure mine is somewhere in the ball park.
high end needle: 1 3/4 from close
low end needle: 1 1/2 from close
middle needle: 1 full turn from flushed position from the carb
with this setting, my engine run at around 9mins for a 75cc tank and 230F temperature rating. engine is a bit on the rich side
hope this helps
#469
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Originally posted by BrainTeased
http://www.rcaddict.com.au/product_i...roducts_id/126 this is what the kawahara heads look like for the OS TR nice novarossi purple color!
http://www.rcaddict.com.au/product_i...roducts_id/126 this is what the kawahara heads look like for the OS TR nice novarossi purple color!
#470
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glow plugs
i've tried using a rb plug #5 on my ostr turbo engine. it works great. no problems so far. the os turbo plugs are way to expensive...
#471
Yet another needle setting for the O.S. .12 TR (P)-T R-Spec.
High side needle 1 1/4 out from closed.
Low side needle 2 3/4 out from closed.
(Middle is per instructions 1 1/2 in from flush with the carb body).
All these settings are after break in. I also can get over nine min of race time at about 218 deg. But I intend to try the other settings listed. Just to see what difference they make.
High side needle 1 1/4 out from closed.
Low side needle 2 3/4 out from closed.
(Middle is per instructions 1 1/2 in from flush with the carb body).
All these settings are after break in. I also can get over nine min of race time at about 218 deg. But I intend to try the other settings listed. Just to see what difference they make.
#473
Originally posted by rcabj
9 minutes haaa...i must try that...very great advantage in long mains...cuts refueling time as long as no overheating occurs
9 minutes haaa...i must try that...very great advantage in long mains...cuts refueling time as long as no overheating occurs
#474
Tech Elite
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Originally posted by edracer1
Yea, I kept thinking something must be wrong with my engine, until another racer who runs the exact same engine said he got 9:45 min run time. But I really haven't tuned it to race and just now will run my Logics turbo II pipe and this is the stock gearing not the .08... I'm sure it won't last.
Yea, I kept thinking something must be wrong with my engine, until another racer who runs the exact same engine said he got 9:45 min run time. But I really haven't tuned it to race and just now will run my Logics turbo II pipe and this is the stock gearing not the .08... I'm sure it won't last.
#475
Tech Rookie
Hello,
Where can I find this engine to purchase?
on Tower Hobbies it says its discontuniued, however I beleive rc-car action did a review of this engine I think in its december issue if i'm not mistaken.
I have an os TR that i bought two years ago and I loved this engine for how easy it is to tune and its reliability.
Thanks for any help!
Atom
Where can I find this engine to purchase?
on Tower Hobbies it says its discontuniued, however I beleive rc-car action did a review of this engine I think in its december issue if i'm not mistaken.
I have an os TR that i bought two years ago and I loved this engine for how easy it is to tune and its reliability.
Thanks for any help!
Atom
#476
Super Moderator
iTrader: (239)
Originally posted by Atom
Hello,
Where can I find this engine to purchase?
on Tower Hobbies it says its discontuniued, however I beleive rc-car action did a review of this engine I think in its december issue if i'm not mistaken.
I have an os TR that i bought two years ago and I loved this engine for how easy it is to tune and its reliability.
Thanks for any help!
Atom
Hello,
Where can I find this engine to purchase?
on Tower Hobbies it says its discontuniued, however I beleive rc-car action did a review of this engine I think in its december issue if i'm not mistaken.
I have an os TR that i bought two years ago and I loved this engine for how easy it is to tune and its reliability.
Thanks for any help!
Atom
#477
The rd logics pipes are very nice I have one for my r40.
#479
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Originally posted by edracer1
Yet another needle setting for the O.S. .12 TR (P)-T R-Spec.
High side needle 1 1/4 out from closed.
Low side needle 2 3/4 out from closed.
(Middle is per instructions 1 1/2 in from flush with the carb body).
All these settings are after break in. I also can get over nine min of race time at about 218 deg. But I intend to try the other settings listed. Just to see what difference they make.
Yet another needle setting for the O.S. .12 TR (P)-T R-Spec.
High side needle 1 1/4 out from closed.
Low side needle 2 3/4 out from closed.
(Middle is per instructions 1 1/2 in from flush with the carb body).
All these settings are after break in. I also can get over nine min of race time at about 218 deg. But I intend to try the other settings listed. Just to see what difference they make.
#480
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Join Date: Dec 2003
Location: Cebu City, Philippines and Ocala, Florida, USA
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tuning....
guys: which is better in tuning an engine??? tuning the leaning out the high end needle and richen the low end needle or the other way around???
thanks
thanks