On the bench?

Are you using an airplane prop on the engine?

:sneaky: ...i meant i did the beakin in of the ground....:)

Just wondering because my cousins and I did break-in a couple of years ago following an article using prop's on 4 Tower .15 engines.

Mounted them on a bench, Set 'em rich, wired the throttled wfo and ran 6 tanks through all of them simultaneously. None of them went over 210 F.

I use mine as a loaner truck for beginners and the thing still starts and runs strong after about 3 gallons.

rcabj
great stuff dude

i was gonna use josh's method as well on my new sirio but decided to go with the idle a tank doing the heat cycle and then 6 more tanks on the track set rich. and WOT

let us know how it performs as well.

haven't had time to finish the break in process yet..bz bz...

anyway .. can a nova/rb turbo plug be used on the os-tr/t?

no!!!
just use the OS turbo plugs.

:( so that means there r uncompatible to each other....thanks brain:)

just to let u know over here the nova plugs r cheaper than the os ....:nod: thought can save some money:nod: :D

I run Novarossi turbo plugs in my engine with no problems.

rc_king1
what problems would you look for?

break in update
 

hello again....i've just finished another 2 more tanks on the track like what josh explains...so the grand total of 10 tanks for this break in process.

during this break in i have not encountered major difficulties....i can say it went pretty smooth....

now it's ( the engine) is ready to be tuned up to its optimal racing conditions(probably next week:D :nod: bz..bz....)

for now..bye:)

good stuff man! and remember dont use nova plugs you could get a possible air leak or damage your turbo button!

but have you also thought about a bigger head? those stock os tr heads are ugly and small!!!

i got myself a carlson 11 fin head works and looks a treat :)

also theres the kawahara head for it as well.

OS hyper heads are expensive so stay away from them.

hello and thanks brain:D

i think its not that ugly:D :lol:
but i have thought about getting the aftermarket head for the tr...maybe i'll get a used one....thanks:nod:

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!

Well, lets see. I have probably 2.5 - 3 gal. through the engine. Its been ran in many races and practice sessions. I have yet to see the problems that you mention. Tell me what the differences are between O.S. turbo plugs and Novarossi turbo plugs please. From what I know (maybe not much) is that they seem to have the same thread size and pitch and seem to measure the same in length. I will continue to run these plugs because they work for me.

Thank you for your concerns
Regards

I strictly use Novarossi plugs in my motor. I've never had a problem. I think people are just using the wrong heat range. I almost always use a 7F which is the 3rd coldest Novarossi plug.

hi guys....i am in a bit of a problem:(

when i was using the novarossi engine i did add a thin shim between the engine and cone for the flywheel...everything was fine.

but for this tr when i do the same setup the amount of play for the thrust bearing is very, very minimal.

so my questions is whether adding the shim between the cone and the engine is a must? just to be sure, thanks

oh ok well people at my track say no! as nova's have a different taper on the turbo plugs. but hey if racing4evo doesnt have a prob then you should be fine with them rcabj

now with the shimming aspect i believe its not a must. it only needs to be used when you can not see any space between the fly wheel and the front crankcase. Shimming is only needed to bring the flywheel out abit so it wont rub against the front bearing of the engine.
it think thats its purpose.

thanks brain:D ... i think i'll loose the shim on this tr so that i'll gain back the proper freeplay for the thrust bearing...:)

Anyone have a baseline needle settings? I need something to follow to make sure mine is somewhere in the ball park.

I bought a nocer heads for the trs on my ad2 & xxx-nt,they lowered the temps 40 degrees(240-245)to(180-200).Only thing is you need a millingmachine to take 20 thousanths off of the head so it wont touch the crankcase.

high speed ...1 3/4 to 1 1/2 turn from close
low speed...sorry :( i forgot)
mixture valve : from flush 1 turn in..

hope this helps:D

Yep to cold out to try today though. I really need a low end needle setting. Anyone?

on my tr-r spec i am getting a little over/under 10min, talk about great fuel consuption, the place where this engine likes the temp for me is about 200-215 degrees, great engine :nod:

hey i've just checked my settings
high speed 1 and 3/4 turns out from closed
low speed 3 and 1/4 turns out from closed

Hi there...

This is something i have been looking for quite sometime.. Just a quck qs.. Does this head just sit on a OS TR - T aswell without any accessories ? or extra parts or do i need to buy the turbo button seperate. ?

cheer
ZiiZo

the kawahara heads fit straight over the turbo button. So no you dont need extra accessories.

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...:nod:

thanks

for my ostr turbo engine, here are my settings...
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 :D

hope this helps;)

what i'm using is a zac silver anodized big engine head for my ostr turbo engine. it works great without any modification:D

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...:sweat:

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.

9 minutes haaa...i must try that...very great advantage in long mains...cuts refueling time:nod: :D as long as no overheating occurs:sneaky:

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. :)

i'm on the verge of getting me the rd logics turbo II, so how do u find this combo with the ostr?? :sneaky: :D

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

you can contact Tower Hobbies via telephone at 800-637-6050 (toll-free in the US or Canada)

The rd logics pipes are very nice I have one for my r40.

You should try Skyline they are great products,and alot better priced here is my FW-05R with the VR12s pipe,
http://www.deadzoom.com/member/terri/Picturecar051.jpg
http://www.deadzoom.com/member/terri/Picturecar050.jpg

will also try your settings:D

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:D