guys: is there any difference between the crankcase of the ostr engine, ostr turbo engine, and the ostr r spec engine aside from the black coating??? thanks:D

guys: which plug is better suited for ostr turbo engine??? the p6 or the p3??? which plug is hotter??? the original ostr turbo engine came with a p6 glow plug. thanks:)

http://www.osengines.com/accys/osheatrange-new.jpg

p6 is hotter

i see...where in the chart is the p3 turbo plug???

Hi

I used the stock p6 when i ran in and used it for quite some time till i switched to the p8 on a race day and i think it held in there really well for 3 cont. day of racing just one plug.....on the 3rd day i ran the car with a broken silicone pipe on the exhaust which would lean out my car when i was on the straights thats when i had to pull over and shot out..after that day i converted my fw05r to RR and ran my car yesterday it wouldnt start ihad to change the plug i have moved to p6 again since it was stock. so lets see how the p6 really runs.......since its winter here.... i want to try the hot lpugs.

i converted my 05r to the rr and i love it !!

You should with the amount of money spent. :nod: :lol: (j/k)

i know it cost me a woping $65.00 !!:D ;)

4000 whooping Yens !! for me !! :lol: :tire: :sneaky:

I would be converting my RRR to the WC with the 1pc engine mount, uni shafts and carbon front stay.

OS TR12 Efra version
 

Just tried one yesterday and it was holding its own against all the JPs, Nova and other top end engines, I also qualified 4th quickest out of 50 runners and also had atleast a quarter left in the tank after 5 minutes heat. I am very please with this engine and of course the price :nod:

OS TR leaning out.....
 

Hi guys

just a quick qs.. I started my TR - T today after almost a month today and the engine was running just fine......but suddenly there was a problem with it........... the engine would suddenly lean out and loose power....... only sometimes at full throttle.....i dont think its lean...

could it be some kind of a leak ?

Re: OS TR leaning out.....
 

try this get one of those engine sprays from orion, start the motor and spray it where the carby is attached (neck) if it stalls or changes the rev the seals may be broken or the carby is not mounted properly. Try taking the carby off the crank case and re-intall secure it properly with your thumb and tighten the nut, you might as well change the o-ring on the neck to make sure.

Same is happining to me. I was out running and I was slowly getting up to full throttle. By the time i was at Full the engine like died and came back to life.

could be your plug mate.....anyway check for leaks.............:nod:

True when the street dries up Ill change plugs. I still have the plug that came with it in.

dyno chart
 

Hi guys,

I am currently using the TR(P)-T 5-port.
I would like to know if any of you have the dyno chart/graph.
I saw the review in one of the magazines recently and I am quite sure that there's a dyno chart for this engine.

Would be interesting to have the dyno chart to help on gearing calculations.

If any of you have one for this engine, can you please post it here?

Cheers.

os .12 tr turbo button ?
 

hello

Just wanted to know where the best place is to buy the turbo button for the os .12 tr 5 port engine ?

preferably an online store as i live in australia

thank you
John

OS TR 12 Rotary Carb
 

Guys anyone have an old TR .12 with rotary carb that they are not using and looking to sell. PAYPAL if you have one.

[email protected]

So today I went to break in my new OS TR 5p Turbo plant. Using O'Donnel 20% race fuel and the OS recommended needle settings per the little booklet, and all I got was a hellishly flooded motor.

You guys have any specific recommendations for breaking in these plants? (I stripped a pulley in my starter box so I have a few days to reaserch till I get the replacement in)

I am also getting an OS 7 plug in since in my experience a Medium plug is better for breaking in.

Theres like 530 posts in this thread, and the forum software's search logic is ass, so its a PITA to search back and see any specific post with a break-in run down.

Lean out the HIghend needle until you can get it to fire.

yea..i think your needle stting is too rich....like nsxshogun mention try closing a bit either off those needles. but try first the low end needle near the throttle linkage...5/10 minutes close...

anyway there is 2 if i can say 'popular method' the 1. idling method or the 2. WOT ( wide open throttle).... but if u r still not familiar with nitro i suggest u choose the 1st method usually recommended by the manufacturer...good luck:D

this will be the 6th engine I have broke in, so I am not new to nitro, but I have never heard of the WOT method.

i have been racing for 6 years and i always break in all my engines (15 total) with the WOT method with great sucess. You want to break in your motor at operating temperature,if you let it iddle the engine is not generating enough heat and you are doing more harm than good.

this is from Josh Cyrul's website
http://www.cefx.net/tips/nitro/break-in/index.php

What fuel is perfect for break ins? I currently have O'donnel RTR 20%. Is this good enough?

i use maxys 30%,the os tr comes shimmed for 30% fuel

i've used 25%...looks ok to me

i didn't know the os comes shimmed 4 30%....good info:D

os tr shimming for 16%
 

hello

so if the tr comes shimmed for 30% nitro, would it be wise to make changes to the shims if your running 16% ?

thanks heaps

Re: os tr shimming for 16%
 

you should take shims away when using lower nitro content

my tr has just 1 thick shim

Hey mate nice run yesterday :nod: :sneaky:

OS 12TR carby setting
 

Hey guys im rebuilding my carby today was wondering if you guys got a rough setting on the following:-

Mid needle
Low needle

The stock set up dont tend to work, i dont need a exact just a rough idea. Engine is 1 month old and people help them selves play with the needle adjustments and now its all f*cked, many thanks.

are you sure you know what your doing ? :)
hehe

this is the 3 needle carb that your using

thanks man :sneaky: :flaming:

i think i do know what im doing since im in this for 8 years now, just want a starting point.

wheather its a 2 or 3 they both have a pre-set point where the engine will run its best.

For the ignorant ppl out there its a 11a if anyone else will be smart dont bother answering...

R-Spec break-in
 

I ran-in and tuned a 12TR R-Spec yesterday in a new FT NTC3.

Used O'donnell 20% and temp's were around 60.

I found the OS recommendation for 2 turns out was just too rich, so I started break-in at aroung 1-1/2. Also raised the idle a little to prevent loading up off-throttle.

What a treat this engine is. It ran flawlessly during break-in, with only a couple of flame-outs during the first 5 tanks. I started leaning it and the engine really came alive. I did lose a P6 plug as I started to lean it out. In the end, the HSN needle ended up at about 1-1/8 turns out.

After finishing the HS tuning, I re-set the idle and the thing just runs great. I can sit idle for 30 seconds, pull the trigger and it takes-off like throwing a light switch.

I can't believe this was a $150.00 engine. I don't get why OS discontinued it so long before the TzR becomes available.

along with my tzr engine i also purchased a tr r spec used from a mate that had just run 3 break in tanks at idle

ill be using this engine for my club days and the tzr for race events

cant wait to tune this engine
is the os p6 plug best for this engine ?

ill be using 15%nitro fuel

Did you get this thing fired up yet?

Yeh last weekend, got 10 tanks through it, its got some pep! It was a bit of a bitch to get started the first time to break it in, but once I got the initial break in out of the way and finished with the rest of the fun the engine runs fine. My old STS/HPI .12XS was a bit easier to break in, but the OS is a bit more stable it seems.

I also bought a STS D3R 3 port modified motor to use in some series races I am going to try and run (3 port only rules for the series)

glow plug for tr r spec ??
 

hello
wats a good turbo low plug to use with the os tr r spec ??

i am using 15% nitro fuel, the engine came with a p6 glow plug so would be best to continue with this plug ?

thank you
john

my ostr 2nd race
 

just to give credit to this os tr...last weekend was the 2nd race for this tr...and the results were still something like a dream to me....i got 3rd A main...it was real hard for me to qualify, only in the last heat i was able to put myself into the A main group..qualified 9th...

although it was my 3rd time qualifying in A, i didn't had any high hopes , maybe just to finish the race one or 2 placing better than i started, especially with the other regular A main faces and mostly italian power plant...

besides the reliablity and competitive power by the tr...the pit and driving strategy also help achieve the good results....my plans were simple , a 6 min. 30 second per refuling time, start last following the rest of the pack...after the 1st refuel i heard the announcement that i was 2nd trailing 1 laps behind the leader...as the race went on i was switching places 2 and 3rd...at one time i drop to 4th..halfway through i was thinking 'this time i can do it at least nd or 3rd...i just have to keep focus and do not overconfident...and the race ended and i felt so good.... anyway now i have more confidence in future races....tq :blush: :blush: :D