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Old 08-04-2006, 05:20 PM   #46
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Originally Posted by SasonRC
Being that the price for the 5Port sleeve is cheaper than the 3port, is O.S. saying that the 5 port has less power than the 3port, therefore making it more desirable? Or is it the quality of materials?
I have heard that more research is put into the three ports to make them have the power that they do and still be legal. Don't know how true it is though.
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Old 08-09-2006, 11:18 PM   #47
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any comments regarding the osspeed 1040 inline pipe? is it durable? how about the power band when used with an osspeed 3 ports engine? and how does it compare with the skyline vr plus pipe? thanks
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Old 08-10-2006, 09:04 AM   #48
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Quote:
Originally Posted by doki_doki
any comments regarding the osspeed 1040 inline pipe? is it durable? how about the power band when used with an osspeed 3 ports engine? and how does it compare with the skyline vr plus pipe? thanks
I really like this pipe on larger tracks. It has tons of top end, but I lost my low end. I tried going back to my VR12+ pipe but found my engine ran hotter based on the same needle settings. The one thing that I do not like about the pipe is that it is much softer compared to the skyline pipe. The stinger bends really easily.
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Old 08-10-2006, 07:17 PM   #49
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proteus,

did you use the 1040 with the OSspeed 12TZ?
if yes, then how weak is the low-end?
wld you say that the VR12plus wld be a better pipe for the OSspeed TZ?
or any other recommendations?

i'm surpised that you'd say the 1040 is soft.
cos their 2060 is the hardest arnd...
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Old 08-10-2006, 07:37 PM   #50
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Quote:
Originally Posted by Proteus
I really like this pipe on larger tracks. It has tons of top end, but I lost my low end. I tried going back to my VR12+ pipe but found my engine ran hotter based on the same needle settings. The one thing that I do not like about the pipe is that it is much softer compared to the skyline pipe. The stinger bends really easily.
I see. Thanks for the information. So far the hardest pipe that I have used is the shark2 inline pipe. It will last for years. I had an older version of the shark pipe before and for the 5 years I have been using it, not dents in the pipe. Just scratches on the bottom part. Then I sold it to upgrade to the shark2 inline pipe. Problem with this pipe is does it does not need the required specifications for sanctioned race.
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Old 09-01-2006, 03:10 AM   #51
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guys: do you put shims on the engine button head when you are using 25% nitro. planning to used 25% tornado fuel on this engine. thanks
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Old 09-01-2006, 05:14 AM   #52
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I would add a .10 as these motors are set for 16% nitro
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Old 09-01-2006, 07:22 PM   #53
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heres wat my opinion on OS Speed Pipe that i have tested

- powerful mid to high end
- really really save fuel consumption
- durability wise, can't confirmed, coz rite now, its freezing inside the fridge to get those dents out. but i believe its already quite tought pipe, my dents are caused by cars directly smashing towards my pipe. so i guess its not bad after all. so to overcome this problem, i have played with my gearing ratios. but the feel of this pipe is "Smooth", it doesn't roar and doesn't scream like my other outlaw pipe. so i guess it really depends of the type of track that u play with.
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Old 09-03-2006, 03:54 AM   #54
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Quote:
Originally Posted by uniquexme
heres wat my opinion on OS Speed Pipe that i have tested

- powerful mid to high end
- really really save fuel consumption
- durability wise, can't confirmed, coz rite now, its freezing inside the fridge to get those dents out. but i believe its already quite tought pipe, my dents are caused by cars directly smashing towards my pipe. so i guess its not bad after all. so to overcome this problem, i have played with my gearing ratios. but the feel of this pipe is "Smooth", it doesn't roar and doesn't scream like my other outlaw pipe. so i guess it really depends of the type of track that u play with.
i see. i'm also using the osspeed L1040-52 inline pipe so far, i haven't finished breaking in my engine will post some feedbacks about the engine and pipe after i'm done breaking it in

Last edited by doki_doki; 09-03-2006 at 10:03 PM.
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Old 09-03-2006, 08:35 AM   #55
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Default crankshaft question

Hiya folks,
I'm interested in the Os speed-tuned TZ... but i live in singapore and races here are unregulated, or even if they were regulated, it would be via ifmar or femca rules.
do the engines you guys buy come with the efra crankshaft or the ifmar crankshaft?
The os website shows pictures of both but i dunt understand japanese:
os speed website
whacha guys think?
-alexander
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Old 09-03-2006, 10:05 PM   #56
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Quote:
Originally Posted by foampervert
Hiya folks,
I'm interested in the Os speed-tuned TZ... but i live in singapore and races here are unregulated, or even if they were regulated, it would be via ifmar or femca rules.
do the engines you guys buy come with the efra crankshaft or the ifmar crankshaft?
The os website shows pictures of both but i dunt understand japanese:
os speed website
whacha guys think?
-alexander
the engine is IFMAR legal. you can visit the englisj website of OS engines. here's the address: www.osengines.com hope this helps
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Old 09-03-2006, 10:47 PM   #57
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I noticed the mention of putting a pipe in the fridge to get out dents. Can someone explain the proceedure to me?

Thanks
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Old 09-04-2006, 02:07 AM   #58
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Default erm, thanks for the info...

Howdie Doki_doki,

thanks for the info; actually, i have been to the os website but it really doesn't state if it has a full cut crankshaft or the efra cut one.

Cos efra cranshafts are naturally ifmar legal as well.

The japanese osspeed website shows 2 different crankshafts... how strange.

In singapore, its totally unregulated except during invitational races (but then, there is no teching anyways, so this point is moot) so everyone runs pretty much 5 porters, modded to hell, 6-7mm type pipes and so on...

If anyone can just confirm that the os speed TZ comes with a full cut crankshaft, that will be really cool...

Thanks again.

-alexander

Quote:
Originally Posted by doki_doki
the engine is IFMAR legal. you can visit the englisj website of OS engines. here's the address: www.osengines.com hope this helps
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Old 09-09-2006, 07:22 PM   #59
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Default Please Help!!!!

Hi Guys,

Ok, here's my problem.....

My O.S. Speed Tuned started giving me hard start problems. I would have to enguage the start box and keep it there for no less than about 20 - 30 secs straight (sometimes more) before the engine would come to life.

Once running, it would perform great. But, once it's off again, problems to start back. Even from a cold start.

This is a pretty new engine. I am rather concerned however, that even after about 15 - 20 tanks the piston is still very tight and I would sometimes need to use an allen driver to remove it off TDC. (Top dead center)

The temps are within safety limits and I replaced fuel lines.

What else could this be???

I am in the process of taking down the engine and would like to know what to look for?

Thanks for any help.


--------------------

Edited

I just took the engine apart. Here are some photos of the piston and head.

Does this not look like it's pitted? What could be the cause?

I use Byron 25% and a P7 plug.

Thanks
Attached Thumbnails
O.S. .12 TZ(P)-T3 Speed Tuned-july-2006-001.jpg   O.S. .12 TZ(P)-T3 Speed Tuned-july-2006-002.jpg   O.S. .12 TZ(P)-T3 Speed Tuned-july-2006-003.jpg  

Last edited by V1-RRR-WC; 09-09-2006 at 07:52 PM.
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Old 09-09-2006, 08:53 PM   #60
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Foampervert:
The 2 different crankshafts are to fit the rules of different governing bodies. One Fits EFRA, and the other crankshaft fits ROAR/IFMAR/FEMCA

V One RRR-WC
These engines are shimmed for 16%, and not 25%. To run 25%, you need to raise your head clearance. This is why detonation has occured!
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