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Old 08-21-2006, 03:15 PM   #5866
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Originally Posted by Adim_X
I am looking to get a new engine for my mtx4. I dont want to drop 500 on a engine. I would like to spend anywhere from 150-350. What would you guys recommend? Hows the Murnan mod OS TZ 3 port? thanks
Sirio (Stock or STi), with the new Sirio pipe... adjust the ratios to a little short one (hint: To really make it scream, maybe you need a shorter pinion cluster on your MTX4).

Maybe a Murnan Sirio could be your ticket for a scary ride.
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Old 08-21-2006, 03:31 PM   #5867
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Seen some time ago, people still want to have a big gap on their 2 speed shoes just to have a more violent 2nd gear engaging, 99.9% of those people stripped 2nd gears (the other 0.01% is about to...). I put more than 40 litres of fuel thru my car (still have the 3mm stock chassis) and haven't stripped a 2nd gear.

What I'm doing for not stripping? Easy: adjust the shoes very close to the endbell (the gap on my second gear is about 15/100 of a milimeter - measured with a feeler gauge). And of course, a correct meshing (remove the 1st gear just to mesh the 2nd and then reinstall the 1st gear spur).
I have about 6 litres through my new completely stock MTX4 and my gears are still perfectly fine. As they guys have stated above I am careful with my mesh and I removed almost all of the gap between the 2 speed shoes and the housing itself. Also be careful you set your throttle EPA correctly as this can make the motor lean away from the mesh if it pulls the carb too hard.
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Old 08-21-2006, 08:28 PM   #5868
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Quote:
Originally Posted by Corse-R
Sirio (Stock or STi), with the new Sirio pipe... adjust the ratios to a little short one (hint: To really make it scream, maybe you need a shorter pinion cluster on your MTX4).

Maybe a Murnan Sirio could be your ticket for a scary ride.
the crank on my sirio sti broke so um hmmmm idono.
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Old 08-21-2006, 08:31 PM   #5869
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the gap on my two speed shoes are to the book and if you tune your motor right it works fine,for me anyways.
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Old 08-21-2006, 11:42 PM   #5870
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Originally Posted by Osiris 75
What about the JP 12-3?? Anyone heard anything about this one?
I would bet this engine is plenty fast, but I don't think it is in the price range he specified.
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Old 08-21-2006, 11:52 PM   #5871
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If you are considering an OS TZ.12 you may want to look at a STS D3R, i run one of these and eat the TZ down the straight, and it's getting quicker as i run more fuel through it. It is not a competition motor like a JP, EVO3, or Nova, but plenty good enough for our club level racing, and heaps cheaper than the OS.
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Old 08-22-2006, 03:19 AM   #5872
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How many of you guys run the 24t pulley?

And have you had any issues with the side belt coming off?

Cheers Daniel
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Old 08-22-2006, 04:01 AM   #5873
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How many of you guys run the 24t pulley?

And have you had any issues with the side belt coming off?

Cheers Daniel
coming off and breaking and breaking the front belt and cvd breaking , so i just run the 25 with 1mm diff front and rear tires and the car drives better and the belts stay on and dont break
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Old 08-22-2006, 04:16 AM   #5874
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I run the rubber side belt and the front and back belts are the stock kit ones. If I run the rubber belts on the front and rear I only get about 20 minutes of running on them before they break. I get Days and days out of the rubber side belt. I have not had any issues with the side belt coming off. I use the 25t side gear.
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Old 08-22-2006, 04:19 AM   #5875
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Thanks guys for the great advice. I am gonna stay nova based. I am thinking maybe a jp stocker if I can find one cheap enough or the novarossi 12-3.
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Old 08-22-2006, 08:25 AM   #5876
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Hi Guys...

Any idea thats the difference between the novarossi plus 12-C and plus 12-CT ? Thanks... and any hobby website selling them that do ship overseas ?
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Old 08-22-2006, 08:44 AM   #5877
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versions???

i was just about to confirm my order with RCmart.com, when i noticed that they note (version 1.1) on the MTX4 kit they sell.

I've placed my order on hold, until i find out whether or not there are later versions to the MTX4.

Can anyone shed some light on this.

Thanks in advance.
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Old 08-22-2006, 08:53 AM   #5878
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Originally Posted by Glenn
i was just about to confirm my order with RCmart.com, when i noticed that they note (version 1.1) on the MTX4 kit they sell.

I've placed my order on hold, until i find out whether or not there are later versions to the MTX4.

Can anyone shed some light on this.

Thanks in advance.
I'm not sure if there is a newer version available but I do know that if you live in the US and buy an overseas version, you will not get support from Mugen Seiki USA. Each chassis has a serial number. You probably won't need the support, but you never know. Just a consideration to take a look at.

I know Mugen does running upgrades/improvements to their parts but I've never seen them give the kits a version number.
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Old 08-22-2006, 08:59 AM   #5879
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Originally Posted by Bad Mika
Hi Guys...

Any idea thats the difference between the novarossi plus 12-C and plus 12-CT ? Thanks... and any hobby website selling them that do ship overseas ?
The diffrence between the two is that the other one has ceramic bearing. I think its the ct that has it.
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Old 08-22-2006, 09:01 AM   #5880
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Originally Posted by THE DOCTOR
I run the rubber side belt and the front and back belts are the stock kit ones. If I run the rubber belts on the front and rear I only get about 20 minutes of running on them before they break. I get Days and days out of the rubber side belt. I have not had any issues with the side belt coming off. I use the 25t side gear.
Are you using stock chassis? the stock one flex too much compared to mtx3's chassis. Try using the 4mm or 3mm of kawahara
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