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Old 09-19-2009, 07:22 AM   #2341
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Interesting that while the Flash has a bit more peak power, it looks like the 35+21 has a LOT more area under the curve. Especially under 35k.
Yep, the good ol 35+21 is still one of my favorites. The Flash has a smoother powerband. Some people like that. I must say when geared correctly they can make about the same laptimes.

The Flash is slightly better on fuel consumption though
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Old 09-19-2009, 10:14 AM   #2342
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wanted to say thank you from homestead for the new power from thr RB M3........all I can Say is WOW!
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Old 09-19-2009, 10:54 PM   #2343
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The way to tell is to look at the timing in the crankshaft. There will be modification to the crankshaft timing intake window on the modified version. The sleeve is also not modified on the tuned, only on the modified version. Look for the teardrop cuts on the transfer ports on the modified version. The tuned has a stock looking sleeve.
Thanks for a quick reply. I opened the motor today and found out that it's the modified version. a closer look revealed matched piston and sleeve and crankshaft and head button as they have this matching #s inscribed on them. mines has "4" inscribed on all the parts. really impress with all the works that have been done to the motor. btw, this is my 3rd murnan modified engine from you guys. thanks alot.
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Old 09-20-2009, 05:25 PM   #2344
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Raced my new RBM3 over the weekend. So far, this motor is excellent, typically reliability of a Murnan (and RB) motor!

Only have about 1.5 litres through it, it broke it nicely, raced at Moorebank (large, open 1/8th type track) where run time is usually an issue. Motor ran nice and cool and was making about 5:20min on a tank (I have owned MM 353s, Capricorns, Sirios etc which struggled to make run time with my driving, so this is great considering the motor is not yet fully broken in). Ran it with a 2652 pipe.

Motor is still tight (about 80-90% broken in), but so far I would easily compare it with my MM353, so its full potential should show at the next couple of race days.

Michael.
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Old 09-21-2009, 05:29 AM   #2345
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I would like to thank Uriah for the awesome horsepower and runtime from the RBM3. I was able to take the win at the 1/10 scale Mid Atlantic Touring Car Championship in Richmond, Va this past weekend. I ran the M3 combined with the 2601 pipe and Nova medium header and got 5:45 runtime with the engine coming off the track after the 30 minute main at 265 degrees. Thanks again for the incredible power, run time, and reliability. GO MURNAN!

Charlie Wilson
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Old 09-24-2009, 02:09 PM   #2346
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@Grinder: Any thoughts?


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Originally Posted by fulcrum2 View Post
@Uriah,


how would you compare a Nova S21WCS09 against a 35+21? The little Nova carries an attractive price tag

2nd question: Would you personally rather pick a MM Cordoba or a MM 35+21? The price is the same and after your mods power output should be the same as well. Should I choose just by cooling head color or are their any other important differences?

Many thanks and best regards,

Stefan
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Old 09-24-2009, 02:28 PM   #2347
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If I'm not mistaken, doesn't the Cordoba have the smaller crank pin?
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Old 09-24-2009, 03:59 PM   #2348
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I've been very happy with my 35+21 MM engine in my MRX4x. Ran very strong at Nationals it was just a little "Thirsty"

Any thoughts on how to get the millage up?

I'm running Byron 25% with an additional shim, Novarossi 2015 pipe, med concical header. I did find being less agressive on the throtle helped, and I understand that the tank is a little small in the Mugen.

Thanks for the help.
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Old 09-24-2009, 11:35 PM   #2349
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No small crank pin on the Cordoba - Only the 359 has the small one (which gave me no issues over 5 gallons btw.)
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Old 09-25-2009, 07:52 AM   #2350
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Quote:
Originally Posted by Grenade10 View Post
I've been very happy with my 35+21 MM engine in my MRX4x. Ran very strong at Nationals it was just a little "Thirsty"

Any thoughts on how to get the millage up?

I'm running Byron 25% with an additional shim, Novarossi 2015 pipe, med concical header. I did find being less agressive on the throtle helped, and I understand that the tank is a little small in the Mugen.

Thanks for the help.
Lean it! You were blowing way too much smoke.
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Old 09-25-2009, 08:35 AM   #2351
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Lean it! You were blowing way too much smoke.
OK
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Old 09-25-2009, 04:04 PM   #2352
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I would like to thank Uriah Murnan for providing me with the incredible power and reliability of the Rb M3 wich allowed me to TQ the first round of the Florida State series infortunatly trouble struck early in the main and i tangled with a lapped driver causing me to chunk a tire however i did end up finishing the race in fourth. with the TQ point i am tied for third in the points thank you Uriah.

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Old 09-28-2009, 07:47 AM   #2353
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Originally Posted by RCAKid View Post
I would like to thank Uriah Murnan for providing me with the incredible power and reliability of the Rb M3 wich allowed me to TQ the first round of the Florida State series infortunatly trouble struck early in the main and i tangled with a lapped driver causing me to chunk a tire however i did end up finishing the race in fourth. with the TQ point i am tied for third in the points thank you Uriah.

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Old 09-29-2009, 01:16 AM   #2354
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Gentlemen,


most of the fast guys in our series run the Max XL9TQ. I would rather like to run a Murnan Nova - So which one is on the same level? Has anyone had a change to compare a Murnan vs. that Max engine?

Thanks a lot, Stefan
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Old 09-29-2009, 05:37 AM   #2355
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RCA was a bad name T.V.! hehehehehehe!
How is everything tommy.
Not bad big jeff how are you. I hope your still going to the open.
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