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Old 05-13-2005, 03:38 AM   #1
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Default RB V12 3 port or sirio s12tup pro....??

Heya guys...

Just a quick question,

What's the better engine between the RB V12 3 port non rody and the Sirio S12 TUP pro ??

They Are similar in price, And i'm planning to buy one or the other soon!!


Any thoughts / suggestions welcomed..

Kyle
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Old 05-13-2005, 10:34 AM   #2
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Kyl3.. If you're thinking about buying a Sirio, you should consider the EVO II or the new EVO III as far as bag for the buck/dollar... The RB v12 3 port is a nice motor, but the EVO III is even a better motor then the EVO II WC that won the worlds last year... Oh and the price point should be pretty close to what the RB costs... The lower priced Sirio's are ok, but if you're looking for speed and power, then the EVO II or III should be considered. I hope the info helps. Either way, you can't go wrong... Both brands are very good.

RC_Alan
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Old 05-13-2005, 11:38 AM   #3
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I had experienced with those 2 engines that you mentioned. The one I'm using right now is the RB V12 3 port and I like it better that the Sirio. It's easier to tune and holds the settings for so long. Also, a lot of racers told me that RB will last longer than Sirio. I know somebody that has about 6 gallons on his RB V12 and it still runs good.
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Old 05-13-2005, 04:51 PM   #4
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Thanks for the useful replys guys

I am thinking i will buy the rb, as it's very well supported locally.

Whats the big difference between 3 and 5 port?
Obvoiusly i understand that it's the amount of ports, But what does that do for you on a tenth scale nitro engine?

Kyle
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Old 05-13-2005, 06:27 PM   #5
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Quote:
Originally posted by Kyl3
Thanks for the useful replys guys

I am thinking i will buy the rb, as it's very well supported locally.

Whats the big difference between 3 and 5 port?
Obvoiusly i understand that it's the amount of ports, But what does that do for you on a tenth scale nitro engine?

Kyle
more ports = more power
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Old 05-13-2005, 06:47 PM   #6
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I have an RB V12 Turbo (shaft and head) 3 port. Very fast motor and if operated correctly, is a much better investment than a Sirio. Similar performance (I think RB is slightly quicker and has a much better powerband across the rev range), more durable ( Sirio have a major problem with crankshaft breakages. The distributor in australia is giving away a new crankshaft with every engine because a breakage is inevitable ), and best of all, the RB importer is in Sydney and at nearly all race meets (moorebank), carries all parts, and is very supportive with tuning and any other issues you may have with the engine. I frequently visit him for help and parts and he has never let me down.

P.S. He is doing good engine mods cheap, and he covers all his work!
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Old 05-13-2005, 08:13 PM   #7
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I`ve put about 5- 6 gallons (nearly 20litres) through my RB v12 and its ran very very well.....still very tight and holds its tune exceptionally well.
I`ve spoken to a number of racers here who use the EVO2 Sirios and theyre very happy with the performance, but as mentioned the crankshafts here are an issue.
Cheers
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