BEST "bashing" parts list

[Holty]

strechm, thanks again for you input. I think i'll start looking at Sirio's a little harder now. Though, i do have another question. When you say "incorrectly ported" what do you mean by that?

 

[StrechM]

Intake and exhaust ports are not large enough.

 

[Holty]

You need to understand that I do not race, I only build them and bash them then sell them to start another project. I've done some recent research on the .28's and from what I've learned the porting is less than what you may want for the power that you are looking for.
Any of the Picco 26s work great. I've had two of the Ofna/Picco Outlaw 26s in T Maxxes, very quick! The Sirio 27 I can personally vouch for. I have the non pullstart pro version in a truggy and on of the lhs techs has the pullstart racer version in a Savage. They are very powerful engines for pushing the heavier off road mt's.
At the lhs we layed out the Sirio, 23 and 27, the RB C5 and 28, Fantom 27, Orion Wasp 28 and the Top 28 on the counter side by side to get an idea of what type of quality the mfrs were producing. The Wasp 28 and Fantom 27 failed miserably and the RB 28 and Top 28 are incorrectly ported. The RB C5, Sirio 27 and 23 seemed to be the most impressive out of the lot. Many of the UE racers use the RB WS7 as thier choice.
Undoubtably there are many more that I am unaware of.

Just from my personal experience the Sirio's were the easiest to tune. I cannot speak for the RB products, I have not owned one.

That is a great comparison, I know you can tell alot about a motor just by looking at it and knowing if it's quality or not. Can you tell me what the difference's are between the sirio .27's? Also, did you happen to take any pics you can post of the comparison all the engines side by side. That would be cool