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-   -   Sirio engines thread (https://www.rctech.net/forum/offroad-nitro-engine-forum/29456-sirio-engines-thread.html)

M7H 03-07-2007 12:55 AM


Originally Posted by Sirio2127
Sirio makes 2 types of engine's one for the public and a totaly difrent engine for there factory drivers.

So they make good engines to win titles, and they make crap for the public?.....

twiggy 03-07-2007 02:13 AM

hmmm
 
i can tell you my stock sti is no slug :sneaky:

twiggy 03-07-2007 02:15 AM


Originally Posted by MRX4-R03
Is Ron Atomic still running sirio, because I know he is still on the o.s. web site for the .12tz

as far as i know yes

rmdhawaii 03-07-2007 02:43 AM


Originally Posted by Sirio2127
Tim you Hit it Right on the Head And this is were the problum lies. Sirio makes 2 types of engine's one for the public and a totaly difrent engine for there factory drivers. I can see you are an avid sirio supporter and I was very much like you for years. I would love to see sirio come back stronger than ever. But I think very very big changes must happen for sirio to return as a quality engine producer as they once were. Regards Jeremy.

Two "types" of engines? Can you be more specific? Are you talking about materials or engineering? I think it's safe to assume that the Team guys are guinea pigs for the company's Research and Development department. That is perfectly understandable. If you're saying there are "Team only" engines, for which the engineering is never released to the public, that's a different story. :sneaky:

What type of "very big changes" are you referring to? Where is the problem? Is it in the areas of engineering, manufacturing, quality control or post-sales support? Is it all engines or just specific product lines?

You're making some pretty broad statements. Some supporting details would be appreciated.

:)

Sp Racer 03-07-2007 03:01 AM


So they make good engines to win titles, and they make crap for the public?.....

LOL!

My out of the box STI was good enough to make it to the world's 200 mm semi final and gave nothing away in HP compared to the other "works" cars running...

And it is still going strong some 6 months later ( conrod & bearing change only)

There may be "special" engines - but I think that this in no way detracts in any way the quality of the Sirio product.. ;)

Tim Johnson 03-07-2007 06:22 AM


Originally Posted by Sirio2127
Tim you Hit it Right on the Head And this is were the problum lies. Sirio makes 2 types of engine's one for the public and a totaly difrent engine for ther factory drivers. I can see you are an avid sirio supporter and I was very much like you for years. I would love to see sirio come back stronger than ever. But I think very very big changes must happen for sirio to return as a quality engine producer as they once were. Regards Jeremy.

You misunderstood what I posted. I did not say Sirio made two different engines. What I was tring to say is the team relationship and the distributer relationship are two different things. I NEVER said that Sirio made different engines for the team and for the public :weird: ....... Sorry I was not clear enough.

Don't buy into the rumors. They are not correct. Team drivers come and go, contracts expire. A driver is not going to stay in one place forever, no matter what form of racing you look at. :)

rmdhawaii 03-07-2007 09:08 AM


Originally Posted by Tim Johnson
Team drivers come and go, contracts expire. A driver is not going to stay in one place forever, no matter what form of racing you look at. :)

Now that is definitely one thing that I can agree with. :nod:

Who a driver leaves behind doesn't really matter. I'm happy for the company they switch to. :) With any luck at all, a driver will be as successful if not more successful with the new company, as he was with the old one.

Sirio2127 03-07-2007 07:19 PM

Quality is the only prob with sirio engines. They need to take a good look at there manufactoring and quality control. I am not trying to bag sirio And i realy hope they come through with the goods. I think its the lack of offical info that makes the situation worse. For a long time they have had probs with how or who harden some of there parts. I gess I'm just disapointed with the last sirio i recived It was a great paformer and I wish i could use it. Regards Jeremy.

HarKonnenD 03-07-2007 10:06 PM


Originally Posted by Sirio2127
Quality is the only prob with sirio engines. They need to take a good look at there manufactoring and quality control. I am not trying to bag sirio And i realy hope they come through with the goods. I think its the lack of offical info that makes the situation worse. For a long time they have had probs with how or who harden some of there parts. I gess I'm just disapointed with the last sirio i recived It was a great paformer and I wish i could use it. Regards Jeremy.

So overall would you go with the Sirio or say go with an OS, ninja or Novarossi motor then?

Sirio2127 03-07-2007 10:46 PM

Ive been forced to switch and I chose novarossi. Simply because there are no engines in the country and there has not been since the first 5 21 sti pr pro evo 2 engines of witch i baught 2 and gave one to a friend that he ran at the australin nats last year. Its been a very long time and to put it simply I have one engine that can not be use. And not because it dose not run Infact its very very fress. I picked Novarossi because I was supported with an engine and From the start I tryed to brake the engine a Novarossi and it took every thing i through at it and its now 30ltrs old and with only one front and rear bearing change and a conrod piston pin and clip change Its due for a 2nd rod now. But it has to bee seen to be belived. I still support sirio because i have seen the best and worst it has to offer. I just don't understand why when and if a prob is braught to the atention of the factory they don't act on it. Have a look at the Ninja 21 on-road Every one knows that the very first lot had probs. Grp and Ninja I feel did the right thing by anouncing that there was a prob not all engines were afected but They put a recall out and it slowed the amount of failurs. To me if a company any company has the balls to say there may be a prob publicly and order a recall on certan batches. That shows me that they care about there reputation. If they do nothing and sweep it away because the company lets it go way to far then thats down right bad for bizz. That how i feel and Thats all i want to say on the matter. Thanks and Best Regards Jeremy.

Sirio2127 03-07-2007 10:51 PM

Ill clear this up now there are "no engines that can be sold as new in the class i run in australia 8th on-road". Regards Jeremy.

maskedrider 03-10-2007 12:57 AM

and after several attemp to find the leaking on my Sti engine....
still no chance of stopping the leaking... guess i have to put aside to used as a spare parts. :cry:
NOw.... i consider a 5port ( 3port out of stock in our LHS ) and seems like not much people are using cos of the IFMAR rules... so thinking just race in our club race.
Any majoy different between a 3port and a 5port ? the advantage and disadvantage ? Sorrie that i asked this question before but just want to heard you guys comment again before i make a discision... :nod:

twiggy 03-10-2007 01:32 AM


Originally Posted by maskedrider
and after several attemp to find the leaking on my Sti engine....
still no chance of stopping the leaking... guess i have to put aside to used as a spare parts. :cry:
NOw.... i consider a 5port ( 3port out of stock in our LHS ) and seems like not much people are using cos of the IFMAR rules... so thinking just race in our club race.
Any majoy different between a 3port and a 5port ? the advantage and disadvantage ? Sorrie that i asked this question before but just want to heard you guys comment again before i make a discision... :nod:

i would say that being a 5 port it would be more thirsty than a 3 port.
is the track you run on really tight or open cause theres no point in getting a 5 port if you can't use the extra power.

maskedrider 03-10-2007 01:46 AM


Originally Posted by twiggy
i would say that being a 5 port it would be more thirsty than a 3 port.
is the track you run on really tight or open cause theres no point in getting a 5 port if you can't use the extra power.

our local track are more to open then tight with a long straight and a long sweeper with very little corner.
this is how our local track look like ...

http://img201.imageshack.us/img201/4404/mrtrackku6.jpg

Sirio2127 03-10-2007 02:41 AM

Do you have any clue as were its leaking?. I have a list of thing you can do to minamise leaks that can efect tune. First is remove the carby use a fine pin to cearfully remove the 2 o-rings inside the engine block try just to grab the edge of the o-ring with the sharp end of the pin. Once that is done inspect them as sometimes when a carby is installed from new out of box they can cut a small bit off the o-rings as you slide the carby in. I sugest you take the stock ones and go to a shop that sells o-rings and get some new ones the same size and replace them in the block. 2nd is remove the carby retainer nut you must do this in order losen the side with the screw with the carby in the crank case and push on it as you losen it so it pushed the side the bolt screws to out. Remove that side and then use a hex key or very small screwdriver and push the outher side out. If you push them in to were the cut is made in the crank case for the nut to tighten on the carby you will damage the o-rings on the retainer nut. Check the o-rings on the retainer nut if they are marked replace them. 3rd is remove the carby ball link and the carby dust protection boot. With this step you have 2 options if you use the stock sirio carby boot you should clean all the oil from inside the carby dust protection boot and the carby with some metholated sprits or unleaded fuel. use a high quality super glue or CA glue put some in the grove in the main carby body were the dust protection boot sits being cearfull just to get it in the grove then replace the rubber dust protection bood and the ball end. If you are worried about glueing it you can use a novarossi or rb nova based engine one 12 and 21 size they are much tighter fitting and there is no need to glue them. If the engine is still leaking it could be from one of 3 places the back plate from under the head button or glow plug. but most likely its from the front bearing. Do not worrie about that they all leak all the time. The only way you can slow this down is with a rubber sealed bearing and even then it will start leaking not long after. The only thing you should be worried about is if paformance or tune is being afected If the engine is very very hard to tune and to get it to hold a tune Then It could be sucking air eather through the carby or front bearing. Dose your engine run good and dose it get good paformance. By the looks of your track id probaly be running a mid to high gear ratio It looks very free flowing and high speed? Regards Jeremy.


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