According to your statments, that overheating can damage crancshaft? How much do you have to overheat alloy steel to stressed it to come to point when it is brake? After heat hardening ( approx 800 C) you have make stress reliease heat up to 300 C. To make steel easy to brake you have to heat it up to 400 C and then it will brake. Did he overheat engine by that far? I realy don't belive it.
It broken because steel qualty isn't that right for this aplication and it is not news for anybody.

In the middle of my air leak problems, the car came off the track with a heat of 300F. I shut it down immediately. That was the hottest its gotten. I've heard of engines getting hotter, but not by much.

300 F is nothing!!!!!!! not to steel, not even for Al alloys used on pistons. that overheating has nothing to do with cranck problem at all. I used to test my P/S sets at 350 F for 30 minuts non stop.
In order to make more profit and stay in reasonble price range, companies using cheap materials-this is answer.

Good one! It's neccesary when you go racing to important events (Winternats, ROAR Nats etc...) Even if Atushi Hara won a a ROAR Nat with a stock NS3 I am far from having Hara's driving skills!!!!!!!

Show me a winnning engine that runs consistently over a 60 minute main at 300°F without destroying itself, or at least become useless afterwards.
Come on TG!!!!........ Until then, lets be realistic with what the market has to offer.
AFM

Talk to the winning guys who realy runs fast and 60 minuts race and they will tell you what temp their engine come out from A-main.
Winning engine is engine which is installed on winner's car, but there is touthands of similar engines which are not winners. If you look the statistic, some brands has more problems, some less.
Novas are much more reliable that any other well known brand today and Sirio is known has a lot problem with conrods and cranck pins.
BTW, tether cars at speed 320 km/hour come out from track 425 F. I know it is short period of time, but it is 425 F!!!!!!!!!
Nothing is going to be destroyed ( or shouldn't be at 300F), if it is, it is big error of design or it is done in perpouse to keep people buying new engines every time when they make even very small mistake in tunning. It is realy easy to blame racer that he tuned engine too lean and this is why engine blew up.
Have you ever see any of the manufacturers take blame of blew up piston? Give me one sample. Please.

I agree with you on what a Pro driver uses, and then throws away and gets a new one, but we are talking about us mortals who have to race with 1 or 2 engines all year, we have to take care of our engines and treat them well.

Don't agree with you on Novas beeing more reliable than other well know brands. Read on this same forum (and you've written about) the problems with Nova engines with MCP pistons not lasting the way the old ones did, JP engines with silicone crank ramps falling off, etc etc.
I've talked to people inside of Serpent about the real issues of why they broke with Novarossi....it's because of reliabilty issues.

Yes Sirios had carb and crank problems with the first TRP series, and then problems of premature wear of conrods on first series of EVO 2 (with the small head), but they have corrected those issues with the latest series of EVO 2 (big head), which says a lot of the company improving their quality over time.

I do agree with you that every brand is trying to sell more engines, so we have to deal with it, and be more carefull on what we do, and how we treat our engines, until someone produces a more realiable engine and doesn't push the price up because of that.

Yes, I've seen Sirio, STS, and JP exchange engines or refurbish for free, engines with proven failures of production, and that my friend is what we need allways, brands that support their products when problems arise.

There is no perfect engine, and never will be.

Peace on you man.

AFM

The picture of the Mugen MT-12 shown above proves a point here, how did it broke? Well, heat failure?, bad conrod?, too lean of a mixture? It all points to the same direction: either bad craftmanship, user's bad tuning, heat stress or bad gas It's all in the variables. Personally, I have yet to see an engine that runs reliably for 35 minutes at 300 + temperatures and lives to see the track another day.

Sure, I can race any engines at those temperatures if somebody else is paying for them at the end of the race (if it even finish it)

See I'm not making it to too many ROAR Nats. So I'll be okay without the super horsepower!

So you saying that Serpent guys are looking for more reliable engines but also less cost? Is Picco now definitely more reliable than Nova? I don't think more Power + Reliable = Less Cost. Those formula just doesn't make any sense to me...

As the power is increasing, of course price will be raisen. If not, then over million's of people are get fooled by Novarossi And I just wait for the fastest, most reliable, over 10 gallons life without lose performance, less maintenance, but only cost $100 engine

Oh yeah, btw where can I get those Ferrari's monster HP engine which is cheaper than my Toyota's?

cough cough hpi 15 fe is wut u want cough couh

o wait its not fast or reliable....

[QUOTE]Originally posted by daniz24
[B]So you saying that Serpent guys are looking for more reliable engines but also less cost? Is Picco now definitely more reliable than Nova? I don't think more Power + Reliable = Less Cost. Those formula just doesn't make any sense to me...

Yeap, that's the way it is not only in this case but in everything related to consumer goods. Why do you think so many American companies do business outside the U.S.? Trying to look for cheaper labor, cheaper raw materials etc... so they can have at the end a good product without the extra production cost and thus, mantaining or elevating their margins (profits). It all makes sense from a business point of view (believe me, this is what I do everyday)

In this case, I guess Serpent wanted a little bit more for their investment. It wouldn't surprise me that Nova Rossi demanded higher returns thus inflalting their prices (hurting Serpent's). I also guess that Picco presented a good deal to Serpent offering what you imply on your comments. You never know, business is business no matter in what industry. Reliability + Horsepower + Cheaper Prices = A SELLER! We'll just have to wait and see.

Last night came from our USA Nationals ( 1/8 scale) and want to tell about reliability.
In A-main were 3 Sirios ( one of them LCI) and all of them out of race before half way time. Very reliabe!!!!!
Peace!!!!!!!!!!!!!!!
I will probably start making parts for Sirios too-they realy need help for top quality parts.

Great news TG, just drop a post when you have some parts made. New better stuff is allways welcomed.......

AFM

Talking about reliabilty............. Adrien Bertin just won the 2004 European Championship (EFRA) for 1/8 th scale with his Kyosho/Sirio........so one big tournament won, one big tournament lost doesn't prove anything TG......
Peace on you!!

AFM