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Old 08-22-2008, 07:36 AM   #16
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Electrics is running already with 4 times bigger capacity than 20 years ago...

But for gas I think is is no improvement, engines will become faster and so more unreliable and so more expensive....
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Old 08-22-2008, 08:28 AM   #17
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Originally Posted by stefan View Post
We are already getting to a point where the 30 mm tires are having a hard time coping with the power the current engines throw at them.

If we increase tank size, the power will go up even more, run time will quickly be an issue again and the tires are wearing even faster.

IMHO, we need wider tires, like the 40 mm rears or maybe 35 mm, BUT not with Lola bodies.
And then we are back to 235 mm class and with .15 big block, which is great for me. This class also use 75 cc tank.
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Old 08-22-2008, 08:57 AM   #18
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And then we are back to 235 mm class and with .15 big block, which is great for me. This class also use 75 cc tank.
Actually they increased it to 85cc.
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Old 08-22-2008, 10:11 AM   #19
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Actually they increased it to 85cc.
Don't think so. Serpent 835 use same tank as Serpent 705, 710 and 720 which is 75 cc.
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Old 08-22-2008, 10:24 AM   #20
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From the roar rulebook.

9.2.8 FUEL TANK SPECIFICATIONS:
9.2.8.1 Fuel tanks must be securely mounted.
9.2.8.2 Maximum fuel system capacities are 75cc for .12 engines, 80cc for .15 engines, and
125cc for .21 engines.

So I had it wrong too, it was raised to 80cc.
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Old 08-22-2008, 10:33 AM   #21
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Originally Posted by ~McSmooth~ View Post
If you make the fuel tanks bigger, the engine mfrs will still find a way to use up the extra fuel in under 5 minutes. Then we'll be right back where we are now.
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Old 08-22-2008, 12:10 PM   #22
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Another way to look at it is that a bigger fuel tank will bring "Fuel Strategy" into play just as in an F1 race. Larger tank means more weight for the car to haul around so you could choose to start with a lesser load and adjust your pit strategy. Just some thoughts.... maybe it is too much for us to digest. While I am not in favor or disfavor of the idea yet, I do not think that the hobby would benefit from an engine that goes so much faster that it drinks twice the fuel as it does now. After all, we would need to redesign many of the existing tracks to accomodate a car with that much speed potential.
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Old 08-22-2008, 12:56 PM   #23
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Originally Posted by wingracer View Post
From the roar rulebook.

9.2.8 FUEL TANK SPECIFICATIONS:
9.2.8.1 Fuel tanks must be securely mounted.
9.2.8.2 Maximum fuel system capacities are 75cc for .12 engines, 80cc for .15 engines, and
125cc for .21 engines.

So I had it wrong too, it was raised to 80cc.
Ok no problem, but these are the ROAR rules. IFMAR don't have the class, so no rules and the EFRA rules is:
1/10 th I.C. Track cars
5.3 Fuel Tank
The fuel tank incl. filter and fuel pipes up to the carburettor may hold a maximum of 75 ccm. No loose inserts allowed

If you are a good engine tuner then it does'nt matter if it is a big or a small tank, but if you are a bad or not so good engine tuner, then it is better with a big tank.

You are right, I am right depend in which part of the world so let go racing.

Have a nice weekend
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