http://jalopnik.com/5209398/2009-seo...yline=true&s=i

Look at the class displacement limit. 2.0 liters. Will probably be very competitive.

What is the class option for the 2.5. Probably 3 or more liters and likely not a chance of being competitive.

Yes the 2.0 is probably better to go racing with but it will be more a choice of the most competitive class for the car.

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Stoner & Webber 2011 World Champions

no, the 2.5 is a bucket of shit. the JDM imprezas are all 2L, why would they bother with a 2.5l?

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MY93 Impreza GX 1.8L, 0hp, 0nm

reason why jdm is 2.0 is because its stronger. the 2.5 was a play to increase market share in the other markets. and their market strategy was to get more cubes.

Wonder why they didnt go to a 3ltr instead of a 2.5? If they were shooting for more displacement that is.

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Honda Hannspree Edition CBR 600 RR - SOLD
Yamaha FZ1N - Purchased

using the same block design, i think 2.5 was the 'safest' they could increase it.

it becomes too hard when you have to redesign a completely new block etc.

i was privy to following conversion about sti engineers over previous bathurst 12 hours confirming that the 2lt makes more power and torque than the 2.5lt

No brake boosters in sight. It looks like they have gone with a proper racing pedal box and balance bar.

sorry, what i meant to say, it runs twin cylinders (front and rear) with the two reservoirs. pretty much a pedal box with in-car balance bar adjustment.

you will probably find that its in the 2.0L class so it competes with euro
sub 2.0L cars. And by default you have to have a 2.0l. I prefer 2.5l anyway more torque where you want.