Quote:
Originally Posted by wparsons
That's because Dodge way over built the engine stock, they're known to be very strong from the factory.
It doesn't hold 400whp + because of the low c/r, it holds it because it has very beefy internals stock.
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It's a combination of both. Good internals but why do you think factory CR is 8.0:1? There's a reason they didn't go with anything higher. The reason IS lower compression allowing higher boost.
I have 9.0:1 in my car at 30psi making 500whp on a twin clutch transmission.
On low, very low boost higher compression is okay but you cannot exceed 8-10psi without getting into the danger zone (enter Top Gun song)
I can't stress enough high boost = low compression, do you think I'm inventing this? Why do you think the STi, Evo, SRT, Most high hp muscle cars all run sub 9 CR's?
There is so much untapped power in the FA20 by lower compression and adding boost.