Quote:
Originally Posted by Jaylyons1
Reliability goes right out the window with a tune that aggressive though with a stock setup (even with the 4g63). I knew people kept doing that in AK and kept blowing motors. Gotta have those supporting mods!  I imagine the 4g63 can withstand a lot more boost than the 4b11 though. I haven't researched the new block at all since it came out though. |
Not exactly. Plenty of people are running pretty potent setups without any problems. Look up a poster named 4RETECH on EvolutionM, he has an Evo VIII with 400+ hp and has well over 300k miles. But seeing how you mentioned AK, don't they only get 90 octane at the pumps? Maybe that might play a role, unless everyone there mixes in some 100 octane to bring it up.
About the 4B11, even though it has an aluminum block, it's seeming to withstand a good amount. I think its upper limits might not be as solid as the 4G63's, but I don't see too many threads about blown Evo X motors.