Yes it is!!ANDY H said:Is 550bhp not serious power for a production engine then!
Awesome numbers mate!!RH9 said:Standard conrods are fine to 700hp - prob to 750hp IMHO.
Its revving over 8000rpm that kills them and thats usually only due to the standard conrod bolts stretching.
I'm making 560hp at 4 wheels on a hub dyno so I guess i'm prob just shy of 700hp at the engine. Done 58,000kms on 1.6 bar without throwing a rod.
Also seen a 34 NUR tuned by the same chap who tuned mine - that make about 580hp at 4 wheels and runs stock bottom end. He's travelled around 15,000kms without incident.
I think a fresh R34 motor should have no problem making well over 600hp reliably if you keep rpm down and the tune detonation free