Hi there,

I searched the entire web and this forum but didn't find even a hint regarding the limits of the AJ126 stock internals. Does anybody know what this engines limits are? Or even better which parts fail at a given power level like horsepower or torque. Maybe we could start a list like listing the part followed by the max hp level? I read everywhere how much can be achieved with xy mod, but nowhere do I read any concerns if the engine can handle these power figures... Any advise appreciated!

Rods - TBD
Pistons - TBD
Rod bearings - TBD
Main bearings - TBD
Headgasket - TBD
Valves - TBD
Valve springs - TBD
Crankshaft - TBD

 

It seems the AJ126 can be tuned to at least 553 HP and 494 ft/lb without any mods to any internals, according to this VAP page: https://www.velocityap.com/product/a...5-tuning-file/
VAP are a very professional and trusted mob who have provided literally thousands of tunes for the AJ126 and they take pride in producing and selling only safe tunes so this E85 tune is odds on to be safe, which in turn means that the internals should be able to handle a bit more than 553/494. How much more who knows.

 

Hey OzXFR, thanks for your answer, this sounds reasonable!