Question about valves in rb25det

[240sx-venezuela]

Hi there, this is the situation, I live in Venezuela and rb25 engines doesn´t exist here, I own a s13 hach, and inicially I was planning to put a turbo on my kade, but I´ve found rb25s with transmission ecu, harness, maf cost 2000$ and they almost have 300hp, and building a ka to reach the horsepowers that a rb25 has would cost more, but there is a thing that doesn´t like me about rb25, when the timing belt fails, it bend valves, so my question is: Is there a way to avoid this in case the timing belt fails? like using aftermarket pistons with valves relief so if this happens would not bend the valves?


I´m sorry for my bad english and the dumb question

[240sx-venezuela]

Anybody?

[Detroit.Tee.Tee]

Not that I am aware of. It is an interference engine. Timing belts are not likely to snap unless you're REALLY doing bad stuff to the engine. My RB25DET has over 100,000Kms on it, and the timing belt was changed at 100,000KM and still looked fairly new.

There are aftermarket alternatives to the timing belts. There are Kevlar, and other materials that make failure less of a possibility. Really, about any vehicle with a timing belt is an interference engine.

There is no way to get around it. Just be mindful of the 100,000km, 200,000km, 300,000km....... services.

[Darius]

You can't avoid it for a street driven car. If you replace the timing belt and, more importantly, the belt tensioner and belt idler pulley, it will be fine for a long time.