How much power do you think is safe on stock internals?

JTTZR

I think it all comes down to the trade-off between more power, a shorter life span. Strongly correlated with that is the $ investment as well as the quality of the work & maintenance performed.

At the end of the day - assuming a realistic tune (on a limited budget) - the trade-off will always be greater wear and tear as 99% of us are on a limited budget.

So, really, you probably need to work this one backwards:

1) How long do you want the car to last?
2) How much power do you want?

Out of those two variables results the required budget. So:

3) What's the required investment?

Out of these three variables you could create a pretty solid (and simple Excel) function (using either a sample via questionnaire or good experience figures from Z experts like Sam) - but it would still not necessarily account for the quality of the work and maintenance done on the car.

Sorry, the post is a bit theoretical in nature.

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2014 Renault Megane R.S. Cup 265
Pipercross Panel Filter // Fastchip Stage 1 ECU remap