runnin about 7-8 psi.. on a gsr with about 40k how long will the motor last.. assuming it gets...not beat on but just some "good usage" daily...

 

it will last a few years

 

https://honda-tech.com/zerothread?id=685372

 

I deliver pizza in mine, 6 days a week. Granted it's only been turbo for about 6 months and I hydrolocked it a few months back but I don't see why it wouldn't last as long as a non-turbo motor tuned properly. Atually if you think about it when it's turbo you don't rev it as high on average to get around as you would n/a so it might last longer. The problem is people always want more power. Next thing you know your cranking the boost and tuning more aggressive and boom, broken ring lands, blown head gaskets. Tune it good and keep the boost within reason and it should last for years.