Hey guys,

Any tuners/companies modifying the bore and stroke for the IS-F? Is it even practical and possible to achieve about 100 more hp and torque by this mod alone?

 

No, it's not going to happen to an engine with thin iron liners cast into an aluminum block. There's no way to bore the cylinders and not make them significantly weaker. Stroking would only lower red line.

Now, if your goal is power at any cost and you're OK with building an engine you'll throw away every 25 to 50k, you might be able to squeeze a little more with bore or stroke, but you're stepping into the realm of dramatically shorter service life by doing this.

 

Thanks Lobux...I was going to pm on this since I noticed you seem to know a lot about engines but you already replied
A friend told me about how Dinan has this mod for the new M3,he said it was about $20-25k

 

OT: You got a nice F there buddy