I am planning on going all motor. I have decide to go with a B18c1. I was going to go with CTR pistons but i also want to run between a 75-100 shot nitrous and I am worried that the CTR's wont be strong enough as I want this to be fairly reliable. What piston\rod setup would you suggest to get to about the same compression and be more durable?

 

Your compression will be too high with CTR pistons for nitruous and that coupled with the fact that they are cast arent a good combo... Go with a set of forged pistons and rods... 11.0:1 is a good nitrous compression...

 

Some people like Total Seal rings as well. These may, or may not help, but an idea is always good

 

What kind of whp should i be able to make with around 11.0:1, cams head work etc.?

 

It depends what setup you decide to go with. What cams? You'd need more compression if you want to do some cams. Even for some CTR or ITR cams I would recommend around a 11.4:1 compression. Head work can help that engine breath, make sure it's done by a reputable place, personally I'd ship mine out and not have it done locally (then again nobody here does any head work for imports). It wouldn't be too hard to make 170-180whp with a decent setup on a GSR. CTR cams, i/h/e, cam gears, 11.4:1 CR, intake mani, and some tuning should do it. Similar to my setup, just need to do the pistons and I'm set.