If you have to do this... I'd start small. Say a 20-25 shot. See how it reacts.

 

Thanks thats what i was thinking too, start small. Past experience has taught me that.
I had read somewhere that the bottom end was a bit stronger than the earlier versions of that motor. I think they changed the rods up in the early 90's.

Is that correct? I ask because that was my past experience, too much nos = broken rods.

Just figured I'd "ask the experts" this is my first volvo and I know next to nothing about them. But that's what the internet is for right?
I have not been to find many aftermarket parts for this car so i was leaning toward the nos. Maybe an engine swap is in it"s future!!

 

Well to be honest your not going to find many if any NOS experts on this forum. I am not trying to turn you away from us or go to another Volvo based forum. However here this is mostly a maintainence forum.

 

The later blocks are supposed to be better rods. They also have oil squirters that shoot oil on the bottom of the pistons.

 

I believe the internet community says that around the 90s they swapped to 13mm rods, and mid 90s got the squitered blocks.
your 94 should have it all.

cam shaft, exhaust, intake, and a tune with NOS, should be a pretty fun NA DD.

 

Well, nitrous is a way to put more fuel/air into an engine. The engine doesn't know nitrous from turbo boost. All the engine knows is it has more air and fuel in the combustion chamber at the point of ignition, no matter which method is used.
Given a B230 and a B230FT are fundamentally the same bottom end, head, cooling system and head bolts I would say that a stock B230FT can handle 230hp comfortably, so a stock B230 should handle a 80-100hp shot no problems. Given the usual very prief use of nitrous, cooling system is not an issue, nor is oil cooling etc. Unlike a turboed engine, when you are off teh nitrous, you have a regular engine.
Of course, the usual nitrous caveat applies, MAKE SURE YOU HAVE EXCELLENT FUEL PRESSURE AND FLOW!
Nitrous doesn't kill engines, lack of fuel does. Also, using nitrous at too low an rpm kills engines too.

Regards, Andrew.

 

Thanks for the input guys!

I have a daily driver so i dont "need" this car, but would hate to have to replace the engine untill I'm ready. [have a plan/goal]

We're deep into winter here in Ohio so any major projects are going to have to wait till spring. But I think that I can brave the cold long enough to hook up that nitrous system.
That will also buy me some time to make further plans. Like I said this is my first Volvo so I still have a lot of reading/learning to do.