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-   Nitrous, Super Chargers, & Turbos (https://volvoforums.com/forum/nitrous-super-chargers-turbos-23/)
-   -   stock b230f & nos (https://volvoforums.com/forum/nitrous-super-chargers-turbos-23/stock-b230f-nos-38805/)

SmokerMankiller 02-06-2010 01:34 AM

stock b230f & nos
 
I fell into a nice '94 940 today clean as hell! Tt has a b230f and i have an old nos setup from a previous car.

The car runs great but it could be a little quicker.

Just wanted to know how well the two would mix. How big of a shot could I safely put into that stock motor.

S70driver 02-07-2010 12:37 PM

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

SmokerMankiller 02-08-2010 01:40 PM

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!!

S70driver 02-09-2010 06:45 AM

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.

tech 02-09-2010 07:21 PM

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

TIPSP 02-11-2010 10:45 PM

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.

Typhoon 02-12-2010 04:31 AM

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.

SmokerMankiller 02-12-2010 05:24 PM

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.


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