NOS + Boost = Fun
Join Date: May 2003
Location: Ormeau, Gold Coast
Re: nos how much how hard
One thing to remember about N2O, is that is is not eh nitrous that burns in the engine, all it does is increase the engine's ability to combust fuel. Thats why you need to run a wet nitrous system once you get above the 150HP mark.
The Pils supplied with a nitrous kit, usually from 25 to 150, with a few in between, are supposed to rate HP increase at the wheels. ie 100HP shot of nitrous will increase RWHP by 100HP.
If you are serious about running nitrous, you would be silly not to put in a set of forged pistons. With constant Nitrous use, you will eventually crack a piston, and to a lesser extent, your rods. Nitrous will also find any probs with your rings in a hurry, so you will want a new set of those as well.
And as xdc351 said, i will not "blow the welds on your intake".
As for the question on how long will it last, that depends on 2 factors. 1- how much Nitrous you are using, and how big your bottle is.
Nitrous flows are as follows. For every 25HP shot, you use 1 lb per minute.
So if you are running a 100HP shot from a 10 lb bottle, you will get 2.5 minutes of use. So if your car runs 15sec qtr for example, you will get 10 full runs out of your bottle.
ie 2.5 mins = 150 secs.
15sec / 150sec = 10
10 full runs.
These figures are ideal examples, you will always get a slightly higher flow rate from your nitrous jets, and will not get 100% use of your bottle, so in the above example, you will probably get 8 maybe 9 full runs.
Hope this helps.
70 GT Ford Capri
302 Windsor (347 someday)
Auto, Manual - Manual, Auto.
(I'll work it out one day)
Hilux Diff - 4.1 Detroit Locker