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no.
i have 1 tune. my car is tuned for no nitrous, with a decent NA map.
then i use and MSD 8975 (multistage timing retard) to automatically retard timing as the nitrous solenoid is activated. Go read the instructions, it will show you how it works. you can also use this part to pull timing when you start the car, making it easier on the starter in a high compression NA setup.
I pull a specific amount of timing depending on how much nitrous i plan to use.
GSRCRXsi, why would i add fuel via the computer? why make the computer overly complicated? You see, when you use a wet kit, you use 2 jets. 1 for fuel, and 1 for nitrous. You have to size your jets accordingly based on fuel pressure and bottle pressure. There is absolutely no need to make your computer do anything at all.
How do you guys think the people do it in carburated vehicles? Why make things overly complicated? Why not go with what is tried and true for 30 years? If you are building a common car, do it the common way. Dont try to be different. If you are building a competition car, and cant find anyway that already exists to do something, then make something. Otherwise, go with whats already there and already works.
Import guys seem so impressed with what they are doing, most people fail to realize that the domestic crowd has been there and done that. Learn from the past to be better in the future, dont forge a new path parallel to the old one, start at the other ones end and move ahead.
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automatically pulls proper amount of timing
with?
I'm not really into nitrous, but I see your logic. But pulling timing IS inefficient use of compression.
it may seem that way, but remember, by pulling timing, you are preventing detonation. And by that small pull of timing, you are allowing for more air and fuel to be stuffed into your engine, making up the difference several times over.
I try to bring this information to light in an effort to pass the knowledge on. I learned/am learning still about nitrous from a group of guys that have been using it for quite a while. Oldest one has been usin the bottle for about 25 years and owns a 8.2x's street legal car. He's a plethora of knowledge and i trust his views on nitrous more then anyone i think i will ever meet.