Quote:
Originally Posted by WAM
My last wet kit blew the seals off the injectors due to a backfire in the plenum. So I'm thinking of going dry this time...with no fuel in the plenum, you can't get a backfire. But a nice thing about the wet system was you could activate it with the tank closed as a test that the enrichment system was working. The idle would drop from the too-rich mixture. Is there a similar safety check for dry systems? And another thing, on the wet system you regulated the fuel amount with a jet. How do you regulate, or even know how much extra fuel you're getting with a dry system?
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What kind of backfire? Nitrous backfire can occur from a faulty solenoid leaking or excess nitrous loading up in plenum. Ever see an intake manifold blow off, scarey $h1t!!!
I know for NOS dry kits, fuel enrichment is vacuum operated with a regulator. Real simple, less vacuum more fuel, more vacuum less fuel. Fuel jets are supplied for the regulator according to how much nitrous you use.
For safety get a fuel pressure safety switch to cut off nitrous if fuel pressure drops too low. Window switch good too if you accidentally activate below 2500 rpm or over rev with spray.
