the plumbing of the manifold needed for direct port injection? does this need to be done by a pro? and also for a 75shot on a 95 gsr with stock internals which would be better? a 75shot dry zex or 75 shot wet on the NOS gsr plate kit?

 

If you're talking about the drilling, then you can do that yourself. Mine took like 15-20 minutes to drill. Aluminum is easy to drill.

To answer your second question, a direct port system is probably going to be the best/safest way to use nitrous. It 1.shoots fuel w/ the nitrous and 2. sprays the fuel/nitrous mixture evenly into each cylinder evenly. The dry kits just spray into your intake charge, and could possibly not spray the same even amount into each cylinder; one cylinder might get less nitrous than the others.

 

oo i see. so it would be better to run a 75shot wet plate kit than a 75shot dry zex...but i hear lots of good things about the zex kit. the NMU fixes the bottle pressure problems and the mixture also which makes it different than other dry kits and compared to running a dry NOS kit. well thnnx for the input anyway..

 

Whoa, whoa, whoa. The NMU does not fix bottle pressure. Where did you get that from??? The only thing that really affects bottle pressure is temperature, and the amount of nitrous in the bottle.

Also, I'm not saying the Zex is shitty. It's a good, simple, easy to install kit that's pretty efficient, and gives you decent numbers. But it doesn't really leave any room for options. You're very limited in shooting with a single fogger dry kit. Just get the direct port wet and you can spray as much as your engine can handle!!!

 

the fuel pressure is raise via bottle pressure.

But the ZEX kit is designed for 900 psi bottle pressure. Go 75 shot with 1100 psi bottle pressure and you'll likely toast a piston.

ZEX cheap, easy, fast.

Wanna go more than 70-75 shot, direct port 4 fogger ONLY way to do it.