I have been reading a lot about nitrous recently. My question is what is the difference between a NX direct port kit jetted for 75 hp and a wet 75 hp shot with a single fogger. All of this is on a Jdm d15b vtec. Or am i an idiot for running higher than a 50 shot on a stock motor. Another scenario is jetting a direct port down to 60 hp also.

 

Direct port: Removal of manifold, and plumbing of all 4 runners. Then having to hook up distrobutiion blocks for nitrous solenoid, and fuel solenoids. Then use pipe bender to bend hard lines to the nozzles. Nitrous and extra fuel are injected into the intake ports through individual nozzles and jetted on a per-cylinder basis.

Single fogger: Removal of intake arm, drill hole install nozzle with locking collar and nut. Use single solenoid for nitrous, and single solenoid for fuel. Then use stainless stell lines that come with kit. Nitrous and extra fuel are injected into the air inlet through a common nozzle.

Hope that helps.

Jason

 

thanks for the quick post. i guess i asked the wrong question. i understand the different types of setups and how they work. i meant to ask whick one would be better to run on my motor. I don't have a problem plumbing the direct port. Just wondering if it is overkill for a 60-75 shot of nitrous. My main issue is either unequal fuel distribution of fuel with a wet kit vs. a direct port. I won't run a larger shot than 75 on stock motor also.

thanks again

 

50hp increase: Standard to 2 degress retard. Plugs should be std. to 1 step colder

75hp increase: 2-4 degress retard. Plugs should be minimum 1 step colder.

Jason

I would just do the wet kit then. Less work, since it is a stock motor. Also, plumb it about 6" from the butterfly plate. With the SOHC I never had a problem with unequal fuel flow. And I bumped those up to 90hp shots. Just make sure the fuel psi is there, and you have the right plugs and timing.

 

so a 75 shot is ok on a stock motor that is tuned a little bit.

 

Yes.

 

thanks