I see most are rated for 125 hp. Can you jet them more? Say 200hp?

 

You could go higher. I haven't played around with the jetting enough to know for sure, but 175 will be close to the edge. I highly doubt the plate could support a 200 hp shot. You never know until you try.

 

Yes the plate will support larger shots, because it is, in essence, a cheater plate. This comes directly from NOS tech; Super power shot, Cheater, and TPI plates have the same size and same number of orafices on the spray bars. The cheater plate has been packaged in the super power shot kits for years. The TPI plate is based off of the Cheater/Super Power Shot plate.

The selenoids are the biggest difference other than jetting. A larger line from the nitrous bottle would be requred at larger settings as well.

The kicker is that your intake is the deal breaker. I wouldnt even want to try that big of a shot on a dual plane, let alone any variation of TPI from the factory or aftermarket, not even an HSR. A TPIS miniram would be a huge "maybe".

Fuel distribution is the biggest killer here. The nitrous is light and will go all over, but some cylinders will of course will still recieve more than others. Think of it this way, some cylinders would see the same as an engine on a 75 shot while others would see the same as an engine on a 500 shot.

What is worse yet, that the fuel flowing though a manifold designed only for air will lazily go where ever it wants or in some cases go nowhere simply puddling until one of the cylinders that is missing it has a little hiccup of flame or spark into the manifold causing it to ignite along with the incoming nitrous, air and fuel.

If you have ever seen this, it usually resuls in a damaged air intake box (which the engine angrily will consume some of the smaller bits), taco shelled throttle body butterfly plates, and popped intake gaskets.

so in short, the plate will flow it, but the intake will not. There may be some exceptions, but I wouldn't.

 

you could use a direct runner kit though, those go up to 350 or so.

 

you can jet down a sportsman port fogger kit for smaller accurate shots or huge engine crushing shots.

 

NOS makes that noszle system. The system has sleeves that go under the fuel injectors. Its quite expensive last time i checked say 1500 or more. I think its adjustable to 300hp.

 

except for the fact of the angle and proprietary nature of the TPI fuel rail not to mention lack of space under the plenum would rule out its use.

additionally moving the injector's nozzle an inch further from the tiny hole it injects through causes the fan spray pattern to hit the walls of the "NOS-sle" where it dribbles in a mess into the port runner. That is why (along with the price) that the "NOS-sle" system has been an utter failure thus far at NOS.

 

Interesting thoughts. I am running a stealth ram as this makes a diffrence. I have thought about makeing a small sparcer that fits under the upper plemun, and fitting this with s nozzle for each runners. Thoughts?

 

I have a HSR as well. I wouldn't run more than a 150 (70N-73N jet) on it without going individual port fogger.

Something I could share with you is a personal design (that I am sure you will see someone running around claiming they "invented, built, and created") using a pair of nitrous plates cut from the upper to lower gaskets and with cheater spraybars or nitrous nozzles installed.

 

Others have run -6 line from the bottle and -4 line from the solenoids with bigger solenoids and have run up to a 250 shot with tuning on the tpi plate.