Nitrous

Im wanting to get the tnt nitrous wet kit(the plate system). I plan on running 75 100 shot at the most. I dont think it comes with an inline fuel pump. Do i need an inline fuel pump to compensate for that extra juice?? Or can i leave it stock?? thanks

You'll need another pump. But what you really should do is post this in the N2O Tech section.:D

An "in working order" stock pump will suffice for that small a shot. Dont want the pump to quit in the middle of sprayin though:eek:

As long as you wire in a fuel press switch you wont have a prob with a stock pump though

the stock fuel pump will hold up tp a 150 shot, but if you plan on running a 100 shot i would invest in a adj furl pressure regulator, nice insurence. :D

afpr isnt worth much insurance if the pump is old or weak. it doesnt offer much if it's a new pump either.

the stock pump is fine for up to the 100 shot,but depending on age of car and mileage,you might want to consider going with as new pump.

it is always good to have a afpr when you are doing a wet kit if you dont then you have a good chance of somthing blowing.

nitropatch,please explain what good an afpr is going to do when our cars can read the higher pressure and adjust the injector pulsewidth accordingly to compensate for the higher pressure that isnt needed.

i have been 11.0's consistently with a stock pressure regulator and injectors with my wet kit. rskrause was making 600+rwhp with a stock fpr,so im not sure where you think it is needed to prevent something blowing up. under WOT the stock regulator opens up(increasing pressure,and the pcm knows this),and most everyone i know sprays under wot.

a new fuel pump s better insurance then an afpr for a wet nitrous kit,as well as a fuel pressure safety switch.

Originally posted by nitropatch
the stock fuel pump will hold up tp a 150 shot, but if you plan on running a 100 shot i would invest in a adj furl pressure regulator, nice insurence. :D

I wouldnt push the stock pump past a 100 shot and an AFPR is not going to give you any insurance......a fuel pressure cutoff switch will.

then i guess you guys are lucky or somthing because lots of people that i have seen run 10's and 11's have afpr because the stock one doesnt have enough pressure, the afpr will send the neccessary fuel so that the pulse will stay the same, more efficiant. but thats just what some of us LT1 guys think, maybe the stock one will work for you all but once you do more stuff you will have to get bigger injectors correct? all i do is turn my pressure up and everything is fine. but the afpr is also insurence when you have a blower. and just get a micro-switch so when you hit WOT then system works, alot safer that or a window-switch.

Originally posted by nitropatch
then i guess you guys are lucky or somthing because lots of people that i have seen run 10's and 11's have afpr because the stock one doesnt have enough pressure, the afpr will send the neccessary fuel so that the pulse will stay the same, more efficiant. but thats just what some of us LT1 guys think, maybe the stock one will work for you all but once you do more stuff you will have to get bigger injectors correct? all i do is turn my pressure up and everything is fine. but the afpr is also insurence when you have a blower. and just get a micro-switch so when you hit WOT then system works, alot safer that or a window-switch.

Quick, run! Find your flame suit. Going to need it REALLY shortly....

Originally posted by atljar
Quick, run! Find your flame suit. Going to need it REALLY shortly.... ???
:confused:

problem is,the pulse WONT stay the same unless you reprogram the injector constant. turn the pressure up and risk locking a stock injector? thats not smart.

you might want to read this thread.....http://web.camaross.com/forums/showthread.php?s=&threadid=218282

hes saying that people are going to start talking **** about what you had to say.

the AFPR is a good idea if you have the extra money, I would personally put in a walbro pump first.

Originally posted by nitropatch
the afpr will send the neccessary fuel so that the pulse will stay the same, more efficiant. but thats just what some of us LT1 guys think, maybe the stock one will work for you all but once you do more stuff you will have to get bigger injectors correct? all i do is turn my pressure up and everything is fine. but the afpr is also insurence when you have a blower. and just get a micro-switch so when you hit WOT then system works, alot safer that or a window-switch.

Ok I was just gonna put up the BS flag but instead Ill ask.....if the stock fuel pump can only deliver 37-38 psi when the fuel silinoid is open for a 100hp wet shot how in the heck is a AFPR gonna incraese the fuel pressure when the pressure is allready below the stockers limit ? The stock pump can only pump so much fuel and thats the point.

well i dont know what kind of fuel pump you have for stock but the one i had was good to 38-44psi at least thats what it said in my cars book manule, but i put a little better pump in mine i got the one from TPIS that supports up to 450 hp little better then the stock pump. but after reading the other post about the regulators i guess leaning it out a bit will help out at WOT due to the computer. when i squeezed my motor i did a 100 shot tons of times on satock pump and regulator but when i put the afpr in i felt more of a pull on the top end so on some cars it works better some it dont i guess.

Regulators can work that way, leaning, but cant richen it at all, if the computer senses more pressure it will just shorten the pulse of the injector, no way around it, all cars are the same, you didnt get a "freak". You felt a difference most likely because you told your brain you did, on a dyno there would be likely no difference. Listen to the guys above, they know their stuff.

There is some good info here, but some could be interpreted incorrectly.

First an AFPR will hot help if the pump cannot maintain the pressure.... setting the regulator to 55 if the pump can only maintain 45 at full throttle will not help.

If the car is lean the AFPR will help if the pump can maintain the higher pressure.

Now for the clarification to the above posts:
The computer cannot recognize the fuel pressure only the o2 reading. If the engine is lean the computer will add fuel (increase pulse width) which can also be added at full throttle to compensate for a lean condition (such as low fuel pressure).

If the car is rich the computer will subtract fuel at part throttle (reducing BLM's below 128), but not at full throttle. Your full throttle long term BLM's will always be 128 or higher. Therefore the computer will remove the excess fuel added (by increasing pressure), but only at part throttle.

Hope this helps.

yeah i think it has