looking to install a nitrous kit on a 96 A4 camaro. it is a dry kit. should the nozzle be mounted before or after the MAF??? how much spray can it take without messing with the timing?? Im thinking the nozzle should be mounted before the MAF so the MAF can do its thing, BUT wont that be too far away from the throttle body?

 

If its a dry kit you want the nozzle in front of the maf. Also if this is a stock bottom end car with stock injectors I wouldnt run more then a 100 shot. Anything above that your going to want to go to bigger injectors but personally I would go to a wet kit after that. Good luck.

 

so the dry shot doesnt use the MAF like the LS1 dry kit does?

we may go wet shot. will 125hp shot be safe? timing wise and stock internals?

 

Yes, your going to place the nozzle in front of the maf.

Anything can go wrong but that should be ok, just make sure you get all the safety equpment.

 

Nah, it's NOTHING like the LS1 dry kit that sprays nitrous into the MAF and then relies on the computer to add the additional fuel......and, you want the nitrous nozzle "after" the MAF (twords the throttle body side)..no reason to spray thru it and it's not exactly great for it either .......Since I take it you haven't purchased the kit yet, I would just go with a high quality wet kit...it's much more exact in the way it can be tuned....especially in your current situation if you don't have a means of pulling some timing out while spraying....so instead you can just go up in your fuel jet to add some safety if you wanted to(many kits already give super rich baseline fuel settings for guys that aren't pulling timing), and you can also go with a step or two colder plugs to get a little further away from the detonation threshold.......But by chance if you do go with a dry kit for your LT1, replacing your injectors, not nesessarily with higher pound units, but with higher quality pintle style injectors like the ford SVO's is highly recomended when using a dry nitrous kit....these type (unlike your stock ones) are much less likely to lock up under the 80 plus pound pressure spike exerted on them by a dry kit...many stock injector LT1 owners have found this out the hard way by instantly torching a piston after just a split second injector lock up....And IME, a 125 shot (even to the wheels) is fine with stock internals as long as it never goes lean............Also make sure to pick up a fuel pressure safety switch if your kit dosn't come with one....good luck......Joe

 

Id personally go with a wet kit if i were you. I have a wet kit on my 95 Z A4 and am currently spraying a 125 with no problems. You will want to pull timing no matter how small of a shot honestly. Its said 2 degrees per 50 shot you are spraying. Wet kits are much easier to tune are are a lot safer IMO If you are looking to run a safe set-up you should look into an upgraded ignition, window switch and a fuel pressure safety switch along with the kit. I know harrisspeedworks.com has a special on their kits and they are a really good deal. As far as the igntion goes if you want an all in one go with the mallory 685, its the hands down best for N2O cars as it has the built in window switch. Any questions let me know.

 

thanks for all the feedback fellas. wet shot sounds like the way to go. gonna go with a 100 shot and see how the engine takes it.

 

How did you make out? Tell us what you ended up with and how it was / is going on the installation.

I just wrapped up my install. It was a whole lot more work than I thought it would be. I spent easily $400 over the initial ZEX kit installation. But I ended up buying a Mallory VI, fuel pressure gauge / pillar, n2o pressure gauge, heater, fpss, colder plugs and a bunch of switches and LEDs. I even put a B&M trans cooler on the car while upgrading.

Very fun project but it has worn me out....

 

Yeah, same here, fun project but more work then Horsepower TV makes it out to be. Plus, if you want to do it the right way, the cost goes beyond the nitrous kit itself. For me, I spent an additional lump sum of money on the GEN X2 upgrade kit, the Mallory box, different plugs, the custom billet throttle body microswitch bracket, the spare tire bottle mounting bracket, and some custom length hoses.

 

Those $400 - $550 kits are the backbone but anyone who does the research won't stop there. I may have a problem but was expecting something more when I hit the nitrous.

I was due for a plug change but the effort was huge. I'm sore all over, and have bruises on the back of my hands and down my forearms . Still, I'm sure you agree, it's worth it. I'd do it again....

 

Do you have manifolds or headers? Now that I have the long tubes in, plug changes are done with little effort.

 

Just the factory stuff here. Dropping the starter motor for #8 (if I understand the cylinder #s and location correctly) was okay but the air conditioning plumbing did me in on #2. Three hours, two broken TR6s over two days was what it took to change one plug.

 

it worked out great. took about half the day to install. 9am - 2pm. we ran a 100 wet shot built from left over parts using NOS solonoids with an NX nozzle. we ran the car the following day at the 1/8th mile track. it went from a 8.7 to an 8.2 first pass on street tires. i told him (the owner) he might need the slicks and i was right. he couldnt get the car to hook out of the hole. but he was pretty happy with the nitrous though, he thinks hes the s*** now and now wants to run everybody. the wet shot is definetly the way to go with the LT1, it was fairly easy to install and it works. he had one of those aluminum intake elbows at the throttle body. first time i seen 1 of those things. i drilled and tapped a hole in it bout 2 inches behind the TB for the nozzle. sweet. i like them better than the rubber elbows because that nitrous nozzle aint moving for nothin. he had a b&m racing shifter with a button built in so i used that for the trigger. worked out great, no pinging or popping, just smooth sailing. i just told him, make sure your RPMs are up and the pedal is on the metal before you hit that button and to throw some colder plugs on. bottom line - it will take some hours to install, but very worth it. wet shot works.

 

Wow! 8.2 resolves to 12.7 in the quarter mile. Fast car now.

You had nitrous in a five hours. I had mine with the easiest kit on the market in 3 weeks.

 

Put some headers on, you arms and hands will thank you in the long run.