Alright, well my friend is pretty active at a sort of local track... only a 1000 ft track, but still. He's got a late 60's firebird with a built 400, an early 90's 5.0 with headers and exhaust, and an old beater chevy 350 half-ton that he runs up there for fun. He wants me to come race with him some day, and he's got a 75 shot setup that he switches between the vehicles, (yeah, even the truck lol) and he wants to throw it on my camaro. It's a stock lt1 with 113k on the motor. Only mods are hooker catback with a cutout before the axle jump. Would it be ok? I'm new to the N2O scene, he said all that needs to be done was put a hole in the intake tube just before the throttle body, and he could help me run everything. I'll be searching and all, but any opinions? It's only a 75 shot, so it's not too bad, is it alright, are there any risks?

 

Its fine to do i 75 in my opinon.just dont spray it alot.i would say go with a colder plug and your golden...

 

What kind of kit is it? Even though it is a moderate shot, I would still be worried about slapping a kit on there and seeing if it runs. That is one of the ways nitrous gets such a bad rap. Also, check the sticky at the top of the nitrous forum page that goes over all of the "safety" gear that you should run alongside your nitrous setup.

 

It's needs to be put before the MAF so the PCM can tell your car to add more fuel

 

Thats another risky issue as well, leaving the fuel delivery up to the PCM to figure out. That is why the dry kits that are on the market for the LT1s use some sort of booster signal method or something to spike the fuel pressure while the nitrous is in use, increasing the fuel that way.

 

I wouldn't slap a kit on there and just go spray cause theres a possibility something may happen. I'd atleast have a Wide open throttle switch ,a fuel pressure safety switch and some tr6 plugs just to be safe. Is this a dry or a wet shot and is your car an m6 or auto?
And make sure you spray after 3000 rpm's .

 

Right, he was talking about just putting it right before the TB though, if it dosen't go through the MAF he dosen't have a chance at getting more fuel

 

only if its a dry kit


it is probably a wet kit "hence" putting it infront of the throttle body

throw some good plugs in her and spray a 125

 

Install the correct accompanying parts and spray the hell out of it...

I'm on a 150 shot with 118K miles...been spraying the car all its life.

 

On an LS1 car, that would be fine as their PCMs have supposedly faster procesing speeds and can make the necessary fuel adjustments quickly. The LT1s PCM is different in that regard and it is risky to plumb the nozzle before the MAF in hopes of the PCM making the necessary fuel enrichment.

 

This kind of confuses me a bit. If the nozzle is placed after the MAF near the TB on a wet kit the fuel is supplied via the schrader valve. So the computer has nothing to do with adding fuel

 

Yes, very true. I was referring to a dry kit though.

 

In theory the MAF would detect more/denser air coming into the engine therefore increasing how long the injectors remain open per cycle. If the kit was a wet kit though I'd never put it in front of the MAF. Spraying gasoline onto heated circuits is a no brainer IMO.

 

In theory...yes...but the LT1 pcm does not consistently add enough fuel enrichment to compensate for the nitrous by spraying through the MAF. It just can act fast enough to keep from going lean. This is why the LT1 dry kits are placed after the MAF and spike the fuel pressure to deliver the extra fuel.

the LSx platform works very well with dry kits sprayed before the MAF.