OK theres not to many LS1 guys running n2o with a FI system, but i know there are a few LT1 guys with it. What about you TPI guys too?
Any one here with that setup?
I was thinking of a small shot 35-100. too cool down and get me into the nines down the road.
How much timing to you guys retard? are you using a wet or dry shot? any other tips?
Ive also been thinking about a nitrous/propane kit for the extra fuel needed too. Any vette guys with the BTR kit?

Last time at the track i saw a 03 cobra there running a smaller pulley and a 75 shot, said he put down over 570 to the wheels.
Hey you got to keep up.

 

ho come on, I know you guys are using it, at least someone is?
I saw a guy have it on his vortech supercharged ride. was running 20lbs of boost and a 35 or larger shot. best for the day he ran a 10.02.
dont keep it a secret.

 

This isn't exactly the biggest 3rd gen board, so you might have trouble finding many folks running 3rd gens with nitrous here... Maybe thirdgen.org?

Dave

 

He has an LS1.

Not running an intercooler? I think that would be the easiest. I know a guy who can fab up intercoolers if you want. He works with radiators and stuff, same thing really. I'll ask him tomorrow.

What about water injection? That will cool things down a bit, and will be safer. Cheaper, but probably won't add as much power as nitrous.

rskrause on this board has a blown and juiced LT1, he can probably answer any questions you have for this stuff. Send him a PM. Here is a thread in the FI section on this...

I've seen in the Jegs catalogs they have an NX N-terCooler or something, maybe thats what you want?

 

Alright, thanks for the help, I havent heard of thirdgen.org before ill check them out.
i do have an intercooler, and my CR is now 9.0:1 (forged internals.) I just want some extra power from the carrot juice.
I also plan to use propane, which acts like an alki kit on reducing knock.

 

Smokin,

When it boils down to it an engine is an engine. Doesn't matter which engine it is, or what kind of car even.

The only differences I'd anticipate on possibly coming up, is if you have an FMU. That being the case, you'll need to regulate fuel for the Nitrous Nozzle to a stable pressure (and hopefully one you'll already have a baseline tune-up for). Using the factory specified Jettings, with only a small 35hp system, I'd feel *OK* coming off the fuel rail for fuel supply.

Feel free to post back or private mail me if you have something you wanna go over.

Good luck!

 

Well one thing with the tuning. Do you retard the timing like you would NA? About how much would you retard it per shot size?

thanks

 

General rule of thumb is 2 degrees of retard for every 50 horsepower shot of Nitrous.

 

I am using nitrous and a centrifugal on an LT1. The issues with a TPI would be very similar. I think a wet system is much easier to tune, just switch the jets. Timing follows the same general rule as with nitrous+NA: small shot (50-100) retard ~2 degrees. Over 100 ~4 degrees. For a really heavy nitrous hit, that's out of my area of knowledge. But I'm guessing you wouldn't want to reatrd too much more than 4 degrees, but that's just a guess.

Obviously, larger nitrous shots require colder plugs. I am running 200hp and 14lbs of boost and have the coldest plug (excluding specialized plugs like those with retracted nose insulators, etc) NGK makes for my heads. You will need a strong spark to fire with the high cylinder pressures from a "dual power adder" setup.

You need to run a lot of extra fuel with a setup like this. Mine is tuned for 11.5:1 AF ratio with the nitrous, and some people recommend as low as 10.5:1. I would be sure it isn't any leaner than 11.5:1 anyway.

Rich Krause

 

Good info, thanks