Lemme lay it on the line... I wanna go much much faster. And in a way... I wanna do it just for a few races; to be a total surprise. AND, since everyone wants to take their sweet time making Turbo kits... I'm kinda stuck with what I got.

SO... I've got a bottle sitting behind me. I'm thinking about shooting a nice 100-150 shot of nitrous for a quick race or two or three. LISTEN CLOSELY, I've got Forged Pistons already. They aren't in yet... they are sitting in a lovely box behind me. I've also got Golden Eagle head studs to complement them and will have the Cometic LSJ head gasket as well.

SO... a few of my real questions. Is there a way that I can have 2 tunes? I've got my regular stage 2 tune, I flip a switch and I'm on a Nitrous Tune. Is there a way of doing that without a Standalone or any REALLY REALLY Expensive tech? I suppose that worse comes to worse... and I can have the Nitrous tune on for a few days... then get it retuned with one of WickedSS's tunes after I'm done doing my Dirty Work.

Is there anything else I should know? With that big of a Shot... I imagine that I will need to do a wet shot.... that would be the best. Any other n2o or go fast wisdom that I should have? I don't know too much about N2O.



My current mods are: Fujita CAI, Stage 2, 2.8" pulley, GMPP header, GMPP Performance Cat-back, Ingall's, Intense Poly Tranny Mounts, B&M Shifter... maybe a few others... none of which matter to speed. I'm still on the stage 2 tune... but I need a good 50-100whp boost. I'd rather have 100-150 to really just rub it in and make me laugh my pants off.



Any help is appreciated.

 

afaik its not possible to have a "flip a switch tunes" setup without some serious $$$
though, HP tuners and a lap top is pretty close.
a new tune is only about 30seconds away.....

side note: if you do get this going, we MUST see vids of that thing with a 150 shot.

 

doesnt the gm stage 3 pcm allow for two tunes, one being regular tune and the other beign 100 octane gas and nitrous capable?

 

I second that!

 

2 degree timing retard for every 50 hp.

6 degree's total taken out.

.062 nitrous .032 fuel will produce roughly 150 to the tire

.050 nitrous .024 fuel will produce roughly 75 to the tire.

.052 nitrous .027 fuel will produce roughly 100 hp to the tire.


these are the numbers for the jets based on a single fogger wet kit. base pressure of 58 psi. bottle pressure of 950.


now, the tune itself will have to switched according to type of fuel, and shot. there isn't an easy way of doing a flip switch. either you flash it to one or the other.

 

I would advise against going past a 100 shot, I know of a guy down here that cracked a couple pistons really fats, like a few sprays. If it does hold, you'll be lucky. A 150 shot might be enough to cause real damage, if you only crack ring lands you will be fine, but what if you damage something else?

What are you going to be racing?

 

Yeah... but that is tuned for a 50 shot. I want at least a 100 shot for some real good laughs.

Good Info, thanks. I know I have a friend with a Eclipse GS-T that runs 8psi, flips a switch and its on 15. Now, I know he is tuned on 15... but i wasn't sure if by switching between 8 and 15, if he was actually switching tunes, or if that way just part of his boost controller.

Even Forged Pistons will crack under that kind of shot? They are Diamond Racing forged pistons... I would think they would be able to hold that kind of shot with the proper amount of timing retardation.

The main race will be with an RX-7. We raced before and it was pretty close... he was on 8 psi then... and is now tuned at 16psi. It's a 2nd gen with a 3rd gen Turbo. It's not THAT big of a deal... but I just wanted a sneaky way to come out... and lay down some unexpected smack. It would be hilarious.

 

just hang on man, turbo is almost done..... **** is definitely even faster now... just a few more little things to iron out and it is good to go.

 

No, I doubt the forged pistions would crack, but you said they are still in the box, if you are planning on tearing the car down just to put pistons in so you can run your nitrous for an RX-7, you will be fine. I thought you were asking how you could do it on stock pistons.

 

The restriction (heat) produced by the small exhaust ports in the head is already high with a Stage 2 combo. I cannot imagine what it will be with a 100+ shot.

 

which is why people are melting downpipes.

 

Haha... nevermind... kid is a toolbag. He's still on 7psi. 50 shot will suffice! Haha, I still want a 60 trim on this bad boy though!

 

Here's a question... if I throw my 3.0" pulley back on... is the Stage 2 tune rich enough to just throw on a Dry 50 shot? Or am I still pushing the limits?