So instead of doing any speculating, Im going to get the straight facts from crate engine depot. So far Ive been doing research into the GM stage 3 kit, and am leaning toward this instead of 60lb/hr injectors + 2.8".

For anyone wondering, I will list some facts about GM S3:

Includes:

PCM
Dual pass
Nitrous tune
100 octane race fuel tune
2.99" pulley
6.5-8k adjustible rev limiter

Information:
-For anything above 7k redline operation, valve springs and balance shafts are needed
-Nitrous tune is good for up to a 50 shot. Nitrous kit is NOT included.
-Is an addition to the Stage 2 kit

Modes:

-Rev limit adjustment is done through leaving the car off in accessory mode, and pressing the throttle

-100 octane mode is activated by leaving the car off in accessory mode, turning on the cruise control, and holding the set cruise for approx 10 sec.

-Nitrous mode is activated when the nitrous switch is pressed. Comes with the kit.

I will post more information soon. I have a whole list of questions for them. If you guys have any, feel free to post them and I will ask.

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For anyone interested in just a 2.0l LSJ book ( not the same as the ecotec build book ), go to crateenginedepot.com, and put in part # 88958686. Its only ~$17, and appears to have tons of good info

 

the pully is 76mm. 2.99 inch.
not 2.9.

 

whoops, thanks for the correction

 

I dont think the stage three is that great... Seeing as though im in TEXAS AND IT'S ALWAYS FREAKING HOT... I really need my A/C!

 

ditto, lol

 

ill keep my A/C, thanks...lol

 

bye warranty

it's not a bad kit... but aftermarket support seems better and you get to keep you A/C

 

isnt it like 700 dollars???

 

Another member on here said that he has it in writing from his dealership that the stage 3 kit, as well as the 50 shot, is covered under warranty. dont know if thats true however.

 

That is 100% not true.

I thought we got stage 3 info like 6 months ago? Well I guess some of us did. lol

It's not worth it really. You lose your AC basically, and you don't get much out of it. For less money you could get hp tuners and do all the rev limiter stuff and set it up for nitrous. Pulleys are cheap and you could go a little smaller then the 2.99 and be safe. I just don't think it's worth it.

 

Thats not really true. The stage 3 kit is MUCH safer than running 60 lbers, and a custom tune. The 60 lbers are WAY to large. Why do you think 90% of everyone whos blown their engine have been using 60 lbers.

Anything past a 2.9" has been proven to make the eaton unefficient. Stage 3 doesnt take efficiency past its limit.

So lets do the estimated HP comparison:

2.5", cooling mods, ported, whole nine, is around 290 ish HP <==Approximately

Stage 3

-with basic mods and 100 octane is 260-270<===Approximately
-8k redline, which means 2nd gear ends around 80-90mph
-and a 50 shot of nitrous

thats 310-320 HP after the 50 shot.

Now, the stage 3 kit is based on the time attack cobalt, which we all know pwned a 700? HP skyline, and a nitrous VW. It was created by GM Racing division ( spoke w crate engine rep ), and ITS POWER IS ON THE FLY.

This means, I can adjust the rev limit to 6500 for normal driving.

Or I can pull over, adjust it to 8k, turn on the 100 octane mode, and put my finger on the nitrous button ( if i have 100 octane, and nitrous of course ). Make an instant 300+ HP, on the fly. That is pretty damn cool.

Take it easy on the car for normal driving. Then turn it into a beast whenever I go to the track, without having to worry about how much damage a CONSTANT 20+ psi + heat that a 2.5" would bring. It seems like a good deal to me.

Even with only 260-270 HP, having an 8k redline will put u at a huge advantage. Think about it, 2nd gear goes to 80-90. Then when u up shift, you will start higher on the rpms, which means quicker boost.

Heh, Ive been talking too much. When I get it installed, I will get actual HP numbers without octane mode, and with octane mode. Im gonna wait on the nitrous for now.

F*ck the A/C!! A/C is for pussies! Sweat a little, it builds character. The women love it

$500 ish

 

I am the one with stage 3 and Nitrous and yes...it is covered by my dealership and yes it is in writing. Is this common? Who knows, but I am not a liar, mine is covered.

In fact I just had an issue with the set up and they took care of it for me free of charge like you are saying they wouldn't...and then asked for a ride with the nitrous engaged

(ps...get the saturn ION coolant overflow set up if you get the stage 3...I was pissing coolant for 2 weeks after the install )

 

That sounds good and all but how long is the motor gonna take that 50 shot before it goes boom.

 

What are your numbers? Do you like it? I really wanna get one.

 

Try close to 1800.00 installed with nitrous.

 

probly a lot longer than pushin 300 HP all the time, like the 2.5"ers are

no just the kit is $572. Thats with out install and nitrous. Its on crate engine

 

i like the idea of 100 octane tune on the fly with a nitrous setup that GM setup.

 

I really like it...I just took the plugs out yesterday after running through my first bottle and they look brand new pretty much. The car runs awesome on and off the bottle.

I get paid friday..will probably get it dynoed at that time..I have a lot of promises made to get people numbers...I would hate to dissapoint.

a 50 shot is no more dangerous than running a CAI if it is set up properly. This is fact.

The set up gm has for the nitrous is sweet. Before I get in my car I turn on the bottle and leave the switch off...then if someone in a STI pulls up...switch goes on and suby goes...bye bye

 

You have some GREAT points and i completely agree with everything you said. However remember that in order to safely take the engine above 7K, your going to have to have the neutral balance shafts and springs. I don't know exactly how much those would cost, but i can imagine they will tack on a nice few dollars onto that 500 for stage 3.

Also, some people cant exactly say "F" the AC. Not everbody lives in the frigid north US. I happen to live in south Georgia, where the heat index approaches 120 F in the shade.

Roll down the windows and it feels like you have 4 blow dryers being pointed at you at close range.

 

 

lol what? Ive never heard of anyone blowing an engine because they didnt setup the CAI properly. Unless they were so dumb they didnt connect it and sucked a bunch of crap into the engine.

ANd no thats not a fact. If your fuel pump takes a crap while going WOT with your CAI isnt going to kill the engine or do anything to kill it. But if your WOT with a 50 shot and fuel pump dies, then yes your engine is gonna crap hard.

Nitrous itself isnt dangerous, but in order for it to be safe so many things need to go properly. There are alot of things that if they fail on the car while on spay, will allow the nitrous to kill the engine pretty easily.

 

thats flippin sweet . Did you do the valve springs and balance shafts so u can run past 7k redline??

 

just buy a couple of those fans that shoot water. Tape them over the air vents, and tape the button down so theyre constanly on.

Damn, I should write this up in the How-To section...

 

You must have missed this part when you read over my comment.

So you are trying to tell me IF by some weird mishap your filter completely stops letting air in... your motor will be ok?


You are aware in advances in technology right? Like programs that shut nitrous off when you system detects errors...or your PCM like in the stage three controls the nitrous feed directly and will on fire it under perfect conditions.

My comment was made because nitrous is a lot safer than people think...it is the people who have never used it or used it improperly that give it a bad name...have you ever used it?

if you are the same idiot who would install a CAI intake to allow it to suck **** up..you are probably the same idiot who would install nitrous without safety devices that will shut it down in case the fuel pump goes out. Horse a piece I would say.