Wow those numbers for stage 3 alone are terrible! Something seems wrong, because I've watched numerous Stage 2 Cobalts dyno a lot higher then that on a Mustang dyno.

 

It's a dynapack chassis dynometer.
http://haddadmotorsports.com/dyno1.htm

Did you guys see the video?

 

Area47 just out of curiousity what seems scary to you about that AFR? It seems pretty safe to me, but I guess the only way to know for sure would be an EGT gauge.

RoelSS have you pulled a plug to see what it looks like after spraying a few times?

 

12.4 is pushing it with one power adder, just seems a little lean on juice.

 

No I haven't. I've gone through 3 bottles already on the same plugs!! I'll check later on

What is ideal for spray? We did try one run on the dyno, with the bottle off, but nitrous mode 'on'

The AFR was 10 flat! horsepower dropped nasty to 174!!

 

i would try keeping it around 11.5~11.8

 

Keep in mind that this a DYNAPACK DYNAMOMETER so there is no rollers like a traditional dyno, the axles actually attach to the DYNAPACK DYNAMOMETER, these type of Dynos are supposed to be the most accurate. Maybe thats why it reads lower than most other members dyno #'s. Take it to the track and run a few passes and then fill us in

 

That fantasic!!! I was there a few months ago and made 236 whp @ 12 psi!
Its nice to see someone else on that dyno again!

 

Well said. I'm going to change my clutch soon, it's got almost 30k miles (Yes it's the factory clutch) and I know that it will slip with the drag radials I hve sitting at home. Mybe I'll hit Fontana in April. I sure hope I see some 12's on the board!

Yeah, Mike was telling me about you. I remember you posted, but I read it after you had gone. It turns out I actually went to High School with one of the techs there, Cysco. Class of 98! Damn, I feel old now

If I add a shorty header and a catless downpipe, do you guys think it will hit 290HP?

 

Dynojet numbers of the currency of the internet board.

 

Since Stage 3 can't be tuned would manually adjusting the psi on a meth kit to get the appropriate afr be a good solution to get it a bit safer?

 

or run a slightly larger pulley

 

nope, but changing the amount of air flow works

 

Thats cause it didn't. On average, nitrous adds 75%-100% MORE torque than hp. Hence the 300 ft-lbs.

Also, it would seem MUCH safer if you switched to a wet kit, rather than dry. With that lean of an AFR your asking for a burned piston.

 

217 hp only at stage 2 wtf

 

Well, to be fair, the stage 2 run was the last run. The car was already at 210 degrees. I wanted to see the most out of the stage 3 run.

 

Has anyone blown their motor on the 50 shot with stage 3 setup? I haven't found any but I was wondering if I missed one.

 

No thanks, I'd never go wet through an intake pipe, especially pre-blower. I'd rather get a slighlty larger pulley, put the paper filter back on, or switch to a 40-45 shot. Besides, it's the injectors that dump more fuel for when the nitrous activates. I've already gone through 3 10lbs bottles of nitrous and the engine with 30k still runs fine. Other people have blown their engines with less power. Well, let's see what happens.

Not that I know of. Anyone else?

 

Someone a while back was talking about their buddy that sprayed with S3 racing a Vette and blew the engine...but that was right after S3 came out...

 

I thought that was pretty damn good!

 

ALOT of balt owner's blow there motor cause they dont monitar IAT's.. both 1 and 2.. i had blown piston ring land's in #4 and a blown cat... the guy who bought my RL found out and get everything replaced under warrenty.. it was a stage 2 IRL with BASIC bolt on's.. and after the CAT went the ringland's went to.. boosting 19 PSI on a stage 2 tune isnt possible according to GM.. but i had cell phone vid's of the car doing it at 135+ mph.. after i sold it of course they found the issue.. my car was in the shop for 34day's and no real answer as to why it coudnt go about 5.5k.. and that's a saturn engineer that tore **** down..

 

What are the levels as far as cool/normal/should prolly watch it/you're about fucked/you are fucked IAT wise?

Thanks guys for answering the questions. I'd like to run S3 pretty soon but want to make sure I have all the info I need first.

Also I plan on not lowering my pulley past the stage 2 level just because most of what I've read on here just doesn't seem like it would be beneficial. And I/E + 50 shot would get me where I want without having to keep pushing the engine all the time.

 

Update:

Well I have NOT blown anything and the motor is running strong. Currently at about 67k miles and went through plenty of bottles.

No burned Pistons

 

Update for Area:
37k miles later and everything is in tact!!

 

Nice man!

You need to re-dyno now that your car is working 100%. Wasn't your intercooler pump shot at the time of these tests? Keep me posted on your results!!