3 pulls, 3rd gear done at Steeda.ca

Max Power: 171.4 @ 6250 rpm
Max Torque: 163.3 @ 4500 rpm

0* of knock

I dont have it scanned yet but will post it up when i do. Great horsepower curve and an nice flat torque curve.

here is the shitty part...the car runs VERY lean averageing 16.09!! with a minimum of 12.42 (at redline) and a maximum of 17.97 (low-mid rpm)!! (the air:fuel was logged with a tailpipe sniffer...the numbers might actually be better....or worse!)

good ol shitty GM calibrations hold true on both the SS/SC and the 2.4 apparently.

There is definatly much to be gained from a good tune just to even out the air:fuel

Overall im impressed with just an intake an exhaust on this car.

 

Nice numbers with just an intake and an exhaust

Did you happan to get a dyno while you were stock to see how much these mods really helped?

 

Indeed!

 

Yes nice numbers....don't they dyno around 145-150 stock?? <--- If that's right, you gained about 21-26 whp thats crazay

 

unfortunatly no...i basically slapped the exhuast and intake on a month after i got the car.

 

my gf dynoed her 2.4 bone stock, she made something like 148 and 155ish torque on the same dyno.

 

ps. i hate the clutch and shifter on the 2.4;P

 

Did Paul have to help you again

 

nah lol
i drove Brents car on the road and the clutch makes mine feel like a stage 3 race clutch lol
i was surprised though, the car pulls pretty nice, CLIFF if you read this, watch yer back, my money is on Brent!

 

Thats what I'm talking about if I can get that just from intake & exhaust thats F**king awsome

 

Wow friendly dyno for an untuned car.!! But great numbers nonethless. What was the air temp when you tuned?

 

i was there, dunno the air temp but i can tell you it was very cool and very windy;P

 

damn right it was cold today, right around freezing.

 

It's not unusual to see your a/f ratio go upwards of 17 a/f on any car during normal driving operation. Heck, you could sometimes see upwards of 20 a/f when you release off the throttle...won't hurt anything really, your engine isn't put under alot of stress, so fuel isn't really needed to a degree.

 

I thought to 2.4 was rated at like 160+ stock? Anyway, if other 2.4ers are dnyoing @ 140 or so that is some good gain. Congrats.

 

It's about 171 stock crank horsepower. These are wheel horsepower ratings. Typically they are about 12% loss of power in stock form, less with an upgraded drivetrain system.

 

what kind of dyno? mustang or dynojet?

 

Must be a DynoJet for those numbers.

 

Arent dynos supposed to be in dd, so it doesnt have torque multiplication? I thought that was fourth.

 

I just got back from the dyno.Stock SS with K&N and Magnaflow muffler pulled 258whp!
My buddy tuned it with HP tuner.These car are really out of tune.
http://www.fastpartsnetwork.com/Cobalt.jpg
http://www.fastpartsnetwork.com

http://www.srt8tuning.com

 

It's a mustang dyno but those are simulated dynojet #'s... I believe.

 

what intake an exhaust are on your car? i hope my 2.4 puts out those numbers when i dyno it in the spring. and how many miles do you have on it?

 

mods are in sig...

its a mustang dyno...it was like 2 degrees celsius outside...garage bay door closed

I tried to scan just how bad the air:fuel ratio was but it wasnt coming out good enough...

the car was running 26 degrees of timing with 0 knock.

 

definitly can see a 180whp beast with 7k rev limiter and tuning for up to 7k RPM.

 

a good tune clean up the air:fuel, remove any torque managment, and 7k rpm should be good for that much.

a good tune will also even out that torque curve to make it even more flat in the low-mid rpm range.