Just a suggestion.

Being that us Cobalt owners like to show off our rides, rightfully so, and how much power we are making. Maybe we should have some sections designated for cars that have been Dyno tested. Maybe split it into threads- ex. 225-250, 250-275, 300+. Pictures and Dyno sheets to be included, as well as a list of mods. This way we could have a way to quickly see what members are producing what numbers.

I thought this would be cool. Comments or Suggestions?

 

Sounds interesting...

 

cool

 

plus you could see what people have to be in the range you wanna be in

 

maybe if enough people want this it will happen.

 

Im ready to get my stock cobalt dynoed and contribute it to this thread if someone is ready to take on the challenge.

 

YEP cool

 

sounds good too me...

 

I got my SS S/C Stock Dyno I even uploaded the graph put down 230whp 201 wtq.

-Rich

 

You put down 230 whp stock- they must be underrating these things horribly.

 

Hey R33P3R nobody cares about your post count ...use the edit key

 

i think it's a cool idea

 

Come on guys, dynos are only for tuning. And right now 99% of you guys have no way to tune your car and 99.999% of you guys do not run the times that correspond to your whp numbers. So to me this idea is useless, until you guys can tune on a dyno or until you have the mods to put your power to the ground. In my opinion you are just organizing embarassment.

 

You've got a very valid point. Dynos are not universal. There are different dynamometers, plus getting into 3rd gear vs 4th gear pulls, and SAE correction factors, there are a lot of ways that dynos can "lie" about true power.

The purpose of a dyno for most of the people on here is to get an idea of what their mods are doing, not to get a true and accurate rating of engine power or what's being put down to the ground.

The only way a dyno section would be truly helpful is if people got a stock dyno and then dyno'd after every mod they put on, that way everyone could see what the part added as far as power goes.

 

I forgot about that reason too. Thanks.

How many people on this site will actually do that though? Most(see 99% ) people on here do a stock pull, a few weeks later add exhaust make a pull, a few weeks later add a pully, and so on, by that time though usually the conditions are completely different, thus negating the point of dynoing between mods.

 

Every opinion counts. But I still do not see how this would "organize embarassment."

 

Because if you look at most of the whp numbers and compare them to most of the 1/4mile times they do not correspond. With the power your(not specifically you) cars are making the times should be quite a bit faster.

 

Would this not be due to bad launches, weather etc.

 

You need to see the BIG picture! Dyno's don't lie, only mismatched gear ratios and powerbands make you look like liars

 

It almost all has to do with the launch.

And wrong correction factors.

 

Every dyno printout has the correction factor on it. Should be STD. Only think you can change that is not readily visible is the "smoothing" function. That only makes very small changes.

 

At some dyno shops, you can manually enter the weather conditions to get the correction factor. Several people have already been called out on it, I'll have to find the threads. But there were people claiming 230-240whp stock on the dyno, but then when you looked at the correction factor it was way outside the "standard" range due to largely inaccurate temperature and barometric pressure inputs.

 

Hell on a Mustang dyno, and with fourth gear pulls I made 200 whp and 177 ft lbs torque with just an intake. On a dynojet, those numbers would definately have been higher, as my car has proven itself to be quite quick vs SRT-4's etc on the street.

I think the thread idea would be great, but every must specify all details about weather conditons, altitudes, and what sort of dynos/correction factors are being applied.

 

I know, i was called BS on mine!! Think about it for a minute!!! WHY the hell would i post a high stock number, then help develop parts to add HP and TQ to add to the stock number. If i was going to lie, wouldn't i post i only did 205 but now with my stage3 kit i get 270hp!!! Use your head NOT your ego

Dynojets have thier own weather station modules, you only have to input the elevation. By the way, i tried playing with the elevation for ***** and grins, made no difference in the final number!!! It boils down to the current local conditions and your cars output!

 

I TOTALLY disagree with your "street" comments. They don't call street racing the great equalizer for nothing!!! MANY times i've raced cars on the street and had a close race only to totally destroy them at the track or vice versa! Traction and power curves play a HUGE roll!!

PERFECT example, I raced a GTP on the street, from a 50 mph roll to 125mph, he couldn't get around me! He spun when he nailed it! The kicker, he just went 11.7@114 in that car!
Since he spun and i didn't, i got a headstart and it's hard to overcome that since the cobalt is pretty decent from a roll.

See my point?? Street comparisons SUCK!