numbers this, numbers that. everyone is comparing numbers. more like ***** size to some. some of us don't care.


what am i getting at? it's simple.

over the weekend, we had a midwest meet dyno thing. little faith in numbers, good for fine tuning and tweaking.



now.

most of the kc cars put down 240+ in 100 degree 80% humidty temps. this is great.

lets take for instance a certain blue ss/sc

241 hp
215 or something in torque.

my car, 243/228 {if you want numbers, factor in the heat and humidty. you might cry}

90% of the cars started out at numbers below 230.

this goes back to fine tuning and seeing what the car likes. you can't do this with a butt dyno.

now. said blue car is a 2.85 intake, and my tune on it. runs good.
now. the 2 hp difference will not rear it's ugly head from a roll.

from a 60 punch, i put 3+ cars on this said car that put down 2 hp less than me. torque means something to a point, but not at 100+ mph. this is where hp comes into play.

BY THE NUMBERS. i should not have pulled 3 cars on him. what does this mean to you? some of you put way to much faith into the all mighty dyno numbers. if someone can't make the numbers, you cry, bitch and moan. could i produce retarded numbers? sure. but why, to please the masses? no.


so think about that for a second.

 

Numbers mean something to me if it's an ET, MPH and 60'

Edit: Dyno's can lie... race tracks don't!

 

he is not as good at shifting

 

me gusta torque. how did you make more torque? is it just your car or the way you tuned it?

 

tuned differently and meth

 

Power means crap all if you can't drive the damn car to start with...

From what I hear, Area47 has spent alot of time getting his car just right.... obviously he knows how to drive it properly.

 

My old SS put down only 370HP but ran 11.75. Guy I know puts down 80HP more than me but I'm still faster. The dyno is only a tuning device.

 

true that

 

A dyno is good at measuring relative performance. They all give different readings... so you could go to several dynos and average the results I suppose.

After all... if anything is within 20hp it all comes down to weight, gearing, and driver skill anyways.

 

yeha drivers are the biggest part

 

I agree

 

I would like to thank Area47 for so eloquently expressing what I have been trying to
explain to people for the last 30 years.

 

2.8 pulley vs his 2.85

every car has to be tuned different, i don't care if someone bought two cars right inline off the assembly line itself. they will be different. further proof. i did a tune on a stage 2 car, with a ported manifold and cat back. hacked air box. putdown 241-242. somewhere around there i think. about the same torque as the 2.85 car.

in short, people are so hung up on dyno numbers it's unreal. what i use the dyno for is to get a baseline, and see what i can squeeze out of it. with in the relm of being safe. some people here are going ***** out, and trying to get the highest number possible, for bragging rights.

i for one, don't care. driver is more important that numbers.

 

Absolutly, but just the same ppl saying that track numbers are the same holy grail, Its not.

Not endrocing illegal things, but just the same driver that cant lauch at the strip, can somtimes find the apex of a corner a lot better. SO equally as useful as both numbers are they are as equally useless.

 

everything is relative.

People say dynos lie, but racetracks dont?

come race at 5000ft DA on a poor air quality day and see what you think about that statement.


the ONLY time dyno numbers mean anything is relative to ITSELF

and track times can differ more than a full second just depending on conditions.

*shrug* they are all just numbers

 

all i have to say is who say the video of the blue redline that "made" 500whp? the dyno can be fooled a couple different ways. it means nothing, unless you compare 2 cars from a dyno event that took place on the same day.

 

another question... what rpm does you're torque peak at area47?

 

229 ft lbs at 4500 rpms.

 

People don't say it... I did...


And sure it's all relative... but a dyno number means crap all... it's just a number...
As Area 47 said, they both dyno'd on the same dyno, yet he still kicked the crap out of the other guy.
The later raced on the same road (or track.. whatever)... no different variables involved... they were always relative to each other.

Instrumentation lies more than tracks do...
For example.... post up a track time with altitude, temp and humidity... done
Post up a dyno time... to get around the variables involved in dyno testing you need the above, plus dyno type, roll interia, load cell calibration, calcuation errors, not to mention the fact that a car can easily be influenced on a dyno by the air quality in the shop (gas levels and air pressure levels).

Therefore.... dyno's lie!

 

ive been trying to teach people about dynos on here for a while now... its no hope

here, i made this thread a while back

https://www.cobaltss.net/forums/show...highlight=dyno

 

stu, it's ok. i have known the usefulness of a dyno for a while. on the other hand, i also know the fun side of it as well.

hence a 600 whp pathfinder, that ran 15.7 at the track. yea, we got bored and changed the calculation numbers of the rollers and vehicle weight.


the dyno is only as good as the person putting in the info, and hitting the green button.

 

and even then it still isnt half as accurate as trap speed

 

trap speed can be played off by wheel spin, or just flat out dead hooking. no two passes are going to be identical

 

A theme unfortunately shared accross the net . Great thread area47

Wideband to base tune , dyno to fine tune WOT . #'s dont mean squat to me , my stock pulley car has been completely shaming SS's/Redlines with a mod list insanely larger than mine .

 

I agree with you on dynos.
but if you think all tracks are equal then your deluding yourself.

You can "calculate" altitude/temp/humidity effects on your time....somewhat...

but what about track temp...tire temp....tire pressure....waterbox conditions....track timing equipment accuracy....startline track conditions....60ft traction....track rolling resistance...wind speed....wind direction....

there are just to many factors involved....exactly like a dyno....to have true accuracy.

The only way to have accuracy, is if all the variables are generally constant.

and the only way to do that is to compare on the SAME track...at the SAME time
similarly, the same dyno...on the same day....



Like i said relative.