For all the "smack talk" about the dyno being low this past weekend (some claiming 40 HP low)....

As an engineer, sometimes I get "over analytical" looking for answers to questions and spend way too much time looking into issues.

1. This is a DynoJet, known as the most accurate.

2. Talked to the shop owner again today to address this "issue". EVERY month, he runs though the calibration checks to make sure it is correct.

3. When comparing the numerous runs accumulated on my computer (I have the software!), I find the following worth note...

4. Advertised FWHP vs. WHP... For numerous stock cars, even using conservative numbers for drivetrain loss (excepted about 12 - 13% for FWD), even at using a 10% loss, the stock cars showed good numbers, most over what could be expected, for WHP.

5. Correction factors: Damn, we see all kinds of corrections used. uncorrected will usually show the "best" numbers. Many posting results use "STD" correction. The most accurate, but lowest is "SAE".

6. Comparing two cars who dyno'd at our Feb. meet and this past weekend: Both only showed a differential of near 1%. That ain't sheet!

In conclusion:

Too many rely on vendor claims and "ricer math" to estimate their actual output!

Many want "bragging rights" to post on the interwebz. If so, find the most inaccurate and optimistic dyno in your area and BS yourself and everyone else.

Sometimes the truth hurts.

Disclaimer: Do whatever you want and want to believe. Unfortuately that may not correlate to reality.

 

from some1 who didnt dyno, I gotta say the numbers did seem low from the mods done to the car. i mean like what, a 2.8 car on 60's putting down like 220? didnt that happen?

 

People are always optimistic when it comes to there cars.....If the dyno read low then go re-dyno...Im personally waiting on my header/dp to be put on and then im going to National Speed

 

it did seem like that on ss/sc like gestapo said was low 220 with 60's n 2.8 should of been around 250 ish, i mean intake alone on that car can get you 215

 

if anyone is part of east coast cobalts in jacksonvill please pm me id like to go to the meet on friday but id hate to drive 1hr 45m for me to be in a parking lot by my self...

 

im in wilmington NC. an hour south of jacksonville. Contact 1LSJ2NV, hes in jacksonville along with our friend josh.

 

reply test ibxanders

 

You did what in the where?

 

random

 

This X2

 

Hey everyone just wanted to let everyone know that I just looked at my credit card bill and cedar inn and suites charged my card $200.00 more dollar more than they should have, so just a heads up you might want 2 look for that