I find it funny that you will take track numbers as fact when there are variables of weight, traction, and driving ability that will change the numbers dramatically and will in no way give factual proof of how much horsepower he has. Given his track times and speeds, you could only estimate his power in probably a 50hp window.
ok it was a 4 gear pull
Had mine dyno'd at speedys, and tuned. Baseline was alot lower.
4th gear is 1:1, and as stated, this is where a 5spd car should be dyno'd.
Why does the dyno sheet say '87, when you have an '86?
The track is nice, IF one can drive.
I have raced zo6s that run high 13 second quarter mile times. So at 3200 lbs, what would the HP output be?
The dyno takes this variable out.
Both the track and dyno have their place.
Trap speed and weight are what you use to calculate HP. E.T.'s don't have anything to do with it. The track is the best horsepower calculator.
Um, not if they trap 109 MPH, when they should be getting 116-117 MPH.
I have seen ls1's trap high 90-low 100 MPH, out of the T56.
I have seen stock 5.0Ls run mid 80 MPH.
I have seen LT1s run low 90 MPH.
So can you guess how much horsepower they have?
Or can you guess if the driver was skilled?
Your pick
Your numbers are pretty high too though! 350rwhp from an AFR165/FTI/GT-40 combo is not the norm either.
Somewhere around 300-325rwhp would be the norm for an HCI 306 like that. I wonder how they are calibrating their dyno...or how they are correcting the numbers.
Its corrected at std. Most say sae is what people use, which is 4-5% (ive read) less than std. So taken my numbers minus 4-5% is 330/380 or so. Then I have read that people say the superflow dynos read up to 15% higher.
But you will agree that with a COMPETENT driver, that should not be the case.
Running 25th's numbers through a calculator I get 294.75 rwhp for his low trap, and 322.64 rwhp for his high trap (assuming the car weighs 3300 lbs. with driver). That's a bit of a wide range, but I trust that more than any dyno numbers that get posted up.
If you take an average of 5-10 runs, or the most consistent trap speed you typically run, I'm pretty sure that will give you an even better idea of the actual power you are making.
But you will agree that with a COMPETENT driver, that should not be the case.
Go read what I said on the first page.
It would agree with that statement and it would be much more accurate.
Read 25th's HP numbers.
The dyno takes out many more variables.
It is not the end all. I like the track as well, but a dyno removes headwind, tailwind, track prep, shifting RPM, shifting speed, launch, more adverse temp changes, with no corrections or standards, sea level or 5000 ft, et al.
A Superflow will generally read 8-12% lower than a DynoJet. Not higher.
Thats why I thought yours seemed high.
Do you have your graph?
Dyno adds the worst variable of all... the throttle man.
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