Wow i cant believe these differences with the correction factors. There a lot of horsepower numbers on this site that make me question how accurate they are when i look at the type of upgrades people have.

 

Magically, all summer long and up to mid-September, Al uses STD, which will report the highest numbers.
https://www.evolutionm.net/forums/sh...d.php?t=158492

Then, in October, when the weather changes in Ct., Al suddenly becomes a fan of uncorrected #s, which read the highest when the weather is colder.
https://www.evolutionm.net/forums/sh...d.php?t=162396

Be careful Clay, it looks like you are just following instead of leading. I wonder if we look back to last winter, if Al was doing the same thing: Changing with the seasons...

 

+1

War, props for taking the time to do a comparison between altitudes, but
How accurate can it be when you are comparing them on 2 different dynos.
Granted, you can't just dyno a car, and move the dyno up 5k feet and dyno it
on the same dyno, but you can't accurately compare your #s between 2 different dynos that are far apart. Also were you spraying your alk?

 

BTW, this isn't something new: Last winter Al did the same thing. He reported # in uncorrected, which show the highest numbers.
https://www.evolutionm.net/forums/sh...d.php?t=123803

Then, sure enough, back in the summer of '04, Al was back to using STD correction factors to show the power of the BR500.
https://www.evolutionm.net/forums/sh...ad.php?t=90762

Warr, it seems you are hell bent on discrediting Dynojets correction factors. Are you sure your sponsors want that? What about this summer when it gets hot? What is Al gonna do?

 

Smoggie, I only care about the truth. I'm not sure why you keep questioning me. I will use uncorrected no matter what time of year. As I mentioned, it was 80* when I dyno'd yesterday as you can see on the first chart. What do you want from me other than the truth along with data from all angles?

Cloud, yes, I was spraying my alky. I don't know what else you can ask for when I use two Dynojets. No, they aren't exactly the same, but there has to be some concessions given, right? We have no other option - this is as close as it gets.

 

Good real world testing IMHO.

What do you think you're going to run in the 1/4 up there Clayton?

 

Maybe your AFRs are leaner because you have less absolute manifold pressure and therefore the alky kit isn't spraying as much alky? Did you adjust up your alky controller settings at all to compensate for the altitude?

 

That is very possible, if not likely. Since I didn't touch the boost, the absolute pressure was probably lower, and therefore my alky wasn't spraying fully. I do have it set to start at 20psi and go full at 26psi. I may not even be seeing 26psi of absolute pressure, so I may not be getting full spray. As I said, I didn't change anything yet. The plan was to get road tuned by Al with the MAP sensor reading absolute pressure and adjusting accordingly.

 

You can't handle the truth!!!

i just couldn't resist. dynojets suck anyway what kind of person would own one of those?

 

"H-e-l-l yeah I called that Code Red"!FWIW, Smoggy delivered the truth. Al and other Tooners have been playin the Dyno Correction game forever.

Also I have another Hypothesis. Maybe SAE correction factor correlates to what your car would put down on the Pruven Dyno.LOL! I bet it would be close.

 

 

That’s a very interesting observation. Now, why would someone do a thing like that? Wouldn’t it be better to stick with one format (uncorrected numbers), and be consistent?

 

It would be better to stick w/ one format, but uncorrected in lower temps produces a much higher number (up to 10%). Uncorrected at 100 degrees would produce much lower numbers. Which is why people should use SAE corrected numbers when comparing dyno numbers from around the country. Of course, altitude seems to cause some issues w/ the correction factors.

 

So someone at sea level is showing (uncorrected) more horsepower at sea level, & someone with colder air is showing higher horsepower than hotter air, & altitude takes away horsepower...

It's still what you are making!! I never realy understood the reason for using corrected. Yes, it would probably make x amount of horsepower at sea level... BUT I"M NOT AT SEA LEVEL!!

SO I've always felt the same way. Tell me what HP I'm making right here right now, & when I have people ask me, I'll tell them.