Ill see If I can find them, and Ill scan them and put them on here... If I cant find them I could always have it dynoed again, but that is honnestly $50 that I dont have to spare, haha. Ill find them, they are around here somewhere. I was so happy when I got those numbers. I was so afraid that I had gotten like a *****y lightning that would get beat by all the other ones. Its like the one lucky thing that has ever happened to me!

 

so have you run your L at all, that will give you a decent analogy - (spelling) on how much HP you are making.

 

Lots have ran into this problem, you need to hook up with a L tuner and have them work up a TRUE CUSTOM program for YOUR L

 

YEAH!!!... good thinking! hahahah

I ran down in Huston a few months ago, it was really really humid, which is a bad thing, and it was about 90 outside....

60 ft --- 2.1185
330 ft --- 5.9389
1/8 et --- 9.0859
1/8 mph --- 78.45
1/4 et --- 14.0864
1/4 mph --- 97.36

I was kind of dissapointed with these numbers, was hoping for it to be low 13's!!... Silly me!

how much power does that sound like

 

Sounds stock ...the common misconception is that humidity is bad. Actually, it's somewhat good. The water molecules in the air actually help to quench the intake charge some, to aide in deterring detonation.

If you do a search on Google, you'll see what I mean.

 

It would be interesting to see exactly how humid air affects how an engine runs... I am a pilot and Humid air is thiner than non humid air, it is a common misconception that humid air is thicker, however it is actually thiner. But I dont know all the other factors that go into play such as detonation and such.... interesting subject though

 

There are three important factors that affect air density; ALTITUDE, TEMPERATURE, and HUMIDITY.

As density altitude increases, the molecules of air decrease which means there will be less air flowing over the camber of the wing. The further effects of high temperature and high humidity are cumulative, resulting in an increasingly high density altitude which reduces all aircraft performance parameters.

So in other words, as you have stated, the air is thinner and that is because there is more moisture molecules in the air. I believe the reason people always state the air is thicker is because in reality it is thicker, feels thicker and sometimes you can see it is thicker all because of the moisture content.

Every notice on a real warm humid day you can just see the moisture in the air and sometimes it feels harder to breath? By all rights, and again like you stated, it is not because the “air” is thicker because there is actually less air due to the moisture content but most people don’t separate the two and just say air is air.

That is not the case but it is a big problem with combustion motors. They need air, or more specific, oxygen molecules to produce hp & tq efficiently and blower motors need it even more. Humid weather does indeed affect motors, all motors, and blower motors more. It is simple, since the air has less oxygen molecules in it, because some have been replaced by moisture, it reduces the efficiency of the hp & tq made by the motor.

Motors, all motors, and specifically blower motors will always make more hp & tq with cool/dry air, Dry air has more oxygen per a given amount then does humid air and that makes it denser…

It’s about air density…

 

The real truth is, that moist air is THINNER!!.... I mean, it is really hard to get past the fact that it is hard to breath, and that you can sometimes see the moisture in the air.... But by all means, Humid air is thinner no matter how you looke at it......

Think of this, really think about it.... if moist air wasn't thinner than dry air, CLOUDS WOULDN'T FLOAT UP TO THIRTY THOUSAND FEET, they would simply fall to the ground.... Im not saying that water is thinner than air... but water vapor is...... Density altitude increases with the more moistur that is in the air.

 

01 XLT Sport

I read your post again, and, you might be 100% right..... but if moist "air" wasn't thinner, then why does the aircraft perform wose.... like not climb as good?? Im convinced that moist air is thinner! hahahah

 

What do you fly?

 

Yes, got my pilots license a few months ago, but have been flying for 8 years

 

Just becuase you get a custom tune dont mean it will be better. The predator tune hangs my injectors open 10ms longer than my "custom tune" from one of the big 3 tuners. Also, custom tune had my a/f 16+ to 1, no info on the predator a/f. my custom tune only made 331 rwhp and 446 rwtq. would only chirp into second with my mods. Predator tune gives me smokey tires and pavement stripes @ wot on the 1-2 shift.

Custom dont mean better sometimes to some trucks. keep this in mind.

chris

 

One of our dynos was WAY WAY OFF!!! I mean, 331 at the wheels, and I got 371.5 at the wheels (STOCK). I figured when I got my truck dynoed that it would be an accurate way to say EXACTLY how much HP you had..... Aparently not. I guess all the ricers go to some really F-ed up dynos that say they have way more hp than they really have!

So I guess the only reall way that you should test cars/trucks is at the track, Because that is the one thing that DOES NOT lie.

 

I have been on 2 different dynos, and 331 was the high number. With a/f 16+ to 1, there isnt going to be much power. not a very big bang going on. Thats why I felt and saw much more once I hit up the predator tune. I with the injectors open 10ms longer, more gas and more boom and more power.

The one place I dynoed at said its a good thing it was so ungoldly lean. there wasnt enough gas to make enough heat to melt pistons, plugs, dentonate, etc. Dunno if that is true, but with a/f like that, I have never heard it detonate and the plugs are ok.

Chris
ps, the track can even lie if the air is hot and humid one day and cool and dry the next. but I agree, time slips are what really matter.