it is apple to apple to me, one lost 18hp on the 2nd back to back pull, w 160 stat 2nd back to back pull didn't lose any.....temp and humidity makes no difference, it is all corrected any ways.

 

If "temperatue and humidity makes no difference and it is all corrected any ways." Why do you buy high octane gas (93) vs (87), in your mine it is all the same, then everything is corrected and I don't understand why you are messing with different thermostats if it is "corrected any ways" - Faulty logic on your part - seems like you are "out of this world" literally. You would argue that the sky is perfectly clear when it is raining. Everything is relative to each other and A=B+C and if you chancge one variable, it changes at least one of the other the factors, I don't want to ride on one of your rocket designs - would be "spaced out."

 

looks like you have no clue on the #'s on the dyno. you get a set of # for what you pull and a set of # corrected to a standard of weather condition. that is the one that is compare when someone makes a before and after mods.

 

so, some days you buy 87 and some days you buy 93? do you decide on this base on the weather channel report? do you know what the word "corrected" mean? guess not.

 

You know that there is other such variables such as ram effect and you are not running in a wind tunnel on a dyno, running into a wind and with a wind gives two different corrected results. Why do they run two different directions at the salt flats and within a certain period of time for records? The point I'm trying to make is that conditions can vary more than people realize, running in overcast (cloudy) day vs running in the full sun (check your tire pressure in sun and shade on a parked car, note the ambient temperature, altitude, and humidity are the same but the readings are different), I'm sure you have noticed this with your tire sensors assuming they are calibrated accurately. Im saying it is more complicated than most people make it out to be, sure we can simplify all these readings, that does not mean they are right. All these so called "corrected" #'s can be affected by component temperatures, etc. (eg. grease, expansion, break-in, etc.) Any one change affects something else, always cause and effect; it is like a math problem, change one variable and it changes other factors unless you are "rounding" changes out. If it is as simple as people make it out to be, why do we need computers to send us on the right trajectory to hit the moon, we only do a near miss and gravity pulls the space craft in, but it is not that simple. Your Vette is a technolgy marvel with alot of space age materials and refinements, thats why it runs as good as it does, it just not that simple. According to a C6R administrator, Ferrari personel have asked if they could look at a C6R to study, they are getting tired of being beat at Lemans. C6R race team personnel and engineers are looking at all options, however small, to make a better car. It may look simple but alot of thought and energy has gone into it, thats why we are winning (hope they don't restrict us anymore - theyr'e trying to take our winning edge away. In summary, I wish it was that simple, in the old days we didn't use computers, now all the race teams pull out their laptops and study the numbers, even corrected numbers. I'm sorry that I look alittle further ahead, it is a winning combination and I want to win just like you do.

 

And your point is??????

 

I haven't read this thread in a while. Man, some people have really gone off on tangents! The point of the back to back dyno runs was that with the stock stat, the car pulled timing because it was warm and I lost 18 rwhp. Sorry I didn't pay another $65 and run with just the stat. However, adding the headers made no difference as far as not pulling timing. The whole point was the car did not pull timing on the second dyno pull even though the ambient temps were the same.

So, listen to CBRF and Hittman, they know what they are talking about.

 

you would probably run better with dumping a cup off ice on your intake manifold befor you run and let the car parameters do what they were designed for.

 

For your iinfo, they have ice packs to run with different systems, you can purchase them from tuner type web sites. Why don't they put the the ambient temperature, humidity, altitude, etc. on these dyno reports so you could go into a controlled inviroment and rerun the exact test. I wish these dyno and tuners people were that good that people wouldn't have to go around and ask for good references because this web site is full of requests for good tuners, just like the auto service departments. Just because people "hang out a shingle' or print a letterhead, that doesn't mean they know what they are doing. I realize the cost and access to a contrtolled eviroment would probably be prohibitive, but results would be more comparable. NASA does it, we can too if we want to pay for it. The C6 had over 400 hours of wind tunnel testing and it is paying off, just ask Ferrari about Lemans.

 

I get such a kick out of these threads every time they come up (at least 3 times a day) It's gone WAY past beating a dead horse. It is your car, do what you want, screw the design engineers cuz they don't know ****

 

 

WINNING!

 

TRY LEGEND IN YOUR OWN MIND, NOTHING NEW THERE.

 

here are some very old dyno results. these were done when basically the only mod. was the B&B Bullets, and with the air filter covers cut open.

i have yet to redyno the car, since adding the headers, cats, etc. etc.

this is with the stock therm.

Jon Dega's Springfield Motorsports

temp:= 87.4
a/f: 14-13-12's

8/23/05: DynoJet Dyno
pull 1:max power:=337.0 max torque:=344.6
17 minute cool down
pull 2: max power:=349.5 max torque:=348.6
9 minute cool down
pull 3: max power:=350.9 max torque:=348.8

13.9 gain hp 2.2 gain trq


Some motorshop in MD, forgot the name.
temp. = 67.33 humidity = 50% - 53%
warm rainy day, drove two hours in the rain to get to the dyno.

5/24/05: DynoJet Dyno.
pull 2: max power=326.51 max torque=326.21
a/f: 13:1 - 12.2:1
pull 3: max power= 329.35 max torque=335.58
a/f: 13:1 - 12.2:1

2.84 gain hp 9.37 gain trq