hubs97xj
NAXJA Forum User
- Location
- Fort Wayne, IN
BG lists dealers on their website, and some guys on ebay sell cans of it as well.
waking this thread up again.... anyway this article http://www.jpmagazine.com/techartic...iter_engine_myth_busting_true_lies/index.html explains that a newer intake manifold actually will reduce hp due to loss of air velocity
I have dynoed cars at 630 in the morning and then dynoed them at noon and seen a 15hp loss. Air temp is always a factor.
Ok, I probably am looking at the uncorrected numbers, but that doesnt explain the difference in power when nothing changed on the vehicle. Ive seen it happen more then once too, but hey one time it was because some jackass left a bottle of co2 opend in the dyno room after disconecting a halo sprayer. that really threw us for a spin until we walked out there and realized the cars just sucking in the co2.The dyno is supposed to correct for barometric pressure, air temperature, and humidity (usually to SAE standard on most chassis dynos). I think you're looking at raw uncorrected numbers.
Ok, I probably am looking at the uncorrected numbers, but that doesnt explain the difference in power when nothing changed on the vehicle. Ive seen it happen more then once too, but hey one time it was because some jackass left a bottle of co2 opend in the dyno room after disconecting a halo sprayer. that really threw us for a spin until we walked out there and realized the cars just sucking in the co2.
However, here at 7,000' altitude what I want to know is what do I really have to work with. Sea level numbers are sort of silly really...
What everyone gains is going to be different. The conditions are always different. I have dynoed cars at 630 in the morning and then dynoed them at noon and seen a 15hp loss.
The dyno is supposed to correct for barometric pressure, air temperature, and humidity (usually to SAE standard on most chassis dynos). I think you're looking at raw uncorrected numbers.
Ok, I probably am looking at the uncorrected numbers, but that doesnt explain the difference in power when nothing changed on the vehicle.
CHERBEAR, look at what dino said.Nothing has to change on the vehicle to provide different dyno numbers. Temperature, humidity and barometric pressure all have an effect on horsepower and torque.
As you said, you dynoed in the morning (low temp) then again at noon (high temp) and saw a power loss...