yet another WAI experiment

[GasSavers_BEEF]

my results:

+2.7475%

the experiment: 6 tanks of no less than 400 miles each alternating from stock to WAI. I couldn't go completely back to stock. I have two opening in my airbox that I can chose from. close off one and it is WAI, close off the other and it is close to stock. my stock IAT readings were about 5 degrees above ambient. my "simulated stock" readings were 17ish degrees above ambient. keep that in mind.

I do not have a data logger so all of this had to be taken by hand. the weather data came from www.wunderground.com (thanks to theholycow for the web site).

this big blue number means nothing without backup so here that is as well:



and pretty graph



all of this data can be seen in my gas log.

explinations and theories:

the first two tanks (I think) were during winter gas and thus the lower numbers. the entire run was over 2500 miles using over 70 gallons of fuel and took approximately 2 mos and 10 days. the IAT numbers were recorded at the end of each run (runs were between 20 and 30 miles on average).

so why was the net gain not better? part of it has to do with the temperature delta. at only 50 degrees (maybe 55) it isn't as large as most and the fact that my IAT only saw an average high in the mid 140s vs others that constantly run 180s.

is it worth doing? my driving was not different for this experiment and the power difference was only really noticeable on hard takeoffs from stoplights (if you question this, search GUNNING IT FOR FE). the actual cost of the setup was around $10 so the expense was minimal.

am I happy with the results? no and yes at the same time. I wish the percentage was higher but at the same time, it is a consistant increase as evident by my numbers and cheesy graph.

hopefully this isn't too much information at one time. and I am in no way saying that the WAI is a success or a dud as it depends on the vehicle and the drivers application along with other factors. I think it has been a success for my application and hopefully this will encourage others to experiment.

if anyone wants more data, I have each run in a rather lengthy excel spread sheet.

thanks for reading