Quote:
Originally Posted by shampooguy
So has anyone seen an improvement in their mpg with a WAI? I just added dryer vent pipe directed toward my exh. manifold, blocked off the stock vent, and it appears I've gained 5 mpg according to my scan gauge, on the same stretch of highway, same speed, etc. It's a dog when I punch the gas, though. Can anyone confirm similiar results?
1999 Chevy Prizm Lsi
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Yes, I have seen about 2-3 MPG gain from this mod, it is easily reversable, and it also aids by shortening warmup time.
As far as it being a dog when you punch it, warm air does have a lower density therefore, lower horsepower, so it's not unreasonable to see a power drop. Hope that answers your questions.