Originally Posted by VinnieGTP
I just got 336 miles out of my 98 SSE and put 17.403 gallons in to top it off. That gives me 19.3MPG. I ran it so low because I wanted a baseline for miles on the tank and MPG. I just bought it a couple weeks ago.
I'm OK with that but I know I can help this big boat over 20.
Next step is to make a CAI from the stock airbox. I'm thinking 7" *&B Powerstack cone like I have on the GTP.
A week later and only 1 change has been made so here are the results.
All I did to the car was gut the airbox....completely. I cut EVERYTHING that was inside of the box out and cut the front hole out to the edges of the sides of the box so its inlet is substantially larger now. It is louder at a cold start like a CAI but that doesn't bother me at all.
I got 360 miles from this tank and topped it off with 16.846 gallons for a total of 21.4MPG.
That is a 2.1MPG improvement for $0
I'll give it another week like this to verify the results. Now that I think about it I should have done a few baseline tanks but I'm anxious.