I have a 2002 AP1 S2000

Mods
Vortech V3 SC trim
Vortech powercooler
6 PSI
AEM stand alone
OEM cat
Greddy catback
Ap2 Diff
Stock injectors with vortech riser
Mishimoto radiator


I have been reading on the MPG of supercharged S2ks, and it seems people average between 20-26 mpg.

My S2k is getting 15 mpg combined street/highway.

Why would it be getting such garbage MPG?

It seems to not matter between civilized or harsh driving. I did a test and with no harsh boosting it only got 16mpg.

 

If I got that, I would definitely ask my tuner

 

Thats way low dude, I get about 20 and that is with my foot in it at all times.

 

Do you have a wideband installed?

 

pig rich

 

Try keeping the pedal off the floor Lol.

 

What are you towing?

 

Maybe your stock cat is clogged

 

It pulls hard isn't running rich. When I plugged the stock Ecu in it read zero cel which a clogged cat would trigger a cel? Or am I wrong.

Like said above doesn't matter between civil driving and harsh. It gets around the same. Ran fuel injector cleaner with zero improvements. Motor isn't smoking and compression is good.

 

I do not have a wideband, or any aftermarket gauges for that matter.