For the past 3 weeks, I've been averaging 17 mpg for sure. My OBC has 26 mpg even after I reset it. I do reset the trip every time I get gas. The OBC is totally off due to the performance upgrades.

On past threads, I've seen someone get 11 mpg with this kit, but something is wrong there and I can't go by that. Am I doing okay at 17 or is it still kind of low?

AA tunes pretty rich to be safe :)

Your OBC is going to be off if you are running different injectors.

Go by checking milage and gallons.

Also like Jordan said AA tunes safe because its a mass produced kit.

Your OBC is going to be off if you are running different injectors.

Go by checking milage and gallons.

Also like Jordan said AA tunes safe because its a mass produced kit.


That's how I keep getting 17 mph... by checking mileage & gallons. But is that considered okay mileage?

That's how I keep getting 17 mph... by checking mileage & gallons. But is that considered okay mileage?


Yup...I get 18 / / for over a year now

For the past 3 weeks, I've been averaging 17 mpg for sure. My OBC has 26 mpg even after I reset it. I do reset the trip every time I get gas. The OBC is totally off due to the performance upgrades.

On past threads, I've seen someone get 11 mpg with this kit, but something is wrong there and I can't go by that. Am I doing okay at 17 or is it still kind of low?

17, I assume city driving? I get 23 mpg on the highway. But then again, my C30-94 is intercooled.

I set the OBC to read 10 mpg more than the actual. Thus, my OBC says "33 mpg". It doesn't have enough settings to read the actual at 23 mpg. Do a search on how to change the OBC settings.

That's how I keep getting 17 mph... by checking mileage & gallons. But is that considered okay mileage?


If you're topping out at 17 MPH with a C38 kit, you may have some problems!

:stickoutt

you should get less at first then it should do better. once you lay off the happy pedal it will get a little better. i used to get about 300-320 miles to the tank mixed driving. then when i first did the charger i would get 250-260 with mixed driving and now i get 280-290 with mixed driving. it's all in the right foot. when on the highway use your cruise control it really helps a lot.

you should get less at first then it should do better. once you lay off the happy pedal it will get a little better. i used to get about 300-320 miles to the tank mixed driving. then when i first did the charger i would get 250-260 with mixed driving and now i get 280-290 with mixed driving. it's all in the right foot. when on the highway use your cruise control it really helps a lot.

That's still great though.. I get ~260-280 on a stock '95 M3 and I don't dog the car all the time, ~19 mpg in Texas weather.

That's still great though.. I get ~260-280 on a stock '95 M3 and I don't dog the car all the time, ~19 mpg in Texas weather.With Texas terrain, I would expect a better for the s50. On a flat highway w/o AC and driving 70mph, my stock m50 would get 30+mpg. I've not really tracked MPG with the c30 yet.

The 17 mpg I get is from mixed (city/highway). The days I do decide to drive it to work, I warm up the car, go inside the house and sometimes forget about it. I then come out 10 minutes later. I guess I waste gas there too. I do the WOT thing a few times throughout the day... I didn't pay to get boost for nothing.

BTW - is this 3.2 OBD1 or OBD2?
Your sig also has a 3.38 diff listed. With that diff, 17 mpg sounds plausible. If someone knows the mpg penalty/bonus on different diff ratios, I would be interested in seeing it.

I get anywhere from 26 on pure highway cruise down to around 10-12 if I am romping the hell out of it in town. It's how you drive it that matters.

BTW - is this 3.2 OBD1 or OBD2?
Your sig also has a 3.38 diff listed. With that diff, 17 mpg sounds plausible. If someone knows the mpg penalty/bonus on different diff ratios, I would be interested in seeing it.

It's OBD2. I guess the diffs could also be another reason. Another gas-guzzling mod besides the bigger injectors, but I love it. :)

BTW, I just filled up and did the calculation on my daily driver (95 Accord). I did 30.7 mpg, probably because I never pass 3k rpm. What's the point? It's slow but saves me money... good on gas using regular.