setzep

Well you can have great mileage and have plenty of hp to go along with it. Maxthe7man gets 28-30 mpg with his single turbo T2 and I'm guessing he has somewhere near 400rwhp. Amazing what you can do with a haltech and a wide band o2 meter.

S2-13BT

Mine is a single turbo TII (engine). With the smaller turbo (stock) you'll use more fuel after some mods than you would with a larger turbo upgrade. Once the boost comes on your fuel goes alot quicker.

Mine has been tuned a month ago by Rice Racing, and actually got better... It used to be worse than it is now. I must admit that I might be getting slightly better than I first thought. I've been driving the car all week and I'd actually guess that when driving normally, I'd be closer to 300kms per tank in the city.

I would partially blame my old Microtech Digi 1 computer though. A newer Microtech or a Haltech would probably improve it heaps.

Directfreak

iTrader: (2)

Does he have a wideband in the car?

setzep

I'm not sure if he has it in the car all the time but if I had one I would .... well unless I was borowing it to others for a small fee

I don't think he is tuning with the WB when he is getting that 28-30mpg though. The narrow band I would think would be a better tuning aid when shooting for ~ 14.7 AFR to get that ultra high MPG.

peejay

You get better mileage running lean than stoich, as long as you're not running into lean misfire. Not so good for emissions, though.

someone82

I get 17mpg for my 4 speed.. kinda surprising really since I have the street port, but most of my miles are highway miles.

matt

setzep

True, you get better mileage the leaner you run it. Too bad we can't figure out a way to run 50:1. Max said he runs 14.7:1 -15:1 when in closed loop and his target for the o2 is 450mv. If I remember right stoich on most narrow bands is 500mv so I guess he's running it a little on the "lean" side.