CAI+K&N+Sport Exhaust=more fuel usage?

[VLishes]

After installing these items I noticed that my fuel usage is pretty average, on the highway I get around 11l/100k and city driving around 12.5to13, is this normal? I haven't see the average L per 100k go below 10 since I got these upgrades. Last couple of tanks I've taken it easy with no change in average L's per 100k, I've also reset the ECU. any ideas?

 

[Slow VR]

Ive got CAI, K&N, Extractors, 2 1/4in Exhaust, Clean TB, Reco Injectors, New O2 Sensor, new Temp Sender, new EECS lines, new Tank Breather lines. I drive it like a nana (city driving) n im lucky to get 380klms out of a tank. Good luck!!!!

 

[_Mukas_]

im drivin stock as a rock vs acclaim and dont granny drive, but i aint a lead foot, and my fuel econ aint that flash either (i had my car service a week ago). i asked the mech. when i got it serviced and he said if it gets any lower than 350 a tank, theres a prob, until then its just the car using fuel apparently...couldnt put a reason behind it

 

[Jamie_87]

ive got k&n and sports exhaust and 211,000kms. Around city i get around 12-13L(can get upto 16 in traffic) and highway i go down to 7.5-8L/100(been down to 6 when i went away with half tank of fuel), the prob for me around city is because i love fast take offs, i noticed when i drove normally for a day fuel avg went down to 11 for city, also keep in mind that if u take it too easy the car will use more fuel . Maybe ur injectors need a clean or sumfin, i no my problem is my right foot!

 

[VLishes]

Hrmm, I find it strange that I get **** fuel consumption on the highway, from Frankston to Toorak Rd (50k's) it didn't drop below 11l/100k and that was using PULP, now I went back onto ULP and city'ish driving I got 400k's out of a tank which I suppose is good, hrmm I miss my VL.

 

[mattman]

Mines sitting on about 13/100 at the moment..

That's giving it plenty around town (not much actual traffic though, just lights) and up and down the hills freeway.

Expect it will drop a little more once i stop driving like a tool. Aiming for about 600km/tank but that's with the 73L in there.

 

[jack.mc]

I get 15/100 around town, with the mods you mentioned, but i have issues. If everything works and you drive sensibly, then it shouldnt rise much...

 

[VLishes]

I'm starting to think if it was a wise decision to buy this car, it's comfortable but fuel economy is average and it's not really fun to drive, compared to my old VL.

 

[mattman]

What sort of "around town" driving is it getting? Full on traffic or just driving round the streets with a few traffic lights?

It does sound a touch high considering I get much the same in mine.. I've got a bit of freeway mixed in but alot of that is uphill and it pretty much breaks even after a trip each way.

I haven't been able to run it on any flat freeway/highway.. because well... we don't have any, lol.

 

[semi]

Im kinda making an educated guess here, but with your CAI, wont it be making a kind of air ram effect, making it burn a little more fuel?