[Jib136]

Don't get me wrong, I was expecting amazing mpg's being a 600bhp rb30 but didn't realise it would as bad!

I think it's running very rich and I'm probably getting 60kph to quarter of a tank??? Which is ridiculous! And this is driving normally...

What can cause bad fuel consumption?

Thanks

 

[mambastu]

Running rich
Excessive use of the pedal on the right
Hole in fuel tank
Incorrect ignition timing
Long duration cams

Cheers

Stu

 

[Johnny G]

Poor mapping?

 

[Jib136]

Well I've now changed the plugs again and it's made a lot of difference! Seems like the original plugs I put in when I bought it only lasted about 3weeks... Lol.

 

[R32 Combat]

I used to get about 250 miles to a 70l tank with my 600hp RB30

 

[Jib136]

I'm getting about 150km's to about half a tank... :-(

 

[Endlessr32]

I'm getting about the same too

 

[R33 GTR]

I'm lucky if I see 230 km out of a tank...... Milton Keynes and it's damn roundabouts

 

[eye121]

20mpg over 80 miles yesterday, including some hooning. I suppose that's not bad with about 620bhp. Still only 200+ miles per tank.

 

[Endlessr32]

20 mpg is pretty good really!
I wished I could get that
Try not to think about it and just fill up when needed
Which is quite often

 

[microg]

25mpg @75-85mph over 200mile motorway haul 440whp 32gtr with r35 injectors
is this a record and do I win a prize ?

 

[Endlessr32]

Ha ha I think u should win a prize for that amount!
That's impressive!

 

[microg]

mpg

yes it takes great restraint but it was 4 in the morning and I was in cruise mode (half asleep)
at the time.

 

[Endlessr32]

Ha ha that does help!
Good mpg tho mate