E85 Fuel Consumption

[No Crust Racing]

E85 Fuel Consumption

General question around what level of consumption people are seeing when running E85. 

I had a fairly full tank when I went for a cruise on the weekend through the hills, did about 175-200ks or so and had about quarter of a tank left (R34 GT-R with around 350rwkw). 

When I did a track day I had a full tank plus 80L with me and ended up with around half a tank left in the car and all jerries emptied after 5 or so 8 lap sessions of Winton, so 25 or so k's per session?

I can run the car on 98, but of course less power etc, but I'm just curious what others are seeing as I'd like to do some longer cruises and I'm thinking I might only be able to do so on 98. 

There's very little E85 around here too (Regional Victoria) so I keep a 200L barrel in the shed

 

 

[Dose Pipe Sutututu]

you "can" get nearly 14~15L/100km when you lean cruise it and run some additional timing in cruise/vac area.

[No Crust Racing]

That sounds about bang on what i got from a run out of town for an overnight stay, just cruised out at 100km/h and cruised back. 

So realistically 20-25L per hundred is not unusual at all when having some fun? 

[Piggaz]

Don't you have a ethanol content sensor?

[No Crust Racing]

Yes and wideband, as mentioned I can just run on 98/any blend there of. 

Just interested in others e85 consumption numbers. 

[Hadouken]

My 33 got 12l/100 on the freeway. And about 20l/100 at the track.

Norm was 14 odd /100

[No Crust Racing]

Fair enough, dem thirsty imports. 

[V28VX37]

This was the main reason holding me back from going E85, a range of ~200km is frankly ridiculous. I know that flex fuel would address that but I'm too cheap to pay for all the required tuning.

It's crazy days when a Tesla is quicker off the mark and has better range than our cars ... once they address the weight and price, see you later. 5-10 years max.

[No Crust Racing]

I might have to do a 98 tank just to compare and so I know what my max range might be for any overnight cruises etc. 

[r32-25t]

if you think it's bad now imagine how bad it's going to be after you change the cams and have some overlap in it

[No Crust Racing]

Didn't say it was bad, just wanted to know what others are seeing so I know if it's about right. 

I made the choice to run e85 for the advantages and can switch at any time. 

Cams will be no different, so pro's some con's and all good

[GeeDog]

3 hours ago, Hadouken said:

My 33 got 12l/100 on the freeway. And about 20l/100 at the track.

Norm was 14 odd /100

I did 24 laps at Mallala yesterday, plus a couple more getting on and off the track. I used around 60 litres of E85, so almost 100L/100Kms.

[Piggaz]

17 minutes ago, GeeDog said:

I did 24 laps at Mallala yesterday, plus a couple more getting on and off the track. I used around 60 litres of E85, so almost 100L/100Kms.

What sort of setup have you got?

[Dale FZ1]

33 minutes ago, GeeDog said:

I did 24 laps at Mallala yesterday, plus a couple more getting on and off the track. I used around 60 litres of E85, so almost 100L/100Kms.

Mine's an economy car by comparison.  Seems to consistently run about 60l/100km.  Not running ethanol though. I'd expect that to increase by about 30 percent on E85.

 

 

[GeeDog]

2 hours ago, Dale FZ1 said:

Mine's an economy car by comparison.  Seems to consistently run about 60l/100km.  Not running ethanol though. I'd expect that to increase by about 30 percent on E85.

If you consider that 4 of the 24 laps were "out" laps (so 1/2 pace to the start line), and 5 of the other 20 laps were on a wet track, the 15 laps at full noise probably used well over 100L/100Km. 

 

3 hours ago, Piggaz said:

What sort of setup have you got?

R33 GTST, highflow, ID1000s, Nistune, E85 etc

[Kinkstaah]

It's always 30-35% less range than equal driving on 98

If you really want to get sad, get a high stall torque converter, and then take *that* to the track!
When I was running my engine in, I managed to pay United something like $770 of fuel in 5-6 days.

Nowadays I am back on 98 because United's violent price gouging rustles my jimmies.

[admS15]

E85 I get 270-290km per tank (60-65L), general mix of daily driving with some cruising and some squirting. P98 I was getting around 400km per tank give or take a bit depending on heaviness of right foot. On the track with E85, 1l per kilometre isn't far off the mark when going full noise constantly. Agree with Greg about united violent price gouging, went from 119.9 to 139.9 in the space of 2 weeks. Carnts. I have flex but reluctant to poor 98 in. Stock RB25 with highflow, nismo 740cc dinosaurs making 312rwkw btw.

[Kinkstaah]

It rustles my jimmies that adding 10% ethanol brings 91 down from say $1.25 to $1.20

But if you add 85% of it, the price is suddenly $1.39..

Can I buy the ethanol they're putting into the E10? It's clearly cheaper than the 91...

[No Crust Racing]

Well seems my car is about on par with what everyone else is seeing so fair enough. Will just have to run 98 for the longer cruises. 

I'll just have to put a big fuel cell in the boot for some extra capacity lol

[sneakey pete]

United always used to be that price though. Jumps not good but don't get why people can't remember it being that before