Jump to content
SAU Community

Recommended Posts

After my tune, first tank: 303.3km/52L.

Second tank is looking slightly better. Most of my driving is peak hour with moderate stop start traffic.

HKS 2535, Bosch 040, Denso 550cc injectors, Link ECU, turbo back exhaust, pod, cooler. I think its making around 190rwkw on 1.1bar.

Not enough k's for my liking =|

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3205535
Share on other sites

  • Replies 78
  • Created
  • Last Reply

Top Posters In This Topic

Top Posters In This Topic

Posted Images

The RB30DET in the R31 gets a consistant 12.5L/100 around town with a/c on and some fanging, around 11.5L/100 with a/c off.

On freeway it only does 10.0L/100, dissapointing really, I think mainly due to cruising RPM at high freeway speeds at 3000rpm, due to short 3.7:1 diff ratio.

Needs a 6 speed box and rpm dropped down to around 1500rpm, then it should be doing around 7L/100km. (Based on the fact my RB30ET (less efficient) can do 10.0L/100 on freeway with a/c on - has taller diff ratio)

Could go taller diff ratio, but will loose some snapiness of the lower gears.

Also would improve if boost afr mixtures were a little leaner as well.

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3205784
Share on other sites

R34 GTT 1998

i got 15L/100 6.5km per 1 litre...... most city driving...lots of traffic light about 10km of highway..

it too much... i thinking to change O2 sensor.... hope it would help... injector was cleaned 3 time afteri bought this car about 2mth ago....

the previews owner were never f%$kn serviced this car... imported whe 45000 sold to me at 73000km f#$k ill never deal with that sort of guys

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3206233
Share on other sites

i just got 480km outta about 45L of shell v-power.

Mildly modded 33 gts-t with PFC

That was on the freeway though (syd to central vic)

Only got 400 outta nearly a full tank of BP ultimate.....but found out when i filled up at the shell that o2 feed back was switched off :thumbsup: my bad

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3207258
Share on other sites

Hey Guys great excel table i might have to make one myself,

I just got my new personal best due to the great drift weather.

ohh i mean great rainy weather i only just got 280Km from 55L fill YES whoot

hey zennon what mods do you have to get 568km, you must have i light foot and a great tuner

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3209201
Share on other sites

hey zennon what mods do you have to get 568km, you must have i light foot and a great tuner

haha, i must admit i was impressed but didn't really know quite how good it was until now (compared with others)

has the normal little things: fmic, pod, 3" turbo back exhaust, 11psi, etc (for more info)

the guy i bought it from told me it had gtr fuel pump and remapped ecu but who knows...

he also told me it had a heavy duty brass button clutch which was a complete lie

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3210041
Share on other sites

Hey Guys great excel table i might have to make one myself,

I just got my new personal best due to the great drift weather.

ohh i mean great rainy weather i only just got 280Km from 55L fill YES whoot

hey zennon what mods do you have to get 568km, you must have i light foot and a great tuner

I feel less lonely now that someone else has the same economy as me haha

What mods do u have?

I did 318km on 51L for my last fill.

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3210395
Share on other sites

The old RB20DET @ 1bar, stock ecu, stock airbox, fmic & 3" exhaust making 164rwkw used to consistently crack 470km's to 50-52litres.

The RB30DET is a touch heavier on fuel and usually see's 430-450km's to a tank but I do tend to give it a little more stick as it loves off idle acceleration. :domokun:

A little bit of open road 100km/h cruising and fuel economy pushes easily over 500km's to a tank.

Its always been reasonable on fuel. It appears some cars are some aren't. Possibly driving style when you are driving slow/cruising? I've found I see a noticable improvement in economy shifting up around 2000-2500rpm absolute max in every gear even if it means using a little more throttle; get it in to top gear asap. Drop some nulon fuel system cleaner in it every 10,000km's and thats pretty much all I do.

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3210875
Share on other sites

my r33 running 10psi - 221kw (highway) is better than a guy i know who bought nearly stock r33! dunno if there is anything wrong with his car...... just changed my fuel filter too. plus tighned my intercooler piping which is always good because loose pipes ect. will make you car idle higher... more fuel consuption. And dont hit the accelerater too hard, cause when i open her up u can see the fuel gauge needle drop!

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3212669
Share on other sites

I feel less lonely now that someone else has the same economy as me haha

What mods do u have?

I did 318km on 51L for my last fill.

i have a very near stock R32 GTS4 rb20det, its got i nismo air filter in standard box and a Split dump pipe, but in saying that i have 157kw at the wheels and still running stock 8psi

also i did a freak run, i got 407km from my last tank and filled 60L, mostly highway with full car!!

weird if you ask me cause i thrashed it with an extra 250kg extra

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3220880
Share on other sites

normaly 440 odd on my r32 gtst. Normaly Driving....neva under 100kms each quater marking (evn thou it moves un evenly)

had even got 630 kms doin a highway trip...53.8 liters used, my girl friend was driving...my heavier foot would be able to match those numbers

haha - yeah same boat as me

Link to comment
https://www.sau.com.au/forums/topic/174292-fuel-eco/page/2/#findComment-3221277
Share on other sites

  • 3 weeks later...

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now



  • Similar Content

  • Latest Posts

    • 49719 is the cooler loop. Right at the front, LHS of that diagram. Return line from rack (LP side) goes to cooler loop on RHS front of car, then back under engine and returns to bottom of tank. 49717M is feed from tank to pump. HP line out of pump is thick rubber, followed by the hard line that runs down to crossmember and runs in parallel (but opposite flow direction) to the LP return line. Nothing goes anywhere near the firewall or interior of car. The closest they get to that is the connections on the rack.
    • Thanks, plan is to drain all fluid tomorrow and do smoke test to find out the leak.   Appreciate your help and want to understand how the system work. So cooling is achieved by the long loop not any rad? The diagram seems to suggest it connects to somewhere inside the cabin and I thought that is a cooler inside firewall. If you look at the diagram it seems to show it connects to something inside firewall. I tried chasing it but not easy unless I take loads off   i am confident pump is good as fluid goes in and it gets soft( steering) but as soon as I turn engine off , loads of bubble come to surface and overflow. When engine is on , fluid level is below minimum but when off it shoots off and thinking it is sucking air in. I suspect aluminium pipe may have a crack line or whole   smoke test with no fluid should be a good start and if needed will remove the pump   In addition, the one going under the engine bay is high pressure line and one directly connecting from pump to resorvoir is return/ low pressure?   finally I searched and suggestion is to use dexron 2 but that is discontinued so bought dexron 3 as all research suggest it is compatible and shouldn’t cause any issues/ blow seals. I bought two liter of dexron 3 motul atf
    • Don't worry about. Just don't try to drive hard enough to make boost and you'll be fine.
    • Yes. This has already been said. It is a loop of hardline in front of the radiator. Because.... the pump is on the LHS and the steering rack hydraulic connections are where they always are on a RHD steering rack....on the RHS. The high pressure line goes down under the engine, along the crossmember, like it does on all Skylines. Don't just throw expensive braided hoses/other kits at it. Work out what is wrong and fix that.
    • Still got the afm on the intake, clamps are shut tight, only loose hose is the one that goes from the j pipe towards the IACV, since it's next to impossible to find a factory hose and the barbs are different sizes (I'm still using clamps on this hose to try and help it seal on the iacv side) I've ordered parts to make up the hotside of the intercooler pipes, I'll plumb it in and see what happens in a few days I suppose The turbo's internally gated, can I just unscrew the tension rod to let the gate open?
×
×
  • Create New...