Jump to content
SAU Community

Recommended Posts

RB20DET, Stock turbo 15psi 164rwkw

City: 470km's per ~50litres. That is until the red light first shows.

Open Road: Not sure have never taken it on a full tank.

WOT: Booting it the RB20DET would drop fuel economy to low 400's per tank.

Driving style didn't appear to make much difference to fuel economy.

RB30DET - Stock rb20det turbo 176rwkw 9psi.

City: 450km's per 50litres.

Open Road: Again. Not sure.

WOT: Booting it the RB30DET drops to 380km's per tank.

I'm scared to start swapping out the stock injectors incase fuel economy goes to the sh*t. :D

Mind you Bl4ck32 has 550cc rx7 injectors thats all been tuned up, his rb30det in his r32 tends to get slightly better fuel economy than mine.

Edited by Cubes
Link to comment
https://www.sau.com.au/forums/topic/85093-r32-gts-t/#findComment-1541740
Share on other sites

ive found a trend in my car. it's basically always KMs/10 + 10 = Litres of fuel

so 350kms = 45L filled up

400km = 50L filled up ... and so on

my 33's usage was similar

so far ive only had one tank which was used for pure thrashing and i did about 250km in 55Ls :D

freeway driving is typically a lot better than the formula above.. the other day after filling up, i drove 130kms. then i pulled over and filled it up again, and i only put in 16Ls..

edit: i just realised that the above does not apply to u as i have an rb25det in my 32.. lol sorry.

Link to comment
https://www.sau.com.au/forums/topic/85093-r32-gts-t/#findComment-1557199
Share on other sites

Hiya,

I've got an R32 GTS-t manual and I get roughly 380-400km out of the tank of regular city/suburban driving.

just did a drive up to Sydney and back a few weeks ago before that dreaded fuel increase and estimated with general cruising averaging 115-120km/h I could get around 600km to the tank.

Mind you though the car's running an aftermarket replacement ECU and it doesn't run an airflow metre anymore so I was expecting it to drink more than that... :)

Link to comment
https://www.sau.com.au/forums/topic/85093-r32-gts-t/#findComment-1563157
Share on other sites

  • 2 months later...
ok i should mention this isnt untill the light comes up...

probably a touch above E

Im with you silver gtst..... i like to fill up before the sludge in the bottom of my tank strts clogging up the injectors!!!!!

Link to comment
https://www.sau.com.au/forums/topic/85093-r32-gts-t/#findComment-1757525
Share on other sites

Fuel tanks get a build up of crap over the years. A friend of mine had a vl turbo that used to run really rough whenever the fuel gauge went below 1/4. Thats the worst I've ever seen.

You could fix it by taking the fuel tank out and cleaning it out, but that is just sooooo much effort, much easier to just keep a nice amount of fuel in there. :)

Link to comment
https://www.sau.com.au/forums/topic/85093-r32-gts-t/#findComment-1762131
Share on other sites

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

    • Brooooo Please send ABS control unit schematic Please! R33 gts25t ABS (Its two plug ecu, black and white) wire colors possible? [email protected]
    • Don't even try to run it on the stock ECU if you're going to have the boost controller bring boost above ~10 psi. I've already told you that. If you use the Nistune ECU, you will need to CAREFULLY read the available documentation for Neo tuning, and read some threads on the Nistune forums, to discover the various things you have to do to prevent the ECU from going bananas when the boost is too high. The is a table associated with th boost sensor that must be modified to prevent it from shitting the bed. This is just one of the things that you will need to do to the tune in Nistune, because the Neo turbo ECU will be expecting to see a number of things (such as the TCS) that are not there, and you have to block the DTCs on those. It is totally not surprising to me that you are having the problems that you are, but the solutions to these problems have been known for >15 years. So just get it done.
    • Hi. Sry iam not a mechanic and iam not at the car atm so i dont know 100% but they told they measure those and even try to change those. AFM they have two. Coils are new a they have my old one too. Plugs too. ECU...we have 25 NEO stock and Nistune 25 NEO.   But i dont know if any one those could be the problem and why/if/what can cause this, Only thing they did not check is fuel...but that walbro 255 is new(like 1,5 years)... That fuel pressure gauge idk...but i let them know Any suggestions?   EDIT: how can they know if it is like you say he ECU pull power when it reaches a specific boost level that is too high? Tha car has boost controler
    • Can you clarify what you mean by boost cut, do you mean it misfires both when under load (driving) and when stationary and out of gear? Or does the ECU pull power when it reaches a specific boost level that is too high (boost control issue)? Does it occur at idle with no throttle? When you say "the ECU is OK", what ECU is it and why do you think it is OK? Have you used the NEO ECU, and if so do you have a MAP sensor attached? Same for the AFM, why do you think it is OK? Do you have any way to put a fuel pressure gauge on it (even just a mechanical one between the fuel filter and fuel rail)?
×
×
  • Create New...