Jump to content
SAU Community

V35 Fuel Economy

chopra
 Share

Recommended Posts

grae35 Collaborator

grae35

Posted
Posted

Sounds pretty normal to me. I do much the same balance of driving and get similar figures.

Won't hurt to check your two rear plugs as these seem to be the most affected by km's. Also see if you have any oil in the plug tubes around the insulators.

They have a habit of leaking around the rocker cover gasket.

Check your air cleaner element too. Easy to see with a torch through the power duct at front above radiator with bonnet popped.

rondofj Veteran

rondofj

Posted
Posted (edited)

What ur talking about, my R34 is giving me 280kms on 55litres which comes to roughly 19.6 litres/100kms which is driving me nuts! Is this the most horrible fuel economy on SAU?? This was the last fill-up. Before that it came to about 16L/100kms, these were mostly highway kms.

Stock turbo, short distance stop-start driving with the occassional few second squirt to 5-7k rpm. And this is even after my tune more than a year ago; before the tune, the economy was more or less the same, I thought the tune would fix it but it didnt, but power and driveablility is a LOT better though.

Edited by rondofj
sonicii Veteran

sonicii

Posted
Posted

I get around 11.5L/100km in my 6MT, all city driving (not peak hour), and the occasional heavy right foot. Which is about the same as the OP is getting with a lot of highway driving.. so I would say it sounds a bit high..

I haven't taken it on a highway run yet.

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

I normally get around 13l/100km but that includes a lot of sitting around idling with the a/c on for my work. But when I did a decent highway trip from Adelaide to Shepparton last year for the SAU Nationals I got 8.8L/100km!!! And I have all sorts of mods and am making 183rwkw.

rayh1 Explorer

rayh1

Posted
Posted

2001 V35 300Gt

I get between 11.5.and 13 kms per litre on the highways

One thing I have found is that putting it into 5th gear using tiptronic gives better economy on the highway

Now i drive highways mostly in that gear not using the D setting on the auto, only going into D when overtaking

interfooler Rising Star

interfooler

Posted
Posted

I normally get around 13l/100km but that includes a lot of sitting around idling with the a/c on for my work. But when I did a decent highway trip from Adelaide to Shepparton last year for the SAU Nationals I got 8.8L/100km!!! And I have all sorts of mods and am making 183rwkw.

Roughly the same as what I'm getting. 12l/100km city driving, 8.5l/100km freeway. Pretty damn good for a performance car I'd say.

I was getting 8.6km/l before Z tube 9.4km/l after, 2003 A/T . Dont know why Nissan use km/l instead of L/100km :unsure:

Cuz it's an import and it uses the Japanese format. AUDM Nissan's all use L/100km

OP, I think your fuel consumption is slightly high...

chopra Apprentice

chopra

Posted
  • Author
Posted

Thx for the replies guys,

sounds like my fuel economy on the freeway is preety high,

so looks like i have to check my spark plugs and might have to get a tune for a better economy.

Anyone know a good place in adelaide to get the tune done?

and any other suggestions to improve this economy

Nightcrawler Grand Master

Nightcrawler

Posted
Posted

The other big driver of economy is your O2 sensors - when I changed mine in my old 230rwkw R34 it made a huge difference. But sadly the V35 has 4 of the buggers, and they are not cheap.

sonicii Veteran

sonicii

Posted
Posted

I would think the odometer method would be more accurate, provided you use most of the tank between fills. If you are only using 1/4 of a tank then refilling, then the different 'full cut out' points on each bowser can throw out the figure. Maybe check your odometer with a GPS or something (one that can do distance calculations).

rayh1 Explorer

rayh1

Posted
Posted

Hmmm. D in auto uses 5th above 50kmph all the time unless accelerating.

I thought so too, however try going from D to tiptronic at any time on open road, more often than not it translates across into 4th gear

and there is usually a corresponding drop in revs too from D into 5th. Simple fact is that it gives me on average about 2kms/per litre improvement

rayh1 Explorer

rayh1

Posted
Posted

i have 2 different answers to this topic

250gt with basic mods and 285/25/20 rear tyres

13.5L per 100km (calculated from odometer vs refill amount).

the tv says i do 11.9L per 100km.

Dont know which reading is correct.

Have you had your speedo recalibrated, the larger tyres may have thrown your speedo reading out

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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • CRSKmD
      R32 Sedan - Grip and Drift (have my cake and eat it too build)

      By CRSKmD · Posted

      That's a good point. The rears of the covers themselves have no baffling at all though. Higher up more chance of air for venting the crank case. Lower on the side more likely to be submerged. I might be able to fit them on the sides but with both the sump drain fittings being on the drivers side the passenger one will need to make a U Turn and be nearer the turbo. But it will look neat being not up on top.
    • GTSBoy
      R32 Sedan - Grip and Drift (have my cake and eat it too build)

      By GTSBoy · Posted

      It won't likely matter where along the cam covers you put the big fittings. I would suggest putting them on the sides if you can, simply because it will reduce the flow up through the baffles and thus reduce the amount of oil that gets put into the foam. It might not matter, but it seems like something to consider as a worthwhile thing to avoid.
    • Kinkstaah
      Coc or nox of nissan skyline

      By Kinkstaah · Posted

      Well, I have my IM240 results with a cammed LS1... My Nox was 0.11 and my CO g/km was 0.2. Euro4 is 0.08 and 0.1 respectively. I'm gonna say for a stock RB this is actually plausible, BUT in Australia they were complied pre-Euro2, so the limits were: Which as you can see, is way higher. I'd say a stock RB with a new OEM Cat could? actually pass Euro4 for NOX but you'd probably have to do a hell of a lot of testing to prove it, and getting a car emissions tested and carrying a certificate of emissions when/if you get pulled over may be cost prohibitive if it's even allowable to get your car tested and re-classified. You'd have to find out what the UK Govt is using as reference material. It may be non-negotiable.
    • CRSKmD
      R32 Sedan - Grip and Drift (have my cake and eat it too build)

      By CRSKmD · Posted

      I made a little more progress last night and added some E85 safe fuel tank baffle foam in behind the stock cam cover baffle plate.  It still feels really wrong shoving foam inside the engine but apparently its fine based on it pretty much being the MINES/Hi-Octane RB26 cam baffle kit and the few posts here I have found of people doing it and the lack of posts saying the foam broke down and ruined the motor... Still plan to check it frequently though lol The last step for this round of oil control modifications I plan to make is to add some -12AN fittings to the cam covers and connect them to some (already existing luckily) -12AN fittings on the sump. Basically a sudo head drain/sump breather/pressure equaliser without having to remove the motor and do the one on the rear of the head. My plan is to add them to either the tops or the sides of the cam covers at the back. unless there is a compelling reason to have them at the front on the sides which i have seen a few times though they were all on RB26 cam covers from memory so that may be due to the stock breathers being on the back and the integral baffle being different ?    
    • CRSKmD
      R32 Sedan - Grip and Drift (have my cake and eat it too build)

      By CRSKmD · Posted

      the ergonomics are real
×
×
  • Create New...