Jump to content
SAU Community

Recommended Posts

Hey Guys, I'm sure it's asked all the time but i'll ask again..

I have an S1 C34 RS4 Auto Stagea. Car was completely stock 170xxx K's, Only thing i added was a Pod filter.

I've replaced the spark plugs due to missfire and checked all piping etc to ensure not leaks.

I've been running it on 95 but i can only seem to get 260KM out of a full tank.. Usually a mixture or shorter trips and highway drive.

I'm not too hard on it, usually had OD on on highways etc, give it the odd squirt from the lights every now and then..

Can anyone suggest anything i should check or change to try and increase this? I plan to refit factory airbox and run on 98..



Also ever since i got the car it virtually always seems to be on boost.. If sitting on 50k or 90k even with OD on, slightest feather of throttle and its on boost straight away.. Or holding steady at 100k with OD its sitting on boost... Any ideas? I'm not sure what else to check..

Any advice would be great! Cheers

Link to comment
https://www.sau.com.au/forums/topic/460742-rb25det-consumption/
Share on other sites

Yeah correct plugs with 0.8 gap. I've just cleaned out the o2 for now and ill refit tomorrow to see if that helps

I believe it may have a boost leak, Sometimes it never comes on boost at all even with pedal completely to the floor.. It was sitting for 18 months before i had it with little to no maintenance so i'm not sure exactly what to chase

My bro's Stag always seems to be on boost too, one of the very first things I've noticed once we installed a boost gauge. Need to fully back off the throttle for boost to drop

O2 sensor did help but its still thirsty, probably less than 400km per tank. Weight and small capacity engine don't help I spose

You can see if the o2 is working with CONSULT, but if you cant get your hands on one of those just assume its dead, replace it, and reset the ECU so the long term fuel trims are re-established. Change one thing at a time and do the consumption calc over 3 tanks so its a bit more accurate (ie sum the liters and kms from three tanks together then do the calc).

Once you've done three tanks with the new o2, try 98 and recalculate over the next 3 tanks.

Dont forget to check the tyre pressure - 2psi over what the placard says is an ok start.

Dont run too thick an oil. 5w-40 or similar should work well.

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

    • Yeah i found that alot of parts can be wrong or "very" hard to get the real right one. I already bought some brakes years ago on me "old" GT calipers and they were wrong too 😄  I told them too. Even send them pictures...but they said "EBC catalogue has them on my car... So i dont know what their answer will be. I call monday them and let them know that they are really not on my car. If they were they would be already on a car...
    • Welcome to Skyline ownership. Yes, it is entirely possible parts websites get things wrong. There's a whole world of inaccuracies out there when it comes to R34 stuff (and probably 33 and 32). Lots of things that are 'just bolt on, entirely interchangable' aren't. Even between S1 and S2 R34's. Yes they have a GTT item supposedly being 296mm. This is incorrect. I would call whoever you got them from and return them and let them know the GTT actually uses 310mm rotors. Depending on where you got them from your experience and success will obviously vary.
    • Hi...a bit a "development" on the brakes. I spoke to the guys where i get brakes from...and they are saying that 296mm EBC are for R34 GT-T. I then went to their site: https://www.ebcbrakes.com/vehicle/uk-row/NISSAN/Skyline (R34)/ and search for my car(R34 GT 1998 - it has GTT brakes) and it show me this USR1229 number and they are rly 296mm rotors... So now iam rly confused... The rotors i have now on the car are 310mm asi shown... So where is the problem? Does the whole EBC got it wrong or my calipers are just...idk know what?  
    • Oh What the hell, I used to get a "are you sure you want to reply, this thread is XX months old" message. Maybe a software update remove that. My bad.
    • This is a recipe for disaster* Note: Disaster is relative. The thing that often gets lost in threads like this is what is considered acceptable poke and compromise between what one person considers 'good' looks and what someone else does. The quoted specs would sit absurdly outside the guards with the spacers mentioned and need  REALLY thin tyres and a LOT of camber AND rolling the guards to fit. Some people love this. Some people consider this a ruined car. One thing is for certain though, rolling the guards is pretty much mandatory for any 'good' fitment (of either variety). It is often the difference between any fitment remotely close to the guards. "Not to mention the rears were like a mm from hitting the coilovers." I have a question though - This spec is VERY close to what I was planning to buy relative to the inboard suspension - I have an offset measuring tool on the way to confirm it. When you say "like a mm" do you mean literally 1mm? Or 2mm? Cause that's enough clearance for me in the rear :p I actually found the more limiting factor ISNT the coilover but the actual suspension arms. Did you take a look at how close those were?
×
×
  • Create New...