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

    • Pads for R32 GTS-t, R32 GT-R non V-Spec (Sumitomo), R33 GTS-t and R34 GT-t are all interchangeable. R34 GT uses a 2x piston caliper, hence it didn't fit.
    • Checked with amayama and nope, the full S2 manual set is not available anymore. Unsurprising, but still disappointing as the ? on availability gave a glimmer of hope.
    • I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • The 296mm rotors are the R33 turbo brakes. The 310mm rotors are the R34 turbo brakes. The calipers are nearly the same, but not. They're the same caliper but the R34 caliper has longer legs so that it sits out far enough to go over the rotor. The pads are the same for both. When you say, "I bough tsome EBC"....did you just mean pads? Or rotors? 310mm rotors fit under 17" wheels. There may be some wheels without enough clearance though. I can't fit my fingers between the barrel of my wheel and the "corners" of my R34 calipers, but there is plenty of room behind the spokes. This is on Enkei RPF1. You can fit 324mm rotors inside a 17" wheel, but I'd be willing to bet that it would be close to impossible with the Nissan/Sumitomo caliper (using an adapter, of course), because the Sumitomo caliper is fatter than the Brembo caliper that is supposed to go on the 324mm rotors.
    • Hi. Can someone tell me what brakes(and mainly WHERE) can i buy brakes on R34 GTT? I bought some EBC which SHOULD go on my car(i have GT but it has GTT brakes) but it does not fit, Brakes are "too" small(296mm) Are 310mm be good or? I have 17 inch wheel so no "big boys" but for me driving i just need one that fits and i can get here in EU/Czech.
×
×
  • Create New...