Jump to content
SAU Community

Shell V-power Racing

Lazy-Bastard
 Share

Recommended Posts

Lazy-Bastard Grand Master

Lazy-Bastard

Posted
Posted

I just filled up with V-Power racing for the first time (normally use BP ultimate).

I don't know if it's a coincidence or what but the car is driving like absolute crap. It started off missing as soon as I made any boost and deteriorated to the point where it is even missing at idle now.

The car was tuned on BP ultimate and has never run on anything else since then. Does anyone think the fuel is to blame?

I spoke to a friend who is fairly cluey with this type of thing and he said his Bosch 040 didn't like the V-Power racing either and mentioned something about ethanol enriched fuels being thicker than those without.

Anyone got any ideas? I advanced the timing a few degrees and that seemed to improve things slightly, but it still wasn't anywhere near behaving normally.

Either way, I am going to dump the fuel and go back to Ultimate and see if that resolves the issue.

Link to comment
https://www.sau.com.au/forums/topic/170793-shell-v-power-racing/
Share on other sites
r33_racer Grand Master

r33_racer

Posted
Posted

possibly because its a higher octane fuel, better then anything else offered on pump. Harder for it to preignite, or even ignite for that matter. Hence why the tuning is normally required. Vice versa if you were to stick a low octane crappier fuel in then what you were tuned on originally, it would preignite and ignite a great deal easier, generally when knock sets in the most.

Beer Baron Grand Master

Beer Baron

Posted
Posted

i've never had a problem. my GTR was tuned on 98. i put in the V power racing. ran fine. maybe even a touch better. the alfa race car, we had it tuned (yes it has carbies and a dizzy!) on 98. we've since run it on the v power racing and elf LMS and it was fine. It's not a major change I can't see how it made your car run poorly unless it was just a bad batch of fuel.

mad082 Grand Master

mad082

Posted
Posted

if it is pre-igniting you have a problem with a cylinder/piston. i think you mean detonation. they are 2 different things. pre-ignition is where there is a hot spot in the bore or piston that is igniting the fuel before the spark. on cars with carbies they will continue to run after you turn the key off untill the hot spot cools. and it melts your spark plugs, and usually ends in a warped head/cracked piston. detonation is where the fuel doesn't burn in a even pattern. instead of burning in a wave it just all ignites at once.

i don't think the tuning has anything to do with it, otherwise normal aussie built cars would run like crap when you put ultimate in there since they are only tuned for 91 octane fuel. i'd say it is a bad batch of fuel. i stopped using shell fuel after i went to a servo one night and an ambulance in front of me started then stalled before it got out of the driveway after filling up and wouldn't start again. it turned out there was water in the fuel. not sure if it was the servo's fault of a bad batch, but after that i stay clear of it just to be on the safe side.

r33_racer Grand Master

r33_racer

Posted
Posted

ok i always thought that both were to do with the fuel mixture burning before it is intended to. ie. before the spark plug ignites the air/fuel mix. Whether it was to do with a hot spot or just the fuel burning unevenly was irrelevant. Thought it was the act of it occuring rather then what caused it. Suppose you learn something new everyday.

Lazy-Bastard Grand Master

Lazy-Bastard

Posted
  • Author
Posted

Thanks for the help, problem solved.

Stupid leaking cooler join.......Haven't driven it yet but it was literally hanging off :P I had the exhaust manifold off the other day replacing a blown gasket and mustn't have tightened one of the clamps enough.

I will stop bagging the V Power racing now :D

J-Boy Mentor

J-Boy

Posted
Posted

What fuel the car was tuned on definitely makes a difference, but i have ran vpower racing previously on my r33 and it ran good. My mate had issues with it in his bmw e46 325 though, he just tried it in his evo8 gsr yesterday and it seems to be running good as 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
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • Dose Pipe Sutututu
      What brakes on R34 GTT(Europe)

      By Dose Pipe Sutututu · Posted

      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.
    • soviet_merlin
      WGNC34 - floor mats

      By soviet_merlin · Posted

      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.
    • joshuaho96
      Tomei gasket

      By joshuaho96 · Posted

      I've heard the Tomei USA head gaskets are decent if you want to o-ring the heads but otherwise not recommended.
    • GTSBoy
      What brakes on R34 GTT(Europe)

      By GTSBoy · Posted

      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.
    • Kapr
      What brakes on R34 GTT(Europe)

      By Kapr · Posted

      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...