Jump to content
SAU Community

Recommended Posts

My car is a 1.5, engine has bits from S1 and S2 but more S2..

No problems so far and i think fuel economy has remained the same.

Didn't want to hear that last bit T^T

Filled up again, 10L per 100km but was $1.71 today.

Well considering my latest fuel economy was 13.99L/100kms and that was $1.69 when i filled it up, in saying so there was a mountain run involved in that tank of fuel. pulled 356kms out of 49.71L that was on V-Powah

Well considering my latest fuel economy was 13.99L/100kms and that was $1.69 when i filled it up, in saying so there was a mountain run involved in that tank of fuel. pulled 356kms out of 49.71L that was on V-Powah

I'll drive this tank really low and see my fuel economy on P100 but I'll fill up with v power and see if my economy gets worse or stays the same.

At the moment I'm not sure if it's the fuel or the brand new CAS that I installed 2 weeks before I started using this different fuel.

I'll drive this tank really low and see my fuel economy on P100 but I'll fill up with v power and see if my economy gets worse or stays the same.

At the moment I'm not sure if it's the fuel or the brand new CAS that I installed 2 weeks before I started using this different fuel.

True, I'm half wondering if my new high flow cat is causeing the jump in fuel useage.

Btw this P100 fuel has up to 10% Ethanol added not 5%.

I'm keen to install my PowerFC again, will be a good way to monitor knock BUT saying that I haven't felt the standard ECU reduce power entering the knock maps....

Just do it Zeke. The poor old Ark is on deaths door but even she runs well on it.

P100 = No engine light, better economy, not running rough

Shell or BP= carries on like the ark

  • 4 weeks later...

Car had P100 for happy laps and is going great :D

Did 13L per 100 km from home to happy laps and back.

If I had the money I would get the car tuned on this fuel with the PFC I have sitting around.

13L:100kms :( better then mine. But you've heard what's going on my end with fuel. I'm getting just under 14L:100kms

I've run P100 in my R34 for about 6 months and had it tuned on it, power went up from 200rwkw to 217.8, not a bad increase seeing as nothing else changed. I generally get between 500-550kms on a tank but that's almost all highway driving. Definitely gives the car more power down low I've noticed too, never going back to 98

Should be perfectly fine, but a good precaution is to change the fuel filter after the first or 2nd tank. This is because ethanol can dissolve some of the gunk built up in the system.

The extra fuel usage would only be 2-3% on closed loop, and essentially nothing on open loop unless you re-tune it slightly. The ethanol content should help in hot weather as a bit of ethanol both boosts octane and broadens the optimum optimum timing point.

I wonder if it is only 100 octane, or 101-102 ?

Should be perfectly fine, but a good precaution is to change the fuel filter after the first or 2nd tank. This is because ethanol can dissolve some of the gunk built up in the system.

The extra fuel usage would only be 2-3% on closed loop, and essentially nothing on open loop unless you re-tune it slightly. The ethanol content should help in hot weather as a bit of ethanol both boosts octane and broadens the optimum optimum timing point.

I wonder if it is only 100 octane, or 101-102 ?

There's reason to believe that it can fluctuate because of how the ethanol reacts. Could be higher, could be lower. From memory, I think that it's a minimum of 100 octane.

Also, you mum. Hehehehe (reference to your signature)

Never tested it, would be interesting to see. The performance difference is considerable, I went back to 98 this week and the car feels like crap.

This would equate to the ethanol burning more efficiently and assisting with the combustion of the petrol. Whilst it's small in what it does, with a car like yours, the change in feel would be remarkable however the actual numbers wouldn't change to much. Also, ethanol would assist with better, cleaner det - important especially on yours.

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

    • I wasn’t able to replicate the sound anymore. It was a one time sound so maybe it was just coincidence but it was like small pebbles being dropped in a coke can.   should I try cleaning the MAF? It could be it’s functioning but dirty? I don’t know.
    • Update 4: Hi all. The car drives again! Haven't driven for long, only to store it in the garage again, but the test drive was successful. The coolant and oil leaks seem to be fixed for now. Temps on the engine were also very good, while moving I never even saw 80C water during the approx. 30 minute drive. Ate up all the coolant in the reservoir though so will have to fill that even more when I go to the car next time. One thing that pisses me off is that the RPM gauge is still f**ked, I even resoldered the board twice and used copper paste on the silly screws that are used as connections. Next time I take it out I'll take apart the board and fit new components, I'll see if I can get a replacement IC for it.  I have an appointment set for 22nd of September for the engine tune to 370hp. Alignment also still needs to be done. My hope is that I can get all the legal stuff over with by the end of this season. Anyone of you have advice regarding intercoolers? Currently there is an APEXI core fitted, one of those weird hybrid ones, 600x270x76. I don't think it's bad but it's not new and now I still have the chance to change it now to legally include it in the paperwork. Only issue is that the only options that would arrive in time are a HKS Type R intercooler or generic Ebay spec intercoolers comparable to a JustJap one. Ideally I'd order a Plazmaman but it takes over a month to receive which would mean making the car legal has to wait until next season. Would love to hear some input on this. Same story for my injectors, the previous owner was a nunce and put ID 1050x on the engine. They work but are obviously not ideal at "normal" power levels. But I don't see a reason to change them unless the tuner says it's necessary. I read online before buying a different exhaust that the top secret style rear diffusers won't fit due to the size of the rear resonators. My buddy and I made it work by slightly "adjusting the shape" of the mounting bracket and making some spacers out of 3d print for the mounting bolts. Fits like a charm. Just putting this here in case someone has this problem. Even the hefty HKS Silent Hi Power rear can fits without hitting anything.
    • Well they got my money but they are not getting my gearbox ! 
    • It's needed for rolling idle up, and I think it is a decider on VCT also.
    • I mean, not really. Link ECU's can absolutely still have errors from the ECU thinking it's getting a sensor it's not expecting. I would imagine the speed at the ECU level in Nistune does absolutely nothing anyway? I assume the ECU does not do any fancy TC stuff with regards to front+rear wheel speed or anything of that like anyway. Someone who uses Nistune may be more fluent in it. 
×
×
  • Create New...