Friday, September 29, 2006 - 03:52 pm, by: Daniel Clarke(Dieseltrain)
Is that the 100 Octane one? I have seen dyno charts of modified SKylines pulling 10-25 more RWKW running this fuel compared to 98 octane.. Due to a more aggressive timing map. I am talking on a 280rwkw skyline. BUT the 100 ron fuel did allow for at least 1.5 degrees timing advance right through, with up to 2.5 advance in some points.
Sunday, October 01, 2006 - 08:40 pm, by: Nik Peacock(Niko)
don't complain too much tassie has only just got 98(2 months) and only available as bp ultimate. Other brands let alone 100 is something dreams are made of.
Tuesday, October 10, 2006 - 09:26 pm, by: Murray Lund(Murray)
Jason, not sure where you got that information that the Soarer does not accept ethanol enhanced fuel - my Owner's manual for a UZZ31 says you can use an ethanol blend if it is not more than 10%.
Tuesday, October 10, 2006 - 10:11 pm, by: Daniel Clarke(Dieseltrain)
Well peoples. I put in 25 litres of Shell V-Power 100ron fuel. Taking my car to WSID tomorrow night. I always use 98ron Optimax at WSID. SO i guess i will find out if its faster or slower.
Tuesday, October 10, 2006 - 10:47 pm, by: Jason Cheah(Freaky)
the one with 100ron and ethanol is V-Racing. as Simon said, V-Power is still 98ron, but reformulated.
below is taken from toyota site:
Petrol Fuel blended with 10% Ethanol (E10) For vehicles manufactured or imported by Toyota Australia:
TOYOTA (Passenger Models) Locally produced Toyota models will operate satisfactorily on petrol fuel blended with 10% ethanol (E10) from the following production dates:
Camry: from Jan 1987 (All electronic fuel injection models) Corolla: from July 1994 Avalon: All Lexcen: All (Note: Previous production and Corona model not recommended due to incompatability of material)
Enthanol blend greater than 10 % is not approved
All Toyota passenger vehicles fully imported by Toyota Australia will operate on petrol fuel blended with 10% ethanol (E10), except older models: Supra Cressida Paseo Starlet (Note: E10 not recommended due to incompatiibility of material) Enthanol blend greater than 10 % is not approved
TOYOTA (Commercial Models)
All Toyota Commercial vehicles imported by Toyota Australia will operated on petrol fuel blended with 10% ethanol (E10), except models fitted with a carburettor as listed: Coaster Bus: pre Jan 1993 (carburettor engine) Dyna: pre May 1995 (carburettor engine) Tarago: pre Oct 1996 (carburettor engine) Hilux: pre Aug 1997 (carburettor engine) Hiace: pre Aug 1997 (carburettor engine) 4 Runner: pre Aug 1997 (carburettor engine) Townace: pre Dec 1998 (carburettor engine) LandCruiser: pre Aug 1992 (carburettor & EFI engine) (Note: E10 not recommended due to incompatibility of material) Enthanol blend greater than 10 % is not approved.
As indicated, the closest cousin to the Soarer, the Supra is on the "no-no" list.
Wednesday, October 11, 2006 - 10:02 pm, by: Daniel Clarke(Dieseltrain)
Well, Car ran 13.2@107..13.1@108 and 13.0@108 with a slippery half track.... I guess i can say the Vpower Racing fuel performs about the same as 98 RON fuel.
So Save your money and go just as fast Hehe.
Seriously though. The only gains you will get by using 100 over 98 is probably with Aftermarket management. It would allow more timing before detonation. So unless your going to try that, save your pennies and use 98.
Thats my 98cents worth
Jeff Smith DieHard NSW TT Limited :-) equiped toyota torsen diff
Wednesday, October 11, 2006 - 10:24 pm, by: Dominic Kelly(Drk_awd)
Did you reset your ecu after filling with the 100RON Daniel? The ecu may not have switched to more aggressive timing if you only had it in the car for a short distance and I'm guessing you didn't drive very far with only 25 litres in the tank.
I do agree that you need to have a programmable ecu to get the most out of it though.
Thursday, October 12, 2006 - 07:19 am, by: David Vaughan(Davidv)
The stock ECU will not switch to more aggressive timing unless it was detonating with the previous fuel, and that is a topical activity rather than long term tune state. It retards from the standard map when necessary but does not upgrade from standard. As Daniel said, if you want to exploit 98 or the ethanol 100 blend to the maximum then you need aftermarket management or piggyback.
Thursday, October 12, 2006 - 07:38 pm, by: Daniel Clarke(Dieseltrain)
The FCd alters timing maps by telling the ECU it is now only running say 11psi. The fact your running 15psi is what leans out the AFr's and therefor, running the timing maps of 11psi which should be a little more aggresive than the timing maps just under boost cut conditions.
Its not a pure way, but just a slight advantage i guess from a factory ecu. A bonus i guess as well as Fuel Cut GONE
Thursday, October 12, 2006 - 07:46 pm, by: Dominic Kelly(Drk_awd)
Since the factory ecu in my car has little function I've not done any research so don't claim to know the knock control algorithm used in the Toyota ecu. Often factory ecus will retard the timing for a specific period and only allow full advance again once a certain window has passed where no knock events have been detected.
This window can be very conservative in some cars so it takes a while even when you put better fuel for the ecu to revert back to full advance. An example I can think of is the Lancer GSR 4wd turbo I used to own. I had to put normal unleaded in it once in an emergency and it seemed like forever for the performance to return after refilling with nearly a full tank of PULP.
My reasoning that it might be the case with the Soarer is due to many people having noticed that resetting the ecu can result in a marked improvement in performance. I believe it's greater ignition advance that is the reason for the improvement far more than resetting the long term trim on the fuel maps.
Modern factory ecus are a lot more sophisticated nowadays with their knock/spark advance control.
Anyway, I did agree that you need aftermarket management to take full advantage of 100RON fuel but a piggyback that only does fuel and not ignition isn't going to help that much.
I run Optimax Extreme and the engine is controlled by a Motec which I tune myself. I had to increase the fuel by between 2% and 5% and was able to advance the timing by 1 to 1.5 degrees (I was being conservative). The car is smoother and more responsive with the 100RON fuel. Even though I've increased the fuel pulse widths the fuel economy surprisingly hasn't suffered that much. I think that's due to the increased torque. From the logs I've noticed I'm cruising with smaller throttle opening than was the case with 98RON.
I still think the pricing is a ripoff though. Shell is price gouging while they have the 100RON market to themselves.
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Hehe. 
