98 Ron Can Cost You Power

[PHaT MR30]

Ok for those that know him, hazkells Supra (7MGTE) went from 148rwkw (95RON) to 182rwkw (98RON), there was a slight boost increase...

this was on the same dyno with the same tuner and both tunes done about the same time of the year

[woolls]

I have changed to 98 ron, Prior to running 98, I sometimes used shell pulp and sometimes the knock would go to 30. Since runnind 98 ron, my knock hasn't gone over 13. I wouldn't say its has anymore power, but with less knock its well worth it. I haven't had it tuned for 98 yet but will do in the near future.

[tas skyline]

Guys,

Heres my 2 bobs worth.

I have been using BP Ultimate (98 RON) for the last year in my 32 GTR. Before it became available at the pump I was purchasing from Selfs Point in 200 litre drums. Car is tuned at Pro Automotive and I certainly noticed the power increase.

I raced my car at Baskerville couple weeks ago using BP Ultimate purchased out of the bowser from BP Brooker Hwy. The car actually felt down on power to me and felt reluctant to hit the rev limiter.

So I also share a concern on the quality of the current fuel.

Rod.

[Bov]

Ok guys, who's going to take a sample down to the uni and do some tests?

Cheers

Greg :sorcerer:

[sav man]

I'm pretty sure it would only make it to the uni bar.

[Rosie_1008]

Well........ As the person selling it, all i have heard are good reviews. Ultimate is 98 at minimum, closer to 99. The stuff has four times the detergents than regular fuel which means it cleans your engine and prevents build up, also anti-corrosion. Just for that i'd put it in my car. I think one of the main causes that produced the knock in my car that lead to the detonation on the way back from Devonport was because of the fresh tank of PULP after running it on 98RON in Melbourne

[grandmasterb]

Well........ As the person selling it, all i have heard are good reviews. Ultimate is 98 at minimum, closer to 99. The stuff has four times the detergents than regular fuel which means it cleans your engine and prevents build up, also anti-corrosion. Just for that i'd put it in my car. I think one of the main causes that produced the knock in my car that lead to the detonation on the way back from Devonport was because of the fresh tank of PULP after running it on 98RON in Melbourne

Still doesn't explain the mixed results everyone has been getting with the 98. I can understand those that haven't had tunes not seeing any difference but for the many that have paid for dyno time and have ultimately taken a step backwards, it doest really say much for that!!!

Like i mentioned before i run the truck (454 big block) on 98 and it does run better (pulls better down low and easier while towing) but i have also used it in a few other vehicle (cars & bikes) and i haven't seen any difference and not going to rush out to tune with it at the moment either!!!

[Targa Tom]

Well at $4-8 dollars a tank I think it is worth the risk. standard ECU's run super rich and safe so you are not going the get a leg-up from slower burning fuel.

The guys runing 3rd aprty ECU's and dedicated tunes are going to see a difference for sure... and it wont always be good.

One problem we have in Tassie is volume, it will sit in the ground and in a tank that has been used for a couple of different fuels in the past. The boat I believe brings all fuels so there can be cross contamination there... add all the little things up and it is not ideal.

We have used elf for the last 3 years... not always for performance gains - but just the fact it is consistent.

I can't get over the people on these forums who spend hundreds of hours and countless dollars on performance mods, then skimp on fuel.

While the power output via a standard ECU may be marginal or even down - I am reasonably comfortable saying that it would not be harming your car.

As for knock - all the Apexi users should know within ten minutes of filling up if the fuel is sus...

Now Rosie - I am to undertand you have lunched another engine? Phew, thats gotta hurt - I hope not.

My 2 Bob

TT

'bout time you got a Val dipster. Will give you a ring next time I'm going...

[JaFF]

Just out of interest, the people experiencing losses, do they have piggy-backs or stand alones?

I find with my SAFC II that it goes out of tune after a while anyway due to the stock ecu constantly learning and altering it's settings.

Before I go and get a retune for 98RON I'll be resetting the ecu, using 98RON for at least a few weeks, and then getting the tune redone.

With a stand alone I gather you should be able to dial in some more timing straight off the bat as you are the one inputting the settings into the ecu as apposed to the ecu learning and altering for itself

[Targa Tom]

Kerry

1. elf LMS (now WRC)

2. Devonport Tyres I think

3. when I last bought $980 for 200

4. The only 102RON fuel I have used... horse power in a drum!

Will be looking at all options for the Valiant, but it will need to be very attractive to change.. one reason to c hange is we will probabley get away with 98 given our stock tune.

But if you want "Numbers McLaren" to dial up the goods, use the good stuff

TT

[t01-100]

Kerry

1. elf LMS (now WRC)

2. Devonport Tyres I think

3. when I last bought $980 for 200

4. The only 102RON fuel I have used... horse power in a drum!

Will be looking at all options for the Valiant, but it will need to be very attractive to change.. one reason to c hange is we will probabley get away with 98 given our stock tune.

But if you want "Numbers McLaren" to dial up the goods, use the good stuff

TT

For everyones benfit as I emailed this to BOV and Kerry.

Sunaco GT plus - 102RON - $740 a drum - Scott Foster.

Awesome stuff and comparable with Elf WRC... Elf won't agree with that statment ofcourse, but its seeing the same numbers on the dyno.