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Running 95Ron With 300+Kw?

hypo33

By hypo33,
in Engines & Forced Induction

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hypo33 Contributor

hypo33

Posted
Posted

Hey guys

I'm wondering if it's possible to tune a rb26 on 95 octane and still produce decent numbers with out detonation.

At the moment I'm living in the sticks and 95 is all that's available right now. I have developed a real pesky itch to buy another skyline and the fuel issue is the only thing holding me back.

Cheers

Scott

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paulr33 Grand Master

paulr33

Posted
Posted

i reckon it could be done but youll be limited by how much boost you can run

otherwise you will just comprimise tuning for boost which will give you that doughey effect

many people overseas from memory run spazzo power on penis fuel so it can be done

if you were going to try i would do a reasonable timing map - maybe even just a bit of a tune of the stock map and then run a small amount of boost

and slowly increase boost and go from there

intake temp, engine compression and boost will all work against the lower octane so make sure these are managed well

ie dont have a hot pod sucking hot air

Hanaldo Grand Master

Hanaldo

Posted
Posted

many people overseas from memory run spazzo power on penis fuel so it can be done

That's very different, you can't really compare our octane ratings with other countries octane ratings. Not only does altitude affect the fuels performance, but some places like USA and Canada use the Anti-Knock Index instead of RON, so their numbers look different to ours but are in fact the same or better.

hypo33 Contributor

hypo33

Posted
  • Author
Posted

Hey wedge_r34gtr

I sold my r33 before I came to Hedland and now that I'm making good money I want to splurge on an insane gtr but the only thing stoping me is the lack of 98ron.

The only places that sell the required fuel that I know of are Capricorn road house near newman and down karratha way which is quite unfortunate.

Thanks for the info guys, I might just go and buy a road bike instead.

JustinP Mentor

JustinP

Posted
Posted

Hey wedge_r34gtr

I sold my r33 before I came to Hedland and now that I'm making good money I want to splurge on an insane gtr but the only thing stoping me is the lack of 98ron.

The only places that sell the required fuel that I know of are Capricorn road house near newman and down karratha way which is quite unfortunate.

Thanks for the info guys, I might just go and buy a road bike instead.

As someone said above - water / methanol injection! Would be perfect and would help in the hot climate up there.

hypo33 Contributor

hypo33

Posted
  • Author
Posted

I just done some reading up on the aem setup and it sounds good.

Anyone had any experiance with water/methanol injection?

How long would a tank last?

would placing the nozzle infront of the throttle body be better than placing it infront on the turbo housing?

Any info would be very much appreciated.

KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

I just done some reading up on the aem setup and it sounds good.

Anyone had any experiance with water/methanol injection?

How long would a tank last?

would placing the nozzle infront of the throttle body be better than placing it infront on the turbo housing?

Any info would be very much appreciated.

There's a 16 page thread just a few down ...
paulr33 Grand Master

paulr33

Posted
Posted

the piont is, it can be done if you can be bothered, have no other fuel choice and are prepared to spend some time learning about different setups

if you cant be bothered, expect instant results and want to run the same boost and setup as 98 then yeah it wont work, but if you are open to some research and other options then you can do it with comprimises

  • 1 month later...
JDM33 Collaborator

JDM33

Posted
Posted

im also in hedland and had my GT-R tuned for 95.

You do miss out on alot of power but i would not get a GT-R because of the lack of fuel. i know of many performance cars that have also been tuned for 95 and all run fine without a problem.

My 33 will be up for sale soon, if your looking.

discopotato03 Grand Master

discopotato03

Posted
Posted

Wasn't Mr Mafias original octane drama because he didn't have a local supply of 98 ULP ?

People I know that work there tell me its often very hot and humid and not the best conditions for high performance petrol engines .

Water injection sounds good and is possibly the only practical alternative if you can't get higher octane fuel or E85 .

Dusty dirty hot humid salt air , enemy of machinery . A .

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