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E-flex = flex fuel = varying content...

Not only is it hard to come by, but you may tune your car to E80, then fill up next week with E70.. And if you dont have a content sensor hooked up and calibrated you are risking total melt down.

Not only this, but the ethanol is an awesome agent to break down oil. Meaning faster service intervals and potential increased wear on the motor.

I'm just not sold at this stage and aren't recommending E-flex on any level anymore. You can however join our WMI thread and have a squeaky steam cleaned engine that you can fill up anywhere, run no risk of melt down with a simple $500 kit ($30 buys a low level light, then switch to low boost) and literally increase the longevity/healthy/safety of your motor while pushing further towards the power threshold of your setup.

WIN.

Yeah, i was watching Louis Theraux do a show on meth addicts the other night..it wasnt pretty think i will sit that one out, but you Boys have fun ok..

so many e warriors in here.. such fail.

rookie e warriors always say that :P

E-flex = flex fuel = varying content...

Not only is it hard to come by, but you may tune your car to E80, then fill up next week with E70.. And if you dont have a content sensor hooked up and calibrated you are risking total melt down.

Not only this, but the ethanol is an awesome agent to break down oil. Meaning faster service intervals and potential increased wear on the motor.

I'm just not sold at this stage and aren't recommending E-flex on any level anymore. You can however join our WMI thread and have a squeaky steam cleaned engine that you can fill up anywhere, run no risk of melt down with a simple $500 kit ($30 buys a low level light, then switch to low boost) and literally increase the longevity/healthy/safety of your motor while pushing further towards the power threshold of your setup.

WIN.

I call your varying ethanol content and raise you an empty water bottle. I know which one will kill the engine quicker tuned to the edge... :P

Either way I would get a manifold mounted exhaust temp sensor with warning.

Just have to fit all the parts and the profec to it. Its been a donor car for all the other skyline parts that dont survive on dyno. Mainly coilpacks and boost T

haha thank god for that car!

fingers crossed u can get it tuned this w/e :D

Gtscott your kidding right, what difference is a slight variation in ethanol content to a variation in pulp..as long as you are tuned safely with some room for variance you should have no problems and still have extra kws..

Well we have to do something to catch up to the HG thread its like 70 pages ahead of us..

Haha I'm all good man, no more e wars for me anymore, guess I will just retire to the grandstands with a glass of beer and spectate from now....:yucky:

I call your varying ethanol content and raise you an empty water bottle. I know which one will kill the engine quicker tuned to the edge... :P

Either way I would get a manifold mounted exhaust temp sensor with warning.

Lol yeah your perfectly correct, yet what I neglected to adequately mention was that you can easily put measures in place.

In my case I am going to have a low level warning and have my car tuned to low boost without WI and high boost with WI. I am actually going to look for an EBC with a remote switch too, so I can wire it up to switch to low boost on its own.

But short of a content sensor equipped ECU, there is no telling if Caltex have dicked you till you lean out and melt something :thumbsup:

And while you might say that is the same thing as 'putting measures in place'... Its a lot cheaper to buy $500 worth of WMI parts and refill distilled water than it is to buy a full ecu and have someone tune it properly for varying content. I priced the exercise up for myself, it was in the vicinity of $4000 for a basic (effective) flex fuel setup and tune. It went up close to another $1000 once I asked the tuner to have the car able to go right back to straight 98.

But he was happy to tune it to straight e-flex for a reasonable price if I wanted, and it 'should' be fairly consistent around the E70 mark :rolleyes:

Gtscott your kidding right, what difference is a slight variation in ethanol content to a variation in pulp..as long as you are tuned safely with some room for variance you should have no problems and still have extra kws..

Wrong. Ethanol burns completely differently to petrol, 10% variance in content could have a major effect in terms of 'rich or lean'.

Just because you don't tune it to the ragged edge doesn't mean it wont lean out.

Wrong. Ethanol burns completely differently to petrol, 10% variance in content could have a major effect in terms of 'rich or lean'.

Just because you don't tune it to the ragged edge doesn't mean it wont lean out.

I don't know any tuners that wouldn't tune e85 on the slightly rich side to compensate. What you may not realise is its the other way around, the varying e85 mixture make sweet FA difference to the AFR's and the car is still 100% safer than your normal 98 tune. I would still recommend a wideband to potential ethanol users but I would make the same recommendation to people pushing 98's boundarys.

You do know 98 varies with the seasons too right?

gauge this gauge that. fkn put the handle into the tank fill it up and hold it flat.

decent tuner = will last regardless forged this forged that.

listen to that typical eflex hater.

ive had bp98 tuned in my STOCK rb25 for 3yrs at 400rwhp and last 12months 470rwhp..

now eflex and 450hp as i run lower boost by choice and i prefer not to pay $1.70/ltr for shit 98.

maybe spend more time actually doin something on ur car instead of ur 300 paragraph replys on here lol.

Edited by methz

I don't know any tuners that wouldn't tune e85 on the slightly rich side to compensate. What you may not realise is its the other way around, the varying e85 mixture make sweet FA difference to the AFR's and the car is still 100% safer than your normal 98 tune. I would still recommend a wideband to potential ethanol users but I would make the same recommendation to people pushing 98's boundarys.

You do know 98 varies with the seasons too right?

To be more accurate, different suppliers have different methods of mixing their fuels. One of the main reasons BP98 got the wrap it did years back is because BP guarantee their blend to be the same all year round. However, you are correct and both Caltex and Shell 98 blends are 'seasonal'. They still are a 98ron fuel however the additives used to reach that target change with the seasons and availability of materials. This was a major reason why BP won the sponsorship rights to the V8s.

Without being argumentative, I am of the strong opinion an 'untuned' variation in ethanol content can and will have a devastating effect on the motor. Remember that there are 2 separate components to the fuel, and you are also varying gasoline content too.

gauge this gauge that. fkn put the handle into the tank fill it up and hold it flat.

decent tuner = will last regardless forged this forged that.

listen to that typical eflex hater.

ive had bp98 tuned in my STOCK rb25 for 3yrs at 400rwhp and last 12months 470rwhp..

now eflex and 450hp as i run lower boost by choice and i prefer not to pay $1.70/ltr for shit 98.

maybe spend more time actually doin something on ur car instead of ur 300 paragraph replys on here lol.

Aww Diddums, did my mean comments upset you?

Don't worry, I'm sure your 20hp will come back. There there, I wrote you an essay and made it all better now. :yes:

I am of the strong opinion an 'untuned' variation in ethanol content can and will have a devastating effect on the motor. Remember that there are 2 separate components to the fuel, and you are also varying gasoline content too.

I use United e85 sometimes and just add a few litres of 98 in the mix. It doesn't make any difference to my wideband readout if i'm a litre or two out either way. The old tune ran 18:1 on cruise perfectly well so i'm sure the 16:1 I run now will be quite safe. Try that with petrol...

At maximum load there is that much more fuel volume pumping in the cylinder, so the pistons are cooled considerably more than with 98, allowing even more safety margin.

E-flex = flex fuel = varying content...

Not only is it hard to come by, but you may tune your car to E80, then fill up next week with E70.. And if you dont have a content sensor hooked up and calibrated you are risking total melt down.

Not only this, but the ethanol is an awesome agent to break down oil. Meaning faster service intervals and potential increased wear on the motor.

I'm just not sold at this stage and aren't recommending E-flex on any level anymore. You can however join our WMI thread and have a squeaky steam cleaned engine that you can fill up anywhere, run no risk of melt down with a simple $500 kit ($30 buys a low level light, then switch to low boost) and literally increase the longevity/healthy/safety of your motor while pushing further towards the power threshold of your setup.

WIN.

Well I didn't want to get into a discussion about E-flex lol, it was more a play on words...you know...E-warrior/E-flex...

But while we're here, I have to say, I am 100% with Scotty (fabricating Scotty, lol) on this one. I have too many friends running ethanol with no ill-effects to ignore the benefits of an ethanol setup and be scared by the myths. There are plenty of safety measures you can put in place if you are concerned (wideband or E-sensor), and from what I've heard, the variation in blends makes SFA difference to your engine. It may run with less power (still more than on 98) depending on ethanol content, but the science and good tuning is there for it to be nowhere near dangerous. It's been discussed very in-depth in other threads. You should do a search on SAU and have a read of them, it's fascinating the amount of research and tuning time people have put into it. Race Pace even wanted to hook me up with a tune that would allow me to run E-flex full time and putt around off boost on 98 in a fuel deprived emergency :)

But then, we live in Victoria, the ethanol state. So it's much more convincing to have servos popping up left right and centre with the stuff...

Well I didn't want to get into a discussion about E-flex lol, it was more a play on words...you know...E-warrior/E-flex...

But while we're here, I have to say, I am 100% with Scotty (fabricating Scotty, lol) on this one. I have too many friends running ethanol with no ill-effects to ignore the benefits of an ethanol setup and be scared by the myths.

LOL All good guys, I'm happy to hear different opinions and/or be told I'm wrong. At the end of the day I'm only voicing an opinion myself.

No discredit to Ethanol based fuels at all from me, but I would only go there 1) when its fully rolled out and available in my state, and 2) if and when I run a content sensor.

I get my content woes/information down a short grape vine from the very top of CAMS hierarchy. Not that it changes anything, but like I've said before we all form our opinions somehow.

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