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The mkiv Supra Owners Club

E85


nigelboyne

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lads any help or advise i was thinking in summer to have the supra bpu mapped for E85. the station is a mile away from me. is there much point ie pros or cons.and what do i need to upgrade. the updrades will go towards my single or big twin conversion in future. 2/3 denso uk fuel pumps with new fuel lines. will the 550 injectors need upgrade and anything else i need. any advise be welcomed

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My car ran lean and blew up there cost me €5000 to fix it hence why i moved back to the uk. I would be carefull what level of tuning your wanting to achieve it could be costly there bud. I was trying to run bpu well as close as i could most i could run safely was 0.9bar. good luck with your mapping as jamiep says play it safe.

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jamie if you were to run your set up on this E85 would you make even more power and is it safer

 

the mixtures can be inconsistent meaning 1 batch they get maybe good and 1 may be crap which isnt good..

 

ive read e85 is very inconsistant in america (not sure about here) so map on the safe side.

 

No, id not run it for this reason.

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My car ran lean and blew up there cost me €5000 to fix it hence why i moved back to the uk. I would be carefull what level of tuning your wanting to achieve it could be costly there bud. I was trying to run bpu well as close as i could most i could run safely was 0.9bar. good luck with your mapping as jamiep says play it safe.

 

Why could you only run 0.9 bar?

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Why could you only run 0.9 bar?

 

I think it was down to poor detonation which was causing it to spike apparently. I was advised to keep it there and not raise boost levels to stay on the safe side and after spending 5k i took his advice hence the reason i moved back to the uk.

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I think it was down to poor detonation which was causing it to spike apparently. I was advised to keep it there and not raise boost levels to stay on the safe side and after spending 5k i took his advice hence the reason i moved back to the uk.

 

Ah crap i'm running 1 bar can i get it mapped or something to make sure i don't do any damage.

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If you have an aftermarket ecu mate im sure it could be mapped to suit but i wouldnt expect to see big figures mate. E85 is the highest octane fuel there and as previous posts have stated its not 100% all the time. E85 was just being introduced when i left all i had in tralee was 95ron and had to use an octane booster with every tank and it just didnt cut the mustard. Where abouts in ireland are you? Do a search and see where your closest E85 pump is bud.

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If you have an aftermarket ecu mate im sure it could be mapped to suit but i wouldnt expect to see big figures mate. E85 is the highest octane fuel there and as previous posts have stated its not 100% all the time. E85 was just being introduced when i left all i had in tralee was 95ron and had to use an octane booster with every tank and it just didnt cut the mustard. Where abouts in ireland are you? Do a search and see where your closest E85 pump is bud.

 

I'm in westmeath. I think dublin is the closest E85 pump to me. I always used shell v-power but since thats gone i had to use 95 octaine. I've only put about 5k miles on my car and owned it over 3 year now so not much miles on 95. Also i'm now using E5 from maxol. Maxol claim its 99 octaine but i don't know.

 

Did you car just bang suddenly or did you get any warning?

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I'm in westmeath. I think dublin is the closest E85 pump to me. I always used shell v-power but since thats gone i had to use 95 octaine. I've only put about 5k miles on my car and owned it over 3 year now so not much miles on 95. Also i'm now using E5 from maxol. Maxol claim its 99 octaine but i don't know.

 

Did you car just bang suddenly or did you get any warning?

 

No warning mate it the arse fell out my world that day. E5 i have heard is 99 though from what i can gather i did do a search on maxol and its right enough apparently. I wouldnt use just 95ron its too lean if you must use it put an octane booster in aswell millers oils have a booster called cvl turbo which was the best one i found to use although it is expensive 1 bottle only treats 20litres of fuel. Is the E85 not for newer cars with bio engines or something?? E5 is the one i would use if i was still there.

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No warning mate it the arse fell out my world that day. E5 i have heard is 99 though from what i can gather i did do a search on maxol and its right enough apparently. I wouldnt use just 95ron its too lean if you must use it put an octane booster in aswell millers oils have a booster called cvl turbo which was the best one i found to use although it is expensive 1 bottle only treats 20litres of fuel. Is the E85 not for newer cars with bio engines or something?? E5 is the one i would use if i was still there.

 

Sound mate i'll keep using E5. What is everyone still online for? its 10pm Heroes is starting. I'd better go for 45 mins lol

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There is a good thread on this somewhere.

 

I believe that you use a fair bit more E85 fuel than normal fuel so probably need larger injectors.

 

Your whole fuel system needs to be suitable for alcohol based fuels.

 

You need an ECU capable of supporting flex-fuel sensors due to the different blends of E85 throughout the year.

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performance and safe boosting to 1.4+. couldn careless bout fuel consumption or cost. chris is this avgas the same stuff i delivered for small planes and helicopters thanks

 

 

Avgas 100 LL is what you need, guaranteed 100 octane, with a bit of lead in it, LL standing for Low Lead. Your O2 sensor(s) will have a shortened life, but you can get it easily and it's a LOT less hassle and expense compared to converting to and mapping for Ethanol.

 

 

If you literally aren't bothered about cost just buy some decent high octane race fuel and mix it with pump stuff.

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Avgas 100 LL is what you need, guaranteed 100 octane, with a bit of lead in it, LL standing for Low Lead. Your O2 sensor(s) will have a shortened life, but you can get it easily and it's a LOT less hassle and expense compared to converting to and mapping for Ethanol.

 

 

If you literally aren't bothered about cost just buy some decent high octane race fuel and mix it with pump stuff.

 

I'm the same just want good fuel thats safe for high boost. Where can you get race fuel or that Avgas 100 LL?

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