Specifically what parts and changes and values are required to run E85 fuel optimally in a VG30DETT ? How much additional power or percentage increase can be achieved by running E85 on the VG30DETT compared to 98 and other octanes? Is this the perfect and best fuel available for regular use and can additives and mixtures like water, methanol and HHO really be viable? :zlove:
E85 compatible fuel pump, all lines changed to E85 compatible, large injectors to flow the increased amount of E85 over regular unleaded.
Once you do the upgrades that bracket said .. you tune for Caltex E70 .. it will allow for say a variation from E60 - E80 with out problems . Setting up for fuel flex also requires ECU AND SENSORS and an extensive tune from 98 to E85 .
Seeing as you already 'think' you know what's required why the hell are you asking and then laughing at someone's correct reply.
Um, if you think there's more to it then that then why the hell are you even asking? Sounds To me like you know nothing about e85.
Agreed with what's already been said, you clearly know it all already. Will probably need a different fuel rail too.
ECU Tuning for Alcohol Alcohol fuels have a much wider fuel to air ratio mix than petrol. The fuel to air ratio doesn't need to be as precise as petrol. This is evident in your suggestion concerning tuning for a +10% to -10% (20%) variation in alcohol content. An ECU tuned for petrol will operate quite satisfactorily on alcohol. If you wanted to "fine tune" via the ECU, Nistune would be more than capable. Don't know what other sensors would be required.
You missed the part on FUEL FLEX which requires Ethanol sensor and an ECU that can run it to tune a variation from 98 to E85 like my setup Different than just tuning for one fuel which a nistune will do
Don't know that this is correct. The general rule is (ie starting point) is that you will need to supply 30% more fuel when running E85 over normal petrol. So I can't see how an ecu tuned for PULP98 is going to successfully run E85 fuel? Also ethanol blend fuels are not the same as your traditional 'alcohol' fuels.
thats the stuff I am after blackbeast Dear Blackbeast Great - appreciate you post as it answered much of what I wanted to know, but I was hoping you could break it down and explain a little more what is involved here (for a layperson in octane efficiency) in how you tune for caltex E70, and what you mean by "setting up for fuel flex requires ecu and sensors and extensive tune from 98 to E85." I only have a little knowledge about modifying the VG30DETT for E85 but even I am completely lost by what you mean (LOL) and what is required in steps to do to tune it optimally. - I there values and figures to achieve? If its too long and complicated to explain, is there a website/ link / book or guide that you know of that I can read up on that will explain further what you are talking about in regards to this type of tuning VG30DETT on E85 and what you mean about flex fuel? Is it also true that you have to modify the fuel tank to allow for E85 or does it not apply to the 300zx? I heard that injectors should not be pintle type, is this correct and why? Why do you need a new fuel rail as Jamie suggests, is this merely for the new injectors to sit in the rail or is there an alternate reason such as (example only) fuel rails cannot be made of aluminium as it reacts with E85? Don't be a d... and take it out of context mate: rolleyes: Bracket responded with E85 compatible fuel pump, all lines changed to E85 compatible, large injectors to flow the increased amount of E85 over regular unleaded but this only answered the parts portion of the question of "what parts and changes and values are required to run E85 fuel optimally in a VG30DETT ? How much additional power or percentage increase can be achieved by running E85 on the VG30DETT compared to 98 and other octanes? Is this the perfect and best fuel available for regular use and can additives and mixtures like water, methanol and HHO really be viable? I appreciated the correct and helpful response to my question from bracket, albeit if it was only 1/10 of the question and so given I appreciated the correct response, I wasn't laughing at him, but rather the 1/10 of an answer in response. So please don't be a d... in taking things out of context to what they actually are and mean. To answer the question posed by a few "What is the lots more to it than that" refer to the answer by Black Beast and I even get the impression that there is more to come still. To set the record straight, I do appreciate any and all constructive input on running E85 optimally Thanks and Regards Jamie
OMG - I feel very small and am beginning to think I really have heaps that I am now going to have to learn Help
I believe that if you're running an ECU such as a Haltech that has an ethanol sensor, it varies the tune based on the ethanol reading therefore allowing you to run both 98 and E85 on the same tune.
Which means you cannot run nistune and tune for both 98 and E85 fuels, unless you completely change the fuel and change the maps, but why would you want to change between 98 and E85? Is there a reason for wanting to do that?
Correct, you would have to ditch the nistune if wanting to do so. I intend on switching between the two of them due to availability and the fact that you really don't need 400kw+ on 25psi+ for everyday driving.
My stock fuel pump and lines have melted away and my fuel filter has 1kg of blocked sludge Not rocket science mate (I've build a rocket before aswell ) Who is running e85 here? Biggest point I can give is you will need to drop 2k on fuel injector or rail
A flex fuel tune is tuned with various maps which allows you to run 98 to E85 with anything in between example E15,E25 etc. It automatically reads the ethanol content and adjusts the map to suit . It's not just 2 seperate map tunes . Fuel tank is fine ..it's recommended to keep your tank full if not using car for a period of time as it is less likely for the ethanol to absorb water. Pintle style have known to fail due to corrosion .. You can search that . Aluminium will be fine and stock rail is fine just use adaptors for new style injectors. Getting well Over 400 rwkw ..change fuel rail because you will need 1000cc and more volume in flow .. Top feed is the way to go . You will make more power everywhere .. spool and top end as you can run aggressive timing and boost way past the limits of 98 fuel as well as combustion runs cooler .. .
