Over in the DSM community many of us have been running E85 for over a year now and experiencing phenomenal results. People are seeing results of 450AWHP on single 16G setups, results only dreamt of using 93 pump gas.
I've seen a common worry among many of the 10:1 TT drivers is knock/detonation. Running E85 is the cheapest and safest way to keep away knock short of running C16. It has been proven more effective than Meth injection over on the DSM forums. Did I mention that E85 is 105-107 octane and 1.93 per gallon?
E85 is less dense than standard gasoline and since injectors are measured by volume it requires more volume to keep your engine running at a healthy airfuel ratio. This translated to easy to use numbers means that running E85 you will need 15-20% MORE fuel to maintain the correct air/fuel ratio and EGTs.
There is much talk of E85 and how it disintegrates rubber fuel lines. This while in theory is true, E85 does contain enough lubrication to run on COMPLETELY factory fuel lines. Ethanol is a better solvent than gasoline and does clean out many deposits so changing your fuel filter after converting to E85 is highly recommended.
You can also run more agressive timing while using E85, I have not personally advanced timing on the 10:1 6G72 so I can't comment on this. It's possible to gain power from this, but, at what risk I don't know. This will also require more advanced engine management software so I'm not going to get in to this in this post. On the 8.5:1 with proper management this would be much more beneficial.
So, what is needed for the conversion from your stock N/A fuel system.
Fuel pump: A hotwired TT pump is sufficient to get your started but a hotwired Supra/300ZX TT/ Walbro 255 would be ideal. For higher horsepower applications a Bosch044 or dual 255's can be used. KenneBell boost-a-pump can also be used in conjunction with these pumps.
Injectors: Skip buying the VR4 injectors and move onto to something a little larger- these are a direct bolt in. For the 10:1 I recommend buying two different injectors.
A: DSM 450cc injectors, these will flow enough to run 15PSI safely on the 10:1 engine using E85 with 9B turbos, and possibly 13Gs. These can be bought for around 100 dollars for 6, which is money well spent. Injector compensation should only be about -6% across the board using these (assuming you do not have any boost leaks), so, these are a good choice to get started with.
B: Evo 560cc injectors, these are also a direct bolt in and supply a good bit more fuel. I would recommend these injectors for anyone running a 10:1 with turbos larger than 9bs. These can be had for under 200 dollars for all 6. Injector compensation should be about -35% across the board using E85. Used in conjunction with a MAFT these are relatively easy to tune with.
Wideband O2 I HIGHLY suggest buying a wideband O2 sensor whenever you are changing out injectors, otherwise you are tuning blindly and much more likely to do catastrophic damage to your engine. A tune is very important when dealing with the 10:1 since the compression is not nearly as forgiving as a it's lower compression counterpart.
Fuel Control
You have quite a few choices in terms of fuel management. Pick whichever one you like the most. I personally like the SAFC2 since it's easy to tune on the fly. Emanage is a good setup as well. A MAFT can be used but it's a bit primitive, although I have not used the new model.
This is everything you need to get yourself started enjoying the benefits of E85!
Note: Those who live in cold enviorments, E85 may cause rough starts and hesistation until the car is warmed up. So, let your car warm up. If you do not want to deal with this you can run a blend of E85/Pump if you really wanted to.
If anyone has anything they would like to add on feel free!
Have fun. (I'm a bit short on time right now but I will add anything I forgot to write a little later.)
I've seen a common worry among many of the 10:1 TT drivers is knock/detonation. Running E85 is the cheapest and safest way to keep away knock short of running C16. It has been proven more effective than Meth injection over on the DSM forums. Did I mention that E85 is 105-107 octane and 1.93 per gallon?
E85 is less dense than standard gasoline and since injectors are measured by volume it requires more volume to keep your engine running at a healthy airfuel ratio. This translated to easy to use numbers means that running E85 you will need 15-20% MORE fuel to maintain the correct air/fuel ratio and EGTs.
There is much talk of E85 and how it disintegrates rubber fuel lines. This while in theory is true, E85 does contain enough lubrication to run on COMPLETELY factory fuel lines. Ethanol is a better solvent than gasoline and does clean out many deposits so changing your fuel filter after converting to E85 is highly recommended.
You can also run more agressive timing while using E85, I have not personally advanced timing on the 10:1 6G72 so I can't comment on this. It's possible to gain power from this, but, at what risk I don't know. This will also require more advanced engine management software so I'm not going to get in to this in this post. On the 8.5:1 with proper management this would be much more beneficial.
So, what is needed for the conversion from your stock N/A fuel system.
Fuel pump: A hotwired TT pump is sufficient to get your started but a hotwired Supra/300ZX TT/ Walbro 255 would be ideal. For higher horsepower applications a Bosch044 or dual 255's can be used. KenneBell boost-a-pump can also be used in conjunction with these pumps.
Injectors: Skip buying the VR4 injectors and move onto to something a little larger- these are a direct bolt in. For the 10:1 I recommend buying two different injectors.
A: DSM 450cc injectors, these will flow enough to run 15PSI safely on the 10:1 engine using E85 with 9B turbos, and possibly 13Gs. These can be bought for around 100 dollars for 6, which is money well spent. Injector compensation should only be about -6% across the board using these (assuming you do not have any boost leaks), so, these are a good choice to get started with.
B: Evo 560cc injectors, these are also a direct bolt in and supply a good bit more fuel. I would recommend these injectors for anyone running a 10:1 with turbos larger than 9bs. These can be had for under 200 dollars for all 6. Injector compensation should be about -35% across the board using E85. Used in conjunction with a MAFT these are relatively easy to tune with.
Wideband O2 I HIGHLY suggest buying a wideband O2 sensor whenever you are changing out injectors, otherwise you are tuning blindly and much more likely to do catastrophic damage to your engine. A tune is very important when dealing with the 10:1 since the compression is not nearly as forgiving as a it's lower compression counterpart.
Fuel Control
You have quite a few choices in terms of fuel management. Pick whichever one you like the most. I personally like the SAFC2 since it's easy to tune on the fly. Emanage is a good setup as well. A MAFT can be used but it's a bit primitive, although I have not used the new model.
This is everything you need to get yourself started enjoying the benefits of E85!
Note: Those who live in cold enviorments, E85 may cause rough starts and hesistation until the car is warmed up. So, let your car warm up. If you do not want to deal with this you can run a blend of E85/Pump if you really wanted to.
If anyone has anything they would like to add on feel free!
Have fun. (I'm a bit short on time right now but I will add anything I forgot to write a little later.)