Well, when the first aux fuel system came out a few weeks/months ago, it was debated a small bit. In light of that, I'd like to share what I've found and maybe re-kindle some talk about these systems...
Options..
$880 aux kit from DHM using a single injector for throttle body type injection.
The meth setup I'm going to use ( hold on, I'll feed you baby birds ).
And the setup someone else is working on currently to use 4 MPFI injectors with a rail and maybe a "split second" controller.
Each setup has some advantages and disadvantages and honestly, I think its going to just come right down to what your needs and goals are...
Stratified/DHM throttle body injection Aux system. Biggest thing I can think of, right off the top of my head, and maybe the most important at this time is.... It works. No doubt about it, it works, its been proven. Its priced fairly. Its not cheap, but I feel like its priced fairly IMO. Disadvantages ? Well... Russ himself brought this to my attention a good while ago, the stock intake manifold and the intake ports are not meant to flow any liquid. Its not that it can't, its just it was meant for air and air only from the ground up. Throttle body injection isn't going to fuel each cylinder 100% equally. How much is it off? Hard to say ( at least for me ). I know in my experience with meth injection, cylinder to cylinder fueling IS NOT perfect. Another disadvantage is that its stealing fuel from your oem fuel system. My viper guys always pointed this out to me when using WET nitrous kits on my SRT4. Viper guys can run 400shots of nitrous on stock engines. But what does that mean for a 550whp car looking to add 350whp of nitrous with only 1 fuel pump? It means upgrading the entire fuel system or running an extra fuel cell with race gas for the second stage of nitrous. Their solution worked amazing. Propane. They would use a small propane bottle to supplement the nitrous kit and the stock fuel system just kept up with the 550whp of the engine. Magic, a 1000whp fuel system on nitrous using a stock fuel pump, lines, injectors,regulator, and tank. Anyway, their point was valid taxing my in-tank pump to feed my nitrous kit was not helping it keep up with 24.5psi. Same goes for us. The aux steals fuel from our DFI to feed the throttle body injection. Russ proved it made 420whp, so it may not be a bad deal, but... It is a disadvantage no less. Another issue is... Not everyone lives next to a E85 station and it can be hard to come by, essp when your getting 21mpg on E85, your using a lot of volume/liquid.
Big Meth setup. I based my setup off of what MikeST used. An intake manifold spacer, 4 meth injectors (devils own), 4 way distribution block (devils own), solenoid, filter (AEM), AEM 0-35psi internal map controller V2, AEM pump V2, aquamist tank fitting/pre-filter, aquamist 5th injector in the cold pipe for charge cooling with 100% meth.
Advantages: $782 is about $100 cheaper vs DHM aux kit. Does not tax the stock fuel system. Perfectly hits each cylinder almost right at the valve with the same amount of fuel on every cylinder. Also may get some response/torque gains from the intake spacer its self, but I've personally never bought into that part. I also believe that meth is a better fuel than E85 or any mix of it. This kit used with pump gas will have no effect at all that using ethanol mixes MAY have on the HPFP that has been seen and documented in mazda speeds. No way any other option can match meth's in cylinder cooling effect that will drop the bottom out or EGT's. I feel that 100% meth in a system like this one could ultimately be pushed further than E85 in the gas tank. If you simply can not get E85 in or around your area and your stuck with piss-91oct, I think THIS IS YOUR OPTION. MikeST said it feed his PTE6262 (700hp turbo) at 30psi with a AFR of 11.0-11.1 through the entire RPM band. So its capable of some real fueling.
Disadvantages ?: well... Honestly, its not that much cheaper than a developed kit that is already in our hands. Your gonna have to order parts from a couple different places and wait 6-12 different shipping times. It still requires you to hunt down special fuel. Although, 5-gal on meth, special mail ordered, isn't too expensive, and if you cut it with distilled water, you make it last even longer. You can also turn it off when your just chilling on a eco-tune. Of course meth kits require some maintenance. And the big fear factor of running out of meth is always present or a failure at speed. Honestly, the new controllers, and the newer pumps are pretty good. While it can happen, I think the fears drive a market of fail safes, but that is IMO and you can easily get into the $1300 range with this if you wanna go over the top. Its also a more involved install than the aux kit. It has more plumbing/failure points as well.
The 3rd system is yet to be released, but we've pics of prototype testing. MPFI injectors with a fuel rail plumbed off the stock fuel line and controlled by a split second controller. This setup will be capable of adding INCREDIBLE amounts off fuel ( should ever need it ), while it should also be able to have a controlled and nice spray pattern at low duty cycles when its only helping a very small amount. Perfect cylinder to cylinder and great injection location. It is also likely to atomize the fuel the best of all 3 options. No doubt about it, you could run E98 on about any setup/turbo the fiesta could spool, lol.
Disadvantages?: I can't imagine anyway the total cost of this kit comes in under $880. Its not developed. It may or may not even become available. The controller maybe better or not as good at the one DHM/Straified uses. It still steals fuel from the oem fuel system. Will it ever be proven to make 420whp or more? How reliable are the injectors etc that are being used and expected to work with E98 and down? A lot of questions...
Ok guys. Gloves off, lol. Any thoughts, suggestions, ideas, things I forgot or didn't think of, or didn't know?, corrections ? Its all open. No feelings to be hurt or egos to be stroked, but try to be respectful. What are your thoughts ???
Options..
$880 aux kit from DHM using a single injector for throttle body type injection.
The meth setup I'm going to use ( hold on, I'll feed you baby birds ).
And the setup someone else is working on currently to use 4 MPFI injectors with a rail and maybe a "split second" controller.
Each setup has some advantages and disadvantages and honestly, I think its going to just come right down to what your needs and goals are...
Stratified/DHM throttle body injection Aux system. Biggest thing I can think of, right off the top of my head, and maybe the most important at this time is.... It works. No doubt about it, it works, its been proven. Its priced fairly. Its not cheap, but I feel like its priced fairly IMO. Disadvantages ? Well... Russ himself brought this to my attention a good while ago, the stock intake manifold and the intake ports are not meant to flow any liquid. Its not that it can't, its just it was meant for air and air only from the ground up. Throttle body injection isn't going to fuel each cylinder 100% equally. How much is it off? Hard to say ( at least for me ). I know in my experience with meth injection, cylinder to cylinder fueling IS NOT perfect. Another disadvantage is that its stealing fuel from your oem fuel system. My viper guys always pointed this out to me when using WET nitrous kits on my SRT4. Viper guys can run 400shots of nitrous on stock engines. But what does that mean for a 550whp car looking to add 350whp of nitrous with only 1 fuel pump? It means upgrading the entire fuel system or running an extra fuel cell with race gas for the second stage of nitrous. Their solution worked amazing. Propane. They would use a small propane bottle to supplement the nitrous kit and the stock fuel system just kept up with the 550whp of the engine. Magic, a 1000whp fuel system on nitrous using a stock fuel pump, lines, injectors,regulator, and tank. Anyway, their point was valid taxing my in-tank pump to feed my nitrous kit was not helping it keep up with 24.5psi. Same goes for us. The aux steals fuel from our DFI to feed the throttle body injection. Russ proved it made 420whp, so it may not be a bad deal, but... It is a disadvantage no less. Another issue is... Not everyone lives next to a E85 station and it can be hard to come by, essp when your getting 21mpg on E85, your using a lot of volume/liquid.
Big Meth setup. I based my setup off of what MikeST used. An intake manifold spacer, 4 meth injectors (devils own), 4 way distribution block (devils own), solenoid, filter (AEM), AEM 0-35psi internal map controller V2, AEM pump V2, aquamist tank fitting/pre-filter, aquamist 5th injector in the cold pipe for charge cooling with 100% meth.
Advantages: $782 is about $100 cheaper vs DHM aux kit. Does not tax the stock fuel system. Perfectly hits each cylinder almost right at the valve with the same amount of fuel on every cylinder. Also may get some response/torque gains from the intake spacer its self, but I've personally never bought into that part. I also believe that meth is a better fuel than E85 or any mix of it. This kit used with pump gas will have no effect at all that using ethanol mixes MAY have on the HPFP that has been seen and documented in mazda speeds. No way any other option can match meth's in cylinder cooling effect that will drop the bottom out or EGT's. I feel that 100% meth in a system like this one could ultimately be pushed further than E85 in the gas tank. If you simply can not get E85 in or around your area and your stuck with piss-91oct, I think THIS IS YOUR OPTION. MikeST said it feed his PTE6262 (700hp turbo) at 30psi with a AFR of 11.0-11.1 through the entire RPM band. So its capable of some real fueling.
Disadvantages ?: well... Honestly, its not that much cheaper than a developed kit that is already in our hands. Your gonna have to order parts from a couple different places and wait 6-12 different shipping times. It still requires you to hunt down special fuel. Although, 5-gal on meth, special mail ordered, isn't too expensive, and if you cut it with distilled water, you make it last even longer. You can also turn it off when your just chilling on a eco-tune. Of course meth kits require some maintenance. And the big fear factor of running out of meth is always present or a failure at speed. Honestly, the new controllers, and the newer pumps are pretty good. While it can happen, I think the fears drive a market of fail safes, but that is IMO and you can easily get into the $1300 range with this if you wanna go over the top. Its also a more involved install than the aux kit. It has more plumbing/failure points as well.
The 3rd system is yet to be released, but we've pics of prototype testing. MPFI injectors with a fuel rail plumbed off the stock fuel line and controlled by a split second controller. This setup will be capable of adding INCREDIBLE amounts off fuel ( should ever need it ), while it should also be able to have a controlled and nice spray pattern at low duty cycles when its only helping a very small amount. Perfect cylinder to cylinder and great injection location. It is also likely to atomize the fuel the best of all 3 options. No doubt about it, you could run E98 on about any setup/turbo the fiesta could spool, lol.
Disadvantages?: I can't imagine anyway the total cost of this kit comes in under $880. Its not developed. It may or may not even become available. The controller maybe better or not as good at the one DHM/Straified uses. It still steals fuel from the oem fuel system. Will it ever be proven to make 420whp or more? How reliable are the injectors etc that are being used and expected to work with E98 and down? A lot of questions...
Ok guys. Gloves off, lol. Any thoughts, suggestions, ideas, things I forgot or didn't think of, or didn't know?, corrections ? Its all open. No feelings to be hurt or egos to be stroked, but try to be respectful. What are your thoughts ???
