Originally Posted by sEvoIXnTurboS2k
(Post 5738619)
I didn't think you could use 750cc injectors with E85. I thought 1000cc injectors were the minimum size?
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Originally Posted by Jim in Tucson
(Post 5737805)
skiracer,
You state that you have the RRE E85 Stage 1 with 1,000cc injectors. In the E85 Stages thread RRE lists their Stage 1 as having 750cc injectors. Please clarify. What is a "Zeitronix stage Eleventeen"? Thanks, Jim On my 1000cc, i'm around 70ish% injector duty cycle on E85. On 91 octane, i'm around 50ish% injector duty cycle :D Zeitornix "Stage Eleventeen" here at the bottom of this page: http://www.roadraceengineering.com/wideband.htm |
I was really bored and had a full tank of E85 in my car. So, i decided to see how many miles i can go if i baby the car. I drove from West LA to Willow Springs and drove back home and then some trying to maintain 70MPH and staying off boost (my gps says i did 67MPH avg) . The drive to Willow Springs, once you get on the 14N, is a LOT of long uphill highways. So, i was probably boosting anywhere fromn 0-5psi on the long uphill stretches. However, on the way home it was a lot of downhill driving.
I drove until my fuel light came on and drove for 10 about more minutes (245 miles on trip) and i filled up my tank with gas again (12.1 gallons). According to my fuzzy math 245 miles / 12.1 gallons gas added to tank = 20.24MPG I probably could've squeezed more MPG if i picked some flatter roads to drive on...and yes i really do need a life |
Originally Posted by SSP-Ralliart
(Post 5725535)
:lol: You do understand that the Dynapacks are a water break dyno right? Which means that they are the most accurate dyno around. Dynojets, Mustangs, etc.. are no where near as accurate. If you don't believe me then go to their site and question them. Don't assume about dynos without knowing how they opperate. :D Plus there is no tire slip on a dynapack.
DD, MD, DP all use applied load through eddy current, water brake, or hydraulics to apply a calculated load than can be off. Oh and as for water brakes I have seen of the largest in the world used on a 70,000 shp steam turbine engine and thay are strictly a calculated load not a known load. |
Originally Posted by sEvoIXnTurboS2k
(Post 5738619)
I didn't think you could use 750cc injectors with E85. I thought 1000cc injectors were the minimum size?
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Originally Posted by cpoevo
(Post 5765515)
I would definitely use 1000inj. I have PTE 780 and on 91 i am at about 83% IDC and that is with 11.2 AFR. I am not saying you cant use smaller injectors, I just wouldnt do it.
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Originally Posted by mrfred
(Post 5766074)
What are your 780s scaling to?
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Originally Posted by cpoevo
(Post 5766588)
It is either 696 or 713.
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I was really bored and had a full tank of E85 in my car. So, i decided to see how many miles i can go if i baby the car. I drove from West LA to Willow Springs and drove back home and then some trying to maintain 70MPH and staying off boost (my gps says i did 67MPH avg) . The drive to Willow Springs, once you get on the 14N, is a LOT of long uphill highways. So, i was probably boosting anywhere fromn 0-5psi on the long uphill stretches. However, on the way home it was a lot of downhill driving.
I drove until my fuel light came on and drove for 10 about more minutes (245 miles on trip) and i filled up my tank with gas again (12.1 gallons). According to my fuzzy math 245 miles / 12.1 gallons gas added to tank = 20.24MPG I probably could've squeezed more MPG if i picked some flatter roads to drive on...and yes i really do need a life |
How does the switch work on the stock ECU? I'd like something similar but have gotten mixed responses saying it's only doable on an AEM EMS to have an actual switch like that. What does the switch activate/deactivate to go from one to the other? Obviously it would change boost, or do you change that seperatly from the tune switch?
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Originally Posted by RyeLou
(Post 5792098)
How does the switch work on the stock ECU? I'd like something similar but have gotten mixed responses saying it's only doable on an AEM EMS to have an actual switch like that. What does the switch activate/deactivate to go from one to the other? Obviously it would change boost, or do you change that seperatly from the tune switch?
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Originally Posted by mrfred
(Post 5792198)
It works great with the factory ECU, and its only going to get better. I found a spare ADC (0-5V signal) input on the factory ECU. A toggle switch is wired up so that this input sees either 0 V or 5 V. tephra has recoded the ECU so that the ECU will choose between two sets of maps depending on which voltage it reads at the this ADC input. The maps right now include timing, fuel, boost, and I believe injector scaling. We may expand this range of maps, and for sure we will eventually setup interpolation between the two maps based on input voltage so that a flex fuel composition sensor can be wired up the ECU to make the Evo a true flex fuel vehicle.
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I really like the idea of the switch for the stock ECU. Buschur refuses to have anything to do with it. I'm waiting to hear back from AMS. I'm about 6 hours from AMS, so we'll see. There isn't really anyone else close enough to help me as far as I know. Mellon is about 10 hours away.
You could have a dual stage manual boost controller and that would work alright. I actually have something similar to this sitting around from my SRT. I guess it's technically electric..? http://ee-enhanced.com/ That might work and could be mounted out of the way too. Hmm... |
Haha, i guess i have stage eleventeen Zeitronix :))
In this whole debate about injector size, don't forget that the better you make your engine flow air by doing mods, the more fuel you will need. The more air you flow at high RPM's the bigger the IDC's. So you may get away with smaller injectors now, but if you plan to keep modding and increasing power, you'll eventually start seeing high IDC's on smaller injectors. IDC's in a way is a good estimate of power being made, so boasting about low IDC's on small injectors on similar AFR'ed (hehe new verb) and similar turbo'ed set-ups means you're just making less power. (It's tricky with E85 though, because of blends - higher ethanol content will obviously lead to higher IDC's) |
Originally Posted by RyeLou
(Post 5794073)
I really like the idea of the switch for the stock ECU. Buschur refuses to have anything to do with it. I'm waiting to hear back from AMS. I'm about 6 hours from AMS, so we'll see. There isn't really anyone else close enough to help me as far as I know. Mellon is about 10 hours away.
You could have a dual stage manual boost controller and that would work alright. I actually have something similar to this sitting around from my SRT. I guess it's technically electric..? http://ee-enhanced.com/ That might work and could be mounted out of the way too. Hmm... |
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