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Questions on fuel... a lot of them

Old Mar 27, 2012, 08:10 AM
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Questions on fuel... a lot of them

I'm finally on the path of getting my car all put back together and ready to get tuned, however like the title states, I have some questions on fuel... I'm going to be using the stock ECU converted over to speed density, and I plan on using the alt map mod in tephra, but I'm undecided on which 2 fuel types I want to tune on...

I have an aquamist kit installed and it works fine, but E85 just became available at one station thats about 10 miles from my house. I was planning on just having a 93 pump map and 93+meth map, but now I'm leaning towards the E85 as the second map for its reliability and power potential. Before I make a decision tho, I have some questions.

- does my tank need to be completely empty in order to fill up with e85 and switch maps? Or is there a certain amount that is allowed that wont affect the octane too much to make it unsafe.

-What is the shelf life of e85? I was planning on getting a big barrel and filling it to keep at home in the garage for when I want it. This is a weekend fun car so this fuel could potentially sit for a while.

-If I stay with the aquamist, whats the reliability of running high-ish boost and achieving 650ish awhp? (setup below)

2.1LR Buschur racing 4g64
topmounted 6266bb
fic 2150
buschur race fmic
buschur stage 3 head
tomei 280 cams
buschur double pumper

Theres more but this should be enough info I think. I can list more details if needed
Old Mar 27, 2012, 08:19 AM
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If you have access to e85, read about it and run it.
Keep in mind when it comes to storing that ethanol is hygroscopic.
Old Mar 27, 2012, 09:48 AM
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You don't need 2150s for 650whp.
Old Mar 27, 2012, 10:44 AM
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Originally Posted by Blue91lx
You don't need 2150s for 650whp.
On E85 you do, if you want to run High-z injectors, like the FIC 1100cc/2150cc, and ID 1000/2000 injectors.

460whp on e85 and fic 1100's = 75%dc.
Old Mar 27, 2012, 12:49 PM
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Why you want High Z Injectors for e85?
Old Mar 27, 2012, 01:16 PM
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I was going to go with the 2150's so i didnt have to upgrade later if I decided to go a different route
Old Mar 27, 2012, 02:37 PM
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1680cc Hi-Zs are rated for 850whp on E85. 2150cc Hi-Zs are rated for upwards of 1000whp on E85. Too many people spend ~$700 buying them when they can easily get away with a 1680 Hi-Z or 1850 Low-Z.
Old Mar 27, 2012, 02:38 PM
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Originally Posted by 05ah8james
I was going to go with the 2150's so i didnt have to upgrade later if I decided to go a different route
Understandable. I just said that, as many people run them, but no one really needs that much injector.
Old Mar 27, 2012, 02:49 PM
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My point is that you can get this:
http://www.awdmotorsports.com/Produc...ode=IS225-1850

Instead of this:
http://www.awdmotorsports.com/product_p/is225-2150h.htm
Old Mar 27, 2012, 03:56 PM
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Originally Posted by Blue91lx
Much appreciated. I like saving money
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