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Your build needs to be a staple for people to follow on being cautious but goal oriented and planning. I see to many builds with people going, I want X horsepower but have no plan or idea what to do. |
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Please let me know if you have questions and ill do my best to answer. Sent from my iPhone using Tapatalk - now Free |
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RE: E-85, what do I need to run it? I was operating under the assumption that it was much more expensive than 93 octane and apparently I was way off.
It's like $3.00 p/g 1) Can I run it without a return system? 2) Assuming the cats are off the car, what are the drawbacks? Why wouldn't I drive around on E-85 all the time? |
The cost per gallon many times is cheaper but you have to factor in cost per mile also. E85 burns more so you will lower your MPG and in the end might not really save any money on a daily basis.
The pluses are it can run cooler and provide easier HP compared to pushing 93 or higher octane. I believe for moderate boosted 370z you need the proper injector size and fuel pump to match on this car. |
Depending on the size of the injectors you just put in, you may be ok or you may need even bigger ones. Your mileage will suffer, and that will negate any savings from the lower price per gallon. Availability can be an issue. Also, you can't really switch back and forth between 93 and E85, since the little bit of gas left in the tank will throw off the mix.
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I have bosch 645cc injectors and uh... A Walbro 255lph fuel pump I think.
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Any danger to the car? What are the risks without running a return system?
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There's no danger to the car from running E85. The only issue would be if the additional power ended up being too much for the stock motor.
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Ok let me rephrase then: What are the benefits of a return system assuming I have an E85 tune on the car?
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For a really good answer I'd reach out to Phunk. He seems to be the guy for fuel systems. I stopped researching the fuel return when everything I found made it seem like it was unnecessary under 600whp or so.
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Glad you posted on here Mark. Responding via Facebook mobile on my phone takes forever.lol |
645cc is TOO small. Use that fuel calculator I sent you. To run your injectors at a safe duty cycle for 500whp 1000cc is recommended. I know many people will say my statement is false but talk to Phunk he will tell you the same. Everyone thinks my fuel build is overkill size wise but it isn't for E85.
http://fuelinjectorclinic.com/flow-calculator |
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