E85 Fuel Injector Sizing
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From: Walnut, CA
E85 Fuel Injector Sizing
I'm planning to run a EFR 8374 at 20-25psi boost on a street ported 13b-rew motor, planning to make 500-550whp on E85 gas.
43.5 base fuel pressure
85% duty cycle
Would 6 x ID1300X injector (total 8040cc flow rate) be sufficient for my needs?
43.5 base fuel pressure
85% duty cycle
Would 6 x ID1300X injector (total 8040cc flow rate) be sufficient for my needs?
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Joined: Aug 2012
Posts: 1,666
Likes: 88
From: San Jose, CA
Is this a flex fuel vehicle or purely e85? How did you plan on controlling the injectors?
Thread Starter
Rotary Enthusiast
Joined: Mar 2001
Posts: 761
Likes: 16
From: Walnut, CA
purely E85, Haltech Elite 1500
planning to use a flexfuel sensor just incase the e85 % lower in a batch of fuel
Hoping someone can check my calculation to make sure these are correct, injectors are expensive lol
planning to use a flexfuel sensor just incase the e85 % lower in a batch of fuel
Hoping someone can check my calculation to make sure these are correct, injectors are expensive lol
I was under the impression that the only 'true' E85 ID injectors at this point were the 1050x and 1750x.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
Banned. I got OWNED!!!
Joined: Aug 2012
Posts: 1,666
Likes: 88
From: San Jose, CA
I was under the impression that the only 'true' E85 ID injectors at this point were the 1050x and 1750x.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
I was under the impression that the only 'true' E85 ID injectors at this point were the 1050x and 1750x.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
I have built around the basic rule of thumb that e85 carries 2/3 the BTUs of gasoline, so at minimum increase by at least 1/3. This doesn't factor in the timing you're able to throw at your engine when you convert to e85 so again, rule of thumb.
Either way I think you'd need ~8400CC at around 80% duty cycle so you're very close, just make sure that those 1300s are e85 capable.
The ID725/1000/2000 have all been successfully used with E85 time and time again. Hell I used my ID2000's for 2 years and during which they saw about every type of fuel you can imagine, including ALOT of E85, when I sent them back in for servicing/inspection they passed with flying colors.
You won't have any issues running E85 on ANY of the ID injectors.
Skeese
The ID1300 was actually their first all stainless injector that is better for e85 compatibility. Should be good to go with great driveability for those power goals.
I actually have 6 brand new ones right here I would be willing to sell, I'm moving to ID1700's myself.
I actually have 6 brand new ones right here I would be willing to sell, I'm moving to ID1700's myself.