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Ke90 Ke90 is offline
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Default E85 mixes + JB4 Question - 04-06-2020, 11:52 AM

If you plan to run any E85 mixtures do you have to purchase the Ethanol Sensor kit from Fuel-it for the JB4?

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Does the JB4 require it for tuning/learning or is it just strictly to show what the E85 mixture you currently have? Ex: E60,E40 etc…

I know I will need a tune designed for Ethanol mixture and once I get that, does the JB4 still need the sensor kit too?

Thanks for help.
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Payam @ BMS's Avatar
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Default 04-06-2020, 01:30 PM

Not needed to run the sensor kit.

You can run mild blends up to e30 with JB4.


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Ke90 Ke90 is offline
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Default 04-06-2020, 01:33 PM

Quote:
Originally Posted by Payam @ BMS
Not needed to run the sensor kit.

You can run mild blends up to e30 with JB4.
Thank you.
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Ke90 Ke90 is offline
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Default 04-06-2020, 02:38 PM

Quote:
Originally Posted by Payam @ BMS
Not needed to run the sensor kit.

You can run mild blends up to e30 with JB4.
If I were to run higher blends would it need it? Or can the JB4 run full E85 as long as the BEF is correctly tuned for it?

I plan on upgraded HPFP to start running E85, I just was not sure if then JB4 application needed anything else. (Ex: EWG cables or ethanol analyzer kit)

My understanding is as long as the BEF I am running is for the ethanol mixture and I am accurate when fueling the tank; there is no need to spend another $450 for an ethanol analyzer since the JB4 will still run correctly without it. (As long as correct BEF is loaded)

Thanks again for help.
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Payam @ BMS's Avatar
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Default 04-07-2020, 10:24 AM

I would get it for higher blends to make sure you're getting the E content you want for the higher boost you'll probably be pushing with it.

You will need BEF with full e85 and HPFP IIRC.


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It is the sole responsibility of the purchaser and installer of any BMS part to employ the correct installation techniques required to ensure the proper operation of BMS parts, and BMS disclaims any and all liability for any part failure due to improper installation or use. It is the sole responsibility of the customer to verify that the use of their vehicle and items purchased comply with federal, state and local regulations. BMS claims no legal federal, state or local certification concerning pollution controlled motor vehicles or mandated emissions requirements. BMS products labeled for use only in competition racing vehicles may only be used on competition racing vehicles operated exclusively on a closed course in conjunction with a sanctioned racing event, in accordance with all federal and state laws, and may never be operated on public roads/highways. Please click here for more information on legal requirements related to use of BMS parts.
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