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maxlegends maxlegends is offline
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Default What do i need for full E? - 07-14-2019, 01:15 PM

Hpfp or both hpfp and lpfp

Aside ams any recommended brands for a good hpfp?
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ddnspider ddnspider is offline
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Default 07-14-2019, 02:55 PM

Both, plus a tune and E content reader.
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maxlegends maxlegends is offline
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Default 07-15-2019, 09:31 AM

I have a flex fuel sensor. I was curious if I purchased an ams hpfp will it be enough? Some people say yes. Others say I need a lpfp too. I was even told to get full E I need upgraded injectors as well. And I cannot run full E without a backend flash on just a jb4? Thats news to me
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maxlegends maxlegends is offline
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Default 07-15-2019, 10:09 AM

I have a flex fuel sensor. I was curious if I purchased an ams hpfp will it be enough? Some people say yes. Others say I need a lpfp too. I was even told to get full E I need upgraded injectors as well. And I cannot run full E without a backend flash on just a jb4? Thats news to me
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ddnspider ddnspider is offline
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Default 07-15-2019, 10:25 AM

To really run straight E85, you need LPFP and HPFP. You shouldn't need injectors, although I believe Nostrum or someone is making them as part of a kit. I haven't seen anyone calculate injector duty cycle yet on the stockers so we don't really know where the limit is. I don't believe BMS has released their Ethanol kit yet that integrates into the JB4, but even when they do, you'll need an Ecutek tune to properly handle the fuel/spark tables for both the higher volume fuel pumps and the increased Ethanol content. Bolt on people on here have tried to push high E contents and let the fuel trims correct and we've already seen them max out the trims and start running lean.
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Terry @ BMS Terry @ BMS is offline
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Default 07-15-2019, 10:29 AM

It depends on the power level being used... On the JB4 only front we only support up to E40 currently. To run straight E85 at a minimum you'll need a reflash to adjust the fuel scalars and lean out the AFR, and likely a low pressure pump (Fuel-IT kit is a good option for that). At some point high pressure will become an issue also but that is more of a power specific thing.


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