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Switching from pump to E85

Old 02-10-2019, 07:00 PM
Staging Lane
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Join Date: Jul 2017
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Default Switching from pump to E85

I am thinking of switching to E85.
I have a few questions.
First is there a good kit to get to switch to E85? If there is not a complete kit what would be the closest I could get?
Also I was thinking about doing a Walbro 450 pump. Has anyone had problems with that pump on e85?
Last. My car made 390/385 WHP/Torque on motor and 504/502 WHP/Torque on spray. Any thoughts on how much power the car would pick up?
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Old 02-11-2019, 12:45 PM
Staging Lane
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i am thinking the same, im debating what fuel pump will work good. of course i know that double walbros 450s will do the job easssy! and i know people say the 525 can do it. but i was reading online yesterday that the 525 only flows 8% more than the 450 and it takes more ( power or current which is the same ) due to a bigger pump.

again im talking in tank pumps. i am shooting for 600-650 rwhp 5.3 with a turbo.

price wise, two 450s cost the same as 1 525 only that 1 525 is easier to install lol. my other question would be what fuel line size is needed? dont mean to hijack your thread, but you would need to switch lines i believe.
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Old 02-11-2019, 12:58 PM
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subbed. I'm running n/a though but would like some insight. already got some injectors but not certain on else is needed and what tables to adjust in the pcm.
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Old 02-11-2019, 01:03 PM
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Well i ordered 1000cc SEP but not sure if they will make the power, i dont want to run them at a high DC ( dutycycle) so yeah im on the same boat lol
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Old 02-12-2019, 06:12 PM
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Will you be changing fuel line to e85 compatible?
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Old 02-12-2019, 11:07 PM
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Old 02-12-2019, 11:26 PM
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Default LS-3 or L-94 E-85

I want to swap an LS into a 1979 Camaro . I found a brand new Crate Motor .. That has Flex Fuel Injectors in it .. I am also looking at A GM Connect and Cruise engine T-57 Magnum 6 speed trans which comes with computer and wiring harness.. Also of course Clutch and bell housing kit .. If I bought the L-94 I would just have to find the right computer and harness..

If I buy the LS-3 I have no idea what parts I need to convert to E-85 There are places that sell a gas tank just like my OEM but ready to bolt a Submersible pump into..

You guys use a lot of abv for pumps and stuff which I have no clue they are .. I was simply going 13.56 @ 107 with a low compression Carbed 350 1979 pickup motor and that was before I put a 5 speed in it with a 3.23:1 first gear .. and with street tires that I have to ease off the line with .. I could always beat mid 12 second cars on the street ..




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Old 02-12-2019, 11:33 PM
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Default Haltech Flex Fuel Video

Here is how it works with Haltech Controller .. does not help with GM The sensor is simple enough .. I have read that #-85 can be from about 20% to 85% alcohol most likely 55% Ethanol they may use more gasoline in the Winter .. May not be driving a nice car in the Winter .. I am here in MI with all the salt snow and chloride .. E-85 was $1.80 per gallon last time I checked .

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