340 walbro pump
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- Jun 18, 2001
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I ran a 340 with 60lb injectors on E85 for nearly two years. I've switched back to gas, but the pump is still going.
marleyskater420
still needs to learn
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- Aug 14, 2004
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Here is a link to an article that tells you how much horsepower you can make with different sized injectors,at 100% duty cycle (scroll to the bottom for that info, the math equations to figure it out yourself are above it) : https://www.boostedrps.com/single-p...e-Your-Fuel-Requirements-for-Gasoline-and-E85
The real question we need to know before anyone can safely answer you, is how much power are you looking to make?
A 340 will work with E85 but only for so much HP. As you'll see in that article, for 600flywheel HP you'll need roughly 85lb injectors, so 80lb injectors will work for roughly 550flywheel HP.
Hope this helps.
marleyskater420
still needs to learn
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- Aug 14, 2004
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The link was helpful info, or my response was?
hahahah "moist" .... Trust me, once you reach 450, you'll want 500...then 550....then you wonder what happened to your bank account! hahaha
So I'm curious, what is your setup on your car?
Johnny Mendoza
New Member
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- Sep 8, 2017
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I had a 340 with 90lbs injectors the duty cycle would go up on the injectors at 20psi I got a 680 now I just had the car tuned by cal Hartline on Saturday made 379 at 20psi
marleyskater420
still needs to learn
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- Aug 14, 2004
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...you made 379rwhp and you have the dual fuel pump setup for 680LPH??
Are you planning on making 1,000hp on E85 or something? Who told you that you needed to spend $800 on a 680lph fuel pump setup?!?! Wtf?! Dude a single 450lph would be FINE, if you needed a little more, then add a boost-a-pump! 680lph?! Dude someone took your money and clearly doesn't feel bad about selling you parts you DON'T need...
Johnny Mendoza
New Member
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- Sep 8, 2017
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- 2
This fuel system got thrown on the car for now till second motor is done parts were laying around decided to throw them on
your info and the link were helpful thanks. yeah dude ive been looking at my bank account lately its definitely receding like my hairline. but thats ok as long as im happy. i get a chubby everytime someone gives me the thumbs up at a redlight or xpressway.
ok right now i just installed some rad ass LED lights hoping they make me at least look fast.
my turbo is a T-44, i got lonnie trans 3k stall, the 80lbs and matching chip, gn1 tb/plenum, 340 pump, hooker headers,
oh yeah i have lt1 maf and tanslator and sagging drivers door.
my turbo is a T-44, i got lonnie trans 3k stall, the 80lbs and matching chip, gn1 tb/plenum, 340 pump, hooker headers,
oh yeah i have lt1 maf and tanslator and sagging drivers door.
marleyskater420
still needs to learn
- Joined
- Aug 14, 2004
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- 1,879
I have one nut smaller than the other, so don't get too down on yourself
marleyskater420
still needs to learn
- Joined
- Aug 14, 2004
- Messages
- 1,879
shh....no one will know if we just play it off as "normal" ...
- Joined
- Jun 18, 2001
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I re-cammed the engine and the flow I needed to keep running E85 was more than the fuel lines could feed, so I switched back to gasoline. If I ever get around to upgrading the fuel lines and pump, I'll go back to the corn juice in a heartbeat. I can walk to a station that carries it and it's all over town here.
