Posted By: Slipknot440
426 HEMI and Fuel Injection - 07/04/09 07:26 PM
looking at an EFI unit for my hemi and would like some opinions or experiences with EFI on an old school engine.
Quote:i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
it's an INDY set-up with the fuel rails going directly into the manifold. I don't know much about them on old cars, but seems like it would be better than my edelbrock 800 and m1 intake
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it's moparts member that has one for sale with the ecu, rails, manifold, throttle body etc. says its complete. hhow has the performance been with it as opposed to the carb?
Quote:Quote:i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
it's an INDY set-up with the fuel rails going directly into the manifold. I don't know much about them on old cars, but seems like it would be better than my edelbrock 800 and m1 intake
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would it add any more power or just make the power available more readily available/efficient. fuel mileage?
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i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
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looking at an EFI unit for my hemi and would like some opinions or experiences with EFI on an old school engine.
Quote:was just trying to prepare the guy for the radical changes he will have to do,he dosent know thanks why he was asking.so you have the capability to make your own stainless or plastic quick disconnect efi lines? how can you ass-ume i dont know carbs when all my cars are dual quad hemi or 440 six pack all rebuilt by me. lets see pics of your super clean efi install on anything.....nice winter car in sigQuote:
i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
OEM efi cars didn't run braided lines or an fittings, so I don't see why you bring that up. For EFI pumps there are several options that use a stock gas tank, fuel cell is not needed. If adding one return line is like pulling teeth to you, you probably don't know how to tune a carb anyway. Yes you will have to see the injectors and fuel rails, but if you run your wiring carefully and run an oval 6-pack style air cleaner you can hide most of the EFI hardware/fuel system, even with a multiport setup. And if laid out with care and combined with your stock wiring harness, the extra wiring for the efi system need not be clearly visible. Likely won't make it 100% invisible but you can hide a lot of it.
Quote:Quote:was just trying to prepare the guy for the radical changes he will have to do,he dosent know thanks why he was asking.so you have the capability to make your own stainless or plastic quick disconnect efi lines? how can you ass-ume i dont know carbs when all my cars are dual quad hemi or 440 six pack all rebuilt by me. lets see pics of your super clean efi install on anything.....nice winter car in sigQuote:
i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
OEM efi cars didn't run braided lines or an fittings, so I don't see why you bring that up. For EFI pumps there are several options that use a stock gas tank, fuel cell is not needed. If adding one return line is like pulling teeth to you, you probably don't know how to tune a carb anyway. Yes you will have to see the injectors and fuel rails, but if you run your wiring carefully and run an oval 6-pack style air cleaner you can hide most of the EFI hardware/fuel system, even with a multiport setup. And if laid out with care and combined with your stock wiring harness, the extra wiring for the efi system need not be clearly visible. Likely won't make it 100% invisible but you can hide a lot of it.
Quote:Quote:was just trying to prepare the guy for the radical changes he will have to do,he dosent know thanks why he was asking.so you have the capability to make your own stainless or plastic quick disconnect efi lines? how can you ass-ume i dont know carbs when all my cars are dual quad hemi or 440 six pack all rebuilt by me. lets see pics of your super clean efi install on anything.....nice winter car in sigQuote:
i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
OEM efi cars didn't run braided lines or an fittings, so I don't see why you bring that up. For EFI pumps there are several options that use a stock gas tank, fuel cell is not needed. If adding one return line is like pulling teeth to you, you probably don't know how to tune a carb anyway. Yes you will have to see the injectors and fuel rails, but if you run your wiring carefully and run an oval 6-pack style air cleaner you can hide most of the EFI hardware/fuel system, even with a multiport setup. And if laid out with care and combined with your stock wiring harness, the extra wiring for the efi system need not be clearly visible. Likely won't make it 100% invisible but you can hide a lot of it.
Quote:yes ive looked at them for years, now the tech, and manifolds i want are finally here have talked to tim-b about the 2x4 efi on stage-v street hemi intake allready, wont be long before i convert a carbed hemi overQuote:Quote:was just trying to prepare the guy for the radical changes he will have to do,he dosent know thanks why he was asking.so you have the capability to make your own stainless or plastic quick disconnect efi lines? how can you ass-ume i dont know carbs when all my cars are dual quad hemi or 440 six pack all rebuilt by me. lets see pics of your super clean efi install on anything.....nice winter car in sigQuote:
i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
OEM efi cars didn't run braided lines or an fittings, so I don't see why you bring that up. For EFI pumps there are several options that use a stock gas tank, fuel cell is not needed. If adding one return line is like pulling teeth to you, you probably don't know how to tune a carb anyway. Yes you will have to see the injectors and fuel rails, but if you run your wiring carefully and run an oval 6-pack style air cleaner you can hide most of the EFI hardware/fuel system, even with a multiport setup. And if laid out with care and combined with your stock wiring harness, the extra wiring for the efi system need not be clearly visible. Likely won't make it 100% invisible but you can hide a lot of it.
You appear to have absolutely have no idea what your talking about
Why would you need quick disconnect efi lines? The only major changes to the fuel system is a return line,high pressure pump, and regulator
Just look at some of Rich's installs if you want any idea of how neat efi systems can be.
Don't keep your head in the sand when it comes to F.I. The technology is incredible.
Quote:Quote:was just trying to prepare the guy for the radical changes he will have to do,he dosent know thanks why he was asking.so you have the capability to make your own stainless or plastic quick disconnect efi lines? how can you ass-ume i dont know carbs when all my cars are dual quad hemi or 440 six pack all rebuilt by me. lets see pics of your super clean efi install on anything.....nice winter car in sigQuote:
i think it would look crazy hacked on stock looking muscle car, plus you would have to run all new feul system like race car all braided lines/an fittings, custum cell with efi pump, and return lines, then figure out were the mile of wires/computer are going to go? would be cool on old street rod. you can buy dual four intake/carbs/cleaner pretty cheap now id go that route,nothing sounds better than hemi with both carbs wide open
OEM efi cars didn't run braided lines or an fittings, so I don't see why you bring that up. For EFI pumps there are several options that use a stock gas tank, fuel cell is not needed. If adding one return line is like pulling teeth to you, you probably don't know how to tune a carb anyway. Yes you will have to see the injectors and fuel rails, but if you run your wiring carefully and run an oval 6-pack style air cleaner you can hide most of the EFI hardware/fuel system, even with a multiport setup. And if laid out with care and combined with your stock wiring harness, the extra wiring for the efi system need not be clearly visible. Likely won't make it 100% invisible but you can hide a lot of it.
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The system you saw for sale is an Accel DFI system, and they can be difficult to work with. Its a good deal price wise, but not easy to set-up or tune.
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slipnot440 if you want efi talk to this guy, he sells/tunes/builds the lastest and greatest fast and fast ez-efi systems for hemis. he sell/builds the stage-v converted 2x4 intake for ez-efi 4150 throttle bodies, this system is simple to control tiny onboard monitor, no laptop or interface. cheapest prices i have found and will give free info and tuning if needed go to www.fastmanefi.com by the way slipnot rocks hardcore
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The system you saw for sale is an Accel DFI system, and they can be difficult to work with. Its a good deal price wise, but not easy to set-up or tune.
OK Dragula.... I still don't get this!
As I said, I'm no EFI expert, but the Accel gen7 stuff is just as straightforward to set up as the FAST systems you like is it not?
What's the difference?
Tuning the Accel is different software, but to me, from what I have now seen over the years, it's just different programs but the same basic approach. Both seem easy from what I have been able to see....
What is the big difference?
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Lots of guys are more or less afraid of EFI or they won't try it because of cost.. but a good system should could and most times would give better all around performance.... just not more peak HP.
Is that right Rich?
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Rich, have you ever used an Accel gen7?? I know you are a FAST guy and sell FAST, but do you have any Accel experience? What would be hard about the gen7?
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Anybody know how to run nitrous with the EZ-efi setup?
Rich?
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Help?
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Anybody know how to run nitrous with the EZ-efi setup?
Rich?
I wouldn't try it. The EZ system is constantly trying to learn what the engine wants and is doing. Nitrous confuses the ECU such that the engine will run poorly for a while after nitrous use. Stay with PORT injection with nitrous!
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I just took and EFI course and I found it interesting how you can tune the timing over every rpm range (in 100 rpm increments) adjusting for build power and efficiency.
There is great potential for building part throttle power through timing adjustments, that you just cannot do easily with a regular distributor