Add On EFI By go4it (Read 790 times)

[go4it]

Something I picked up from an electric bike forum. Looks really cool and simple. I wonder how much it improves the prower output and fuel eff.

Anyone tried something like this yet?

Bob

www.ecotrons.com/Small_Engine_EFI_PNP_kit.html

[Bashan]

Wow Bob, that is a real find. We have a guy that did an EFI conversion on a 50cc and I'll find that thread and post a link tomorrow. These people are affordable and they have different units for 50cc and on up. Here's a picture of the EFI Bob found:

I've been chomping at the bit to do an EFI conversion and I think this might be the one meant for me. Rich

[Bashan]

I found that thread, here's a link to it. It turns out that it's the same company. Rich

[royldoc]

You will not be dissapointed. You may need to modify the throttle cable. be sure to install the O2 sensor properly, they burn out quick if not. Get their CDI. It takes a bit of tweaking with the software. The fuel pump is a large drain on the charging system. The battery will not charge properly if you start it a lot and at idle. I'm waiting on a lower amp pump to see if that helps. I have an older system, the newer ones are a little better though. Also Matt at Ecotrons Is super helpful.

Roy

[Alleyoop]

Royldoc,
So how did yours turn out? I have been looking for the final results of your install of the EFI.
Any gains of anything and or how is it working, any problems etc..
Alleyoop

[bobf]

My guess is that we are talking about Electronic Fuel Injection, EFI. I am certainly not sure why I would do this on a small engine like the 244cc in my scoot. What is the gain for the expense and time to make this conversion? I am not interested in making my scoot go faster as I don't think about ever running at WOT. Would I gain in MPG, sufficiently to pay the cost in a year or two? It does sound like a neat project but I have no incentive to do such at this time.

Glad to hear of any and all reasons for this move.
.

[Bashan]

I think "neat project" are the key words here. Yes you're right Bobf, I don't think you'd ever recover the money spent on the EFI in fuel savings. And yes, you're probably not going to smoke the rear tire down to the rim when you're done. But I think one of the appealing things about scooters is that you can get into an experimental and interesting project without breaking the bank. If you tried to do an upgrade of that magnitude to a car or truck you'd be looking at thousands of dollars. Scooters are a hobby for me and I'd have a blast tearing into my scooter to see if I could make an EFI work. It is some coin that's true, but there's a lot more expensive hobbies and interests than our scooters. JMO, Rich

[royldoc]

Alley, I finally got it running. Throttle response is crisper than with a carb. Overall it has a little more pep. Fuel efficiency depends on how ya ride but still good. I ride wot most of the time. So far the only problem is the system puts a strain on the charging. If I ride on long trips It ain't bad. but lots of starts and long idles the battery needs to be charged. I am going to try a lower amp fuel pump when they are available. I am still tweeking the software for cold starts but other than that I am more than satisfied with the system.I'm going to try it on the magnum but need to order a larger injector. and flash the ecu.
Bashan, you are correct this is a neat project. My trike is my hobby horse. I didn't plan on recouping my money and am not worried about fuel efficiency. I just like to tinker and try new things just to say I done it. ;D
Next projects stroker crank and then turbo


Roy

[go4it]

Aug 30, 2011 23:25:47 GMT -6 royldoc said:

Alley, I finally got it running. Throttle response is crisper than with a carb. Overall it has a little more pep. Fuel efficiency depends on how ya ride but still good. I ride wot most of the time. So far the only problem is the system puts a strain on the charging. If I ride on long trips It ain't bad. but lots of starts and long idles the battery needs to be charged. I am going to try a lower amp fuel pump when they are available. I am still tweeking the software for cold starts but other than that I am more than satisfied with the system.I'm going to try it on the magnum but need to order a larger injector. and flash the ecu.
Bashan, you are correct this is a neat project. My trike is my hobby horse. I didn't plan on recouping my money and am not worried about fuel efficiency. I just like to tinker and try new things just to say I done it. ;D
Next projects stroker crank and then turbo


Roy

Hi Roy, So what size engine is your tiike running? I'm very surprised that you wouldn't get better fuel eff with FI. One of the main reasons most if not all cars have it now is to improve the fuel eff. And of course auto aduust for altitude and weather conditions. And while it will not provide a significant if any added top speed it should provide a smother stronger overall power band. But because it's a generic off the shelf system as you have found it does require a bit of tweeking.

The guy that did it on the 50cc had a bit of problems fitting the system in but I think that was becasuse of the small motor he was fitting it to. But in the end it sounded like he did get much better performance and fuel eff went up around 15%.

bobf....Your right these projects are not for everyone nor are they intended to be. Some people want to show a $ return for their efforts and there's certainly nothing wrong with that. But as indicated by others these things are more of a hobby then anything else. That is how I would dicribe it for you. Among other things I build and ride electric bicycles and and play with scooters/motorcycles for a hobby. I can tell you I pay a lot more money on my bicycles then I will ever invest in a scooter or cycle. Hell, I have over $1,600 invested just in battery packs.

Bob

[bobf]

Thanks for these responses. If there were some reason other than as a hobby I would sure give it a try.

And go4it, you have a good name in real life.
.

[royldoc]

I have a 50mm bbk=83.045cc according to ECU software with big valve head, A9 cam, free flow mesh air filter, and a supertrapp exhaust. I do get 90-95mpg. I have it set a little on the rich side to ensure I don't have a melt down. Otherwise I expect I would get better than 100mpg and a little more power. I figured I save about $30 a week running local errands as opposed to driving my truck, so it would pay for itself over a 10-15 week time period. I gained about 3mph up the hills I normally ride up and gained about 5mph top speed will get more when I change gears. Also this trike is heavier than a two wheel. I think on a lighter scoot the gains would be better

Roy