Fuel injection

[Grassykid08]

i'm thinking very seriously about fuel injection for my new 360 magnum headed turbo project has anyone heard anything about the Professional Products PowerjectionIII kit and if not does anyone have any input or reccomendations thanks.

 

[MadScientistMat]

Disclaimer: I work for an EFI seller that markets a different system, so I am not exactly an unbiased source.

I've seen the Powerjection III at PRI and talked with the developer. I've also heard feedback from people who have used earlier devices from the same company. From a packaging standpoint, it's quite impressive, and the wiring is very simple unless you want ignition control. Computer controlled ignition can give you pretty good gains in power and drivability if you get it dialed in on a good dyno, but can be a pain if you aren't planning on dyno tuning it. (There's no self learning ability for spark maps.) My experience with TBI type systems has been that the fuel distribution is about on a par with a carb.

From what I've heard from people who have used the self-learning feature, it seems to work best with mild cams and small exhausts, but luckily, it doesn't lock you out of hand tuning (unlike at least two other "easy" system I know of, and locking you out of that can turn the system into the EFI equivalent of a carb with the metering holes drilled into the body instead of on removable jets).

I'd say it is overall a decent entry-level EFI system, with its target audience being someone who wants a straightforward street car without too much hassle, and doesn't need the ECU to be loaded with features.

 

[inkjunkie]

anybody know anything about http://www.mass-floefi.com/, i know it uses a ford ecu and sensors with a gm style mass air meter. i have played around in the past with fords wiring (i put a fuel injected 4.0 where a 2.9 carb was), actually did this swap a few times and know that the wiring is not hard to deal with. also like the mass air aspect, but beyond that????

 

[wireweld]

anybody know anything about http://www.mass-floefi.com/, i know it uses a ford ecu and sensors with a gm style mass air meter. i have played around in the past with fords wiring (i put a fuel injected 4.0 where a 2.9 carb was), actually did this swap a few times and know that the wiring is not hard to deal with. also like the mass air aspect, but beyond that????

Have on my motor and have no complaints yet.

 

[MadScientistMat]

anybody know anything about http://www.mass-floefi.com/, i know it uses a ford ecu and sensors with a gm style mass air meter. i have played around in the past with fords wiring (i put a fuel injected 4.0 where a 2.9 carb was), actually did this swap a few times and know that the wiring is not hard to deal with. also like the mass air aspect, but beyond that????

Depends on what you're doing with it. Their system only applies to V8s (I saw a similar post on slantsix.org, so I wanted to check what you're up to) because they're using a 5.0 Mustang ECU. They generally fire up and run out of the box, but you're not going to get a canned tune that will get you as good performance as a tune set up for your engine, whether you go with a speed density or mass air flow ECU.

Their MAF is a bit of an interesting one - it's not a recycled GM part, and they've done a pretty clever job at packaging it. I've also got to give them credit for the shear variety of port intakes they offer.

 

[inkjunkie]

Depends on what you're doing with it. Their system only applies to V8s (I saw a similar post on slantsix.org, so I wanted to check what you're up to) because they're using a 5.0 Mustang ECU. They generally fire up and run out of the box, but you're not going to get a canned tune that will get you as good performance as a tune set up for your engine, whether you go with a speed density or mass air flow ECU.

Their MAF is a bit of an interesting one - it's not a recycled GM part, and they've done a pretty clever job at packaging it. I've also got to give them credit for the shear variety of port intakes they offer.

just a random thought....but after driving fuel injected vehicles for a while would like to consider an injected "toy"......

what i am hoping is for a somewhat mild mannered but big cube stick shift car, something that will be street driven with an occasional trip to the dragstrip.

 

[MadScientistMat]

What's your budget for it like? Not just money, but time and energy. Is it something you want a quick bolt on and go package that works OK for, or something where you are willing to put in a ton of effort but get rewarded with a system that works every bit as well as a new factory fuel injected car? Most of the systems mentioned in this thread tend towards the first category.

 

[inkjunkie]

thanks for the input...i know this is probably a loaded question seeing as how you have a disclaimer about your employment, but any suggestions??

thanks
doug8)

 

[MadScientistMat]

Sure, I could come up with something on just about any budget. I'll toss out three different ones that I could see working well here.

The system I sell is MegaSquirt - it certainly does get used in your sort of situation. Its biggest high points are a low price and a lot of tuning features. Biggest drawback is a fairly steep learning curve; it can be on the "takes a bit of fiddling to really get it dialed in" side. You'd need to pair the MegaSquirt electronics with a manifold and some other parts from a different supplier, or fabricate the parts.

The Professional Products / Retrotek Powerjection system mentioned earlier falls into the "simple to install" category at a low price. It would probably get my vote if you wanted a complete, turn key package at a very low price and are not looking for a 100% American system. While they recommend using a wideband and self learning programs for most of the tuning, it doesn't lock you out of tuning by hand either, which is a good point over some other "easy" systems that can turn very hard if something goes wrong. Down side, it is a TBI, and our experience has been that these don't have the same mileage improvements as multiport. TBIs don't give up much in power or drivability though.

If you're looking for a more expensive turn key package, my vote would go to Edelbrock. They are kind of a winner by default here as the sell the only complete, turn key, multiport fuel injection package with all new parts out there for your car that I'm aware of, but they've got a very good setup. The ECU is a stripped down EFI Technologies unit (they usually build really high end stuff, like for Indy Cars), they buy their fuel pumps from a company that normally builds military and aircraft parts, and everything else in the kit is top notch too.