EFI for 1k, programable |
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EFI for 1k, programable |
r_towle |
Mar 27 2011, 03:00 PM
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#1
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Custom Member Group: Members Posts: 24,574 Joined: 9-January 03 From: Taxachusetts Member No.: 124 Region Association: North East States |
Does it exist yet?
Ideally, 1k for ITB's, EFI and harness. Anyone...and no Megasquirt please.. Looking for something to start with...then like any good drug, get hooked and pay more to play. Rich |
914forme |
Mar 28 2014, 10:56 AM
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#2
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Times a wastin', get wrenchin'! Group: Members Posts: 3,896 Joined: 24-July 04 From: Dayton, Ohio Member No.: 2,388 Region Association: None |
You could also use old 80s GM EFI, the port injection stuff, is simple, a MAP, TPS, AIT, CTS, and a feed for the trigger off a dizzy. A few hours at a Pick and pull you have your stuff. Another couple hours of dyno time with a person that knows how to program this stuff and your done. LOL thats as cheap as it gets.
Or build your own intake, with single TB, is by far the easiest. I have used Motorcycle TBs off a Ducati 1200cc units. You have to get the manifold spacing right. Cut weld tip, or build custom manifolds, not as had as you might think. You can do it out of fiberglass and carbon fiber. With a little bit of foam as the core. You design them form the inside out. Build the runners out of foam, build the mounts out of Al plate, drill all our holes etc... Glue the runners to the plates, and then wrap the foam with packing tape. And epoxy, and glass them up. a couple layers of fiberglass then wrap in carbon. Very lite part, and not bad if you want to build a custom intake. Yhn gut the foam, its a lost casting method. Great for one off parts terrible for production. If it was me, an your dead set of ITBs. I would go motorcycle, custom intake, and then use a Microsquirt. They are rugged prebuilt, limited, but pretty nice package. Or if you want to learn, efi your lawn mower or other small engine. a four stroke 2 cylinder engine will give you all the same issues as your 914 engine. In some ways even more. And if you blow it up its not as bad as dumping a type-4 engine. Or get a cheap beater car that is EFI, rip out the factory ECU, and install, Micro, Mega, SDS, HalTech, and find it used. Megasquirt even makes a PnP unit, which is not bad way to learn into a factory engine. |
0396 |
Mar 28 2014, 07:39 PM
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#3
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Advanced Member Group: Members Posts: 2,046 Joined: 13-October 03 From: L.A. Calif Member No.: 1,245 Region Association: Southern California |
[quote name='914forme' date='Mar 28 2014, 09:56 AM' post='2017248']
You could also use old 80s GM EFI, the port injection stuff, is simple, a MAP, TPS, AIT, CTS, and a feed for the trigger off a dizzy. A few hours at a Pick and pull you have your stuff. Another couple hours of dyno time with a person that knows how to program this stuff and your done. LOL thats as cheap as it gets." First of all, I have next to no real knowledge on this modern FI stuff. Regards to the above suggestion....that's exactly what I'm trying to do now. I've been talked into trying to adapt a Honda Civic ODB1 ECU to run on my new type 4 engine. I've search and found out that Mark produces a "trigger " wheel for the fuel injection. If he reads this posting, I have a question for him. Can I simply utilize that trigger to communicate / fire off the injectors? You see...I do mean I have no knowledge. Thanks for any future input.......sorry as my finger was too fast...thus the double post. |
Mike Bellis |
Mar 30 2014, 10:26 AM
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#4
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Resident Electrician Group: Members Posts: 8,345 Joined: 22-June 09 From: Midlothian TX Member No.: 10,496 Region Association: None |
First of all, I have next to no real knowledge on this modern FI stuff. Regards to the above suggestion....that's exactly what I'm trying to do now. I've been talked into trying to adapt a Honda Civic ODB1 ECU to run on my new type 4 engine. I've search and found out that Mark produces a "trigger " wheel for the fuel injection. If he reads this posting, I have a question for him. Can I simply utilize that trigger to communicate / fire off the injectors? You see...I do mean I have no knowledge. Thanks for any future input.......sorry as my finger was too fast...thus the double post. Brad and I talked briefly about a setup like this. Bottom line... You can use the EFI off any engine on a 914 IF you can duplicate all the sensor input/output. This does not mean it will run well. Once you duplicate sensors, you are at the mercy of the ECU fuel map. Most likely it will run but will not be matched to the engine you are putting it on. Early ODBI systems have almost no fuel correction. A 2005 or later ODBII system with WB O2 would correct better. But is is still not setup for an air cooled engine. If you want to play with OEM EFI systems, pick one with a big aftermarket support group. Honda, Subaru & Toyota have great support for flashing ECU's. And web sites like this one for technical info. The newer the ECU, the more support there usually is. Early ECU's use a ton of vacuum lines to make everything work and smog correctly. I would stay away from 1990's ECU's except GM. I could take the Audi/VW ECU (2000 MY) I have and rework it for a T4 but the cam and crank signals would require some creative internal modifications. All the other sensors just bolt on somewhere. |
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