Custom EFi kit using Honda ECU

[Pinnacle Tuning]

This is my first post ever on the Samba, so bare with me.

I started designing custom efi systems about 8 years ago for different cars. I just recently did one for a Customers VW. I will post pictures of what I did and take some questions about the system if there is any. Hope you guys like it as much as I enjoyed making the system.

I don't have a lot of information on the internals of this engine. The owner purchased a whole 67 bug that came with engine and efi system. From what I was told the engine was a 2180 with a fk8 cam. Again I have no idea what else was inside the engine and honestly not even sure if the given information was correct.

When I was called to come look at the car. The shop that was doing all the work had already installed the engine and trans into the Baja bug. The car was not running and they could not get the car started. The current efi setup was a HAltech f10x and a MSD digital 6al. They had already changed the msd Unit. The engine had spark but no fuel. When I checked the setup I seen that the ecu had no response. I couldn't even connect to it and it didn't have any signals coming out of it. Being that the Haltech was over 10 years old and still ran on DOS operating system. I recommend that they run one of my efi setups which does fuel and spark all in one small package. We came to an agreement on price and off I went to build the system.

I started by removing the efi and ignition.

Then I started making the harness

Then I machined the adaptor to mate the Honda distributor to a stock vw distributor

Then I also built the ecu. This a stock civic ecu with a Demon2 hardware which allows me to make changes on the fly. I use a program called, Neptune to edit the Honda efi code. You can find more information about the program here. http://hrtuning.com/neptune-rtp/

The I bench tested the harness and ecu. Everything was working.

Then when all was done I could start mating the harness to the car.

Here is a few of the harness completed. You can also see the distributor in its final location. The tps sensor is the one that comes with CB Performance throttle body's. Which just a gm style tps sensor. The intake air temp sensor is a stock Honda unit I mounted near the driver side filter. The coolant temp sensor is mounted with a t fitting to where the factory oil pressure switch goes. Then last the map sensor is using a vacuum supply hose from both intakes.

I also like to mention that the ecu controls the oil cooling fan and the fuel pump.

Here is a closer look of the Honda distributor.

The 1000cc ev14 injectors pull double fuel duty. The car currently runs on e85 but since it has a flex fuel sensor integrated into the fuel system it can also run regular pump gas without the owner having to change anything. The fuel and timing changes automatically.

Here she is complete

I have a couple videos of the car using the two step that works off the clutch switch and of the car on the dyno but I have yet to figure out how to post videos to this sit. Thank you for looking hope you guys wnjoy as much I liked building the system.

[Pinnacle Tuning]

Not sure if this is going to work but if it does, this is the two step at 3200 rpm. You can retard the timing and add fuel during the two step.

[slalombuggy]

I don't see an O2 sensor, what do you control fuel with? Did you remap the cold start fuel to allow for the oil not heating up as quickly as coolant does?

Not to rag on your project, I think it's a great idea, but why use that POS distributor? I can swap those out in under 10 minutes after changing dozens of them. The ignitors fail constantly in these things.

brad

[Dale M.]

Great project...

But going to crank fire and Megasquirt would have been a whole lot simpler and probably less expensive... And the path has been cleared by hundreds that have gone before you...

Dale
_________________
“Fear The Government That Wants To Take Your Guns" - Thomas Jefferson.

"Kellison Sand Piper Roadster" For Street & Show.
"Joe Pody Sandrover" Buggy with 2180 for Autocross (Sold)
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All suggestions and advice are purely my own opinion. You are free to ignore them if you wish ...

[Pinnacle Tuning]

[mcmscott]

Who mounted the breather box? Some one who doesn't understand gravity?
_________________
There are no stupid questions, only stupid people,

68 Ghia
67 T-1
65 Notch
02 Mexican beetle
74 Thing
15 Long travel rail
07 Nomad
05 f-250

[Chip]

I had at one point considered doing very similar, using Hondata or similar. Nice to see someone else thinking along the same lines. My biggest hangup was always the ignition. Looks like you solved that one. Well done! I did end up buying an AEM 30-1050 a few years ago, didnt end up going that route in the end either. Might use it on a run stand or something one of these days.

[Pinnacle Tuning]

[clonebug]

[Pinnacle Tuning]

[Pinnacle Tuning]

[gprudenciop]

[Chip]

[Pinnacle Tuning]

[Pinnacle Tuning]

[Chip]

[Gavey]

What is the price on your adapter for the Honda distributor