360 Fuel Injection

[m4]

I'm thinking about ordering a EFI setup for my 86 GW( from custom efis).Has anyone install one of these on a Grand Wagoneer?

[KYJ10]

I have one on my 360 and love it. Some people complain about waiting a month or so for delivery, but it's worth it. Mine was easy to install and easy to setup. Mine starts and runs better than my 96 car. Throttle response is just plain stupid. You just think about stepping on the pedal, and it reacts! It's real nice. Dennis

[imported_horsepuller]

I have one on an 88GW and am very happy with it. I kept as much of the emissions systems in tact as possible and went with the egr/knock sensor and later model ecm ('95). I wrote a detailed message on this in the General Discussion forum in the April '03 timeframe.

Significantly improves driveability (cold/hot starts, smooth throttle response), bumps mph a bit (15/13 for me vice the 13/11 with the 2bbl setup), and it really makes the engine hum on the highway (similar to a well tuned 4 bbl, but smoother).

You also no longer have the Jeep Duraspark ingition module blues.

[jeepjake]

I have one and unfortunately, have not had the same luck as most others. John has been sterling about trying to work out the problems, but I've had it for two years now and have only driven about 5k miles since because of drivability issues. We've tried HUNDREDS of programs, changed out the TBI, fuel pump, ignition module, etc.

Problem appears to be that I installed it on a HIGHLY modified 360 and it seems that the setup he sells works best on bone stock (or close thereto).

The throttle response from idle or stopped is crap. Takes a LONG time to get up and going.

Anyway, just another opinion, most have had good luck. I may take mine off and sell it so watch the for sale forum.

[popeye44]

OK,, i'm watching :D heheheehe..

I've been thinkin about it too.. and mines bone stock on a 74 at the moment.

[gpd]

were can we get infor on this FI unit, any web sites?

[1BDWAGN]

I think the site is www.CustomEFIS.com (http://www.CustomEFIS.com)

[KYJ10]

Mine isn't highly modified, but does have an msd ignition, edlebrock 4bbl intake, nice cam, tfi upgrade, blaster coil, and not one peice of polution, except for what his system adds. Mine runs like a top!!!

[JeepsAndGuns]

Anyone has the port efi that he sells? I'm interested in that one.

[Coop15]

I just put mine on my 91' Grand Wagoneer in july of this year. I am really pleased with the throttle response and the fuel mileage. Everything was simple to install, it took me about 3 hrs. to get everything installed.

I was also interested in the port injection, but John told me that the port injection was for more performance rather than for fuel mileage. For what I was wanting (better fuel economy, and easier starts.) the throttle body was all I needed.