Maybe it comes with the Fast, I'm not sure... Just curious to look at one in advance to see what all I am going to have to be doing. I'll obviously be running the fast in conjunction with the stock ECU so I can retain the use of all my gauges, etc. The installation would be similar to a piggyback system I assume... Let me know if any of you have info/links regarding this.

Thanks
Chuck

 

You only need electronics to manage the speedometer and the tach. The tach will be an easy interface off the FAST. The VSS could remain in the stock PCM. What other functions will you leave in the stock PCM - fuel pump control? IAC control? fan control? Any other functions? In your other post on the tranny issues, you allude to "OBD-II".... that would appear to indicate you are trying to keep the stock PCM for a number of other functions... EGR? AIR? EEC?

The other gauges - fuel, oil pressure, voltmeter, and coolant temp are driven directly by sensors, not from the PCM.

 

Ok cool... I didn't know the fuel, oil, water, and volt. gauges ran separate from the ecu. That will make life easier... Everything else you mentioned, like the fuel pump, fans, etc should be fairly easy to figure out. The main question I had, which was in regards to the wiring, was answered in the computer related forum. Fasttrackperformance.com makes a harness I guess. Still requires splicing though. So what makes that harness any different than the harness supplied by Fast?

As far as running OBD II... No that doesn't mean I am trying to retain the use of EGR, AIR, EEC, etc... I just know that I can't unplug my stock ecu, plug in my Fast, and go down the road. There will be quite a bit of cutting and splicing involved I'm sure.

Thanks
Chuck

 

Looking at the engine pictures, you've deleted the Opti. That means you will have to take fuel pump control out of the stock PCM. Once you delete the Opti, the stock PCM becomes useless, except for the speedo. What are you planning to use it for?

I run a MoTeC with the Opti as a cam postiion sensor only, and kept the stock PCM for the VSS/speedo interface, fuel pump control, and also the IAC (the MoTeC will not drive a "stepper" (stock) IAC, only a pulse width modulated IAC). I also built the engine with the idea it was going to be an emissions legal setup, with all the stuff like EGR, AIR and EEC functional. That made the stock PCM, with parallel inputs, or dual sensors, imperative. But since I've taken it off the street, I figure deleting the stock PCM and all the extraneous wiring harness material would save an appreciable amount of weight.

 

Yeah, I sat down and did some thinking this morning, and basically sorted out everything you are trying to help me sort out through the questions you're asking. IE. How am I going to do this with no opti? It'd be simple to just put an opti on there and solve all my problems as you did, but to fit the opti cover/plate on I had to cut the cam dowel down. So now I'm thinking run a complete stand alone, strip the car down, and wire it as if it were a hot rod. Or figure out a way to run a cam sync. I just need to find out if I would still need some sort of cam position sensor with the crank trigger and 8 coil packs. I'm going to try to get ahold of Joe Overton this afternoon and hopefully have it all figured out by the end of the day. We'll see what happens. But basically we're both on the same track with this...


Later
Chuck

 

You can't run 8 coils packs, or sequential fuel injection without the cam position. E'motive overconmes that limit with 4 dual-cylinder coil packs (lost spark method) and firing two injectors at a time... "semi-batch fire" I guess.

Have you looked at the setup using the FAST, eDIS and "home brew" cam position magnet/sensor?

 

Yeah, it's been a thought. We'll see what happens after I make a few phone calls...

Later
Chuck

 

one of the guys in the Pacific NW section did this last winter and i KNOW he has some do's and don'ts

I would post there and ask for Shaun or "97 Conv Ram Air"

15# D-1 install

 

Hmm, I'd be curious to hear his do's and dont's... but I've pretty much got what I'm doing figured out, so I should be fine.

Thanks
Chuck