| Author | Message | ||
| david handa (Davehanda)
Member Username: Davehanda Post Number: 840 Registered: 5-2001 |
Kelly, Could you explain the process of converting and where you are sourcing the adapters? Thanks | ||
| DGS (Dgs)
New member Username: Dgs Post Number: 11 Registered: 5-2003 |
John, I understand the "bang" issue. While selecting processors for possible Marelli replacement, and whenever I look at that barn door in the CIS AFM, I keep thinking of slapping in a hot-wire MAF and junking the CIS. The hard parts are: (a) finding EFI injectors to fit where the CIS injectors go, and (b) finding the right time in the cycle to double pulse the injection, given that I don't really want to be squirting fuel when there's fire on the other side of the intake valve seal. | ||
| Kelly (Tifosi1)
Member Username: Tifosi1 Post Number: 632 Registered: 2-2002 |
I made up my mind, I hope yawl agree, but I'm going to take the cams out and put on QV rotor adapters and rotors. it's costing me about $150.00 Doing the work myself. 10 times cheaper. Thanks for eevryone's advise. kelly | ||
| John_Miles (John_miles)
Junior Member Username: John_miles Post Number: 80 Registered: 7-2001 |
On the pickups, I don't know how you'd tell phase from a flywheel sensor. You can tell when #1 is TDC from the stock sensor, but it doesn't tell you whether it's compression or exhaust. Correct. The Electromotive system is a "waste spark" system that fires each cylinder on both the compression and exhaust strokes. It has four coils with two terminals each (on either side of ground). The drawback to this, at least on the carbureted cars, is that you will occasionally get a loud "BANG!" when you're starting the car, as the ignition fires a cylinder with an open exhaust valve. You can play with the mechanical timing to minimize this tendency, but I never succeeded in getting rid of it entirely. If your car is like mine, you'll find that if you pump the gas pedal before you start cranking it, the Department of Homeland Security will raise the terror-alert level after the resulting backfire.  | ||
| Erik R. K. Jonsson (Gamester)
Member Username: Gamester Post Number: 327 Registered: 11-2000 |
I distribute the Electromotive system as well. Nice F-Chat pricing. [email protected] | ||
| Ted Gage (Tedmac)
New member Username: Tedmac Post Number: 18 Registered: 2-2003 |
Here's the URL. They do not offer a timing gear kit to fit the 308. I don't think they offer on for the other models either. My upgrade to the Electromotive is a work in progress. For my 308, we designed a cup that fits inside the front harmonic balancer/pulley assembly and bored the timing gear for clearance to the bolt. Also changed the bolt to one from Metric and Multistandard Inc. to that has a smaller head (the standard bolt requires a 36 mm. socket). Hope this helps. After we finish, I'll ask my machinist if he's interested in making more parts. He has the design on CNC. http://www.electromotive-inc.com | ||
| "The Don" (Mlemus)
Senior Member Username: Mlemus Post Number: 5030 Registered: 8-2002 |
I just changed out my points to the dual Crane XR700. Runs like a champ. $230 was better then $1500. | ||
| Philip Airey (Pma1010)
Member Username: Pma1010 Post Number: 257 Registered: 7-2002 |
Kelly, Don I have Nick's ignition system (actually an Electromotive HPX unit). Runs about $1500 and you can do away with the distributors, rotors, coils, expensive plug leads etc. As others have noted, the toughest part of the install is the O ring on the crank pulley. Nick's kit includes the tach correction module and the other bits and pieces you need for something pretty close to plug and play and he's very helpful on advice pre-during and post install. The has some limited tunability and enables you to replicate the ignition curves of the injected cars (or a variant of such) on a carbed car and, with the added MAP sensor allows some further tweaking. After some initial "tuning" (setting the ignition settings to "optimal"), and a revisit when adding the MAP sensor I've not touched it. Runs and works like a charm. Given it runs a more powerful, longer duration spark, plugs are typically gapped a bit wider than stock and unless you are WAY out of the heat range on plugs, they wont foul. As Nick advises, get the carbs dialed in first so you know it is running well before you put on the direct fire. Oh, for me the decision was easy after adding up the cost of points, rotors, caps and a distributor service. A bigger one off hit to the wallet, but as I said, after that you foget about it. Finally, there are other systems out there with optimal spark generation etc. Search the archives. You'll see others are pretty passionate about there stuff. Don, if you are Chicago-area based, Giovanni sells a set up which is supposed to be worth investigating and is quite a bit cheaper than Nick's. HTH | ||
| DGS (Dgs)
New member Username: Dgs Post Number: 10 Registered: 5-2003 |
Kelly: Don't ask me, Charles' profile says "1980 308gtsi V-12". I was curious what kind of car he added pickups to. I've heard of doing V12 upgrades to 308s, but I don't know what kind of V12 would fit. Personally, I'd have thought it would be easier to just trade up to a 512BB. On the pickups, I don't know how you'd tell phase from a flywheel sensor. You can tell when #1 is TDC from the stock sensor, but it doesn't tell you whether it's compression or exhaust. I've been looking at programming a modern mil-spec computer to replace the Marelli. (I don't think my MP sensor is working.) In the age of "if it flys, it dies", we can do much better than an old Italian computer designed when desktop computers were Apple "Lisa"s or IBM XTs. | ||
| Kelly (Tifosi1)
Member Username: Tifosi1 Post Number: 629 Registered: 2-2002 |
Charles, Where did you get the electromotive from. DGS, Great V12 HUH. Kelly | ||
| Don Norton (Litig8r)
Junior Member Username: Litig8r Post Number: 141 Registered: 6-2001 |
Nick the sponsor has a system that I was looking at: http://www.nicksforzaferrari.com. | ||
| Mark Eberhardt (Me_k)
Member Username: Me_k Post Number: 523 Registered: 5-2002 |
As I understand it, the electromotive system can only read an electromotive pick up. They're pretty good though. I'm using a Haltech to do the DIS and EFI and I've been very happy with it. It can read the stock pickups, but only if you keep the distributors because there is no home signal to tell it where #1 TDC is and you can't add one because you already have 2 pickups and that is all it will accept. I mounted a ring with magnets in it on the back of the fly wheel and put a haltech pickup into one of the OEM pickup mounting holes because I didn't have room on the front with the blower dive pulley in the way. | ||
| DGS (Dgs)
New member Username: Dgs Post Number: 7 Registered: 5-2003 |
The 328 (and presumably all of the Marelli electronic ignition cars) already has magnetic pickups on the crank -- TDC and RPM (144 pulses per rev, I think ... can anyone confirm?) What kind of V-12 did you put in your '80 308? | ||
| Charles I Claussen (Atlantaman)
Junior Member Username: Atlantaman Post Number: 179 Registered: 3-2002 |
I just installed an Electromotive---awesome!! The only hard part is installing the toothed timing sprocket on your crank pulley--that takes a good machine shop--call me if you need help | ||
| Kelly (Tifosi1)
Member Username: Tifosi1 Post Number: 628 Registered: 2-2002 |
Please let me know, i'm lookin at it now. kelly |