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It works really well, and you gain an amazing amount of control over the ignition. It's very easy to program the ECU to control the ignition like no distributor can. I used wasted spark because it's very efficient and relativly inexpensive. It also adds a slightly different exhaust note. Of course, without a distributor, you need something to drive the oil pump. I had an old distributor lying around that I took apart. |
Bob
I was doing some research on a distributorless ignition system for my 302. Can you buy a replacement for the distributor to drive the oil pump? What available? Coach has a 408 that may needs a distributorless system. He has a Comp cam but Comp made a few of their cams out of very hard blanks. Thus any distributor gear he uses is eat up by the cam gear. Any suggestions? Dimis, sorry for the side track of your thread. Dwight |
427 Hilborn manifold converted
http://www.clubcobra.com/forums/pict...d=7422&thumb=1 http://www.clubcobra.com/forums/pict...d=7423&thumb=1 http://www.clubcobra.com/forums/pict...d=7424&thumb=1 http://www.clubcobra.com/forums/pict...d=7426&thumb=1 Insert Photos and Images
Insert Photos and Images Insert Photos and Images Insert Photos and Images Art Chrisman converted a Hilborn mechanical with a Hilborn carabine electronic system. The stainless steal lines are vavum lines that run to a common block. |
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Comp Cams supposedly has a composite gear that should work. If it eats that one too, you can either replace the cam shaft or use an external belt driven oil pump. |
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1) I don't really see it as a hijacking, but more evolving the discussion to a conjoining topic. 2) The info and knowledge is relevant and appreciated. & 3) I'm not that precious... ;) |
Dimis
Thanks Bob the composite gear lasted 13,000 miles and three teeth broke off. Had to called a tow truck to get us home. Lunati make a new steel gear, just came out this year, it's the lastest and greatest but it only fits stock distributors not the MSD. Coach does not want to change the cam but I think he will have to. He has been talking to Keith Craft, Comp, Lunati and MSD about the problem. For now it's a new composite gear. If anyone is using a Comp cam in a 351W motor that was manufacted in 07 -08 I would pull it and check. Some have failed within 3,000 miles. Dwight Dwight |
The new MSD I got for Rons 351 came with a steel gear and they are available separately.
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redmt
this batch of Comp 351W cams eat up steel, brass and composite gears!!!! Dwight |
I was sort of jumping in and out of the thread and wasn't following it too closely.
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If it's eating iron and steel gears, then I would look to how it's installed on the distributor. There is a spec dimension on how the gear should be installed, you can't just line the holes back up and put the pin in. Roller cams are either an austempered core, which requires an iron gear, or they're a steel core, which needs a steel gear, composite, etc. |
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On gears: I used to think that the Billet steel (mech & hyd roller) cams were alot harder than the "Cast" cams. But the opposit is the case. On billets you should use softer gears like composite or bronze. On cast cams: steel/ iron gear. It has always worked for me.....? RS |
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But, if it were my engine, I'd get rid of the cam. Since it was not manufactured properly, it's always going to be a problem. It will probably eat the new MSD gear, too. For reliability reasons, it would have to go. You're probably talking about $300 and one afternoon's work. |
Looking at what MSD gears are available for the 302, all are the small .466 dia and some the large .531"
Is there a third, larger diameter MSD? When I changed the distributor for a OE cam phase sensor, I first ordered a Comp .466" gera, which did not fit the CPS.... The shaft was 0.531 diameter, so I had to order in another one.... |
i have a billet cam, and the maker said i could use anything on the distributor i wanted.
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