Delco DIS On Non DIS Engine

Post by **Holden202T** » Tue Apr 30, 2013 12:01 pm

Yeah I found with mine even at low revs it changed the timing by quite a bit!!

Post by **antus** » Tue Apr 30, 2013 12:30 pm

Yep it changes the timing, and its very inaccurate as the zero crossing is not sharp. Which makes for a rough idle compared to the right way around, if it'll idle at all. If you use this method dont put load on it until your sure its right and you've confirmed timing with a timing light.

Yortt · Post by **Yortt** » Tue Apr 30, 2013 3:47 pm

Thanks for all the reply's. I guess I have a 50/50 chance of getting it correct which are pretty good odds.

Post by **charlay86** » Tue Apr 30, 2013 4:09 pm

fortunately you are aware that it is an issue.
lol the race car that was built at my uni last year's engine wouldn't run no matter what they tried

it would crank and fire but then die.. until I looked at it a few weeks ago and noticed that the crank & sync signals had the wrong polarity, swapped them over and it fired up straight away!

Yortt · Post by **Yortt** » Fri May 10, 2013 5:02 pm

Yortt wrote:Thanks for all the reply's. I guess I have a 50/50 chance of getting it correct which are pretty good odds.

Well it would not start, same problem as indicated by charlay86, swaped the wires to change polarity fired up no problem (If i cannot win with those odds no more lotto tickets for me) now to see if it overcomes all the ignition problems I had with the standard optical distributor.
Thanks to everyone for their responses

Post by **antus** » Fri May 10, 2013 10:27 pm

great to hear

Chubs0191 · Post by **Chubs0191** » Thu Jun 20, 2013 9:28 am

What do you guys generally use as a shielded wire, a rough person suggested 2 pieces of TV coax which I'm sure would do but I'm not convinced that I'll like the look of it

Perhaps some convoluted tube will have to do

Post by **VL400** » Thu Jun 20, 2013 9:34 am

Shielded microphone cable from Jaycar or Altronics works ok, run it in some split tube too. You want the two conductors that wire to the sensor in the same cable and preferably twisted together. This improves noise immunity by being able to cancel out any noise/spikes that are common to both.

Post by **Holden202T** » Thu Jun 20, 2013 10:38 am

this is what im using on the gemini for crank trigger cable

http://www.jaycar.com.au/productView.asp?ID=WB1530

its not massively big but its a good size for whats required.

Chubs0191 · Post by **Chubs0191** » Thu Jun 20, 2013 10:52 pm

Those pin outs a12 b3 b5 d5 d4 don't appear to match up with the ground reference bypass or est on my wiring diagram is that correct?

Delco DIS On Non DIS Engine

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