Jump to content
Jacky Fung

Ford Cosworth Escort Trigger

Recommended Posts

Dear all,

I do have experience in tuning B-Series Civic and COP. Now I have a project on a Cosworth Escort RS.

I have a trigger problem of it. I'm using stock distributor and crank sensor as Trig 1 and Trig 2. And I'm messed up with the setting. Do I still need adjust trigger offset and timing gun to adjust offset even have a crank sensor? I can start engine on around 110 degree, but it seems not the correct offset. Would you give me some hints? and I cannot find any video on timing w/ a cosworth. 

Thanks for your kindly help!

Jacky

Share this post


Link to post
Share on other sites

If it is the Weber-Marelli trigger with the 4 tooth on crank, you use the "RS500"-trigger in software. Timing should be pretty spot on.

Share this post


Link to post
Share on other sites

As bsh mentioned above, the RS500 trigger pattern will work fine with stock distributor/crank sensor setup.  The important thing is to make sure the TDC mark on the dizzy lines up (roughly) with the rotor arm at #1 TDC on the firing stroke, as there are 2 teeth on the distributor trigger and the ECU will have problems with the phase otherwise. 

If the distributor has never been removed then the phase sensor connector should be closeish to the cam belt (Stock position).  standard offset should work but always worth checking with a strobe light. 

What ECU are you using?  If  you have triggerscope, then post the llg file here. 

If your are COP then the rotor/HT angles won't matter (but the phase position kind of does), if you are using original ignition then more care will need to be taken over the firing order and relative positions of the rotor > HT leads.

HTH,

  RIchard.

Share this post


Link to post
Share on other sites

Thanks for you guys information.

I'm using Storm

Attached w/ some setting and scope diagram for your reference. I cannot start at 0 degree, I can start at 200 but seems miss 1 of the cylider.

Jacky107086391_Trigger2.jpg.3949aac72cb565339c3a8f5729281a47.jpg1088252016_Trigger2Table.jpg.f00827259e6e994f36b86ddb4c3d113d.jpg1603458595_Trigger1.jpg.931cf0a519993ca74f3b216d3b1a3aab.jpg1052138496_Trigger1Table.jpg.3be4db9823463c22621f70f737b957c0.jpg50656437_TriggerScorp.jpg.a9109959008fe896ff67a7f6960c1c43.jpg1710782426_TriggerMode.jpg.1a8510ae9c19974c10643c8723b234d3.jpg1770207056_TriggerCalibrate.jpg.5edd84f2ed59e45301df36d04f2e0873.jpg

Sorry the pic order was messed....

Share this post


Link to post
Share on other sites

The distributor sensor is wired incorrect polarity, you need to swap the +/- wires. Im not sure if that would be enough to cause your offset to be wrong but start by fixing that first.

Share this post


Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...

×
×
  • Create New...