Jump to content
HybridZ
Sign in to follow this  
evoog

timing issue

Recommended Posts

Car:

260z with s13 blacktop sr20det

-stock t25

-freddy intake

-front mount intercooler

-megan racing bottom mount exhaust manifold

-mines ecu 62

Ignition timing can not be set to 15 btdc. The car runs good at about 25 degrees btdc with the cas in the middle lined up, but when the timing is set to 15btdc(the cas has to be rotated left and almost maxed out), the car runs like crap, no throttle response, and just falls flat on its face. the car has pretty much ran at 25 btdc for a while now, just decided to see if I can dial her in.

 

Pulled the valve cover and mechanical timing looks ok to me, the crank is set to 0(second mark from the left), the intake cam lobe for cylinder 1 is <, the exhaust cam lobe for cylinder one is like  >, the dowels are at 10 o clock and 12 o clock, the cas is lined up with the dot. The car does enter into ignition timing mode and its idle is set to 800. 

 

Dont know really what to do. Dont know if the ecu has something to do with this, or what, searching for any ideas. Thought maybe the cams are a tooth off, but seems like rotating the cams one tooth would set the timing off????

 

12017488_1051453661545810_1141076097436710505003_1051453658212477_3586826504224211222939_1051453654879144_4988636000786512027321_1051453651545811_45695770246791

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.

Sign in to follow this  

×
×
  • Create New...