Questions about Ignition Step Retard

Adam Hopkins · Post by **Adam Hopkins** » Fri Nov 30, 2007 7:48 pm

I am wondering what settings are you running for your ignition retard? I always used around .75 per psi degrees in cr***, but I never used the step retard because of the timing issues in cr*** and i did not trust it. My setup is a b20/vtec(B16) with a pt67 turbo. Thanks in advance.

Post by **calvin** » Fri Nov 30, 2007 8:25 pm

timing should be done on the dyno. MBT last resort use a detcan to hear the knock but don't push it

Adam Hopkins · Post by **Adam Hopkins** » Fri Nov 30, 2007 8:44 pm

Yea I know that final timing should be done on a dyno, and i have a whole day apointment on sunday, but I am just looking for some good safe numbers to get a good start on my map. Like I said in another thread I am having some ignition break up and im jsut looking for some good refrence points.Thanks again.

xenocron · Post by **xenocron** » Sat Dec 01, 2007 7:57 pm

Typically, if you disable ignition adjustments with eCtune, I find you need to use a LOT more timing advance than with Crome... I typically get my stock vac/boost threshold number peachy on the dyno and then do a 1 degree retard and do a pull. Next run set to .9 and see the effects...continue on there until you stop making power.

Adam Hopkins · Post by **Adam Hopkins** » Sat Dec 01, 2007 8:15 pm

Ok so you are a fan of doing retard per psi instead of doing a step retard? Thanks for the replies.

xenocron · Post by **xenocron** » Sat Dec 01, 2007 8:58 pm

I do a linear retard until I see where the car likes to be... Then the \"tooner\" in me kicks in and I do my thing...