best ignition timing

[88YotaTurbo]

What is the best ignition timing to run on an 1988 turbo with intake, 3" elbow back exhaust. 93 octane, Autolite plugs?
I have a dyno day coming up and I wanted to run through some pretune options

 

[CRE]

I'm not going to bother with a guess, but, for anyone else to give you a recommendation they'll probably want a little more info: what temp. spark plugs, what gap, how many psi of boost, stock HG?

 

[88YotaTurbo]

well i'll start.
spark plug is an autolite 3923 gaped to .28
want to push 14-16 psi of boost at dyno. normal psi is 10-12
i'm going to say yes it is stock HG but the previous owner said he rebuilt the motor but i'm not sure.

 

[88YotaTurbo]

can anyone answer this for a baseline dyno run? i'm looking to do it today before daylight fades. like an 1.5hrs left.

 

[bowsercake]

stock, than tune from there... I don't really understand what you are asking.

 

[88YotaTurbo]

well i've seen people running 12-14* btdc in the past. I know stock is 10*btdc. what is the advantage or any to running retarded timing?

 

[Mr. Y]

I'm running about 20* of advance at 16psi, but i have about 8:1 CR and standalone... Messing with timing on stock ECU isn't good idea, imho.

 

[Slow66]

Keep it at 10*.

 

[ians13]

Keep it at 10*.

i second that motion, just keep it stock.

 

[Doward]

Keep it at 10 degrees.

Running 14-16psi on a stock ct26? How are you getting around fuel cut?

 

[88YotaTurbo]

well i can run up to 14.5 then i hit fuel cut before I moved the afm screw all the way out from the 3/4 in from stock. 16psi mark is probably a dream but we'll see.