Timing Question
Timing Question
I am haveing to set my timming on my TPI swapwd into a Nova. I know that it has to be set with the ESC unhooked and set at 6deg. My question is what if i set it at say 10deg will the computer know the difference? or will it act the same way it would at 6deg.
Junior Member
Joined: Mar 2006
Posts: 84
Likes: 0
From: west palm beach fl
Car: 1989 IROC
Engine: L98
Transmission: 700R4
Axle/Gears: BORG WARNER /3:70
Re: Timing Question
the computer adjust timing some what by itself. you still want the base timing set correctly. try 8 degrees and see how it idles and revs up. then try 6 degrees and see if it run better, while the est is disconected.
Supreme Member
Joined: Jan 2003
Posts: 2,133
Likes: 4
From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: Timing Question
Changing the base timing without updating the ECM will affect everything equally across the board which may not be what you wanted.
Re: Timing Question
what i am basically asking is does the computer know that it should be set at 6deg. and if it does if i put at say 10deg will computer try to pull it back to 6 or leave it at 10 as the baseline.
Supreme Member
Joined: Jan 2003
Posts: 2,133
Likes: 4
From: Houston, Texas
Car: 88' IROCZ
Engine: 388 TPI Motown 350 Race block
Transmission: 700R4
Axle/Gears: 2.77
Re: Timing Question
Yes it knows it's suppose to be at 6°, but can't change it on it's own, but it can change it's operating parameters and save them as a relearn I.e. where it use to retard 10° for knock, now it will pull even more.
Supreme Member
iTrader: (20)
Joined: Aug 2007
Posts: 1,111
Likes: 1
From: chicago
Car: 87 GTA
Engine: 385 sbc
Transmission: 700r4
Axle/Gears: 2.73 posi
Re: Timing Question
I have an 87 transam 305tpi that I set to 8deg, ran a little better ,then set to 12deg and this was to much, reset to 10 deg and it runs great . There is an article on the main page about running at 10 adv and unplugging the egr with good results.
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Member
Joined: Sep 2007
Posts: 184
Likes: 0
From: Marshall, TX
Car: 1989 IROC-Z28
Engine: 5.7 TPI
Transmission: 4-speed automatic
Axle/Gears: 2.77
Re: Timing Question
how is it that you set the timing once the ESC is unplugged? do i adjust it by turning the distributor or do i do something else?
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