NSW Corvettes
Technical Tips => Engines - Carbies - Exhausts - Dissys => Topic started by: anychevy on April 01, 2012, 05:40:02 PM
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66 327 300 with mild cam and original Holley
Initial timing set @ ~ 8○ BTDC with total mech. @ ~ 28○
Idle mixture 3 turns out on both sides (oh my eyes) Dwell 35○ :banner:
Reset inital to ~ 16○ which now has the total @ ~ 36○ WO vacuum
Dwell now set @ 30○ idle mixture 1-1/2 turn out each.
Runs alot better. :rolleyes:
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Bubba certainly gets around, so he's probably used his monkey wrench, chisel and lump hammer to fine tune your engine at some stage.
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Bubba certainly gets around, so he's probably used his monkey wrench, chisel and lump hammer to fine tune your engine at some stage.
The retarded timing may have been poor California fuel (or he just went by the book) but there's no excuse for such a rich idle :rolleyes:
Tuned by ear maybe ?
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Tuned by ear maybe ?
Yep, tin ear.
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66 327 300 with mild cam and original Holley
Initial timing set @ ~ 8○ BTDC with total mech. @ ~ 28○
Idle mixture 3 turns out on both sides (oh my eyes) Dwell 35○ :banner:
Reset inital to ~ 16○ total mech. now @ ~ 36○ Dwell @ 30○ mixture 1-1/2 turn out each.
Runs alot better. :rolleyes:
16Deg total advance seem a little light to me
is that mechanical only and not including vacuum
and dwell angle I would think 31/34 degs
at 36 deg you compromise the coil saturation time
and you introduce other problems
personally I would think about fitting a MSD distributor
with an 6AL controller
you will have far less problems and better advance control
and if you wire it up correctly you can have a built in anti theft devise.
But nothing will defeat a tilt tray.
Bfit
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16Deg total advance seem a little light to me
is that mechanical only and not including vacuum
and dwell angle I would think 31/34 degs
at 36 deg you compromise the coil saturation time
and you introduce other problems
personally I would think about fitting a MSD distributor
with an 6AL controller
16 initial WO vacuum and 36 total WO vacuum (sorry for the confusion)
But this is just a guess, as I don't have a dial back light and I'm just going off the the timing tab.
At the moment the inital is at the very end of the scale on the tab and total is about 20○ after that.
I've got to put some timing tape on the ballancer to get it right.
Later, I'll probably install a Pertronix ignitor III instead of the points and keep it looking stock.
At the moment, I'm just getting to idle and run o.k.
I have no idea what cam is in it, so I'll probably have to recurve the dizzy by trial and error as well.