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Topic: 1981 Corvette ignition timing BTDC

in Forum: C3 Engines

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1981 Corvette ignition timing BTDC (1/4)
4/4/08 8:05pm

malo68
Former Member
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Providence, RI - USA

Vette(s):
1981 Corvette

Joined: 3/1/2008
Posts: 26

Could anyone out there tell me the correct ignition timing degree for a 1981 (BTDC)? My sticker is not in the engine compartment and do not have a manual on hand. I'd appreciate it. Thanks in advance, George

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1981 Corvette ignition timing BTDC (2/4)
4/5/08 7:36pm

dwright
Former Member
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Victor, NY - USA

Vette(s):
2004 Commemorative Edition Coupe, Auto w/HUD. 13K miles in 2015. Sold 1982 Red Coupe

Joined: 7/12/2004
Posts: 6841

I guess the guys with the manuals are not working the weekend.

Stay tuned. They will be here soon.

My guess is 6 degrees, but that is strictly a guess.

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1981 Corvette ignition timing BTDC (3/4)
4/5/08 7:42pm

Adams' Apple

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Duncanville, TX - USA

Vette(s):
#1-1974 L-48 4spd Cp Med Red Metallic/Black deluxe int w/AC/tilt/tele./p/w-p/b/ Am-Fm/map light National/Regional/Chapter NCRS "Top Flight" #2-1985 Bright Red/Carmine Cp.L-98/auto Member: NCRS, NCRS Texas, Corvette Legends of Texas

Joined: 11/8/2003
Posts: 20201

I'mma thinking it's 6 too...might be 8. I'll have to dig around to see if I have the info here. Perhaps another member will have it handy.

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Joel Adams
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1981 Corvette ignition timing BTDC (4/4)
4/6/08 5:22am

Sarge81

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WEST SENECA, NY - USA

Vette(s):
1981 Blue Ice Met. w/pearl ghost flames TKO500 5speed. LS1 Swap 3.45 Dana 44.

Joined: 12/3/2001
Posts: 2379

I went out to the garage this morning and looked at the emission sticker on the old OEM hood.

It listed 6 degrees @ 700 rpm - manual trans.

According to the label. You need to unplug the 4 wire connector at the distributor, set the timing, then reconnect it.

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TKO500 5 spd.

3.54 Dana 44

'69 "N11" Sidepipes
Borgeson Steering Box
Born 8/1981
Sequence #3975

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