poll: what plug gap do you run?

Beni · 07-13-2001, 02:02 PM

got results from the track...here it is...with no other changes in similar weather, opening the plug gap was worth 1.4 mph in the quarter. Here is the breakdown of my runs from my journal Im keeping. NOTE- the timing worked better at 10deg instead of 14deg (look at the mph) kind of unusual...my car developed starting problems once we fiddled with the timing, so I have to get it sorted out before I can verify it. Will be on the dyno 7/28.

6/21/01 adjust FP from 38psi to 40psi

RT .597
60ft 2.244
330ft 6.120
1/8 ET 9.203
1/8MPH 79.35
1/4 ET 14.071
1/4MPH 100.82

6/21/01 adjusted FP from 40psi to 42psi

RT .655
60ft 2.208
330ft 6.224
1/8 ET 9.348
1/8MPH 78.68
1/4 ET 14.224
1/4MPH 99.73

Opened spark plug gap from .54 to .75 (seat of pants is more low end, more responsive)

7/12/01 same as last run except .75 plug gap (similar weather) 20psi in Hoosiers

RT .551
60ft 2.273
330ft 6.133
1/8 ET 9.207
1/8MPH 79.49
1/4 ET 14.043
1/4MPH 101.64

7/12/01 back-up run

RT .708
60ft 2.235
1/8 ET 9.245
1/8MPH 78.93
1/4 ET 14.126
1/4MPH 101.13

7/12/01 Advanced timing to 14* lowered Hoosiers to 15psi (long burnout)

RT .504
60ft 2.066
330ft 5.873
1/8 ET 8.961
1/8MPH 79.10
1/4 ET 13.840
1/4MPH 100.72

7/12/01 same as above except lowered tires to 13psi (long burnout)

RT .480
60ft 2.052
330ft 5.910
1/8 ET 9.054
1/8MPH 78.54
1/4 ET 13.965
1/4MPH 100.26

Seems like it lost mph with the timing at 14*, had starter problems again and could not make any more passes

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07-13-2001, 02:02 PM	#7
Beni Registered Member Join Date: Oct 1998 Location: Jacksonville, NC(station) and Tampa FL Posts: 37	got results from the track...here it is...with no other changes in similar weather, opening the plug gap was worth 1.4 mph in the quarter. Here is the breakdown of my runs from my journal Im keeping. NOTE- the timing worked better at 10deg instead of 14deg (look at the mph) kind of unusual...my car developed starting problems once we fiddled with the timing, so I have to get it sorted out before I can verify it. Will be on the dyno 7/28. 6/21/01 adjust FP from 38psi to 40psi RT .597 60ft 2.244 330ft 6.120 1/8 ET 9.203 1/8MPH 79.35 1/4 ET 14.071 1/4MPH 100.82 6/21/01 adjusted FP from 40psi to 42psi RT .655 60ft 2.208 330ft 6.224 1/8 ET 9.348 1/8MPH 78.68 1/4 ET 14.224 1/4MPH 99.73 Opened spark plug gap from .54 to .75 (seat of pants is more low end, more responsive) 7/12/01 same as last run except .75 plug gap (similar weather) 20psi in Hoosiers RT .551 60ft 2.273 330ft 6.133 1/8 ET 9.207 1/8MPH 79.49 1/4 ET 14.043 1/4MPH 101.64 7/12/01 back-up run RT .708 60ft 2.235 1/8 ET 9.245 1/8MPH 78.93 1/4 ET 14.126 1/4MPH 101.13 7/12/01 Advanced timing to 14* lowered Hoosiers to 15psi (long burnout) RT .504 60ft 2.066 330ft 5.873 1/8 ET 8.961 1/8MPH 79.10 1/4 ET 13.840 1/4MPH 100.72 7/12/01 same as above except lowered tires to 13psi (long burnout) RT .480 60ft 2.052 330ft 5.910 1/8 ET 9.054 1/8MPH 78.54 1/4 ET 13.965 1/4MPH 100.26 Seems like it lost mph with the timing at 14*, had starter problems again and could not make any more passes