Lingenfelter L650172012 Lingenfelter Camaro ZL1 Air Intake Duct 2012 v1.1 - Manual (Page 7)

Page 6.
Table 1 - belt length and idler pulley diameters required for di
fferent LSA
supercharger pulley and damper pulley combinations.
Crank Pulley
PN
(Crank only OD%)
Supercharger
Pulley
Supercharger
Pulley PN
Belt
Belt PN
Upper Idler
Lower Idler
Idler Bracket
(PN)
Pulley Ratio
Total OD%
SC Speed @ 6500 RPM
stock 7.8”
(L220646509)
-
(0%)
stock 3.0”
-
stock 1680mm
12628026
stock 90 mm
stock 70 mm
stock
2.6
N/A
16,900
2.55” press-on
L220030709
1655mm/65.2”
8PK1655
3.1
18%
19,900
2.55” 10 bolt
L220300709
1655mm/65.2”
8PK1655
3.1
18%
19,900
2.38” 10 bolt
L220310709
1643mm/64.5”
K080645
3.3
26%
21,300
8.25”
L220060709
(6%)
stock 3.0”
-
stock 1680mm
12628026
stock 90 mm
stock 70 mm
stock
2.8
6%
17,900
2.55” press-on
L220030709
66.0”
K080660
stock 90 mm
3.2
25%
21,000
2.55” 10 bolt
L220300709
66.0”
K080660
stock 90 mm
3.2
25%
21,000
2.38” 10 bolt
L220310709
stock 1680mm
12628026
LPE 100 mm, 0.350” spacer
,
M10x1.5x60mm cap head screw
3.5
34%
22,500
8.66”
L220070709
(1
1%)
stock 3.0”
-
67.5”
K080675
stock 90 mm
stock 70 mm
stock
2.9
11%
18,800
2.55” press-on
L220030709
67.0”
K080670
3.4
31%
22,100
2.55” 10 bolt
L220300709
67.0”
K080670
3.4
31%
22,100
2.38” 10 bolt
L220310709
-
-
3.6
40%
23,700
9.17”
L220170709
(18%)
stock 3.0”
-
67.5”
K080675
stock 90 mm
stock 70 mm
LPE
(L220636509)
3.1
18%
19,900
2.55” press-on
L220030709
67.0”
K080670
3.6
38%
23,400
2.55” 10 bolt
L220300709
67.0”
K080670
3.6
38%
23,400
2.38” 10 bolt
L220310709
-
-
3.9
48%
25,000
9.55”
L220290709
(23%)
stock 3.0”
-
68.5”
K080685
stock 90 mm
stock 70 mm
LPE
(L220636509)
3.2
23%
20,700
2.55” press-on
L220030709
67.5”
K080675
3.8
44%
24,300
2.55” 10 bolt
L220300709
67.5”
K080675
3.8
44%
24,300
2.38” 10 bolt
L220310709
67.5”
K080675
4.0
54%
26,000
10.0”
L220380709
(28%)
stock 3.0”
-
70.0”
K080700
stock 90 mm
stock 70 mm
LPE
(L220636509)
3.3
28%
21,700
2.55” press-on
L220030709
68.5”
K080685
3.9
51%
25,500
2.55” 10 bolt
L220300709
68.5”
K080685
3.9
51%
25,500
2.38” 10 bolt
L220310709
68.5”
K080685
4.2
62%
27,300
9.73” 10 rib L220450709
-
(requires 10 rib tensioner pulley)
2.70” 10 rib
XX03873-0004
67.5”
K100675
LPE 76 mm, 0.350 spacer
,
M10x1.5x60mm cap
head screw
LPE 76 mm, 0.200 spacer
,
M10x1.5x60mm cap
head screw
LPE
(L220636509)
3.5
35%
22,800
Supercharger speeds above 23,000 RPM are not recommended.
To calculate supercharger speed, multiply your maximum engine sp
eed by the pulley ratio value listed
above. Pulley ratios above 35% should only be used in applications wit
h proportionally lower maximum engine speeds (below 6500 RPM).
For applications where the crank pulley diameter is greater tha
n or equal to 9.17”, LPE idler relocation bracket (PN: L2206365
09) is required in order to provide enough
clearance between the crank pulley and the lower idler pulley
. For bearing durability reasons LPE does not recommend using i
dler pulleys smaller than 70mm.
An LPE idler pulley is required for these pulley/belt combinati
ons.
LSA
Pulley Sheet v1.1.indd