Lingenfelter L250070709 Lingenfelter CTS-V LSA Supercharger Pulley 2009-2012 v1.9 - Manual (Page 30)

Page 29.
Table 1 - belt length and idler pulley diameters required for different 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 speed by the pulley ratio value listed
above. Pulley ratios above 35% should only be used in applications with proportionally lower maximum engine speeds (below 6500 RPM). For applications where the crank pulley diameter is greater than or equal to 9.17”, LPE idler relocation bracket (PN: L220636509) 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 idler pulleys smaller than 70mm.
An LPE idler pulley is required for these pulley/belt combinations.
LSA
Pulley Sheet v1.1.indd