Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft.
Specifications:
Description_EXT |
13 Percent Underdrive - Billet Aluminum - E60/E63/E64 |
Description_DES |
Dinan Underdrive Crankshaft Pulley Kit - BMW M5/M6 |
Description_INV |
UNDERDRIVE PULLEY KIT S85 STRE |
Description_FAB |
All accessories are underdriven by 13% to decrease drag on the engine. |
Description_FAB |
Lightweight billet aluminum crankshaft pulley, black anodized and engraved. |
Description_FAB |
Includes mounting hardware and shorter belts. |
Description_MKT |
Dinan's lightweight billet aluminum crankshaft pulley underdrives each of the accessories by 13 percent, reducing parasitic drag on the engine for a 6 HP @ 8000 RPM and 4 lb-ft torque @ 8000 RPM gain on a stock vehicle. The Dinan underdrive pulley retains the factory harmonic crankshaft damper, eliminating vibration that might otherwise damage the crankshaft. |
Description_MKT |
The kit includes all of the necessary mounting hardware, lightweight pulley, and shorter belts. This product is backed by our industry-leading 4 year/50,000 mile warranty so you can rest assured that you are purchasing the best quality product for your BMW. |
Brand |
Dinan |
Dinan Point Value |
1 |
Emission Code |
5, 6 |
Height |
4 |
Labor Time (Hours) |
2 |
Length |
6 |
Max HP Gain |
6 @ 8000 RPM |
Max Torque (lb-ft) Gain |
4 @ 8000 RPM |
Product Type |
Pulley Kit |
Weight |
2 |
Width |
6 |
Length |
7.1000 |
Width |
10.5000 |
Height |
14.4000 |
Weight |
2.6000 |