Crankshaft - Printable Version +- FocusCanada Forums (//www.focuscanada.net/forum) +-- Forum: Technobabble (//www.focuscanada.net/forum/forumdisplay.php?fid=4) +--- Forum: Focus on Performance (//www.focuscanada.net/forum/forumdisplay.php?fid=22) +--- Thread: Crankshaft (/showthread.php?tid=16615) |
Crankshaft - paseo - 10-30-2004 anyone know the advantages of an undersized crankshaft....im at a loss on this one Crankshaft - 02ztsian - 11-01-2004 By undersized what do you mean? Undersize crank journals, lightened crank or offset-ground crank? Undersize journals free up HP due to reduced friction (less total bearing surface) and less distance for the crank surface to travel; lightened crank will spin quicker (rev faster) but can nose over in top gear due to lost inertia; offset ground will increase displacement and increase compression (if the crank throw is increased). These are all old hot rodding tricks and apply to 4's as well as V-8's. Hope this helps. Crankshaft - Clutch - 11-04-2004 When your refering to an undersized crank, is someone else asking you if you want this? If your rebuilding an engine, you can have the crank polished/machined down (making it undersized) and then you would make up the difference with thicker (oversized) bearings when you put the engine back together. I hope this helps. :unsure: ~ Clutch |