I think the dry sump systems are worth more because they eliminate the excess oil in the pan which creates drag on the crank. That's why a windage tray should be used between the oil pan and crank. One nice thing about a dry sump system is the oil pressure can be pumped up prior to starting the engine, hence no oil starvation. That is a great question tho, one I've never thought about. Dan Whitehead Hey Dean, I honestly don't know the answer and have not heard it discussed before.? On race engines, I think that a belt-driven dry sump system can be worth 50+ HP over a wet-sump system.? ? Perhaps one of the AMC racers over on the AMC-List know the REAL answer to your question.? I'll CC this email over there. _________________________________________________________________ Lauren found her dream laptop. Find the PC that’s right for you. http://www.microsoft.com/windows/choosepc/?ocid=ftp_val_wl_290 -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://list.amc-list.com/pipermail/amc-list-amc-list.com/attachments/20090622/fb4d10da/attachment.htm> _______________________________________________ AMC-list mailing list AMC-list@xxxxxxxxxxxx http://list.amc-list.com/listinfo.cgi/amc-list-amc-list.com