986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - How can a 911 3.4 have so much more HP than a 3.2 Boxster S?

Jake Raby · 11-09-2013, 09:56 AM

The two engines share the same head castings and camshafts as well as the crankcase, with only an altered bore size.

The 3.2S engine has the most potential for additional performance in stock form by far. Thats because it was seriously handicapped at the factory, BUT the factory did this in a way that didn't cost them much money.

330HP from a 3.2 base engine is our starting point these days, 350 is routine with the Gen 5 combinations. :-)

11-09-2013, 09:56 AM	#7
Jake Raby Engine Surgeon Join Date: Aug 2008 Location: Cleveland GA USA Posts: 2,425	The two engines share the same head castings and camshafts as well as the crankcase, with only an altered bore size. The 3.2S engine has the most potential for additional performance in stock form by far. Thats because it was seriously handicapped at the factory, BUT the factory did this in a way that didn't cost them much money. 330HP from a 3.2 base engine is our starting point these days, 350 is routine with the Gen 5 combinations. :-) __________________ Jake Raby/www.flat6innovations.com IMS Solution/ Faultless Tool Inventor US Patent 8,992,089 & US Patent 9,416,697 Developer of The IMS Retrofit Procedure- M96/ M97 Specialist