986 Forum - The Community for Porsche Boxster & Cayman Owners - View Single Post - BMW V12 in Boxster S with Tiptronic Help!

alipendier · 07-29-2010, 05:27 AM

I have a 1999 Porsche Boxster S with the tiptronic transmission that I am swapping the motor with a V12 from a 1989 BMW 750IL (M70) after a frame stretch. I plan to get the HP really up there (maybe 700 or even more...) but I need to know three things:

1. Is the Porsche tiptronic gear ratios compatible with the BMW V12 motor?
2. What is the max power the Porsche tiptronic transmission can handle? Basically do you think it can handle up to 700HP?
3. Any suggestions that can help with the engine swap...

Thanks

07-29-2010, 05:27 AM	#1
alipendier Registered User Join Date: Jul 2010 Location: Beverly Hills, CA Posts: 15	BMW V12 in Boxster S with Tiptronic Help! I have a 1999 Porsche Boxster S with the tiptronic transmission that I am swapping the motor with a V12 from a 1989 BMW 750IL (M70) after a frame stretch. I plan to get the HP really up there (maybe 700 or even more...) but I need to know three things: 1. Is the Porsche tiptronic gear ratios compatible with the BMW V12 motor? 2. What is the max power the Porsche tiptronic transmission can handle? Basically do you think it can handle up to 700HP? 3. Any suggestions that can help with the engine swap... Thanks