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Old 12-16-2008, 09:49 AM   #5
blue2000s
Porscheectomy
 
Join Date: Mar 2006
Location: Seattle Area
Posts: 3,011
Quote:
Originally Posted by BoxsterLewis
haha! I must have, thats awesome! Now heres another question, the shop putting it in says they will have to use a lot of top end parts to make it fit and where the X51 makes its extra power is in the top parts..? Now i dont know how much they can use since i blew my motor with the IMS failure and i'm sure most of the top end parts like valves and cams cant be used right?
Technically, on a horizontally opposed engine, the heads aren't on the top. You definitely don't want to use the Boxster heads anyway.

I imagine what they're talking about is the extended intake plenum from the 911 engine. It is noticeably taller than the Boxster's intake. I believe the intake piping is also larger on the 911, at least I know that the MAF section is. Using the 911 intake can be done, but the engine needs to be lowered and the cover over the engine might still need to be modified. Check with Tholyoak over on Renntech, he's done a tutorial on how to do the 3.4 conversion and I believe has since gone to an x51.

http://www.renntech.org/forums/index.php?showtopic=13527&hl=conversion+diy

http://www.renntech.org/forums/index.php?showtopic=11411&hl=x51

The ECU needs to know which intake is on the car. If you end up with the Boxster intake but the ECU think's it's the 911 intake, the readings from the MAF will be off and you'll never get the car to run right.

Last edited by blue2000s; 12-16-2008 at 10:13 AM.
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