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Discussion summary
YOUR RESEARCHAnyone have a 3.2L 996?
Leading reported evidence
Replace driving experience
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Performed · outcome unconfirmed
to my Porsche totally changed the driving experience.
Leading evidence: 'Replace driving experience' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace driving experience' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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Replace manifolds, and since it�s already 200cc smaller
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Suggestion
Much cheaper for Porsche to just change the manifolds, and since it�s already 200cc smaller, it doesn�t have to be a radically different engine than the 3.4.
Use 3.4 intake and exhaust manifolds= no bottleneck
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Suggestion
The big bottleneck on the 3.2 is the intake and exhaust manifolds, but if putting in a 996, then use the 3.4 intake and exhaust manifolds= no bottleneck..
Replace manifolds, and since it�s already 200cc smaller
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Suggestion
Much cheaper for Porsche to just change the manifolds, and since it�s already 200cc smaller, it doesn�t have to be a radically different engine than the 3.4.
Use 3.4 intake and exhaust manifolds= no bottleneck
No successful repair reported for this finding.
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Read evidence and context
Discussions that contain suggestions
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Suggestion
The big bottleneck on the 3.2 is the intake and exhaust manifolds, but if putting in a 996, then use the 3.4 intake and exhaust manifolds= no bottleneck..
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22 eligible posts · 0 unverified posts · 1 discussions match the subject in their title or opening post.
Rennlist: 1 discussions
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Thanks for the help everyone. Neill helped me out. I'll post up the details if the plan works out
I'm glad people think it makes almost 50 hp less than the 3.4L. Keeps prices down for guys like me. Lol
Cost and power output are the main reasons, but I like doing different things. I am considering swapping in a Cayman 2.7L VC+ M96 into one of my 996s just to see what it's like.
The 3.2L doesnt make that much less power than the 3.4L. Once you connect things like the intake manifold and throttle body, with the 3.4L tune, it might make 20-25 hp less.
~275 hp 911 is fine with me!
Since the longblocks are virtually identical except 3.2 is 93mm bore and 3.4 is 96mm bore, I would say the 3.2 is heavier by a couple pounds.(thicker cylinders)..
Damn....I was hoping it would be lighter....would have made a better case for doing it.
Another thing is if someone where to do this and sell the car you would never know it's a 3.2 other than maybe if you notice a bit less power.
Right, if the engine started life as a 3.2 the serial number will start with M96/21.....but if it has been rebuilt with new cylinders, it could be as large as 3.8 or even more.
The people I know of who did this swap said the butt-dyno power difference was negligible. They noticed it, but not enough to lessen the driving experience.
I view these cars completely differently from my other cars. My goal with the 996 is to find the most cost-effective solution to keep them running. The engine choices all have enough power to be fun to drive. 200+ hp has always been enough power for a fun driving experience. ~250hp is the sweet spot for me.
A running 996 is a good 996, IMO.
That is ridicules, adding 50 H.P. to my Porsche totally changed the driving experience. Most notable when I take a 90 degree turn at a intersection in 3rd gear instead of having to downshift to 2nd.
PT3
Any idea what the effect of the boxster heads would be on an engine Taken out to 3.8, inlet and exhaust ports are smaller?? Also I wonder if it's basically the same head so could you always port the 3.2 heads to be more like the 3.4 or better ??
I know for a fact the cams and valve sizes are the same on a 3.2-3.4, verified by the OEM part numbers, and although I haven't compared them directly myself, I remember Len Hoffman saying the ports are the same, so I think he can do the same magic on the 3.2 as he does for the 3.4..
The big bottleneck on the 3.2 is the intake and exhaust manifolds, but if putting in a 996, then use the 3.4 intake and exhaust manifolds= no bottleneck..
That is interesting. I would have expected different cams and ports, but now it makes sense. Much cheaper for Porsche to just change the manifolds, and since it�s already 200cc smaller, it doesn�t have to be a radically different engine than the 3.4.
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