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Old 08-18-2022, 04:09 AM   #21
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Hello Homeoboxter, bust just ran into this engine (not affiliated), but it seems that could be a great deal for the price, if it works out you could have with a nice powerplant for your Boxter :-)

https://rennlist.com/forums/market/1313957
That engine was one of my options when deciding what to do with my bore scored CSS. He's dropped the price substantially since I was looking 1.5 yrs ago.

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Old 08-27-2022, 11:38 AM   #22
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Sorry to hear about this. What year was it and what displacement? I have a bunch of parts from a 99 2.5L that I donít have a use for(probably just jinxed myself) if you decide to rebuild.
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Old 08-27-2022, 01:49 PM   #23
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Thanks, it`s the same, 99, 2.5L. I`m looking for a complete engine that I could just swap out, but actually I might rebuild it if i find a usable short block. Can you PM me with a list of what you have?
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Old 08-28-2022, 05:28 AM   #24
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Sorry about what happened, Homeoboxster. A catastrophic engine failure is probably on the mind of everyone on here. I've actually been looking around for a shop that would convert mine to electric if that were to happen. Do you know of any, and is that something you've considered? I know it's sacrilege for truists on here, but I think it would be interesting.
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Old 08-28-2022, 07:29 AM   #25
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It's been done:
https://www.youtube.com/watch?v=4_SOP86n-PM
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Old 08-28-2022, 07:38 AM   #26
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Yes, I've seen that. But it's well above my skill level so I'm hoping to find a shop that would do it.

I found a place but they want upwards of $60K, IIRC. I thought around $20K would be reasonable, but I don't know.

I would, however, be comfortable with a bolt-on DIY kit specifically designed for the Boxster, if I could find that.
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Old 08-28-2022, 10:47 AM   #27
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Sorry about what happened, Homeoboxster. A catastrophic engine failure is probably on the mind of everyone on here. I've actually been looking around for a shop that would convert mine to electric if that were to happen. Do you know of any, and is that something you've considered? I know it's sacrilege for truists on here, but I think it would be interesting.
Yes, I thought about that and it would be a perfect solution because I use the car for short rides. It would be an exciting project! It`s a lot of work though and it`s out of the budget too. It seems that the easiest and cheapest solution now is just to swap the engine out with the same 2.5 engine or rebuild it again if I find a low mile donor engine with good cases.
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Old 08-28-2022, 11:40 AM   #28
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I would just swap with another one. Why buy a block, then tear down the old, build the replacement....doubles the time. Get one from a doner, replace the plugs, wp, change the oil and be done with it. Get it done in time for fall which I think is one of the best times of the year to be driving these.
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Old 08-28-2022, 12:02 PM   #29
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Thank you for the link, it was pretty interesting to watch :-)
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Old 08-28-2022, 10:59 PM   #30
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Thank you for the link, it was pretty interesting to watch :-)
Agree ion that.

But do i really want a Boxster that sounds like a tram? I don't know.
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Old 08-29-2022, 03:57 AM   #31
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Agree ion that.

But do i really want a Boxster that sounds like a tram? I don't know.
Yeah, for ~ the same $ you can get a nice 3.4-3.8 motor in the back and get around the same performance you could from the electric.

One thing about the electric conversion is that there a bunch of places to put batteries on a 986 so range would only be a limitation of $ for batteries.
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Old 08-29-2022, 04:00 AM   #32
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I'd look at car-part.com for a complete engine and probably get one with a 90 day or 6 mo warranty. Here's a few in Northern California:



Swap the best bolt-on stuff from your rebuilt/bad engine.
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Old 08-29-2022, 09:13 AM   #33
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I'd look at car-part.com for a complete engine and probably get one with a 90 day or 6 mo warranty. Here's a few in Northern California:



Swap the best bolt-on stuff from your rebuilt/bad engine.
Thanks, I didn`t know this site!
I`m thinking of getting this:
https://orangecounty.craigslist.org/pts/d/aliso-viejo-1999-porsche-boxster-engine/7516701025.html
Price is largely negotiable.

I also thought about this, for a rebuild:
https://sfbay.craigslist.org/sby/pts/7527129249.html
I assume this wouldn`t work with the 2.5 heads, clutch and transmission though, so I dropped the idea.
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Old 09-22-2022, 02:33 PM   #34
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Nice build thread - sorry to hear about the recent development.

I've not done any rebuilds but am considering one on my 03 986 S.

Can you give a little more detail about using the extra oil pump housing and pre-filling the oil on the build stand please? Did you fill completely (from the top I assume)? You used the dip stick to measure as you got close to the right amount? You used the drill to load up the block while you were filling? You just swapped out the cover with the drive and the hole-less cover when you were done (messy?)?
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Old 09-22-2022, 04:37 PM   #35
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Nice build thread - sorry to hear about the recent development.

I've not done any rebuilds but am considering one on my 03 986 S.

Can you give a little more detail about using the extra oil pump housing and pre-filling the oil on the build stand please? Did you fill completely (from the top I assume)? You used the dip stick to measure as you got close to the right amount? You used the drill to load up the block while you were filling? You just swapped out the cover with the drive and the hole-less cover when you were done (messy?)?
Yes, to each of your questions This whole procedure is not really necessary, I just did it because I had an extra pump and I wanted to make sure that the variocam system is filled up because I was testing those, see the video somewheer in the thread. I saw some builders using an external pump (any kind) to fill the engine with oil via an opening of the oil circulation system, probably the heat exchanger or the oil filter inlet could be used for this. Some builders just pre-lube everything with the assembly lube and that also works, I personally don`t like that though.

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