I hope You will excuse my Ignorance on this , just curious, is there a way you can take the engine apart and just try and find or ( I know this probably isn't a economical way ) and source a case from Europe or Porsche and reassemble with just a new ring set,.. why would you have to replace everything ?
Not bad questions at all. It would be somewhat possible to do what you ask, but you get into a lot of "while you're in there" situations to address poor Porsche designs.
~The factory cyl are coated with Lokasil. It has proven to be less durable than the Nikasil that was used in air cooled engines and is currently used in turbo and GT3 engines. If you get a factory block with Lokasil, you just reset the clock on when or if it will wash off.
~Bore scoring not only scratches the cyl walls, but also wears the coating off the piston skirts. No way you could reuse the pistons.
~Porsche used cheap rod bolts that stretch when spending extended time near redline. When the bolts stretch, it allows the rod bearings to slip out of place, resulting in what's referred to as a spun bearing. That's why I always shifted at 6K rpm on the track vs going all the way to 7200. I only do 2-3 DEs / yr.
~Porsche took a 911 engine and just turned it around for the 987. This resulted in potential oiling issues in long sweeping left handers, starving the oil to the #6 cyl. There are several ways to address this that get progressively better (and expensive) with each solution. I currently have an EBS oil baffle in my car., which is the least expensive fix. You can progress to deep sump oil pan and go all the way up to a 2nd set of oil pumps to keep the oil circulating. I was a bit disappointed EvoSpec does the deep sump but not a 2nd set of oil pots.
Bottom line is it doesn't make sense to not address the faults of the M97 while you're already doing major work. If you don't, you just have the same issues lurking, waiting to occur again. This is the main reason I don't want to do a used engine - the same problems are lurking. Unfortunately it costs $$$ to fix the problems but just changing the block would already cost a bunch. Might as well make it right.
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GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
Last edited by husker boxster; 05-05-2021 at 05:45 AM.
That is pretty - maybe a clear engine cover so it doesn't go unnoticed?
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2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
That is pretty - maybe a clear engine cover so it doesn't go unnoticed?
I already have the clear engine cover. Use it for car shows and DEs. It's held in place by 2 bolts, so it's faster to get to the engine and allows me to see anthing that might be going wrong - both good things when DEing. I don't leave it on full time, however, as it lets a nasty whooshing sound come thru more easily.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
I already have the clear engine cover. Use it for car shows and DEs. It's held in place by 2 bolts, so it's faster to get to the engine and allows me to see anthing that might be going wrong - both good things when DEing. I don't leave it on full time, however, as it lets a nasty whooshing sound come thru more easily.
Diy or bought? Got any pics?
Sent from my SM-G970U1 using Tapatalk
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
__________________
2000 Box Base, Renegade Stage 1 performance mods complete, more to come
When the owners manual says that the laws of physics can't be broken by this car, I took it as a challenge...
I was deep in the rabbit hole last night and found this. Interesting to see what they'll be doing (or have done) to my engine. Looks like this part of the rebuild only takes 4 min.
No word yet on a completion date. But still only a tad less than 3 mo.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
I was deep in the rabbit hole last night and found this. Interesting to see what they'll be doing (or have done) to my engine. Looks like this part of the rebuild only takes 4 min.
It's been a while but I haven't had much to report. I sent my trans to CMS in AZ to be freshened up back in July - 2nd gear synchro retrofit for $2500. A mo or so later I got an email with the damage.
A day or two later I got another batch of pics. Not good news.
The pinion was a bit snaggle-toothed. Oh, oh, the cash register just rang up another $2600.
A while later I get another email with some pics I didn't understand but a desc that I did: the 3rd & 4th gear synchros were on their last legs. Another $2K for those. By now I'm only $1K from a factory reman. Roger from CMS says it will take 3 wks to get a reman from Germany. I'm not overjoyed with the thought of spending $8K when I was budgeting for $2500, but it was the right decision to OK the reman. 5 wks go by and I don't hear anything, so I contact Roger. A wk later he says the trans is in CA and will be shipped to OMA after I pay my bill. I have the option of electronic check or credit card with a 3% penalty. I choose the former. I get busy and a wk goes by. I don't get any paperwork saying I've paid or a tracking #. When I contact Roger, he says the trans may still be in CA (supply chain issue?) but he's confident it will be delivered. Get busy again and 2 wks go by. Contact Roger again via email and text. No reply. I'm getting concerned. Call on Fri, get voice mail. Later he calls back and says the trans was delivered to SLM on the 19th. I hadn't heard from SLM that it was. Of course SLM was closed by then and not open on Sat. A friend said Alex at SLM will sometimes answer emails on Sat, so I fired one off asking if the trans had arrived. He said YES! Whew. Just several miscommunications all around. I stopped down today at SLM and yes, it is here.
What a nice looking piece of equipment. But for $8K it should look nice.
A couple wks earlier I got an email from Alex about my engine at EVO Spec. Alex had been trying several times to contact them about a status but wasn't hearing back from them. Then he received an email from John stating that he (John) had been sick and out for almost a mo. He was now back at the shop. He was sure my engine halves were back from L&N so it was a matter of putting the engine back together. I imagine John has a crapload of work to do, but if all goes well, I might have my engine back in the next 4-6 wks. Which means I could be driving her by year end. Fingers crossed.
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GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
Had been hoping my engine would be arriving in OMA around the first of this mo. Hadn't heard anything from SLM. Decided late last wk to just send an email to EvoSpec and see if they had an est on a ship date. Didn't hear anything. I was in the neighborhood so I stopped in to SLM yesterday on the off chance they had heard something. Alex said he'd received an email from John around Dec 1 saying the engine was nearing completion and might be ready in another two wks. So if everything is on schedule, it should be nearing completion and ready to ship shortly.
Getting anxious. :dance:
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
Jan turned into Mar, still no engine. Various stories as to why.
2 wks ago told it would be shipped on Mar 27. Was excited until I looked at the calendar and the 27th was a Sunday. Joked with Alex at SLM about the over / under odds on shipping on a Sun. The 27th came and went without a tracking number. Alex said to wait until Wed (he may have corresponded with Evo and they now told him Wed), but John sent an IM to Alex on Wed and said it was being shipped and a tracking number would be coming. Exciting, but...
Late yesterday the tracking number arrived. Punching the number shows...
Just so happens to arrive on my birthday. Happy birthday to me! Alex already has my car pulled out of the warehouse and is prepared to assemble as soon as the engine arrives. We've worked on the 'while you're in theres' and have them ready to go too. Alex thought it would be 2 wks to have her running. Can't wait for the dyno session to see what she has.
This is NOT an April fools joke. (I hope)
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
Husker, I am surprised that the wrapping still in one piece ..LOL
As much as I wanted to tear the wrapping off, I resisted. Alex was super busy and I didn't want to be a pest.
But here it is today!
The plan is to clean the ancillaries before putting them back on, then reassemble. Once it's back in the car, the dyno will be used for break-in. Using Driven Break-In oil, they'll do several runs - one in the 2K rpm range, check / change oil filter, another run at 3K rpm, check / change oil filter, etc until they've run it through all the ranges. Then change oil and she's ready to go.
__________________
GPRPCA Chief Driving Instructor
2008 Boxster S Limited Edition #005
2008 Cayman S Sport - Signal Green
1989 928 S4 5 spd - black
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