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Engine swap (slipped sleeve)


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Help!

My 98 Boxster suffers from a slipped cylinder sleeve. Porsche has not yet answered my infuriated letter and meanwhile, I found a 99 engine in (apparently) suitable condition and I am considering a swap. Are there any compatibility issues at stake?

Do I have to consider swapping the donor ECU also or will the 99 engine work with "my" ECU?

Any other issues I should be aware of?

I really need your help here.

Best,

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Help!

My 98 Boxster suffers from a slipped cylinder sleeve. Porsche has not yet answered my infuriated letter and meanwhile, I found a 99 engine in (apparently) suitable condition and I am considering a swap. Are there any compatibility issues at stake?

Do I have to consider swapping the donor ECU also or will the 99 engine work with "my" ECU?

Any other issues I should be aware of?

I really need your help here.

Best,

2.5L to 2.5L -- straight swap assuming they are both the same type of transmissions.

If not pull the TC/Flywheel from one to the other AND there will be a slight hose difference

for the AT vs Manual on the lower drivers side front.

m

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Thank you, txhookie4life

I am not completely at ease, though. Both are 2,5, both manual, but my primary concern is the electronics.

Should I transplant the donor's ECU or keep mine?

I mean,will the 99 engine work properly with the 88 (mine) ECU?

I have got two different opinions on this rather important aspect...

Would you be so kind as to elaborate?

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Thank you, txhookie4life

I am not completely at ease, though. Both are 2,5, both manual, but my primary concern is the electronics.

Should I transplant the donor's ECU or keep mine?

I mean,will the 99 engine work properly with the 88 (mine) ECU?

I have got two different opinions on this rather important aspect...

Would you be so kind as to elaborate?

ECU (DME) for both model years is 5.2.2 - so they are the same.

You will need to keep your ECU or your keys and alarm will not work and you won't be able to start the car.

If your ECU was working before there is no reason to change it.

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The 2,5 I was considering (and the only one I found until now...) reads 130.000 Km, too much IMHO. 2,7s seem somewhat more abundant. Is a 2,5-2,7 swap feasible? Would anyone be so kind as to elaborate on the subject?

Best regards,

HB

That is pretty high mileage (ok high kilometers :-)

a 2.7L would require a new DME at a minimum. Maybe some wire changes as well.

Depending on the extent of your damage -- maybe resleeving with nikasils is an option.

see www.lnengingeering.com

mike

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