2002 C4S for sale
10-22-2013, 07:16 PM
#16
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Location: Honduras, Central America
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Here's an idea. Since I understand the 997.1 is basically the same M96 engine it could probably fit and you'd get a nice hp bump.
I'm guessing here but I'd think any good Porsche shop could make that work for you.
I'm guessing here but I'd think any good Porsche shop could make that work for you.
10-22-2013, 08:56 PM
#19
Nordschleife Master
10-23-2013, 12:05 AM
#20
You are correct, massive job...also include cutting the 1/4 panels to accommodate the intercooler ducts...never get anywhere close to the investment back..
Yeah, I know. From the research I have done, it seems you would have to swap everything over from the turbo, including the transmission, DME, wiring harness, exhaust, and a bunch of other stuff. Does that sound about right?
I couldn't find anyone who has done the full swap, but one source told me it would be a LOT of work. Anyway, just exploring options.
I couldn't find anyone who has done the full swap, but one source told me it would be a LOT of work. Anyway, just exploring options.
10-23-2013, 09:23 AM
#22
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No, it's not the same.
The engine on a 996 turbo and the M96 engine the C4S use are not based on the same block. Turbo/GT3 are based on the Henzler engine whereas the M96 is a new design.
The m96/M97 family are developments of the same design, so he's looking at engine, DME,harness and other parts, but far easier for a good shop to make happen than a Turbo engine.
In the end it will probably be about the same as taking his engine out to 3.8.
The good thing about the M97 engine is Porsche worked out most of the RMS and IMS failures of the M96.
The engine on a 996 turbo and the M96 engine the C4S use are not based on the same block. Turbo/GT3 are based on the Henzler engine whereas the M96 is a new design.
The m96/M97 family are developments of the same design, so he's looking at engine, DME,harness and other parts, but far easier for a good shop to make happen than a Turbo engine.
In the end it will probably be about the same as taking his engine out to 3.8.
The good thing about the M97 engine is Porsche worked out most of the RMS and IMS failures of the M96.
10-23-2013, 09:40 AM
#23
Nordschleife Master
No, it's not the same.
The engine on a 996 turbo and the M96 engine the C4S use are not based on the same block. Turbo/GT3 are based on the Henzler engine whereas the M96 is a new design.
The m96/M97 family are developments of the same design, so he's looking at engine, DME,harness and other parts, but far easier for a good shop to make happen than a Turbo engine.
In the end it will probably be about the same as taking his engine out to 3.8.
The good thing about the M97 engine is Porsche worked out most of the RMS and IMS failures of the M96.
The engine on a 996 turbo and the M96 engine the C4S use are not based on the same block. Turbo/GT3 are based on the Henzler engine whereas the M96 is a new design.
The m96/M97 family are developments of the same design, so he's looking at engine, DME,harness and other parts, but far easier for a good shop to make happen than a Turbo engine.
In the end it will probably be about the same as taking his engine out to 3.8.
The good thing about the M97 engine is Porsche worked out most of the RMS and IMS failures of the M96.
10-23-2013, 11:21 AM
#24
if planning on driving the car normally again or selling, drop a used m96/m97(not really any better than a m96 but IMS still fails and doesn't have a aftermarket retrofit bearing, as far as I know,yet) engine in and go, if you plan on having a track car then a TT/GT3 swap would kind-of make sense(GT3 being much easier swap)...
if it's a rod bearing failure, why not just open it up and put a used crank and rods into it? sounds like the engine is otherwise sound.
if it's a rod bearing failure, why not just open it up and put a used crank and rods into it? sounds like the engine is otherwise sound.
10-23-2013, 12:24 PM
#26
Nordschleife Master
It may not require a complete rebuild, if the cylinders are not scuffed and the block is ok, then it should just be a fix and replace preventive stuff like chain pads, tensioners, valve guides. Maybe at most 10k
10-23-2013, 02:08 PM
#28
Captain Obvious
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When you have a spun con rod bearing and Porsche doesn't sell oversized bearings, a simple rebuild starts to become expensive. For the life of me I can't understand why no one makes oversize connecting rod or main bearings. These engines are over 15 years old and there is over 160K made, that's got to be big enough of a market for a bearing manufacturer to start making them.
