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> Water cooled Porsche 6-cylinder dimensions
technicalninja
post Dec 22 2024, 01:27 AM
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I have a complete running 99 Boxster 5spd with a quarter million miles on it.

It's roachy enough to turn into an "Organ Donor".

I'm a sucker for 4 valve, modern digital FI, COP, and modern accessories.

I look at the Boxster and think "Wonder if I can fit that in the 914?".

I think it might be possible.

After conversion I would most likely replace it with a Boxster S or maybe even a 911 engine.

The drive package I'd rather use is a Boxster/Cayman S with the six speed but I own the 2.5L 5 speed now.

There is a good chance I can part the 986 out and make money as it came with a factory hardtop. I want to "vulture" the calipers anyway.

Are the water-cooled sixes dimensionally identical externally?

Have others tried before?

I did find this. At least one has been done!
https://forums.pelicanparts.com/porsche-914...conversion.html


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mb911
post Dec 22 2024, 05:22 AM
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Interesting thread you linked. If you have both patients why not? The donor engine and a willing recipient.
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Shivers
post Dec 22 2024, 07:03 AM
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At the end he talks about having swapped it out for a 3.2 S engine. Not much room but it is do-able. (IMG:style_emoticons/default/idea.gif) Nice design on the rear trans mount.


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ClayPerrine
post Dec 22 2024, 07:32 AM
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IIRC..... it won't fit. The engine is too wide to fit between the trailing arm mounts.

Now if you want to put the whole rear suspension under the 914, then it would fit.


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BillC
post Dec 22 2024, 08:35 AM
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QUOTE(technicalninja @ Dec 22 2024, 02:27 AM) *

I have a complete running 99 Boxster 5spd with a quarter million miles on it.

It's roachy enough to turn into an "Organ Donor".

I'm a sucker for 4 valve, modern digital FI, COP, and modern accessories.

I look at the Boxster and think "Wonder if I can fit that in the 914?".

I think it might be possible.

After conversion I would most likely replace it with a Boxster S or maybe even a 911 engine.

The drive package I'd rather use is a Boxster/Cayman S with the six speed but I own the 2.5L 5 speed now.

There is a good chance I can part the 986 out and make money as it came with a factory hardtop. I want to "vulture" the calipers anyway.

Are the water-cooled sixes dimensionally identical externally?

Have others tried before?

I did find this. At least one has been done!
https://forums.pelicanparts.com/porsche-914...conversion.html

Keep in mind that '97-'99 Boxsters are the donor cars for the Spec Boxster (SPB) racing class. Those early boxsters are actually going up a little in value, as more people look to get into the class or look for more spare parts (engine & trans). So, you may want to consider selling your car as a race donor, and get a newer (and potentially cheaper) boxster to use as an engine donor.
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technicalninja
post Dec 22 2024, 11:26 AM
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QUOTE(BillC @ Dec 22 2024, 08:35 AM) *

QUOTE(technicalninja @ Dec 22 2024, 02:27 AM) *

I have a complete running 99 Boxster 5spd with a quarter million miles on it.

It's roachy enough to turn into an "Organ Donor".

I'm a sucker for 4 valve, modern digital FI, COP, and modern accessories.

I look at the Boxster and think "Wonder if I can fit that in the 914?".

I think it might be possible.

After conversion I would most likely replace it with a Boxster S or maybe even a 911 engine.

The drive package I'd rather use is a Boxster/Cayman S with the six speed but I own the 2.5L 5 speed now.

There is a good chance I can part the 986 out and make money as it came with a factory hardtop. I want to "vulture" the calipers anyway.

Are the water-cooled sixes dimensionally identical externally?

Have others tried before?

I did find this. At least one has been done!
https://forums.pelicanparts.com/porsche-914...conversion.html

Keep in mind that '97-'99 Boxsters are the donor cars for the Spec Boxster (SPB) racing class. Those early boxsters are actually going up a little in value, as more people look to get into the class or look for more spare parts (engine & trans). So, you may want to consider selling your car as a race donor, and get a newer (and potentially cheaper) boxster to use as an engine donor.


OUTSTANDING!
You just "Bitch-Slapped" the Ninja!
This is the type of info I needed.

Dad bought this POS from the original owner. He lives here in Granbury, and he drove it to Dallas every day. It's COMPLETELY stock. All of the work was done by Autobahn (the local P dealer).
Paints GONE, both bumper covers show evidence of minor collisions but...

It's straight as an arrow, no rust at all. The underside of the car looks better than the top. It's NEVER been in a serious accident. The interior is trashed...
It's never been high centered!
It doesn't even have "jack" marks on the bottom.

This thing is EITHER an organ donor OR it would make a killer chassis to build a track car off of!

I'd RATHER start with an S, and I don't need a straight one...
Wadded up would work fine!

I didn't even think "Don't be stupid, someone might want the pup as a track car".

Thank you for the head up @BillC

Oh, Dad paid $850 for it as a "not run in 5 years car".
I resurrected it and it's all there. I've personally driven it in all 5 gears.
I'd guess the hard top is worth $850!
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mepstein
post Dec 22 2024, 12:31 PM
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QUOTE(technicalninja @ Dec 22 2024, 12:26 PM) *

QUOTE(BillC @ Dec 22 2024, 08:35 AM) *

QUOTE(technicalninja @ Dec 22 2024, 02:27 AM) *

I have a complete running 99 Boxster 5spd with a quarter million miles on it.

It's roachy enough to turn into an "Organ Donor".

I'm a sucker for 4 valve, modern digital FI, COP, and modern accessories.

I look at the Boxster and think "Wonder if I can fit that in the 914?".

I think it might be possible.

After conversion I would most likely replace it with a Boxster S or maybe even a 911 engine.

The drive package I'd rather use is a Boxster/Cayman S with the six speed but I own the 2.5L 5 speed now.

There is a good chance I can part the 986 out and make money as it came with a factory hardtop. I want to "vulture" the calipers anyway.

Are the water-cooled sixes dimensionally identical externally?

Have others tried before?

I did find this. At least one has been done!
https://forums.pelicanparts.com/porsche-914...conversion.html

Keep in mind that '97-'99 Boxsters are the donor cars for the Spec Boxster (SPB) racing class. Those early boxsters are actually going up a little in value, as more people look to get into the class or look for more spare parts (engine & trans). So, you may want to consider selling your car as a race donor, and get a newer (and potentially cheaper) boxster to use as an engine donor.


OUTSTANDING!
You just "Bitch-Slapped" the Ninja!
This is the type of info I needed.

Dad bought this POS from the original owner. He lives here in Granbury, and he drove it to Dallas every day. It's COMPLETELY stock. All of the work was done by Autobahn (the local P dealer).
Paints GONE, both bumper covers show evidence of minor collisions but...

It's straight as an arrow, no rust at all. The underside of the car looks better than the top. It's NEVER been in a serious accident. The interior is trashed...
It's never been high centered!
It doesn't even have "jack" marks on the bottom.

This thing is EITHER an organ donor OR it would make a killer chassis to build a track car off of!

I'd RATHER start with an S, and I don't need a straight one...
Wadded up would work fine!

I didn't even think "Don't be stupid, someone might want the pup as a track car".

Thank you for the head up @BillC

Oh, Dad paid $850 for it as a "not run in 5 years car".
I resurrected it and it's all there. I've personally driven it in all 5 gears.
I'd guess the hard top is worth $850!

(IMG:style_emoticons/default/agree.gif) The Boxster spec guys pull the interior top etc. Easy money for you.
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technicalninja
post Dec 22 2024, 01:08 PM
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One of the problems with the car was the shifter was baulky and the emergency brake handle didn't work. This blows "inspection" down here.

My son Bryan was tasked to check out what's going on.

When he pulled the center console the MONEY poured out...

Like an old fashion Vegas slot machine!

$47+ in CHANGE!

Fixed all of the problems and paid for lunch!
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Front yard mechanic
post Dec 22 2024, 05:09 PM
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I have a ford v10 out of 2 ton truck you can have to try and fit
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SirAndy
post Dec 22 2024, 05:28 PM
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QUOTE(ClayPerrine @ Dec 22 2024, 05:32 AM) *
IIRC..... it won't fit. The engine is too wide to fit between the trailing arm mounts.

It's been a long time but i remember Jason looked into this and there were clearance problems with the rear trailing arm mounts.
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technicalninja
post Dec 22 2024, 06:06 PM
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@SirAndy .
Check that link out. You are a poster in it. It has pics near the end that do show "how much room" and even the coils installed actually fit.

I've seen mention in a couple of other threads of having to fit remote mount coils.

I prefer remote coils anyway. Keeping electrical stuff cool never hurts longevity.

The pics Shiver posted were from the very end of that thread and it's swapped to a 3.2 S.

He stated that the original 5 speed had "too short" gearing and he swapped in a 2.7 5 speed.

I also thought that 400K "Singer style" 914 used the water-cooled drive package.

The fit is TIGHT but doable IMO.

Even looks like enough room for additional stiffening of the suspension ear.
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BillC
post Dec 22 2024, 06:33 PM
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QUOTE(technicalninja @ Dec 22 2024, 12:26 PM) *

QUOTE(BillC @ Dec 22 2024, 08:35 AM) *

QUOTE(technicalninja @ Dec 22 2024, 02:27 AM) *

I have a complete running 99 Boxster 5spd with a quarter million miles on it.

It's roachy enough to turn into an "Organ Donor".

I'm a sucker for 4 valve, modern digital FI, COP, and modern accessories.

I look at the Boxster and think "Wonder if I can fit that in the 914?".

I think it might be possible.

After conversion I would most likely replace it with a Boxster S or maybe even a 911 engine.

The drive package I'd rather use is a Boxster/Cayman S with the six speed but I own the 2.5L 5 speed now.

There is a good chance I can part the 986 out and make money as it came with a factory hardtop. I want to "vulture" the calipers anyway.

Are the water-cooled sixes dimensionally identical externally?

Have others tried before?

I did find this. At least one has been done!
https://forums.pelicanparts.com/porsche-914...conversion.html

Keep in mind that '97-'99 Boxsters are the donor cars for the Spec Boxster (SPB) racing class. Those early boxsters are actually going up a little in value, as more people look to get into the class or look for more spare parts (engine & trans). So, you may want to consider selling your car as a race donor, and get a newer (and potentially cheaper) boxster to use as an engine donor.


OUTSTANDING!
You just "Bitch-Slapped" the Ninja!
This is the type of info I needed.

Dad bought this POS from the original owner. He lives here in Granbury, and he drove it to Dallas every day. It's COMPLETELY stock. All of the work was done by Autobahn (the local P dealer).
Paints GONE, both bumper covers show evidence of minor collisions but...

It's straight as an arrow, no rust at all. The underside of the car looks better than the top. It's NEVER been in a serious accident. The interior is trashed...
It's never been high centered!
It doesn't even have "jack" marks on the bottom.

This thing is EITHER an organ donor OR it would make a killer chassis to build a track car off of!

I'd RATHER start with an S, and I don't need a straight one...
Wadded up would work fine!

I didn't even think "Don't be stupid, someone might want the pup as a track car".

Thank you for the head up @BillC

Oh, Dad paid $850 for it as a "not run in 5 years car".
I resurrected it and it's all there. I've personally driven it in all 5 gears.
I'd guess the hard top is worth $850!

Didn't intend to show up anyone, just wanted to point out an alternative.

For a good, solid-but-cosmetically-challenged early boxster, you can probably get $5-6K from a race shop, maybe a little more from an individual planning to build his own car. Suggest advertising on the rennlist forums or racingjunk.com .

PCA just introduced a new class called ME1. It's for '00-'08 base boxsters and caymans. So, '00-'04 boxster S models are probably your best bet for a drivetrain donor, especially if you can find one with a damaged body and/or trashed roof/interior. Or, if you can find one with a decent interior, you can recoup some of your money by parting it out.

Also, the hard top is in demand for race cars, too. PCA rules require a hard top, and the factory metal hardtop means you don't have to run a roof net or arm restraints. A factory hardtop in decent shape is easily $1K to the right person.
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Literati914
post Dec 22 2024, 09:08 PM
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QUOTE(BillC @ Dec 22 2024, 06:33 PM) *

.. you can probably get $5-6K from a race shop, maybe a little more from an individual planning to build his own car. Suggest advertising on the rennlist forums or racingjunk.com .
..


Motorsport Ranch racetrack is right down the road from you (I know you're aware).. see if you can park it in the pits with a for sale sign on it, during a club weekend. I love the idea of one of these engines in a 914 btw - and it looks like two people have done it, I'd be anxious to see if you do this. I say 'Go for it' !
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targa72e
post Dec 22 2024, 10:48 PM
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If you search you can find people that have swapped a Boxster engine into a 914. From what I recall as others have mentioned you have to go with remote coils on a couple cylinders for clearance (its that close).

john
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SirAndy
post Dec 23 2024, 10:54 AM
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QUOTE(technicalninja @ Dec 22 2024, 04:06 PM) *

@SirAndy .
Check that link out. You are a poster in it. It has pics near the end that do show "how much room" and even the coils installed actually fit.


I completely forgot about that thread until it showed up here again.
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Superhawk996
post Dec 23 2024, 01:13 PM
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As a self anointed air cooled enthusiast, ya’ all just keep finding new ways to destroy 914’s (IMG:style_emoticons/default/happy11.gif)
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technicalninja
post Dec 23 2024, 03:32 PM
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QUOTE(Superhawk996 @ Dec 23 2024, 01:13 PM) *

As a self anointed air cooled enthusiast, ya’ all just keep finding new ways to destroy 914’s (IMG:style_emoticons/default/happy11.gif)


And I wouldn't if there was an economical, reliable method of achieving 300whp out of a T4.

If there was an economical path to 200, I'd have probably chosen it on my nice 75 and left the chassis "stockish"...

IMO if you're spending more than 10K you SHOULD receive more than 120hp...

The Boxster swap would be very budget friendly as I own it now.

I expect to spend less than 10K going LGX and Bosxter 6. I'm just not sure if that will work and it looks like others have been successful with the modern Porsche 6.

One benefit of the Porsche swap is "Staying in the family".
AFAIAC the Boxster IS the 914's descendent.
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Steve
post Dec 23 2024, 06:34 PM
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A 3.2 Boxster S motor and trans would be cool in a 914, but that's a lot of fabrication to make it work. Not a bolt in. What happened to the rear trunk? No completed trunk pictures after he destroyed it. Now if it was a bolt in and someone made a kit like we have available for Subi, LS and 3.6 993/964, then it would be a different story.
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rick 918-S
post Dec 23 2024, 06:38 PM
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If I didn't have so many project cars now I would make you an offer on the roller for a Cyanne V8 swap. Boss says no more projects (IMG:style_emoticons/default/dry.gif) (IMG:style_emoticons/default/ricola.gif)
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technicalninja
post Dec 23 2024, 07:38 PM
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I like fabrication. I'm prone to "tilt at windmills"

I have a brand new "engineer" I need to break in...

My son Bryan graduated Dec 12! (IMG:style_emoticons/default/first.gif)

The last place he was employed LOVES him. Has told him, "Don't be a stranger, you're welcome to stop in and use the shop whenever you want".

The "shop" has more than a quarter billion in equipment now.

They have the largest 3D Titanium printer in the world...

My son is a "Full Blown Fabricator" every bit as "bat shit crazy" as his father.

So, I should have the fabrication crap handled...

I've found swaps of this nature significantly easier to do if you have the complete donor.

But BillCs advice IS the way I'll proceed should I decide to go Porsche.

No one has answered the question in my first post. (IMG:style_emoticons/default/headbang.gif)

Before I take the P road, I wanted to verify that the water-cooled 6s are the same in outer dimensions. I BELIEVE they are.

I don't have enough experience with these to know myself.

I was hoping for "Yes, they are the same up to the Vario-cam which has tits sticking out of the front of the T-chain cover" or something similar.


Rick, I'd have entertained your offer. The interior is not complete trash, and I do have another set of leather seats out of a later Boxster than ARE nice. We still might talk...

I AM going to float the "Killer candidate for Spec Porsche race car" by all the shops up at MSR. I do the AC shit for some of them anyway.

I cannot believe I didn't even think about "Race Car" because that is what this Boxster should become...

I felt a little bad about killing off a complete decent car anyway.

Far less remorse following BillCs advice...

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