Big Bore 3.2 to 3.8

[racer_d]

These are actual engine swaps, not just changing piston/cylinders... at least the ones I know of. Find a 996 or 997 motor, figure out how to make the wiring work and have at it!

[Brucelee]

Ditto. To my knowledge, there is no big bore route for the existing engines.

Ah, to have a small block chevy

[986888]

http://www.t-t-p.de/english/986.php

I spoke to the people at this site, and they rekon it can be done. Im gonna ask for pricing etc and ill let you know how much the quote is.

[Kirk]

I bet you'll find the TTP stuff is pretty expensive. I'm pretty sure that Gemballa uses their turbo system in their bi-turbo cars. Why go from 3.2L to 3.8L? Their 3.4L twin turbo may very well be near the same price but puts out 450 Hp. Would someone really need any more power than that? It sounds like they do it right too - lower compression pistons, head work, and intercooled. If the 3.2L and 3.4L are the same though, just with thicker cylinder sleeves in the 3.2L, then you'd almost be better off just dropping lower compression pistons in the 3.2L, don't overbore it, and crank the boost pressure up to still get 450 Hp or so. Unfortunately their 3.2L twin turbo system still uses stock internals (it's a bolt-on system) and thus would be prone to eventual failure.

Let us know what you find out! I'm going to guess they'll quote you $20K.

Kirk

[Adam]

I think Autofarm over in the UK does big bore kits for our engines.

[Ike]

Hey Mr. 986888,

Here is my answer to your original question - "Have you done it and is it worth it?"

I should qualify these thoughts as my own, and that most individuals have different values and priorities that they spend their hard earned cash on. That being said, I swapped out my 3.2L motor for a 3.6L X51 crate motor fresh from the Porsche factory. I had it professionally installed with a GT3 ecu. While it was in the shop I had the suspension upgraded with Bilstein PSS9s, M030 sways, & Paget Blue brake pads.

So now my Boxster has 355+ hp, and accelerates and handles like a mid engined 996 GT3. It is a phenomenal sportscar, and it thrills the holy bejezzus out of me every time I drive it. I live in remote part of the Rocky Mountains, and as a fun hobby I drive the back roads like the devil is on my tail.

Yeah, I am glad I spent the money on the Boxster! I was a big fan of it in it's stock configuration. In it's econo-supercar configuration (?!?!) I can't get enough of it. I would have a hard time swapping it for any other sportscar.....but that's just me!

Happy Trails,
Ike

[986888]

First up.. IKE nice ride man..

I wish i had the papers to spend on a new engine.. as im only a uni student i dont think it is within my means, but nice mods man ur car sounds like a rocket.
anyway im looking at just enjoying the car for what it is.. for now anyway who knows i might not have it for too much longer.

[Brucelee]

Originally Posted by Ike

Hey Mr. 986888,

Here is my answer to your original question - "Have you done it and is it worth it?"

I should qualify these thoughts as my own, and that most individuals have different values and priorities that they spend their hard earned cash on. That being said, I swapped out my 3.2L motor for a 3.6L X51 crate motor fresh from the Porsche factory. I had it professionally installed with a GT3 ecu. While it was in the shop I had the suspension upgraded with Bilstein PSS9s, M030 sways, & Paget Blue brake pads.

So now my Boxster has 355+ hp, and accelerates and handles like a mid engined 996 GT3. It is a phenomenal sportscar, and it thrills the holy bejezzus out of me every time I drive it. I live in remote part of the Rocky Mountains, and as a fun hobby I drive the back roads like the devil is on my tail.

Yeah, I am glad I spent the money on the Boxster! I was a big fan of it in it's stock configuration. In it's econo-supercar configuration (?!?!) I can't get enough of it. I would have a hard time swapping it for any other sportscar.....but that's just me!

Happy Trails,
Ike

This is the car that Porsche should build. Think of the markup?????



Sounds wonderful, much continued luck with the car.

PS-Keep the oil clean.

[Brucelee]

Originally Posted by 986888

http://www.t-t-p.de/english/986.php

I spoke to the people at this site, and they rekon it can be done. Im gonna ask for pricing etc and ill let you know how much the quote is.

If they used those words, it sounds like they have not done one yet.

If so, I am not sure you want to be a beta for their effort! :dance:

[Adam]

Here's the link to Autofarm and their bore options. They can take a 2.7L out to 3.0L and a 3.2L S engine out to 3.7L.

http://www.autofarm.co.uk/engines/water_cooled/capacity

[wild1poet2]

Originally Posted by Brucelee

Ditto. To my knowledge, there is no big bore route for the existing engines.

Ah, to have a small block chevy

now you're talking.... a la Caroll Shelby and the AC Cobra