Boxster V8

[clickman]

I'm thinking: man, it's a shame that people have to make Frankensteins out of their Porsches because Porsche has no viable alternative.

[KRAM36]

Originally Posted by clickman

I'm thinking: man, it's a shame that people have to make Frankensteins out of their Porsches because Porsche has no viable alternative.

I'm hoping my motor last a long time as I'm dropping some coin on it right now to get some more power out of it, but when the time comes a V8 would be awesome. An LS-3 engine is very reliable, has lots of power, cheaper maintenance, hopefully cheaper to buy when my motor does kick the bucket, and the sound of a V8 coming out of this car would be sweet.

[jarrodblake]

Will yous also offer parts separate? I maybe interested in the wiring harness and flywheel/ clutch kit.

[Gelbster]

500hp ? Insurance? Smog test in CA? Impractical.
I am not a rich man. I'll stick with salvage title ,less than300hp,reasonable insurance cost, fewer tickets. The cost of 400+ hp is a fantasy.And for that kind of money I have more interesting fantasies & imagination?

[BOOTLEG]

I too am interested. My 01 Box S is waiting patiently for a heart transplant. I am evaluating the LS, Audi, Subaru or just an EBAY PMotor. Each has pros and cons. Will the Audi bolt right up to my 6 speed? Is there a source for mounts or do I have to make my own? What about ECM? A kit would be nice!

[itsnotanova]

The audi 4.2 or 2.7 will bolt up to a boxster 5 speed with no problems but the 6 speed doesn't have a provision for the audi starter. The 5 speed is on the right, 6 on the left

[KRAM36]

Removed wrong pictures

[Dlirium]

Originally Posted by Gelbster

500hp ? Insurance? Smog test in CA? Impractical.
I am not a rich man. I'll stick with salvage title ,less than300hp,reasonable insurance cost, fewer tickets. The cost of 400+ hp is a fantasy.And for that kind of money I have more interesting fantasies & imagination?

Exactly! That's why a V8 conversion would likely not be your cup o tea...

[Smallblock454]

Hi,

has anybody checked if Mercedes engines will fit? I ask, because Porsche used NAG1 AT transmissions for the 928, 996 and 997. So in general it also should fit for the Boxster engines.

The M112 and M113 defintely do have another engine charasteristic than the Porsche engines. But they are cheap and reliable compared to the Audi engines. And they use a similar Bosch Motronic version.

Regards from germany
Markus

[Smallblock454]

The 722.653 is the 996 transmission. It can handle up to 800 Nm of torque.
The 772.657 is the 997 trasmission. It can handle up to 920 Nm torque.

Both AT transmissions are built by Mercedes-Benz and run a MB AMG software.

I think the shoud fit to Mercedes M112 and M113 engines if you use the front torque converter housing and maybe the torque converter of the MB transmission. But i can not validate that. It's just an idea.

@ KRAM36: On your pitures is the torque converter missing.

[KRAM36]

Originally Posted by Smallblock454

@ KRAM36: On your pitures is the torque converter missing.

I just pulled those pics from an eBay listing.

http://www.ebay.com/itm/Porsche-911-996-Twin-Turbo-Transmission-Tiptronic-Automatic-2001-2005-A96-50-/171242163787?pt=Motors_Car_Truck_Parts_Accessories&hash=item27ded40e4b&vxp=mtr

Actually this is what mine should look like. The other was from a 911 and this one is from a Boxster. Looks to be more common to the 5 speed on the right.




Also looked at another Boxster Tiptronic and it had this on it.

[Gelbster]

1. Dismissing California Smog rules is short sighted. Other States seem to blindly adopt them. So I suggest the availability of a CA smog compliant engine is vital.There are Audi V8 Ca smog compliant engines.
2.The insurance issue is another hurdle. If an insurer 'sees' a massive increase in engine displacement and power it will be prohibitively expensive to insure . The alternative is to 'forget' to tell them .That is the same as no insurance +fraud+ unlimited personal liability.Not good if you own a home.
There is a milquetoast solution:
The Audi A6 3.0/ 3.2l 32 valve FSI V6 from the A6.255hp. On paper it would pass Smog,be insurable, fit easily(shorter but 1/2" taller than the 3.2 flat 6),same bolt pattern?
It may not be exciting but it is practical and highly tuneable.

[KRAM36]

I don't think my insurance company would care less about what engine is in it. They pretty much base insurance off your age, driving record and the value of the car.

[Gelbster]

Try calling your insurance company and telling them what you are planning to do.Then report back with the name of the insurance company if they "don't much care". As the owner of an over-powered hot rod car ,I would love to know. You can get away with it on much older cars as 'agreed value/collector car/less than 3000milesper year type policies-as I do with full disclosure.But not on a regular insurance policy.
That means in effect you are uninsured if you do not declare complete details of the modification in writing to the Insurance Co.
Just google Insurance+disclosure material+fact,insurance fraud.
Penalties For Driving Without Insurance - Auto Insurance Guide at DMV.org: The DMV Made Simple
There are a few very specialized Insurance Brokers who do this work ,but they are very expensive.
It is misleading to suggest otherwise.

[KRAM36]

Originally Posted by Gelbster

Try calling your insurance company and telling them what you are planning to do.Then report back with the name of the insurance company if they "don't much care". As the owner of an over-powered hot rod car ,I would love to know. You can get away with it on much older cars as 'agreed value/collector car/less than 3000milesper year type policies-as I do with full disclosure.But not on a regular insurance policy.
That means in effect you are uninsured if you do not declare complete details of the modification in writing to the Insurance Co.
Just google Insurance+disclosure material+fact,insurance fraud.
Penalties For Driving Without Insurance - Auto Insurance Guide at DMV.org: The DMV Made Simple
There are a few very specialized Insurance Brokers who do this work ,but they are very expensive.
It is misleading to suggest otherwise.

There is nothing in your link that suggest putting a V8 in a Boxster will cause you to not have insurance. Insurance is cheap on these cars, you can do just as much damage with the current engine that's in. A V8 isn't going to matter.

[Gelbster]

"Just google Insurance+disclosure material+fact,insurance fraud."
What did you find?

BTW,I actually agree with your rationalization about the V8. But that is irrelevant.
All that matters is the Insurance Co. policy. And that is very clear regarding 'material facts'.

[KRAM36]

Originally Posted by Gelbster

"Just google Insurance+disclosure material+fact,insurance fraud."
What did you find?

BTW,I actually agree with your rationalization about the V8. But that is irrelevant.
All that matters is the Insurance Co. policy. And that is very clear regarding 'material facts'.

So since I'm putting a 987 air box, 996 76mm TB and a 997 Distribution T in my car, also did the crios mod, but will be putting headers, cat delete pipes and a Borla muffler on my car I need to notify my insurance company of this?

[jarrodblake]

Any more info on the swap? will you be making the independent throttle body assemblies?

[bc993]

Sure wish something was going on on the Audi V8 front in addition to the LS swap. Just seems a bit cleaner with no KEP adapter, axle geometry a bit more inline to stock etc. Although following LS376 trials and tribs with the Renegade Kit (which is a LONG way from being a kit) is great fun. Can't wait to see John fire that baby up as it's getting close. Nerv any progress, news anything ????

[WillH]

Originally Posted by bc993

Sure wish something was going on on the Audi V8 front in addition to the LS swap. Just seems a bit cleaner with no KEP adapter, axle geometry a bit more inline to stock etc. Although following LS376 trials and tribs with the Renegade Kit (which is a LONG way from being a kit) is great fun. Can't wait to see John fire that baby up as it's getting close. Nerv any progress, news anything ????

+1
The six is still running strong but when it dies I want this. Mrmiatanuts boxster sounds awesome
V8 Porsche Boxster Video by mrmiatanut | Photobucket