Porsche 997 AWD V8 Turbo

[LanceRS]

dom9 said:

Fantastic - on my fantasy engine conversion list!

Would love an NA LS3 997 C4S with the aerokit in Cobalt.

Not that I've thought about it much

I'm with you.

Op,this is brilliant. More please.

[Andy665]

Really does turn the 911 in to a true everyday supercar, love the lateral thinking applied to it

[GrantD5]

What a monster

[B3ALP]

Phwooooooooooooooooooaaaaaar

Outstanding work sir

[DT8R]

HybridAero: We have focused on performance on this car but anyone building an LS 996/997 can expect better fuel consumption than the 3.6 or 3.8 I have had LS getting 30mpg. However this car is running bigger fuel pump and injectors so fuel consumption will not be great but we will try to get improvements were possible.

Mike335i: It’s a manual

Veeayt: We had originally considered a C2 but because this was going to be an all round day to day car I decided to play with AWD. Will be interesting to see how it develops. To date it’s been awesome but currently having its final tune up to full power 600bhp and so things will get interesting.

Thanks for you feedback and hope I can help with any more questions. The plan is to have it as a daily car and over time develop the car and share its evolution. But out the box its very good and soon to be back from Emerald now running at full power 600bhp.

One this I can't share yet is the sound track and that is mental its the first car since owning TVR's that stops people in the streets and puts a smile on peoples faces.

Edited by DT8R on Wednesday 10th May 11:17

[LordGrover]

Like the look of this... watching with interest.

PS. Old account here: Argoose.

[DT8R]

LordGrover said:

Like the look of this... watching with interest.

PS. Old account here: Argoose.

Thanks Ian haven't seen this in years

[Chris Stott]

So say the engine in my 996.1 C2 goes pop, and I'm faced with a potential £10-12k bill for a Hartech rebuild... broadly, how much would it cost to stick a non-turbo V8 in it?

[lestiq]

Absolutely epic, I want one. Good on you. Enjoy

[lewisf182]

Chris Stott said:

So say the engine in my 996.1 C2 goes pop, and I'm faced with a potential £10-12k bill for a Hartech rebuild... broadly, how much would it cost to stick a non-turbo V8 in it?

+1.

Would be interested in a rough guide price... it almost makes me want to buy a broken 996 and do this if the price is decent.

[DT8R]

Chris Stott said:

So say the engine in my 996.1 C2 goes pop, and I'm faced with a potential £10-12k bill for a Hartech rebuild... broadly, how much would it cost to stick a non-turbo V8 in it?

Well if we looked at a brand new crated LS3 and ancillaries around 14k

Thats engine will have 480BHP standard which is a lot more than the 997 GT3 came with and you will have also removed a lot of weight from the car as the LS is significantly lighter in weight.

Edited by DT8R on Wednesday 10th May 13:19

[lewisf182]

DT8R said:

Chris Stott said:

So say the engine in my 996.1 C2 goes pop, and I'm faced with a potential £10-12k bill for a Hartech rebuild... broadly, how much would it cost to stick a non-turbo V8 in it?

Well if we looked at a brand new crated LS3 and ancillaries around 13k

It's an interesting proposition in that scenario then. How would a 997'd LS3 conversion be priced in the market? A hartech rebuild bolsters values (nowhere near the rebuild price though) so wonder how it would work for a 'better' overall engine - more power and better economy. It's an interesting question but don't wanto hijack this epic thread!

[likesachange]

Very interesting build!

lewisf182 said:

It's an interesting proposition in that scenario then. How would a 997'd LS3 conversion be priced in the market? A hartech rebuild bolsters values (nowhere near the rebuild price though) so wonder how it would work for a 'better' overall engine - more power and better economy. It's an interesting question but don't wanto hijack this epic thread!

Good point.. What warranty does the hartech rebuild offer? and does a new crate engine offer a warranty (id imagine so?) ...

Until a company decides to offer this as a proper upgrade and starts to get recognised as a "good" upgrade then I guess the value will be not close to a 911 with the hartech rebuild even with the much improved performance gains.

[DT8R]

lewisf182 said:

It's an interesting proposition in that scenario then. How would a 997'd LS3 conversion be priced in the market? A hartech rebuild bolsters values (nowhere near the rebuild price though) so wonder how it would work for a 'better' overall engine - more power and better economy. It's an interesting question but don't wanto hijack this epic thread!

Well if we looked at a brand new crated LS3 and ancillaries around 14k

Thats engine will have 480BHP standard which is a lot more than the 997 GT3 came with and you will have also removed a lot of weight from the car as the LS is significantly lighter in weight.

[Magic919]

The LS3 is 430HP standard, so 480 will be with a hotter cam.

[DT8R]

likesachange said:

Good point.. What warranty does the hartech rebuild offer? and does a new crate engine offer a warranty (id imagine so?) ...

Until a company decides to offer this as a proper upgrade and starts to get recognised as a "good" upgrade then I guess the value will be not close to a 911 with the hartech rebuild even with the much improved performance gains.

Interesting point I have also been investigating getting a warranty company to support this and until I have a finished car that still not something thats an option. But will keep on working at this

[DT8R]

Magic919 said:

The LS3 is 430HP standard, so 480 will be with a hotter cam.

Take a look at Partsworld Performance engine options I have just highlighted the base from the list but you are correct a standard one is 430hp

Edited by DT8R on Wednesday 10th May 13:36

[matrignano]

How's the balance, handling and traction affected by the engine swap?

Having a lighter but taller engine sitting on top of the rear wheels would throw the balance forward and
upwards I guess, which means poorer traction but potentially more "benign" handling (less pendulum effect)?

[DT8R]

matrignano said:

How's the balance, handling and traction affected by the engine swap?

Having a lighter but taller engine sitting on top of the rear wheels would throw the balance forward and
upwards I guess, which means poorer traction but potentially more "benign" handling (less pendulum effect)?

All I can say in response is we have not experience any off this. The car is very well balanced and they have been track testing LS3 in 996 in the US with great results, We have plans to do much more testing and some track but to date we have had great results. Remember the LS is a lot lighter than the Porsche 3.6 3.8 and isn't top heavy.

[shalmaneser]

Would be interesting to see the before/after weight split with this conversion.