Porsche 997 AWD V8 Turbo
Discussion
Hi, My name is Angus (Goose) originally none on PH name Argoose but for a long time was very ill but like all petrolheads I am back and wanted to say hello with this.
I am not a business I am a private developer that enjoys building cars. This is not my first LS Conversion I have modified a number of cars using the LS1/LS3 power plant. My first project car was a TVR Griffith, which was done over seven years ago by a developer in stoke.
But have always wanted to do a Porsche over two years ago I started investigating the 997. Why, well it’s no secret that Porsche have had lots of problems with their engines. I was shock at the cost and the more research I did the more I wanted to do this project. As we are aware from discussions with the US this is the first 997 to have a LS conversion.
Project Car
Purchased 997 C4 2006 from Porsche specialist with a problem engine. Sold the engine to nice chaps at Hartech so nothing is wasted. We have used the existing gearbox with an adapter plate and the existing AWD system. We have continued to use all the existing instruments and Porsche engine management systems but have removed all the Porsche ancillaries. We lost so much weight from the removal of the Porsche engine and ancillaries that we had to fit smaller springs at the rear so that the car sat as before.
A standard LS3 with a good road/race cam can give around 520BHP with great torque and good economy. In addition to this we have added a turbo and we are looking for around 600bhp. Craig at Dyno Torque has carried out all the development work with testing and tuning at Emerald.[url]
|https://thumbsnap.com/AndZNjLD[/url]
I am not a business I am a private developer that enjoys building cars. This is not my first LS Conversion I have modified a number of cars using the LS1/LS3 power plant. My first project car was a TVR Griffith, which was done over seven years ago by a developer in stoke.
But have always wanted to do a Porsche over two years ago I started investigating the 997. Why, well it’s no secret that Porsche have had lots of problems with their engines. I was shock at the cost and the more research I did the more I wanted to do this project. As we are aware from discussions with the US this is the first 997 to have a LS conversion.
Project Car
Purchased 997 C4 2006 from Porsche specialist with a problem engine. Sold the engine to nice chaps at Hartech so nothing is wasted. We have used the existing gearbox with an adapter plate and the existing AWD system. We have continued to use all the existing instruments and Porsche engine management systems but have removed all the Porsche ancillaries. We lost so much weight from the removal of the Porsche engine and ancillaries that we had to fit smaller springs at the rear so that the car sat as before.
A standard LS3 with a good road/race cam can give around 520BHP with great torque and good economy. In addition to this we have added a turbo and we are looking for around 600bhp. Craig at Dyno Torque has carried out all the development work with testing and tuning at Emerald.[url]
|https://thumbsnap.com/AndZNjLD[/url]Edited by DT8R on Thursday 18th May 10:22
I think this is one of those things that people have a perception of how it will be, i.e it will mess with the handling and is in someway wrong but based on what I have read it seems to be a good upgrade, even before adding turbos.
After all, its not like there is a shortage of 911's with engine problems, is the cost of swapping for an NA engine comparable to getting the original engine rebuilt ?
After all, its not like there is a shortage of 911's with engine problems, is the cost of swapping for an NA engine comparable to getting the original engine rebuilt ?
J4CKO said:
I think this is one of those things that people have a perception of how it will be, i.e it will mess with the handling and is in someway wrong but based on what I have read it seems to be a good upgrade, even before adding turbos.
After all, its not like there is a shortage of 911's with engine problems, is the cost of swapping for an NA engine comparable to getting the original engine rebuilt ?
Thanks so much for highlighting this it is a conversion that is controversial but the developer has done a fantastic job and I have been delighted with the cars performance it's amazing. People have a real perception of what right or wrong and get genuinely upset that someone would do this to a 997 and that will not change. Its the cost that makes this project really makes sense. When you start looking at basic engine rebuilds or replacement doing it right isn't cheap. I spent over a month using the donor car and getting quotes to just repair the existing engine and this doesn't even take into consideration the massive performance gains. After all, its not like there is a shortage of 911's with engine problems, is the cost of swapping for an NA engine comparable to getting the original engine rebuilt ?
If you then add performance gains then cost for a Porsche based solution can be very expensive but that's what people will pay. The Porsche LS conversion is not expensive if you want just to have your broken engine replaced with a brand new engine and ancillaries. This conversion make a lot of sense and will continue to make sense long after the Porsche engine is scrapped. Servicing any LS power plant is not expensive and is very easy on the 996/997 conversion.
Then we you consider the basic performance gains then here is some basic s comparisons. The current 997 GT3 RS is Curb weight 1360 kg (2998 lbs) and has a performance of 493 bhp / 368 kw @ 8250 rpm with rear wheel drive. The 997 Turbo S Curb weight 1585 kg (3494 lbs) and is AWD with 523 bhp / 390 kw @ 6750 rpm. We have developed a 997 LS3 V8 Turbo Curb weight 1396 kg (3077 lbs) and AWD with over 600 bhp/447kw.
Cost of LS performance is really cheap in comparison.
Edited by DT8R on Wednesday 10th May 02:18
This is a fascinating project and I am very intrigued to know how it pans out. Is this a manual gearbox or a tiptronic / pdk?
I know RUF did a V8 911 with the RGT-8, but I know very little about it really. I would love to see some videos of this when it's all sorted. I bet it sounds epic!
I know RUF did a V8 911 with the RGT-8, but I know very little about it really. I would love to see some videos of this when it's all sorted. I bet it sounds epic!
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