Guys,

Unfortunately I have nothing about displacement, just that the crankcase is evolution from 996 TT, GT2, GT3 crankcase and that it's dry sump.

This is just a guess but I don't think the prices will be much higher than what 996 versions were.
If you take 996 vs. 997 other models as an indication, it can't be that much off I think.
But as I said, just a guess.

Hp numbers, that's just too much speculation there, we'll have to wait but I think Porsche generally does well with less hp than what Ferrari does.

 

I think the price increase will be around 5% ($5k US). This is what is forecast for the 997TT also...

 

Given that the current GT1 derived crank case can accomodate 3.8l (just look at the manthey tuning kits etc), would it not be possible for Porsche to do this OEM?

Doug H, I agree with you on the 997 GT3 looks

 

It's been done by the factory too (early 90's with the 964RSR racer and in 1995 with the 993RS street car).

 

Having said that, I bet current emissions standards blow that idea right out the water...

 

It's being done right now with the engines in the Fabcar DPs. Although those are 3.9 litres, not 3.8.

Greg A

Edit: I had the wrong displacement in mind.

 

The 993 Club Sport (road car) had the 3.8 engine. I don't see how a displacement increase would effect emissions though. Fact is the current GT3 3.6 engine makes a lot more power than the 3.8 air cooled version in the 993 RS and Club Sport. Perhaps there is another weak link in there someplace?

Best,

 

That's true. There was a factory powerkit (RoW only) that increased any 993's power to 300hp and dispacement to 3.8L The weak spots in there someplace were the 2-valve heads, the lack of Ti Conrods, and a redline 1,400 rpm lower

 

Mahle is the OEM manufacturer of the pistons and cylinders for the GT3 and they make the 3.8 kit for Manthey and FVD as well. Mahle also made the pistons and cylinders for the 3.8 liter 993 RS.

As I pointed out before, if the parts to make a 3.8 are in production by the OEM, it should be easy for Porsche.

The displacement increase from 3.6 to 3.8 liters is 5.5%, if the specific output (HP/Liter) could be kept the same, this would imply a HP of 401 HP in a 3.8 liter GT3.

 

BTW, it wasn't a powerkit that made the 993 RS a 3.8, they were a 3.8 to begin with.

The 3.8 powerkit was to convert a normal 3.6 993 to 3.8 RS specs.