I asked a local German auto mechanic who specializes in Porsches if he would install my VF 510 supercharger system. Here's what he said:

"I have seen many of these products over the years and although they will increase engine power, but really all they do is decrease the life of the engine. These engines are too fragile to be increasing engine pressure. Also when the ECU is re-flashed by aftermarket companies they will no longer allow ready codes to be set, meaning the vehicle will no longer pass DEQ emissions. The other issue is that premium fuel at the pump will need an additive to be compatible with the increase of compression in the engine."

My understanding is that these engines can take the pressure that my 3.8L is the same engine that the Turbo S has. I also thought it would pass emissions and that it did not need an additive just 91 octane or above.

Thoughts???

 

he makes it sound like any flash disables readiness capability, which is definitely not true

' when the ECU is re-flashed by aftermarket companies they will no longer allow ready codes to be set, meaning the vehicle will no longer pass DEQ emissions'

personally i dont think its a good idea adding FI to a car with an engine that wasnt designed for it but plenty of people have done it, i would think that it probably does decrease the life of the motor but dont have any evidence to back this up

 

yes and no. does FI decrease engine life? yes. will a chipped car pass emissions? yes. does your car have the same engine as a turbo s? no. turbo s engine is DFI.

 

If you have a 2006, your engine is not the same as the Turbo S

 

thank you for the insights. i was mostly concerned with not being able to pass DEQ. My understanding is that the engine can handle it but maybe it won't last as long. If Porsches can last 200k and mine lasts 175k i could live with that. i'm at 57k now and plan on selling when i hit 100k.

 

I am at 78k in my 06. I'd be willing to be your beta test if you send me the supercharger I'll send you some selfies of me smiling at the rush when I hit the gas.

 

You should be able to pass emissions, plenty of people on 6speed with SC and TC. Mine even passed w/o cats until they visually inspect it and I failed on the visual. I've had mine for 4.5 years now w/o an issues. I get free quarterly inspections and I take it to check and they said it looks perfect every time. I'm not a bit worried about it.

 

If I am not mistaken, I believe that the 06 Turbo S engine is based on the 3.6L Metzer block used in the GT1. Not the same block as found in a Carrera S.

 

The 2007-'09 Turbo's use the MEZGER engine (specifically the M97.70) while the '10-'12 Turbo/Turbo S use a newer MA170/MA170S engine. Neither engine has anything in common with the M97.01 engine in our '05-'08 C2S's other than the later engines displacement.

 

From a local Porsche head mechanic trained in Germany..."for turbo, the compression needs to be lowered. Superchargers do not require lower compression. In Calif., unless the unit has CARB sticker, you won't get it registered even though it passes the sniff test."

And yes, chargers tend to lessen the life a little bit!

 

I have a RUF R-Kompressor SC on my 997.1 3.8 C2S. RUF believes that the compression of a normally aspirated non forced induction engine should be lowered a bit and they do a neat trick where they use thicker head gaskets when installing their kits. This creates a little more space at the top of the piston's compression cycle consequently lowering the compression of the engine. Their upgrade is substantial and not just bolting some parts onto a normally aspirated engine. They also do a thorough engine analysis and will decline to install it on cars that don't meet their pre-install conditions. Attached is a photo set of what's included in the R-Kompressor kit. Any of the parts shown in a color are different from the OEM engine parts. All of the above is why the RUF kit costs north of $30k. Would I install someone else's SC kit on a NA engine - personally I would not, I also bought my car with it already installed from the PO and although it is absolutely awesome, extremely unique, and I wouldn't trade it for any other 997 or 991, I also wouldn't pay $30k to have it added to a 997. By the time you pay to have any normal SC EVO, TPC, etc) added, your getting close to used 997 TT $ and that's the safer choice for serviceability and resale, so I'd recommend going that route.

 

ruf seems like a company that really sweats the small details.

 

They are. They're as known for that as they are for under reporting their HP #'s

 

Sounds like you need to find another mechanic.