Just got a hold on them again, they tell me it is because of the turbo model. I think they might have misinterpret the mail. I said TD04, it seems that it's either not our turbos or they call it something else like they say here (These turbos are the IHI size equivalent to the KKK 16/24 – as a reference). I managed to tell them that this is just a compressor and turbine upgrade on the stock CHRA they kept asking if it's the 700 series, which turbos are these anyway, i told them is the same upgrade they perform and is just the same software programming i need. They told me that tomorrow they'll let me know when they speak to the engineers in Germany.

 

Ok guys i found this:

http://www.ardideas.com/TD04HL-20T-P...ade_p_316.html

Seems that 20T is possible but with 11 Blade Turbine... Please let me know just waiting to order this.

 

Fvd is a 20T ( the onr with 700+ powerkit ) , the 650hp powerkit is a 19T . fvd in my opinion is bettet because they change the spring in the turbocharger as well in order to push 1.2 bar while the competitors change only the compresor .

 

Well BAD NEWS.... Just talked to FVD and there is nothing they can do software wise for the 2011-2015 Cayenne Turbo's. My list of mods are not supported. The reason being:


FVD.US to the FVD.DE German Engineers question #1:

This client has a 2011 958 Cayenne Turbo with a big list of mods. Also do you have any idea what kind of power he would have?

- 82mm Throttle Body
- 82mm IPD Plenum from the 957 turbo s (couldn't fine the exact part number so i guessed it is IPD 57282)
- BMC Air filters
- Agency Power Diverte Valves (I was told down here i could use BOV valves, but i'm concerned on the recirculating air)
- Turbos Compressor Wheels TD04-20T
- Turbos Turbine Wheel 9-Blade TD04
- ARD Adjustable Wastegate Actuator
- FVD 100 Cell Catalytic Converter
- FVD LAM SIM
- FVD 958 618 90*** (Will Order Soon)
- Fabspeed Cat Bypass Pipes
- Supersprint Section 2 Center Pipe (X-Pipe)
- Fabspeed Exhaust System

ANSWER #1 from FVD Engineers:

"we don’t have a software file for this and would need the truck on the dyno, he wanted us to check if the module can handle larger turbos. They confirmed not having a file for these turbos. They are the same as the 957 turbos but we have not had a 958 Cayenne Turbo on the Dyno with them and currently it is not possible to program for larger turbos with the module. The Piggy Back Module that we have for the 958 Turbo cannot support the turbos. Sorry".

ANSWER #2 from FVD Engineers:

"The unit cannot adjust for the larger values (fuel, timing, boost) for the turbos. If we were programming right on the ECU like the 957 Turbo it would not be an issue".

ME:

Does this mean that I can upgrade everything else but not my turbos? Correct?

ANSWER #3 from FVD.US Representative:

"Correct. We can sell the module to you but it cannot support the turbos.

The 958 Cayenne Turbo has the latest tuning protection on it from Siemens. The only way for us to program that vehicle currently is via the module. The module only has certain parameters that it can manage. Larger turbos cannot be accommodated currently.

Very Sorry but we cannot assist you with a program that includes the larger turbos".



With answer #3 comes a sudden joy and a deep sadness a couple of lines later:

THE JOY - The only way for us to program that vehicle currently is via the module.

THE SADNESS - The module only has certain parameters that it can manage. Larger turbos cannot be accommodated currently



The answer is that for the stock turbos they provide you a software piggy back unit which will yild 40HP + 70TQ and that's about it. I talked to GIAC and they are going to talk to the engineers. Will let you know the answer as soon as i get a hold with them again.

I talked to my best friend and he knows a friend of a friend who did custom tune some 911's, will try to get in touch with him also and see if we can custom tune on a dyno here in my place, will try to keep you posted guys.

What a nightmare!!!

 

Did the 957 turbo S manifold fit in the 958 ? And you are using the 82mm throttle body ipd plenum ? But how ? The sensors in the plenum are totally different ?

 

I did not change the manifold, just the throttle body and yes it does fit the 958 without the need to replace the manifold. Is a direct fit, even the sensors. I saved $1,000+ thanks to the porsche tech who told me there was no need to change the manifold, just the throttle.

I got it cheap on eBay $197

 

Can you post a picture please ? i wonder if it can be done the same to the panamera .

 

It will fit 100% as long as it is the 4.8 engine. I was told by the techs chief which is my friend. I'm getting the turbo s software for free so will first try with that and see what happens.

Another thing, I talked to IPD and they told me to stick with the stock 82mm plenum because it's as good as theirs on that size. Also they do not have stock on the 82mm since porsche is using the 76mm throttle even on the Turbos S. Thanks to them I saved $800 bucks.

If you're getting the 82mm throttle body keep in mind it'll take some time to feel the difference since our ECU's are adaptive. But it's better to get a software tune for real power if that's the case. Anyways the throttle body is not expensive as I said got mine on eBay for $198.

One last thing if anyone is thinking on buying the throttle let me know to post the part number for the stock 82mm plenum.

 

and here are the pictures as promised

Oh and in the pictures the plenum is not secured in place, check the screws. That is a tricky part that took me 1+ hour because one screw fell through the engine and I had to loosen 3 screws on the skid plate to put my hand through and get it.

The new 82mm Plenum is longer and stickes further out as you can see.

 

Totally unrelated because this is a fine thread!

On another note, I about shart myself laughing when I read this Hmmm, plastic plenum just as good as theirs? guess thats not the case on the 955 plenum, you know, the one that gives you 30ish hp.......

"I talked to IPD and they told me to stick with the stock 82mm plenum because it's as good as theirs on that size. Also they do not have stock on the 82mm since porsche is using the 76mm throttle even on the Turbos S. Thanks to them I saved $800 bucks."

 

Well the stock plenum is made of PLASTIC, IPD is aluminum I don't see the joke on this. I do not understand why is unrelated since I'm posting based on the mods. The 957 4.8L engine is the same as the 958 4.8L plus the Panamera 4.8L.

That's the answer I got on the phone from the IPD representative, give them a call and tell them you need an 82mm plenum for the 82mm throttle on the turbo s. And yes is their recommendation which saved me $800 bucks since the stock one will hold as good as the aluminum one with higher boost.

 

Thank you very much ) . I will just have to check the plenum tomorrow becauase some things have changed from 957 engine to panamera TT engine . The plenum from 957 didnt fit because of the maff and some lines and stuff which was totally different

 

Yes but minor stuff not to be worried.. My new turbo s plenum is the one from the 957 turbo s. Here it is finally assembled.















Plenum part number: 955 110 046 60
Throttle part number: 997 605 116 01

 

Later you can have a custom y- pipe as well because the diameter of y-pipe and intercooler pipe is to small for the requirement of bigger throttle body . I think you will push a little more than 750 hp

 

Right now I'm talking to Austin @ Vivid Racing to finish the ECU part. Is the only thing missing.

Talked to my best friend and we might get a custom Y-Pipe 2.5 inches. I feel bad because Agency Power just focused on the Panamera and not also the Cayenne. Their carbon y-pipe us great. But space is limited. And I see the rubber expanding when WOT at idle

Space picture