2004 Cayenne 955 Turbo Upgrade Build Thread, Custom Manifolds, BW EFR 7163's
#227
Three Wheelin'
Thread Starter
#228
Three Wheelin'
Thread Starter
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Video's pretty much make everything better. The turbo system is pretty efficient. There is hope for this project and let me tell you, all forms of 15psi are not created equal. Started from the bottom now we here....
#229
Burning Brakes
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So you found a leak but still spraying boost out like I drank 4 espresso's!
Again, cheering you on J!
Thanks for all the updates and constitution to make something solid.
Again, cheering you on J!
Thanks for all the updates and constitution to make something solid.
#231
Three Wheelin'
Thread Starter
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![](https://cimg3.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1130/imag0033_14f63bd6ede9b933455d510b779add541cfafbb7.jpg)
Cowl drain some of you may not have realized was there.
![](https://cimg8.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1130/imag0031_c5ac6058f8058f73a08147de4281fedec2d71d7d.jpg)
Exhaust.
![](https://cimg5.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1130/imag0032_e76195ad9a5bcd0f79d51a77160984a84ab43765.jpg)
You would think that the entire drive-line would be centered in the chassis but far from it.
![](https://cimg2.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1130/imag0036_5f67e0b9dc9e64862b0681a8ba59a9f12f1e4695.jpg)
![](https://cimg0.ibsrv.net/gimg/rennlist.com-vbulletin/2000x1130/imag0035_83f12b00461fd9835cd8dd7e0eff8421e31bc1b5.jpg)
The Swain Tech white Lightning..... Swain told me the "dripping"? action is normal. They also told me that it would turn gray, and it has. Seems that the white layer of coating has become somewhat powdery or delicate. The bits look silver but I can assure you it is not the base metal. The coating is rather thick and under the white is gray and still hard as hell. I can tell you one thing, the stuff works. My underhood temps stay rather cool and I can do a pull and touch the manifolds immed.
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Dilberto (09-12-2021)
#234
Three Wheelin'
Thread Starter
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Anybody that tackles a Cayenne isn't soft in my book! The way I take the engine out the front is more work but it is much more manageable and I don't have to get an alignment after. Seriously i have a couple fasteners that literally take me like an hour each because I can only get like an 1/8th turn at a time and my hands get tired and cramp. VC gaskets in place are a biiiaatch and I actually made a tool for that lower rear pass side bolt
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Thank you sir!
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#235
Three Wheelin'
Thread Starter
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On a side note- after I got it all tore down I found that only my passenger side was leaking, and it was a lot. That makes me feel better as to that being the root cause of the boost oscillations.
In case anybody is wondering I din't put it all together to stage pictures, I had to mark and clock everything so that I can get it back together properly. With the multiple v-band flanges and angles this is extremely crucial. Moving forward I will be set for the future.
In case anybody is wondering I din't put it all together to stage pictures, I had to mark and clock everything so that I can get it back together properly. With the multiple v-band flanges and angles this is extremely crucial. Moving forward I will be set for the future.
#236
Rennlist Member
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Awesome stuff. Seems like you're really close to getting it dialed in. I know what you mean about "that drive," albeit with significantly lower HP in my case, it's a great machine when running right.
I discovered my upper control arm is shot on the driver's side. It's causing the inner edge of the tire to get chewed up. Am in the process of getting myself psyched up to do a full control arm replacement. Bolts all look much easier to access, so fingers crossed it goes smoothly....
Keep up the good work!
I discovered my upper control arm is shot on the driver's side. It's causing the inner edge of the tire to get chewed up. Am in the process of getting myself psyched up to do a full control arm replacement. Bolts all look much easier to access, so fingers crossed it goes smoothly....
Keep up the good work!
#237
Three Wheelin'
Thread Starter
![Default](https://rennlist.com/forums/images/icons/icon1.gif)
Awesome stuff. Seems like you're really close to getting it dialed in. I know what you mean about "that drive," albeit with significantly lower HP in my case, it's a great machine when running right.
I discovered my upper control arm is shot on the driver's side. It's causing the inner edge of the tire to get chewed up. Am in the process of getting myself psyched up to do a full control arm replacement. Bolts all look much easier to access, so fingers crossed it goes smoothly....
Keep up the good work!
I discovered my upper control arm is shot on the driver's side. It's causing the inner edge of the tire to get chewed up. Am in the process of getting myself psyched up to do a full control arm replacement. Bolts all look much easier to access, so fingers crossed it goes smoothly....
Keep up the good work!
#238
Rennlist Member
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Check out the Powerflex bushings. The stock upper control arm bushings are totally inadequate for this weight/capability of the vehicle. IMO, of course I think I am going to end up doing the whole array. Right now I just refuse to invest any more money until I get the tuning headed the right way.
#239
8th Gear
Join Date: Jan 2019
Location: Ottawa Ontario Canada
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Nice build looking forward to more pics and youtube vids on the build.
what you using to tune the truck and do you have any pics of the stock turbos ? Im picking up a 08 and im going to send the stock turbos out for a slight upgrade i heard they were VF43 turbos ?
what you using to tune the truck and do you have any pics of the stock turbos ? Im picking up a 08 and im going to send the stock turbos out for a slight upgrade i heard they were VF43 turbos ?
#240
Three Wheelin'
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I'm not the one tuning it but they use WinOLS.
08 957 series 4.8L uses tdo4's 18tHL.