New-ish 2013 CTT owner - build thread
#1
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New-ish 2013 CTT owner - build thread
Hi y'all,
I've been on 6Speed for about 6 years, but have been spending quite a bit more time on here lately since the forum activity is much higher here!
Once upon a time I had a 2006 CTT that was totaled out from a bad pano roof replacement by a dealership (dealer super glued part of the frame, rain/water leaked through the entire headliner and into the spare tire area, ruining all electricals). I went different directions with vehicles over the 5 years since, but as of Christmas 2017 I picked up a well optioned 2013 CTT from Utah. I was hoping for White/Luxor combo, but this was too good of a deal to pass up.
She had all my must haves - gloss black trim, ventilated seats, Turbo II's, full Sport Design package, tow package, walnut trim, etc.
I was so excited to have another CTT, I started buying upgrades before I even took delivery.
So far I have done all the basic power upgrades - Hank's secondary cat bypass, Fabspeed exhaust, and Fabspeed tune.
Aesthetically, I put in new smoked LED side markers, replaced the aluminum hatch trim with gloss black, de-badged the PORSCHE logo and added a 993 graphite "Turbo" in its place, and a new hood crest from Carrera East Studios.
I'm closing on a new build home here in Austin in a few weeks, so everything with the pig is on hold until I get settled in. I look forward to sharing my build with y'all, happy to share my experiences and helpful tips on installing any of this stuff. Cheers!
To do list:
Turbo S plenum and custom built Y intake piping from throttle body to intercoolers (maybe intercooler upgrade once I spend a Summer here in Austin).
VS Forged wheels in dark brushed titanium - can't decide between 21" & 22", but will likely wait until the tires are done on the Turbo II's.
Tinted front windows to match, and tint the headlights & tail lights (either 50% or 70% tint).
I've been on 6Speed for about 6 years, but have been spending quite a bit more time on here lately since the forum activity is much higher here!
Once upon a time I had a 2006 CTT that was totaled out from a bad pano roof replacement by a dealership (dealer super glued part of the frame, rain/water leaked through the entire headliner and into the spare tire area, ruining all electricals). I went different directions with vehicles over the 5 years since, but as of Christmas 2017 I picked up a well optioned 2013 CTT from Utah. I was hoping for White/Luxor combo, but this was too good of a deal to pass up.
She had all my must haves - gloss black trim, ventilated seats, Turbo II's, full Sport Design package, tow package, walnut trim, etc.
I was so excited to have another CTT, I started buying upgrades before I even took delivery.
So far I have done all the basic power upgrades - Hank's secondary cat bypass, Fabspeed exhaust, and Fabspeed tune.
Aesthetically, I put in new smoked LED side markers, replaced the aluminum hatch trim with gloss black, de-badged the PORSCHE logo and added a 993 graphite "Turbo" in its place, and a new hood crest from Carrera East Studios.
I'm closing on a new build home here in Austin in a few weeks, so everything with the pig is on hold until I get settled in. I look forward to sharing my build with y'all, happy to share my experiences and helpful tips on installing any of this stuff. Cheers!
To do list:
Turbo S plenum and custom built Y intake piping from throttle body to intercoolers (maybe intercooler upgrade once I spend a Summer here in Austin).
VS Forged wheels in dark brushed titanium - can't decide between 21" & 22", but will likely wait until the tires are done on the Turbo II's.
Tinted front windows to match, and tint the headlights & tail lights (either 50% or 70% tint).
#3
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Thread Starter
No coolant pipe issues in 958's, not even in 957 generation models. The only coolant issues in Cayennes were in the first generation models (955), and that's because the pipes were plastic and would crack due to heat, not because they separate (like 911 GT1 block engines are prone to doing). There's never any need to pin coolant pipes in a Cayenne, just replace the plastic pipes with aluminum.
I hope this answers your question!
I hope this answers your question!
#4
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No coolant pipe issues in 958's, not even in 957 generation models. The only coolant issues in Cayennes were in the first generation models (955), and that's because the pipes were plastic and would crack due to heat, not because they separate (like 911 GT1 block engines are prone to doing). There's never any need to pin coolant pipes in a Cayenne, just replace the plastic pipes with aluminum.
I hope this answers your question!
I hope this answers your question!
There are two weak points on the V8 958 series. The pipes going into the thermostat housing (front of the engine behind the water pump, under the intake) on 2011-2015? are glued in. They've been known to pop out of the thermo-housing causing a massive sudden leak. The fix is either to pin and epoxy them or replace the housing/pipe assembly with the current one, where the pipes are bolted to the housing. Another leak possibility is a fitting on the back of the rear coolant bridge between the two cylinder heads. Has a glued in fitting that comes unglued. Big leak - not quite massive - but bad enough to require a flat-bed to get home. The fix is - re-epoxy it, or drill/tap the housing/pipe for a setscrew locking it in place, or the dealer way - drop the engine and replace the coolant bridge with the current model where the fitting is threaded into the housing. One of our members did thread the housing on his and made up a custom fitting to screw into the housing. Whatever is done - if it's done engine-in, it's a PITA since it's below the high-pressure-fuel-pump, which has to be R&R'd for clearance to work.
Note that besides the bad coolant pipes on the 955 series, the 957 V8 and V8 turbo share these same possible leak sources. I'm not certain when exactly Porsche went to the screwed or bolted in fittings - sometime around 2015 sounds about right.
#5
RL Community Team
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sjt,
Looking forward to following along. I'll be installing a Fabspeed tune into my 957 TTS today to make the most of similar mods you've done to yours.
Looking forward to following along. I'll be installing a Fabspeed tune into my 957 TTS today to make the most of similar mods you've done to yours.
#6
Rennlist Member
Thread Starter
Hey Don,
I read the thread about the t-stat housings and the pipes not being coarse enough for the glue to hold, but it seems as if it's a much, much less common issue. Further, I could be wrong but I haven't seen anybody go as far as pinning the pipes together, just filing down the inner housing to rough it up and use J-B weld or similar epoxy. But, you are correct and I did misspeak in regards to 958 coolant pipes!
Petza,
I've been following your widebody build for some time now, it's coming along really nice! I'm actually curious to see how the Atturo tires perform for you. I've been so torn between 21" & 22" wheels because it's basically a $500 difference in tire options, but if those are a reliable & comfortable setup, I'd be much more inclined to stay with 21" when I do order new wheels.
Cheers!
Shane
I read the thread about the t-stat housings and the pipes not being coarse enough for the glue to hold, but it seems as if it's a much, much less common issue. Further, I could be wrong but I haven't seen anybody go as far as pinning the pipes together, just filing down the inner housing to rough it up and use J-B weld or similar epoxy. But, you are correct and I did misspeak in regards to 958 coolant pipes!
Petza,
I've been following your widebody build for some time now, it's coming along really nice! I'm actually curious to see how the Atturo tires perform for you. I've been so torn between 21" & 22" wheels because it's basically a $500 difference in tire options, but if those are a reliable & comfortable setup, I'd be much more inclined to stay with 21" when I do order new wheels.
Cheers!
Shane
#7
RL Community Team
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Petza,
I've been following your widebody build for some time now, it's coming along really nice! I'm actually curious to see how the Atturo tires perform for you. I've been so torn between 21" & 22" wheels because it's basically a $500 difference in tire options, but if those are a reliable & comfortable setup, I'd be much more inclined to stay with 21" when I do order new wheels.
Cheers!
Shane
Cool. I'll post some impressions of the tires in my thread once I have some experience with them. I actually discovered that I had a manufacturing issue with the front spacers I was using when I installed the front wheels - knew as soon as I pulled out of the garage and turned the wheels, but drove around the neighborhood to be sure. The hub-centric flange on that pair was manufactured incorrectly and instead of being straight and the needed 71.6mm, it starts at that dimension, but is tapered and gets as wide as 73.56mm where it meets the face of the spacer. This was preventing the mounting face of the wheel from properly meeting the mounting face of the spacer, so the front wheels were actually wobbling on the hub-centric flange even though the bolts were torqued to 118 ft.lbs. Just glad it wasn't a wheel manufacturing issue as that would be much more expensive and time consuming to correct.
So I had to throw the OEM wheels back on for the time being while they manufacture me a pair of replacement spacers, and am hoping to have them back by this weekend. What stinks is that I bought 4 pairs - 25mm, 30mm, 35mm, & 40mm so I could fine tune the stance of the 22"x 12" wheels in the front and rear to get it exactly how I want. I ended up using the 25s in the front and the 30s in the rear and it's the pair of 25s that are bad - all 3 pairs of the others are fine. I could've moved the 30s to the front and run 35s in the back, but visually, that extra 5mm just doesn't look as good to me as I don't want the tops of the tires outside the wheel arches at all - with the 25s and 30s they're just inside with a straight edge across the face of the wheel (it touches the fender before the top of the tire).
If anyone needs brand new, never mounted 35mm or 40mm spacers to run normal width 10" wheels on their Cayenne but widen the stance, let me know - otherwise I'll be putting them up for sale in the Marketplace once I'm 100% sure on the 25s and 30s pairing.
In these pictures you can see the line where the spacer hub stopped going into the wheel hub and the marking on the outer circumference of the spacer mounting face and wheel mounting face. Also, if I tried to slip one of the other spacers inside the bad pair, they went in fine and mated flush, but if I did the opposite, the bad pair would bind up inside the hub of the good pair.
You can see the line on the flange where it stopped going into the hub of the wheel.
Gap between wheel mounting face and spacer mounting face when installed & torqued
Marking on outer circumference of spacer
Marking on outer circumference of wheel
Good spacer inside bad spacer
Bad spacer inside good spacer
Improper center bore measurement - should be 71.6mm
I've cleaned up the mounting face of the wheels and the tapers of the World Ti lug bolts that were in the front and am just waiting on the warranty replacement spacers to arrive.
Any build like this has it' challenges and issues as you go along - it's just a matter of identifying and then resolving the issue and moving on to the next step.
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#8
Rennlist Member
Thread Starter
22x12 is such an amazing size to have SQUARED! Since you're such a pioneer with the widebody, I'm sure you're having to do a lot of trial & error with simple things like wheel spacing. Glad you were able to find your issue before rolling at an unsafe speed.
I really like your wheel choice, since the dawn of time I've been a huge fan of concave wheels - as you can see from the photos of my past setups!
I'm really glad I have already chosen a wheel brand, and since they're one-offs I can choose front & rear offsets. I'll be shooting for the same exact wheel-to-fender fit as you have.
I really like your wheel choice, since the dawn of time I've been a huge fan of concave wheels - as you can see from the photos of my past setups!
I'm really glad I have already chosen a wheel brand, and since they're one-offs I can choose front & rear offsets. I'll be shooting for the same exact wheel-to-fender fit as you have.
#9
RL Community Team
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Good looking vehicles and wheels there. The Cayenne wheels are 22x12 with an et of 50. I knew I'd need at least a 25mm spacer in the front as the same offset as OEM wheels but 2" wider meant these would sit 1" further in and 1" further out. To get the inside clearance reestablished I'd need to push it out 1" or about 25mm which turned out to be perfect from both a clearance at full lock in both directions (even down to loading level) and from a looks perspective relative to the now wider arches. I don't think you could run the 12" width without some fender flares and have it look right (too much poke), but you could surely bring some 10s or maybe 11s out a little with the perfect custom offset and get what you want without needing any spacers, which is obviously preferable. The 315/30-22 tire is within 1% of the rolling circumference of the stock 295/35-21 tire so a good fit from the PSM and other electonic nannies perspective - I just picked 21" summer tires on the TPMS system and it was perfectly fine with that selection - no errors.
#10
Rennlist Member
Thread Starter
82mm Turbo S manifold & Y-pipe, Forge diverter valves, Beru coil packs & Bosch iridium plugs, and a good old fashioned oil change.
I do believe this will be close to the last HP upgrades I do on her. I already have the secondary cat bypasses, axle back exhaust, and the Fabspeed tune. Somewhere down the line I'd like to "maybe" put some efforts into custom intercooler to throttle body piping, but for now I think this will be enough to enjoy and just keep up with the maintenance from here on out. I'd like to get on a local dyno and get some baseline numbers, she's been loving these cooler Austin temps!
Doggo is too gassed from catching frisbees to help out this time, maybe the next oil change I'll put her to work!
Last edited by sjt0017; 10-28-2018 at 02:26 AM.
#11
Rennlist Member
great upgrades
82mm Turbo S manifold & Y-pipe, Forge diverter valves, Beru coil packs & Bosch iridium plugs, and a good old fashioned oil change.
I do believe this will be close to the last HP upgrades I do on her. I already have the secondary cat bypasses, axle back exhaust, and the Fabspeed tune. Somewhere down the line I'd like to "maybe" put some efforts into custom intercooler to throttle body piping, but for now I think this will be enough to enjoy and just keep up with the maintenance from here on out. I'd like to get on a local dyno and get some baseline numbers, she's been loving these cooler Austin temps!
Doggo is too gassed from catching frisbees to help out this time, maybe the next oil change I'll put her to work!
For those secondary cat. bypass which diameter you went for the HHR 2.5 " or the 3.00" ? thanks
#12
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Thread Starter
#13
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Great feedback , thank you
I went with 2.5”, Hank himself will tell you that there’s some drone in the 3” pipes. I live in Austin but I’m from Dallas and parents still live there. I make that trip quite often & couldn’t handle it with that hollow sound for 200 miles at a time. With the 2.5” I hear almost nothing in cabin regardless of driving style, but it sounds like a TT v8 should sound from outside the vehicle.
or just the 2.5" cat bypass only like you.
#15
Rennlist Member
What gains are to be had with the larger throttle body and manifold? Since this is a boosted engine I wasn't sure what kind of gains that would equate to since it's on the pressurized side.
Nice looking ride - the blue rocks (I should know )
Nice looking ride - the blue rocks (I should know )