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Old 07-13-2017, 03:33 PM
  #931
David Ewell
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Took about a year and half to get the 3.1 l complete, but now that it's done I'm very please with the performance. Only have 300 miles on the motor and yet to put it on the track, but excited for the first track day.

3.1 Build by SFR
S2 Block
Bored 106mm Darton dry sleeves
S2 Crank, polished, crossdrill
106mm Arias pistons
Pauter rods
Raceware head studs
Raceware main studs
S2 2.7 Head - 1mm oversize valvetrain with stainless retainers, keepers and race springs, ported and polished.
Wide-fire ring headgasket
Web Cam 274
OEM lifters
Precision 5858 journal bearing turbo
LR Turbo inlet Filter
SFR stage 1.5 intercooler (mounts in stock location)
LR 3X Oil Cooler
LR M-Tune
S2 Harmonic Balancer
996T Monoblock Calipers up front w/330mm Cayenne Slotted Rotors. Stock turbo rears cal.
Spec 3 Full Semi-Metallic Push Clutch w/mating Spec Steel Billet FW
AOR Trans
High Strung 44 Control Arms
M030 Sways
Bilstein Coilovers w/tenders #400 front/#600 rear
LR DPWG Manual Boost Control
3” Exhaust, test pipe, Maxnaflow
Recaro Seats
On order-SFR Stage 2 Header 4 into 1 w/Crossover pipe 321 S.Stl




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Old 07-16-2017, 01:27 AM
  #932
333pg333
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What ECU are you running this through and any dyno results?
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Old 07-16-2017, 07:45 PM
  #933
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Originally Posted by PF View Post
Mine looked exactly like yours and are said to be Ferroprint. Yes Bubbling is strange but to me a piston should resist engine oil. In this case Millers brake in oil and after that Millers CFS 10W60 NT.
This is worrying. I purchased a Mahle Powerpack set 100.5 last year for my engine rebuid and the coating looks exactly like yours, but I think it's thiner then the one Voith has. Some time ago Lart had 3 used 100.5 Mahle Powerpak piston for sala. Wonder what happened with the forth?
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Old 07-16-2017, 07:49 PM
  #934
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This is how it looks the ones I have
Attached Images     
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Old 07-16-2017, 08:37 PM
  #935
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Did a quick search and I find another guy who installed an powerpak piston set in his 911 back in 2012 and had the same issue with the coating.
The interesting thing it's that all this problems happened in Europe. Could be this problem caused by the fuel? The engine oil? or the coating itself. I know that some car manufacturers had had problems with nikasil coating beacause of the fuel.
http://i1037.photobucket.com/albums/...psjpdkctze.jpg
http://i1037.photobucket.com/albums/...ps2wcg7hp2.jpg
can I paste a link form pelican here ?
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Old 07-18-2017, 11:15 AM
  #936
David Ewell
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The stock Motronic DME w/ LR 3.0l M-Tune and no dyno results. Looking at getting it on dyno this September.
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Old 07-18-2017, 06:07 PM
  #937
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Originally Posted by alex_cristocea View Post
Did a quick search and I find another guy who installed an powerpak piston set in his 911 back in 2012 and had the same issue with the coating.
The interesting thing it's that all this problems happened in Europe. Could be this problem caused by the fuel? The engine oil? or the coating itself. I know that some car manufacturers had had problems with nikasil coating beacause of the fuel.
http://i1037.photobucket.com/albums/...psjpdkctze.jpg
http://i1037.photobucket.com/albums/...ps2wcg7hp2.jpg
can I paste a link form pelican here ?
Yours look exactly like mine did. Dont think it is just Europe that has issues. Check the 928 crowd on rennlist. One of the most famous builders there has had no luck with those pistons with multiple failures.

Sorry but I would not use them if I were you.
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Old 07-26-2017, 05:05 PM
  #938
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The set I had was from batch that user Ski had custom made with mahle usa 10 years ago. Afaik no failures of those were posted here and Jon Milledge built some engines with them also.

Maybe coating was different somehow.

https://rennlist.com/forums/944-turb...1-pistons.html

https://rennlist.com/forums/944-turb...m-pistons.html

Last edited by Voith; 07-26-2017 at 05:34 PM.
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Old 09-03-2017, 03:11 PM
  #939
refresh951
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Jon Gearhart's 3L 16V Turbo. JE Custom Pistons 104 mm, Crower Rods, Micheal Mount Bearing Mod, 968 16V Head (ported by Michael Mount), Stock Cams, Revline Racing large plenum/short runner intake, VR Stage 5 Turbo, M-Tune with Tuner/Logger, HVC II Coil, 3" Downpipe and Exhaust, Rogue EBC (boost by gear/rpm) with Variocam control. 500 rwhp at 15.5 psi on E85.





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Old 09-03-2017, 07:23 PM
  #940
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Wow, 500hp on only 15.5 psi is very impressive! Well done!

And it looks great too.
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Old 09-03-2017, 07:49 PM
  #941
Tom M'Guinn
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Looks like modern art -- awesome job and awesome results!
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Old 09-04-2017, 12:42 AM
  #942
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Great work Shawn. These 16v motors seem very responsive and give very good power to psi results. I have spoken to another guy who has put together a 16V race motor and saw 400whp/ft-lb @ 6psi. Regardless of dyno differences clearly you and Gustaf and others have shown that these 16v motors are a great place to start!
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Old 09-19-2017, 01:04 PM
  #943
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Originally Posted by Thom View Post
My 3L 8V crossed the 80000 km (49720 miles) mark 2 weeks ago.
Now 90000 km.
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