Duramax Diesels Forum Truck of the Week
  #1  
Old 11-14-2012, 03:54 PM
Fingers's Avatar
Fingers Fingers is offline
Village Idiot
 
Join Date: Apr 2008
Location: White Oak, PA
Posts: 1,570
Default Oval Chamber Pistons

I have several sets of 0.020" over piston blanks on the shelf ready for machining. Drop me a PM for a price. You will be pleased.
__________________
But.....What do I know.

'04.5 EC/LB 4x4.
Howard Rods w/ oiler hole.
Oval Chambers and valve reliefs cut in Mahle Cast Pistons. 17.5:1
SoCal Stage 2 heads, 3388 Cam, Billet Flywheel, and harmonic balancer.
Danville 68mm VVT Turbo
100 over injectors.
PPE Dual CP3s
ProFab Castflow headers and uppipes.
100 PSIA MAP Sensor
Kennedy dual lift pump.

Dynoed 690 HP / 1200 TQ
Reply With Quote
  #2  
Old 11-16-2012, 10:52 AM
Fingers's Avatar
Fingers Fingers is offline
Village Idiot
 
Join Date: Apr 2008
Location: White Oak, PA
Posts: 1,570
Default

FAQ:

Q: What compression ratio are these pistons?
A: The pistons are cut to order. Compression is selectable from 15.5:1 through 18:1.

Q: Are valve reliefs more money?
A: Yes.

Q: What are the pistons based off of?
A: I am using Mahle Race cast pistons for blanks and cut the custom oval bowl into these.

Q: Are these available in forged?
A: Mahle Forged are also available.

Q: What about wrist pins and rings?
A: They are included with the pistons.

Q: What is the lead time?
A: Piston blanks are kept in stock and can usually be turned around within a week. I outrun my supply from Mahle every once in a while. When this happens, there can be additional delays.

Q: How much HP will these handle?
A: To date, everything people have thrown at them. Almost everyone so far is running 600+ HP with Several 1000 HP engines. Time will tell, but everything is good so far.

Q: Why do engines running these pistons sound different?
A: I don't know for sure. I think it is because the one exhaust valve is slightly less covered by the bowl, but I really don't know.
__________________
But.....What do I know.

'04.5 EC/LB 4x4.
Howard Rods w/ oiler hole.
Oval Chambers and valve reliefs cut in Mahle Cast Pistons. 17.5:1
SoCal Stage 2 heads, 3388 Cam, Billet Flywheel, and harmonic balancer.
Danville 68mm VVT Turbo
100 over injectors.
PPE Dual CP3s
ProFab Castflow headers and uppipes.
100 PSIA MAP Sensor
Kennedy dual lift pump.

Dynoed 690 HP / 1200 TQ

Last edited by Fingers; 09-21-2014 at 09:03 PM. Reason: Updated
Reply With Quote
  #3  
Old 11-16-2012, 12:39 PM
SgtKilroy's Avatar
SgtKilroy SgtKilroy is offline
'Merica!
 
Join Date: Sep 2009
Location: SoCal
Posts: 860

Default

I've never actually wanted my truck to be broken, but I could sure use an excuse to get some of these.
__________________
James
*Sold* 05 LLY CC/SB 4x4 EFI Live, 4094VVT, ML Built Trans, Precision Converter, ADII 165, ATP DSP5 Tuning, Dry FICM, RDL Y bridge, Rear mount fuel cell, heat sink fuel cooler and some little stuff.

2011 Camaro 1SS/RS 6.2L 6 Speed Manual

SoCal Diesel Trucks
Reply With Quote
  #4  
Old 11-19-2012, 07:13 AM
MarkBroviak's Avatar
MarkBroviak MarkBroviak is offline
DMax Junkie

 
Join Date: May 2008
Location: Danville Indiana
Posts: 1,553

Default Here is a picture of my build currently under way...

Here is the motor I am putting together for White Lightning(my daily driver) and it features the Oval pistons 15.5:1 and some other cool features...
Attached Images
File Type: jpg pistons.jpg (194.8 KB, 814 views)
File Type: jpg photo2.jpg (196.9 KB, 741 views)
File Type: jpg photo1.jpg (191.0 KB, 681 views)
File Type: jpg crank.jpg (195.8 KB, 644 views)
File Type: jpg vt.jpg (197.9 KB, 706 views)
File Type: jpg head.jpg (177.2 KB, 609 views)
__________________
06 LBZ "White Lightning" 2wd rclb DP built motor Carillo, 15.25:1 "Finger" Oval Pistons w/reliefs, Socal Titanium upgraded springs on Stock heads w/Socal Billet injector holddowns,ARP, head-main-rocker studs,Soca Billet mains& Dampner, Chromoly pushrds, DP B72mmstg2R1VGT/StainlessDiesel S472/87 1.0SS triples, DHD Cast SuperHighflow intake, Exergy 14mmCP3 & 250%inj,Fass, PPE Race Valve PPE Manifolds, Banks Technicooler, AFE Boost tube, SC GMax6 Goerend "G" Grizzly Locker 3.42 gears, 1198+++hp 2k+ftlbs
Current fastest pass 1.520 60ft 6.705@108.95mph 1/8th 10.242@140.11mph
159.8mph in standing 1/2mile
Made it on fastest DMax list with Single VGT and single cp3 fuel only! 1.589 60ft 6.9291@103mph 1/8th 10.96@127.76mph
Stock motor best 11.277@119mph B68mmStg2R 250%inj 12mmcp3

Wife's tow rig-08 LMM SierraHD SLT2 "Stormy" CCSB murdered out B68mm Stg2R
06 GP GXP 5.3L StealthGray Metallic
http://www.danvilleperformance.com
http://www.youtube.com/markbroviakdp
http://www.youtube.com/channel/UCV6K...?feature=watch
Mark@DanvillePerformance.com
Reply With Quote
  #5  
Old 11-19-2012, 07:58 AM
slipclutchms's Avatar
slipclutchms slipclutchms is offline
Hotrodder
 
Join Date: May 2010
Posts: 419
Default

What do you have up your sleeve for an intake??? I am curious ! Looks like it will be very sweet whatever it may be!
__________________
2003 GMC CCSB 2wd ZF6 LLY
Reply With Quote
  #6  
Old 11-19-2012, 09:26 AM
Fingers's Avatar
Fingers Fingers is offline
Village Idiot
 
Join Date: Apr 2008
Location: White Oak, PA
Posts: 1,570
Default

Very nice Mark! Thanks for sharing.
__________________
But.....What do I know.

'04.5 EC/LB 4x4.
Howard Rods w/ oiler hole.
Oval Chambers and valve reliefs cut in Mahle Cast Pistons. 17.5:1
SoCal Stage 2 heads, 3388 Cam, Billet Flywheel, and harmonic balancer.
Danville 68mm VVT Turbo
100 over injectors.
PPE Dual CP3s
ProFab Castflow headers and uppipes.
100 PSIA MAP Sensor
Kennedy dual lift pump.

Dynoed 690 HP / 1200 TQ
Reply With Quote
  #7  
Old 11-19-2012, 09:58 AM
Vsouth Vsouth is offline
Hotrodder
 
Join Date: Oct 2008
Posts: 135

Default

What are the beneifts of these pistons?
__________________
NHRDA 2011 Super Diesel World Champion
NHRDA 2012 Sportsman World Champion

A big thanks to: Edge Products, Adrenaline Performance, ATPTrucks, Dmax Store, Yukon, Flexalite, Fusion Bumpers, Danville Performance

2006 GMC 2500hd CCSB 4X4: Built to the hilt, and run till she broke!!
Reply With Quote
  #8  
Old 11-19-2012, 10:30 AM
coldLBZ's Avatar
coldLBZ coldLBZ is offline
Hotrodder
 
Join Date: Apr 2007
Location: Alberta, Canada
Posts: 2,351

Default

Quote:
Originally Posted by Vsouth View Post
What are the beneifts of these pistons?
Here is the thread discussing these pistons:
http://www.duramaxdiesels.com/forum/...ad.php?t=28700
__________________
Dan
2006 Chevrolet 2500HD 4x4 CC/SB LBZ Allison
PPE Hot+2 ET, S&B Cool Air Intake, MBRP 4", PCV Reroute, BD Manifold, SD Manifold, SCIV/PPE-Precision Converter/Pump Rub Fix/T-Case Brace/SoCal Diesel Flexplate By Ted @ MPL

2014 GMC 1500 4X4 RC/SB 5.3L

2008 GMC 1500 4x4 CC/SB 6.0L 4L70E - GONE
Reply With Quote
  #9  
Old 11-19-2012, 10:47 AM
MarkBroviak's Avatar
MarkBroviak MarkBroviak is offline
DMax Junkie

 
Join Date: May 2008
Location: Danville Indiana
Posts: 1,553

Default

Quote:
Originally Posted by Vsouth View Post
What are the beneifts of these pistons?
The best way I can explain them is that they change the way the power is made and transferred. The motor sounds different out the pipe and responds completely different compared to the current SoCal/Mahle offerings. I am not a big fan of forged pistons in street trucks so these(in my eyes)are a great alternative for making big horsepower and holding up to some serious abuse. We are running mid 9's with these pistons in Brett's C10 on the small tune and has made 10 passes at that power and has a few street miles on it as well. I am really looking forward to running these in my truck! Also doing a twin turbo built right now in the shop with these pistons so we will see how that one drives.
__________________
06 LBZ "White Lightning" 2wd rclb DP built motor Carillo, 15.25:1 "Finger" Oval Pistons w/reliefs, Socal Titanium upgraded springs on Stock heads w/Socal Billet injector holddowns,ARP, head-main-rocker studs,Soca Billet mains& Dampner, Chromoly pushrds, DP B72mmstg2R1VGT/StainlessDiesel S472/87 1.0SS triples, DHD Cast SuperHighflow intake, Exergy 14mmCP3 & 250%inj,Fass, PPE Race Valve PPE Manifolds, Banks Technicooler, AFE Boost tube, SC GMax6 Goerend "G" Grizzly Locker 3.42 gears, 1198+++hp 2k+ftlbs
Current fastest pass 1.520 60ft 6.705@108.95mph 1/8th 10.242@140.11mph
159.8mph in standing 1/2mile
Made it on fastest DMax list with Single VGT and single cp3 fuel only! 1.589 60ft 6.9291@103mph 1/8th 10.96@127.76mph
Stock motor best 11.277@119mph B68mmStg2R 250%inj 12mmcp3

Wife's tow rig-08 LMM SierraHD SLT2 "Stormy" CCSB murdered out B68mm Stg2R
06 GP GXP 5.3L StealthGray Metallic
http://www.danvilleperformance.com
http://www.youtube.com/markbroviakdp
http://www.youtube.com/channel/UCV6K...?feature=watch
Mark@DanvillePerformance.com
Reply With Quote
  #10  
Old 11-19-2012, 11:10 AM
Fingers's Avatar
Fingers Fingers is offline
Village Idiot
 
Join Date: Apr 2008
Location: White Oak, PA
Posts: 1,570
Default

Quote:
Originally Posted by Vsouth View Post
What are the beneifts of these pistons?
After looking at many failures in other pistons and running a model of the pistons through a suite of computer analysis, I have adjusted the shape of the bowl to provide more material over the pin area where other pistons have failed and the computer shows the max stress is.
__________________
But.....What do I know.

'04.5 EC/LB 4x4.
Howard Rods w/ oiler hole.
Oval Chambers and valve reliefs cut in Mahle Cast Pistons. 17.5:1
SoCal Stage 2 heads, 3388 Cam, Billet Flywheel, and harmonic balancer.
Danville 68mm VVT Turbo
100 over injectors.
PPE Dual CP3s
ProFab Castflow headers and uppipes.
100 PSIA MAP Sensor
Kennedy dual lift pump.

Dynoed 690 HP / 1200 TQ
Reply With Quote
  #11  
Old 11-19-2012, 06:17 PM
ChevyDieselLLY's Avatar
ChevyDieselLLY ChevyDieselLLY is offline
Whats A Budget???
 
Join Date: Apr 2008
Location: MI, NC, now Hawaii
Posts: 2,684
Default

If I ever open my engine back up I think I may buy these
__________________
Justin
04.5 Chevy LLY EC SB LT Mostly Stock..... SOLD

Now I drive a minivan

U.S.M.C. 2003 - Present
Reply With Quote
  #12  
Old 11-19-2012, 07:21 PM
WolfLLY's Avatar
WolfLLY WolfLLY is offline
Making Chips
 
Join Date: Nov 2006
Location: AL
Posts: 4,184

Default

What does the engine sound like? Any video clips?
__________________
LMM CCSB LTZ Z71. SoCal motor, s485/68r, 1078 Limitless converter, S&S 200s.


LB7 ECSB 4X4

Thanks to Evan@Limitless, Mark@Danville Performance, Josh Harris@Top Notch, and Corbin(crussel)
Reply With Quote
  #13  
Old 11-19-2012, 07:33 PM
quinton's Avatar
quinton quinton is offline
Hotrodder
 
Join Date: Nov 2011
Location: Granbury Tx.
Posts: 1,822

Default

Would also like to hear this.
__________________
EFIlive dsp5 by me, Built trans by me, 68 danville, stock fuel, lifted. died 6/20/2013 Cracked piston. Best time 12.75 on fuel

Alive 11/15/13: lowered, Built motor, s475, plenty of fuel, plenty of spray. Tune 3 fuel only 11.84 @114, Tune 5 little bit of spray 11.45 @ 121. Both times with melted turbine wheel, loose turbo from pedestal with blown out flange gasket. .
Reply With Quote
  #14  
Old 11-20-2012, 04:59 AM
dmax711's Avatar
dmax711 dmax711 is offline
Hotrodder
 
Join Date: Mar 2011
Location: concord, north carolina
Posts: 1,056

Default

mine wont be running till late winter/spring but I kno Evan (lb7dirtymax01 ) has his up and running and it sounds bad ass...Maybe we can get him to post a vid!??
__________________
Sold--2005 lly , built motor, triple turbos, dual pumps, 100 overs.

2012 lml Denali , deleted, ppei tunes, fass 150
Reply With Quote
  #15  
Old 11-20-2012, 06:45 AM
MarkBroviak's Avatar
MarkBroviak MarkBroviak is offline
DMax Junkie

 
Join Date: May 2008
Location: Danville Indiana
Posts: 1,553

Default

http://www.youtube.com/watch?v=EQwKs...Ad7YmbxZRIyaxA

http://www.youtube.com/watch?v=Lk-2m...hannel&list=UL

http://www.youtube.com/watch?v=_29aX...hannel&list=UL

http://www.youtube.com/watch?v=Mjs0K...hannel&list=UL

Here are a couple of videos of these pistons getting a workout, wish the sound qality was alittle better but this is the best I can do right now, I will get high quality of mine when it is up and running.
__________________
06 LBZ "White Lightning" 2wd rclb DP built motor Carillo, 15.25:1 "Finger" Oval Pistons w/reliefs, Socal Titanium upgraded springs on Stock heads w/Socal Billet injector holddowns,ARP, head-main-rocker studs,Soca Billet mains& Dampner, Chromoly pushrds, DP B72mmstg2R1VGT/StainlessDiesel S472/87 1.0SS triples, DHD Cast SuperHighflow intake, Exergy 14mmCP3 & 250%inj,Fass, PPE Race Valve PPE Manifolds, Banks Technicooler, AFE Boost tube, SC GMax6 Goerend "G" Grizzly Locker 3.42 gears, 1198+++hp 2k+ftlbs
Current fastest pass 1.520 60ft 6.705@108.95mph 1/8th 10.242@140.11mph
159.8mph in standing 1/2mile
Made it on fastest DMax list with Single VGT and single cp3 fuel only! 1.589 60ft 6.9291@103mph 1/8th 10.96@127.76mph
Stock motor best 11.277@119mph B68mmStg2R 250%inj 12mmcp3

Wife's tow rig-08 LMM SierraHD SLT2 "Stormy" CCSB murdered out B68mm Stg2R
06 GP GXP 5.3L StealthGray Metallic
http://www.danvilleperformance.com
http://www.youtube.com/markbroviakdp
http://www.youtube.com/channel/UCV6K...?feature=watch
Mark@DanvillePerformance.com
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -7. The time now is 01:09 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
vB.Sponsors