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Engine / Intake / Exhaust / Performance 
Discuss mods or enhancements to your powerplant or exhaust system.Includes aftermarket air intakes, exhaust, etc.. |
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#1
04-18-2009, 10:32 AM
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Piston help. Need help ASAP!!!
Just got done taking the heads off a car and this popped up:
 What do we do now??? I don't have the facility to do this work. It appears to have been like this for quite a while because there is carbon build up where the break is, not sure if the nitrous on a stock 6.1 would have caused this? There is no damage to the head but were putting ported heads on so I don't want to see the new heads get damaged. Should I continue putting the cam and heads in and have him drive it easy until he can get the motor pulled? Someone call me or something that knows a lot about this situation please. 864-982-2078 Jason
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 Frank's SPARROW cam, Indy Maxx heads, Custom Stock Intake, Pro-Torque 2800, Full SRT exhaust, Hemituner CMR tune, 387 rwhp, 406 ft.*lbs. 2nd member of the 5.7 N/A 11 second club E.T. 11.98 @ 113.15 mph. 4050 race weight DA +167 Darlington Dragway. 1.696 60 ft. 
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#2
04-18-2009, 10:35 AM
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Seems NHDave has the exact same issue right now. I'm not sure if I would continue with the new heads on there. Could be catastrophic if more ring land breaks off. Just my .02
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07 Sublime Daytona #0855 Zex N2O,AFE II CAI,170 t-stat,JBA exhaust,FRI S/S heads,Sparrow cam,Mopar LT's,Ported/Polished Billet Tech 85mm TB, '09 Challenger Getrag LSD. 432 rwhp N/A, 557 rwhp on spray,Install by HEMI31/BFNY Performance. 11.723 @ 117.73   NEMC Executive Board
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#3
04-18-2009, 10:36 AM
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Yikes!!!!!! Time to pull the motor...
__________________
 Lopey: 473rwhp/439tq - 6.1L N/A Modified ~ Quickest ET to date: 11.152/117.5mph, Best 60' - 1.59 Record N/A Trap Speed - 126.15mph
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#4
04-18-2009, 10:45 AM
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pull it b4 u ruin ur heads and it cost u twice as much...
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   Inertia 383 Stroker, Duel TB CAI Paramount Performance 8.8 Rear tru trac, stage II Valvebody, flex plate, 4000 TC Nitrous Outlet 150 shot and plate Hemituner tune PLCman custom panel
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#6
04-18-2009, 10:49 AM
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I wouldn't even bother to put the heads and cam in. What did the valves look like? Unfortunately it's time to pull the motor.
This isn't the first time seeing piston problems and it willnt be the last.
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•2006 DODGE CHARGER DAYTONA R/T TOP BANANA #516•FRI Street Heads•Milled .030•Ferrea Valves•Ti Retainers•FRI Sidewinder Cam•Mopar Longtubes•Dynatech Power Cats•Zoomers Catback• 6.1L Fuel Rails•6.1L Injectors•CMR Tune by DynoSteve of RDP Motorsports•Mopar CAI•SRT-Style ESP Mod "NoESP"•Billet Technology Catch Can•MotoRad 4128•Innovate Motorsports Wideband/LC-1 Kit• Dyno'd @ 296.47 RWHP/354.71 RWTQ (Before Cam) Mustang Dyno'd @ 377 RWHP/389 RWTQ (After Cam & Heads & CMR Tune by DynoSteve) 13.295 @ 105.90MPH @ National Trail Raceway, LX & Beyond Nationals, June 15, 9:05A.M.
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#7
04-18-2009, 10:50 AM
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Probably the chunk is in his catalyic converter.
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•2006 DODGE CHARGER DAYTONA R/T TOP BANANA #516•FRI Street Heads•Milled .030•Ferrea Valves•Ti Retainers•FRI Sidewinder Cam•Mopar Longtubes•Dynatech Power Cats•Zoomers Catback• 6.1L Fuel Rails•6.1L Injectors•CMR Tune by DynoSteve of RDP Motorsports•Mopar CAI•SRT-Style ESP Mod "NoESP"•Billet Technology Catch Can•MotoRad 4128•Innovate Motorsports Wideband/LC-1 Kit• Dyno'd @ 296.47 RWHP/354.71 RWTQ (Before Cam) Mustang Dyno'd @ 377 RWHP/389 RWTQ (After Cam & Heads & CMR Tune by DynoSteve) 13.295 @ 105.90MPH @ National Trail Raceway, LX & Beyond Nationals, June 15, 9:05A.M.
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#8
04-18-2009, 10:57 AM
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It's not even my car, it is a guy from the forums though. It a SRT8 that was spraying 150 shot. I don't have the means to pull the entire motor here and the guy lives over an hour from me.
Do you have to pull the heads to pull the engine out, like if he drives it home easily then gets a shop to do the piston swap?
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Frank's SPARROW cam, Indy Maxx heads, Custom Stock Intake, Pro-Torque 2800, Full SRT exhaust, Hemituner CMR tune, 387 rwhp, 406 ft.*lbs. 2nd member of the 5.7 N/A 11 second club E.T. 11.98 @ 113.15 mph. 4050 race weight DA +167 Darlington Dragway. 1.696 60 ft.
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#9
04-18-2009, 11:05 AM
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Your taking a big risk... Just stop. Let him tow the car home. At the point that your at I would get it pulled and get the block freshened up... it makes no sense to put heads back on that... If thats what your gonna HAVE to do just stick the stockers back on.
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Eddie... 2006 Dodge Magnum SRT8... Yeah Baby!!! N.Y.H.H.   Air Hammer CAI, American Racing Headers, Bassani Cat Back, Paramount Perf. 3400 Stall T/C, SLP pulley, BT catchcan, Getrag LSD w/3.06 gears, Blue top AMG solenoids, AMG shifter paddles, Diablo Trinity, 12k HID's...
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#10
04-18-2009, 11:06 AM
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Does he have AAA? I would have it towed to the shop he's having the engine pulled and freshened up/swapped at without driving it anymore. But, I'm not an expert by any means and Michgan Hemi did my install so I learned as we went but personally I wouldn't risk those new heads or trashing the old ones if they aren't already damaged. The towing bill an hour away would be much less...
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Lopey: 473rwhp/439tq - 6.1L N/A Modified ~ Quickest ET to date: 11.152/117.5mph, Best 60' - 1.59 Record N/A Trap Speed - 126.15mph
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#11
04-18-2009, 11:10 AM
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damn!!
__________________
  FRI econo heads and sidewinder cam. and all of kind Billet Tech stuff,Tommyz grill, plcman fan mod best E/T so far 12.420 , 110.93 , 1.79 on a stock verter! fastest moddified 5.7 at shindig 08 http://videos.streetfire.net/video/R...-HD_204993.htm < vids from the track 08 06 300c fri'd baby not a cry baby....  07 Grand Cherokee limited HEMI ...coming soon 
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#12
04-18-2009, 11:19 AM
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It's easier to pull the motor with the heads off but its not neccassary. He's taking a risk of catastrophic failure driving it anymore and could destroy many more things. As far as rebuilding it, he has a few options, theres the stroker route, theres the forged stock displacement route, and if i recall the cheapest option so far i think they have just a forged piston route and keep everything else rods and crank stock. I'm pretty sure FRI has info on that.
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392 Stroker, custom rdp nitrous cam, rdp tcm's, rdp TC, Builder Bill tranny, LXAS LVLI Tcase, and the juice. 
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#13
04-18-2009, 11:49 AM
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I would freak if I saw that. I still have extended warranty on my car does he. wonder if they would cover that. I would put it back together without the new cam and heads and figure out the warranty or what to do. I wouldn't drive much on that motor though. I will say I think the juice did it...
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#14
04-18-2009, 01:51 PM
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I wouldn't risk damaging the head or wasting labor putting them back on when they are going to be pulled again. Have him toe his car home, that is your best bet.
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SRT MAX 112 LSA | Inertia Bg Valve heads | SLP Longtubes | Gutted Cats | SLP LM1 | AFE Stage II | 90mm TB | 25% Underdrive pulley | Mopar TCM | Pro Torque 2800 | Getrag LSD | Inertia CMR tuned | Pedder Track II | 402 rwhp 406 rwtq12.3 @ 112
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#15
04-18-2009, 03:02 PM
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If he replaces just that piston with a stock one it would be a good idea to file the end gap on all the top rings. The top of the piston breaks because the top ring gets hot and expands until the weakest link fails, top of piston.
__________________
 Rockinsrt8's CocoBolo Pistol Grip Shifter, FRI Sidewinder cam, Dynatec Headers , Borla125 Catback, Air Hammer, Predator Tuner, Complete Pedders bushings ,Police Pack Oil Cooler, SRT 8 Struts and Nivo's ,Hotchkis sway bars,100 hp shot Nitrous Express, M/T DR's , Member of the over 170,000 mile club ---- winterportdragway.com 1/8th mile 7.90/90 mph -- Never Trust a Fart !
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