03-04-2011, 09:25 AM | #1 |
Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010
Location: Charlotte NC /Brooklyn NY
Posts: 2,305
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Broke a valve spring underboost..I think
:( yeah soooo... My car lasted 2 whole days after getting my supercharger(2300) installed. Went out on Wednesday to run a few errands and decided ehhh WTH I'll take the camaro! Never made it... I was cruising along about 38 mph ish and punched it. It ran fine the day before but this time it sounded "funny". I could see that the car was making boost*around 6-7 psi* and it was injecting methanol according to boost as it should.
No loud pops or bangs, it just felt like a misfire of some sorts. Horrible idle and stuttering. Soo I popped the hood and the actuator/wastgage? on the maggie is moving back and forth with the rpms WTF!?!? Long story short got it towed and yeah broken valve spring. I was running Mast's VVT stage 1 cam and nitrited beehive springs. The car had been cammed for almost a year only one issue..It threw a cam over advance code on long trips but always cleared itself. What could have caused this...any ideas or next course of action? Should I call MAST
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MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON. |
03-04-2011, 10:31 AM | #2 |
Psssssssssshhhhhhhhhhhhh!
Drives: under contruction Join Date: Nov 2009
Location: Marysville, Ohio
Posts: 12,996
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I'm not clear on this, are the stock valve springs still in the car?
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03-04-2011, 10:39 AM | #3 |
need....more....hp
Drives: The Neighbor Hater Join Date: Dec 2010
Location: San Mateo, CA
Posts: 4,091
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so you upgraded just the cam by itself? When i upgraded my cam i upgraded the valves, rockers, pushrods, and timing chain. I didnt mind putting a little extra money into the car because I wanted to be safe.
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Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims |
03-04-2011, 10:41 AM | #4 |
Drives: Camaro Join Date: Apr 2009
Location: Texas
Posts: 1,669
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Hope the valve isn't bent! That's exactly the reason we like to see customers buy our double spring kit instead of single springs. If a single spring fails there's nothing to keep the valve up :( :(
The good news is if you have to swap valves in theheads it just gives you a reason to do cnc ported heads!! |
03-04-2011, 10:43 AM | #5 | |
Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009
Location: Ft. Mitchell, Alabama
Posts: 7,199
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Quote:
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Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)
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03-04-2011, 11:12 AM | #6 |
need....more....hp
Drives: The Neighbor Hater Join Date: Dec 2010
Location: San Mateo, CA
Posts: 4,091
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I was also told that I run the risk of the springs collapsing, especially with how much power you are putting out there will be a lot of stress on them.
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Mast Motorsports Built LS3 Stroker 418, IPS GT35R Twin Turbos, Exedy GTO4XD Twin Disc Clutch, Aeromotive A1000 Eliminator Stealth Fuel Pump, AEM Meth Injection, DSS 1400hp Axels, BC Coilovers, Pfadt & BMR Suspension, Hawk HPS Pads, Drilled/Slotted Rotors, Hurst Shifter, Custom Roll Cage by Blu808, T3 Ports, 22" Custom Concave Mesh Rims |
03-04-2011, 11:20 AM | #7 | |
Drives: 2010 SS M6 2016 2SS A8 Join Date: Oct 2009
Location: Utah
Posts: 553
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Sounds like cheap valve springs. Hope it didnt cause too much damage. Like Jason said I would go with double valve springs from a good company.
Quote:
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TVS 2300 721RWHP 686RWTQ
Built by Me Suspension done by JDP Tune done by JRE |
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03-04-2011, 12:46 PM | #8 |
100% Chevy & Harley Man
Drives: 2010 2SS: Blown LSX 376-B15 Join Date: Feb 2009
Location: Eldersburg,MD
Posts: 2,211
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I'd say it's time for some real head work.
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LSX 376-B15, TVS2300 SC, Harland Sharp Rockers w/ Trunion Bearings, ATI Balancer/keyed, AR LT Headers/Borla Catback Exhaust, DSS 1400 HP Axles, DSS aluminum driveshaft, 3.70, Hotchkis Springs/Sway bars, Forgeline SO3P Aluminum Wheels (20x9.5 F/20x11 R)w/ Hidden Titanium Hardware, Nitto NT05 Tires (27540ZR20 F/31535ZR20 R), Billet LPE brake/gas pedals, Escort 9500ci Radar Detector Laser Jammer, Roto Fab CAI with Ice Silver box, Carbon fiber tube/MAF Housing Assy, LPE Aluminum coil covers, SS9 Sleeper Fiber Glass Hood (ACS), Carbotech 1521 ceramic brake pads, Elite catch can.
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03-04-2011, 12:54 PM | #9 | |
Drives: 2010 Camaro SS / 2006 CC Duramax Join Date: Aug 2009
Location: Rowlett
Posts: 377
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Quote:
Do you guys have spring failures with the PRC duals? |
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03-04-2011, 02:44 PM | #10 |
Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010
Location: Charlotte NC /Brooklyn NY
Posts: 2,305
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Update: No it was not the stock springs.
I bought bought cam and springs from Mast. The valve is also bent!!
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MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON. |
03-04-2011, 02:52 PM | #11 |
Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010
Location: Charlotte NC /Brooklyn NY
Posts: 2,305
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__________________
MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON. |
03-04-2011, 03:13 PM | #12 |
Drives: 10 1LT SIM; 91 B4C sleeper Z Join Date: Aug 2009
Location: Ft. Mitchell, Alabama
Posts: 7,199
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So does Mast back those springs for any amount of time? You gonna pull all of them and replace? I'm assuming the head is coming off to check for more (if any) damage. That sucks.
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Pedders Pace Car Package, Injen CAI, Flowmaster AT, AAC Lighting, ZL1 fascia/skirts, RKSport Ram Air hood, vented fenders, painted stripes (Gary's Customz), Honor and Valor badged (Thank you, John)
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03-04-2011, 05:46 PM | #13 |
50 Shades of Prey
Drives: TT/SS Join Date: Oct 2010
Location: Between 10 and 20 PSI
Posts: 777
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generally on cars you don't drive very often that have extreme valve springs with a big cam(granted i have no idea how big your cam is) you change the springs once a year. From what I hear with the car sitting for long periods with some of the upgraded valve springs fully compressed they tend to become fragile. On race engines the rockers are often released after racing is done to take pressure off the valve springs while the car isn't being used. All of the previous things stated are gathered from info over time, some maybe true, some maybe false, just something to think about. On my built gto i ran very similar springs and put 28000 miles on them with no problems but it was all in 1 year and then changed them after a year because of the things i previously stated
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Futral Motorsports built and tuned
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03-04-2011, 05:54 PM | #14 | ||
Drives: V10 BMW M5, Supercharged 2SS/RS Join Date: Jun 2010
Location: Charlotte NC /Brooklyn NY
Posts: 2,305
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Quote:
Quote:
__________________
MAST 416 STROKER: STAGE 3 TVS 2300 CUSTOM CAM TPIS 102 TB IW 8 RIB PULLEY W/ OD COG REARS NX EXPRESS/NANO KIT KDI HEAT EXCHANGER/ROTOFAB RESERVOIR CIRCLE D 2800 TC/FLEX PLATE/ADM TRANS COOLER DSS DRIVESHAFT/1400 HP AXLES EATON TRUETRAC -LPE 3.27 GEARS DYNATECH HEADERS/MAGNAFLOW EXHAUST SQUASH RETURN STYLE FS ID 850's E85/ FLEXFUEL BMR/EIBACH SUSPENSION KILL MODE, ON. |
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