Broke a valve spring underboost..I think - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

lexlueger · 10-01-2011, 09:46 PM

Quote:

Originally Posted by toesuf94

Way to go Mast...now if they could just train BMW on handling those pesky V10's, eh?

Lmao! Truer words have never been spoken.

SRT10KLLR · 10-01-2011, 11:55 PM

My brother has been running the Mast Stage II VVT cam since I had it installed over a year ago with Patriot Gold Dual springs. It put down 463rwhp and 468tq.

SC2150 · 10-02-2011, 01:38 PM

Were the springs heat cycled properly after install? Failure to do so can result in weak points that can fail. Agree w/Jason as well on the duals. Rarely go with singles any mose as a dual will generally give you the safety of not bending a valve in the event of a failure.

Hard to place blame....but only the mildest of cames do we use a single beehive and then only the Comp 918's.

Again, proper heat cycling procedure after the intial install is critical to long spring life as well as proper push-rod legnth & valvetrain geometry. Even though it is common paractice, we NEVER use a reccomended push-rod legnth. We measure the needed legnth for proper preload and then we know exactley the legnth needed. (easier as we stock a ton of legnths in-house).

Good Luck!

10-01-2011, 11:55 PM	#44
SRT10KLLR Drives: 2010 Camaro 2SS/RS Join Date: Sep 2009 Location: Down South Posts: 1,497	My brother has been running the Mast Stage II VVT cam since I had it installed over a year ago with Patriot Gold Dual springs. It put down 463rwhp and 468tq. __________________ 2005 Dodge Ram 2500 RCSB Thunder Road Hemi Sport w/STS Turbo 2004 Dodge Ram SRT-10 - Silver - Stock 2003 Chevy 1500 RCSB Stepside 400SS - 408 in now awaiting Turbo

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10-02-2011, 01:38 PM	#45
SC2150 Account Suspended Drives: 2012 Camaro RS, RX supercharged Join Date: Dec 2009 Location: Bradenton, FL Posts: 6,063	Were the springs heat cycled properly after install? Failure to do so can result in weak points that can fail. Agree w/Jason as well on the duals. Rarely go with singles any mose as a dual will generally give you the safety of not bending a valve in the event of a failure. Hard to place blame....but only the mildest of cames do we use a single beehive and then only the Comp 918's. Again, proper heat cycling procedure after the intial install is critical to long spring life as well as proper push-rod legnth & valvetrain geometry. Even though it is common paractice, we NEVER use a reccomended push-rod legnth. We measure the needed legnth for proper preload and then we know exactley the legnth needed. (easier as we stock a ton of legnths in-house). Good Luck!