Outcome Predictions needed (HR Cams)
06-23-2011, 09:27 AM
#121
Why do I have the worst of luck!!!! The techs started up the car this morning and it started making a noise!!!! I asked if it was valvetrain noise but he said he wasn't sure so it's being thoroughly inspected. Crossing my fingers I hope there is nothing wrong.
06-30-2011, 07:17 AM
#125
Don't like the red stuff (looks like some odd lube) but if you look closely, you'll see one valve is opening while the other is not. This leads me to believe the valves aren't shimmed correctly (too tight) and possibly others are too loose. The loose ones just make noise while the tight ones can burn up a valve and hurt an engine.
06-30-2011, 11:46 AM
#126
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Don't like the red stuff (looks like some odd lube) but if you look closely, you'll see one valve is opening while the other is not. This leads me to believe the valves aren't shimmed correctly (too tight) and possibly others are too loose. The loose ones just make noise while the tight ones can burn up a valve and hurt an engine.
The only thing I find curious is this noise was discovered after a day of tuning. I would initially think it would be noticed right away. I'm not real familar with the top end on the VQ but could this be a sticky HLA?
06-30-2011, 12:05 PM
#127
Nah... it should have made the noises immediately. I can only imagine they may have thought it was a basic valvetrain noise or maybe thought it would go away after the oil worked it way through the system. Another possibility could deal with the variable vavle timing getting stuck. Can't say for sure.
07-08-2011, 08:16 AM
#133
Well guys the bad news... I mean, the horrible news is that they found Metal shavings in the oil filter. What they said that failed was the dual valve spring so that valve effed up my head so i don't wanna risk it any more with that block and those heads, so I went ahead and bought a brand new Motor from Courtesy Parts ($7200) so right off the bat this project is a fail my 10-15k spend on this project. But I'm still going to install the camshafts by themselves with no aftermarket Valve-train, Blue350Zed has similar cams with stock valve-train and had an awesome N/A Z with good Power.
07-08-2011, 12:38 PM
#137
Sorry to hear man, worst part about it... the HR's valvetrain was probably strong enough stock. Could have been a defective spring, but its also possible it was installed incorrectly or over-rev'ed. Any-how, I think your new plan is fine and should yield great results (just make sure the stock springs are compatible with the lift).
07-08-2011, 04:26 PM
#138
Sorry to hear man, worst part about it... the HR's valvetrain was probably strong enough stock. Could have been a defective spring, but its also possible it was installed incorrectly or over-rev'ed. Any-how, I think your new plan is fine and should yield great results (just make sure the stock springs are compatible with the lift).
07-09-2011, 04:30 AM
#139
Tough to say, Jim Wolf cams suggests changing them out for their 11.9 cam (stock is 10.54). Where-as, Tomei suggests the DE and HR is expected to be ok upto about 11. Tough one... I'd look for peolpe like Blue350Zed and see what they have been able to get away with as well as talking to some of the manufacters' tech depts.