Overrev ?

420nitro · 01-13-2004, 08:58 AM

Generally when you over rev an engine, you have a failure of some sort right away. I honestly believe you have a defect in your valve train and he is trying to get you to pay for it.
When you over rev an engine and the valve train starts to float, the first thing that usually happens is the valve hits the piston. I have over rev my engine by mistake (with the rpm pill out) and never broke a keeper or retainer. (the motor went 7,000rpms) Now granted I had decent parts but never the less your valve train needs to match the cam. I would fight him on that, at least have him pay for half, and get better parts. As goes for the E-cam it suppose to make peak power at 6,000 rpms unless you have had the cam installed 2-4 retarded for a higher shift point. But don't forget that you are still running a hyd. roller cam and the stock type lifters will float at approx. 6500 rpms. To exceed this point will require trick and expensive titinum valve train parts.
Good luck

01-13-2004, 08:58 AM	#3
420nitro Registered Member Join Date: Nov 2003 Location: Rockford Posts: 596	Generally when you over rev an engine, you have a failure of some sort right away. I honestly believe you have a defect in your valve train and he is trying to get you to pay for it. When you over rev an engine and the valve train starts to float, the first thing that usually happens is the valve hits the piston. I have over rev my engine by mistake (with the rpm pill out) and never broke a keeper or retainer. (the motor went 7,000rpms) Now granted I had decent parts but never the less your valve train needs to match the cam. I would fight him on that, at least have him pay for half, and get better parts. As goes for the E-cam it suppose to make peak power at 6,000 rpms unless you have had the cam installed 2-4 retarded for a higher shift point. But don't forget that you are still running a hyd. roller cam and the stock type lifters will float at approx. 6500 rpms. To exceed this point will require trick and expensive titinum valve train parts. Good luck