Engine RPM's - Team Camaro Tech
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post #1 of 2 (permalink) Old Aug 17th, 00, 01:15 PM Thread Starter
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For those of you taken off track from the thread that was closed, I wanted to add this. A few years ago (about 5 years) I saw a valve train that does increase RPM I am not saying it is gospel, I just saw it and was impressed. I don't know what it is called, I first saw it used on a circle track car at the El cajon speedway in El Cajon Ca. They used a system that used a very light wight spring and a push rod with a spring on it that went up to the head under the rocker arm. The way it works is the spring on the push rod keeps the cam and lifters in place and also allow the valve to close with a light wight spring the valve spring tenshion is very light to allow the valve to open fast. This is just the basics of this system and some of what I said may be wrong, but the intent was to bring it up. Some one figured there was more than one way to skin a cat and they made a set up for it. Theplace that was making them is some place near Riverside California and I can't remember the name of the system. It also showed up in a magazine but I can't remeber which one.

I also want to let everyone know I am not bringing this up to start something all over again. That last thread broke a spring bent a valve and blew the engine. Please allow those of us that want to discuss this to do so, that's what we are here for.

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post #2 of 2 (permalink) Old Aug 18th, 00, 04:55 AM
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Gene
 
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Joe,

You are describing what most people call a rev kit. AFR makes one for stock hydraulic roller cam applications. They call theirs the "Hydra-Rev" kit. You can see a picture of it on their website.

Supposedly, it allows an additional 500 RPM on the top end and the power isn't supposed to drop off as quickly either. I have heard from at least one engine builder around here that these kits don't provide much benefit other than the decrease in E.T. you get because you have a lighter wallet.
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