Some History and Oddities of My Evernham R5P7
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- Опубликовано: 12 сен 2024
- In this video I go over some of the history behind Evernham Engines and firsthand information from Doug, the guy who originally built my R5P7 at Evernham sometime in the mid 2000's. I also cover a couple things to help identify an R5 and to watch out for if you happen to stumble across one.
That's cool that it has roller cam bearings instead of the standard cam bearings in the engine
I noticed that they used caged needle bearings for the camshaft bearings. I wondered over the years why I never saw them used more often?
Expense would be my best guess. Journal bearings work 95% of the time and are cheap and almost all OE blocks use them. These bearings are only really necessary if the engine has extremely high valve spring pressures and operates at a high RPM for extended periods of time, or at least that's my understanding.
It’s always been used in that era of nascar, all manufacturers used the same setup.
Standard now on all high end engines
Some fascinating history.
When this engine ran, how much horsepower did it make.
And what will you make?
Thanks for sharing.
Take care, Ed.
On the datasheet that the pistons were ordered on I believe it was rated at 840hp. Anything over 800hp I'll be happy with, it should be more than achievable especially since we're putting some modern valve train components in it out of the current generation of Cup engines. You'll see that in the next video hopefully! Thanks for watching!
Hi, Do u know by any chance the height of the block? Meaning maximum height not deck height?
I can measure it for you when I have the block back from the machine shop, I am not sure off the top of my head unfortunately.
so this is one of the Aussie engines I can confirm still living and breathing in my vg valiant wide body race /street car(same as a dodge dart)
I have been going through the build sheet from my r5 p7 it is engine number 0818 with 2 piece crank seal ,kryptonite crank,2006 penski front and top end built by Eatmon race engines in North Carolina .
What’s wrong with your crankshaft? I have an “inside” connection with the manufacturer.
The #1 rod journal got beat up pretty bad and all the other journals have some scoring from metal going through the bearings. It could maybe be fixed but my machinist had another one laying around that should work for a lot cheaper. Tried finding a little longer stroke crank but to no avail.
@@moparmuscle8749 Most of them are 3.250” stroke. I think I have some in the shop if you’re interested. Brand new, needs balancing, nitride and finish polish to ship.
Really cool.
Interesting to see how ”skeletolized” the block is. How much lighter is it to a oe-engine?
Honestly I'm not sure, but I'll weigh it for you when I get the block back. My guess is not much if any, there's metal added in other parts of the block that I'm thinking will offset the skeleton look on the top end.