Home
What's new
Latest activity
Authors
Store
Latest reviews
Search products
Forums
New posts
Search forums
What's new
New posts
New listings
New products
New profile posts
Latest activity
Members
Current visitors
New profile posts
Search profile posts
Log in
Register
Cart
Cart
Loading…
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Search titles only
By:
Menu
Log in
Register
Navigation
Install the app
Install
More options
Change style
Contact us
Close Menu
Forums
Cobra Forums
New Edge Cobras
Highest compression for boost?
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="SlowSVT" data-source="post: 13073997" data-attributes="member: 20202"><p>Interesting points</p><p></p><p>I don't think you can attribute oil pump failures to the gear rotors themselves. Billet steel is pretty tough material and less brittle then the PM factory gears. They just won't break on their own. I think harmonics, movement of the crank snout or ingesting debris can be attributed to the vast majority if oil pump failures. The gears straddling the snout carries some risk. Haven't decided whether or not to cut the second keyway, once I turn my attention to building the engine those details will be decided. </p><p></p><p>I bet those are the same valve springs I have. When I comes to springs it hard to tell who made them? what they are made of? what heat treatment did they get? They all look the same and you just never know unless you buy directly from the guys who made them. I discussed this topic over with many people with many "opinions". Pac is the largest manufacturer of automotive valve springs and I have a friend who has an inside contact in the engineering dept who had some interesting information on the industry as it relates to our cars (remember the outbreak of Comp spring failure). Their retainers were at 7.5 grams vs. the OEM 9.2 for grins</p><p></p><p>I only needed the adjustable gear set. I like the acentric adjuster and just bristle at the thought of the slotted hole type which is why I went with Cloyes.</p><p></p><p>Building engines is the coolest hobby :coolman:</p></blockquote><p></p>
[QUOTE="SlowSVT, post: 13073997, member: 20202"] Interesting points I don't think you can attribute oil pump failures to the gear rotors themselves. Billet steel is pretty tough material and less brittle then the PM factory gears. They just won't break on their own. I think harmonics, movement of the crank snout or ingesting debris can be attributed to the vast majority if oil pump failures. The gears straddling the snout carries some risk. Haven't decided whether or not to cut the second keyway, once I turn my attention to building the engine those details will be decided. I bet those are the same valve springs I have. When I comes to springs it hard to tell who made them? what they are made of? what heat treatment did they get? They all look the same and you just never know unless you buy directly from the guys who made them. I discussed this topic over with many people with many "opinions". Pac is the largest manufacturer of automotive valve springs and I have a friend who has an inside contact in the engineering dept who had some interesting information on the industry as it relates to our cars (remember the outbreak of Comp spring failure). Their retainers were at 7.5 grams vs. the OEM 9.2 for grins I only needed the adjustable gear set. I like the acentric adjuster and just bristle at the thought of the slotted hole type which is why I went with Cloyes. Building engines is the coolest hobby :coolman: [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Cobra Forums
New Edge Cobras
Highest compression for boost?
Top