Sep 25, 2013 · The analysis of two samples, layer G and layer F indicate the following proportions of parent material to daughter product. If the half-life of the parent is known to be 75 million years, what are the ages of the two layers? Layer G: Parent (50%) Daughter (50%). Age=? Layer F: Parent (25%) Daughter (75%). Age=? How is this calculated? Is there a formula?

May 05, 2014 · The duration (duration of the valve lift) is the time that a valve is open during a cycle. For the K-cam it's 277°. For the K-cam it's 277°. If you know the intake opening and closing moment you can also calculate the duration; opening 27° before TDC + closing after 70° BDC +180° (from TDC till BDC is always 180°) = 277° They increase the rocker ratio from 1.5 to 1.7 yielding an increase in lift of .065. They replace just the intake rockers and while they don't change the advertised duration of your cam . . . they do increase its intake duration at .050. They were advertised to increase output by 5 horse power on a stock 216. This page will generate a table of lift figures for a harmonic cam from values entered in the fields below. The lift table is used in machining the cam profile by the milling method (see Page 7 of the Feeney Construction series for a description of this process). The following links provide more detailed information.

Does an increase in rocker arm ratio improve engine performance? A: The lobe lift of the camshaft is multiplied by the ratio of the rocker arm to determine the valve lift. For instance, a cam with a .320-inch lobe lift and a 1.5-ratio rocker arm will have .480 inches of valve lift (.320 inches x 1.5 = .480 inches).IMO no, plus it places more strain on the rocker bolt and throws off geometry. I know people with 1.8's break rocker bolts occasionally. IMO the best option is the caged bearing upgrade by Harland Sharp on your stock rocker arm bodies if you are a daily driver.

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Calculate Camshaft Lobe Centers and Duration. 1/11/2021 10:05:30 AM PONTIAC POWER RULES ! ! ! Do you like this site? A small donation would be appreciated. Dec 03, 2012 · Does an increase in rocker arm ratio improve engine performance? A: The lobe lift of the camshaft is multiplied by the ratio of the rocker arm to determine the valve lift. For instance, a cam with a .320-inch lobe lift and a 1.5-ratio rocker arm will have .480 inches of valve lift (.320 inches x 1.5 = .480 inches).

Apr 27, 2014 · The Crane Marine Camshaft is designed specifically for marine applications. It's intake duration at 0.050 lift is 228 degree and exhaust duration at 0.050 lift is 236 degree. Ratio of the rocker arm is 7.1 and is ground with 0.0012 lobe taper. Market Value Ratios Fancy Paws' year-end price on its common stock is $20. The firm has total assets of $40 million, the debt ratio is 40 percent, there is no preferred stock, and there are 2 million shares of common stock outstanding. Calculate the market-to-book ratio for Fancy Paws. 0.47 1.67 8.00 10.00...

Comprehensive Rocker-Arm Math Calculator reveals timing changes, from lash and ratio changes (see our Feature-Focus: Rocker-Arm Math)! Improved Pro-Print features. Comprehensive "presentation quality" reports. Graphs now in "printer friendly" colors, regardless of user color scheme.

Our Derivative Calculator tool supports all the most recent functions, computing and several other variables which are essential in 1 tool. The Debate Over Arc Length Calculator . Thus, the duration of arc AB is 10. The duration of AB will equal a particular part of the circumference. Then explain arc length in conditions of circumference. Apr 05, 2019 · Start running a dynamic compression calculator and see what head cc's need to be to get the compression right on a stock stroke motor. I didn't want to cut the heads and lose cooling fins, so I had to dial back the cam choice. Your gearing would support a narrow power band "big" cam, but would also make a stock motor seem a lot more peppy as well. Static Vs. Dynamic Compression Ratio. Dynamic Compression Ratio (DCR) is an important concept in high performance engines. Determining what the compression ratio is after the intake valve closes provides valuable information about how the engine will perform with a particular cam and octane.

FINRA enables investors and firms to participate in the market with confidence by safeguarding its integrity. We deploy deep expertise, leading technology and extensive market intelligence to serve as the first line of oversight for the brokerage industry - all at no cost to taxpayers. We are a not ... Jul 04, 2019 · Depending on the manufacturer (this is a massive point, as Holley, Edelbrock, and Quadrajet each use different tuning methods, namely, Edelbrocks only let you change air ratio, not the fuel ratio). There should be adjustment screws located near the fuel lines. Long call (bullish) Calculator Purchasing a call is one of the most basic options trading strategies and is suitable when sentiment is strongly bullish. It can be used as a leveraging tool as an alternative to margin trading. Our loan calculator tool allows you to calculate your monthly aircraft loan payments using various loan terms, interest rates, down payments and loan amounts. It includes advanced features like Monthly Payments by Term tables and the ability to view Principal and Interest amounts. This is for estimation purposes only. Mar 06, 2007 · If a cam is built around a 1.6 ratio rocker and you use a 1.72, what will it do to the duration. I know how to figure the new lift #'s, but I've only heard in passing that the duration is also affected. Feb 21, 2014 · Increase Rocker Arm Ratio. Camshaft lift x rocker arm ratio = valve lift. By increasing the rocker arm ratio in this equation, you can effectively increase valve lift without swapping out your camshaft. For example, switching from a 1.5 to 1.6 ratio on a small Chevy or stepping to 1.8 ratio on a Ford application will yield a greater valve lift.

This is a valid way of *contemplating the universe* I suppose, and duration will be affected at the given lifts if you use different ratio rocker arms. Indeed you can imagine "duration at 0.600" is zero with 1.6 rockers and yet is 12 degrees with a 1.7 rocker arm, given the appropriate lobe. But that's not the way camshafts are specified.