Full Answer
What size connecting rod do I need for 88mm?
I recommend a 5.7″ or longer rod for strokes longer than 88mm. Another thing to consider when you increase connecting rod length is that the longer the connecting rod, the further out from the crankshaft the piston is, and could potentially stick out the end of the cylinder.
What size rod do I need for 84mm crankshaft?
69-82mm crankshafts can use the VW (5.394″) or Porsche (5.354″) length rod, IF it is made of Chromoly. Once you start using an 84mm crank, you are required to use a 5.5″ or longer connecting rod so you don’t overstress the rod and rod bolts! I recommend a 5.7″ or longer rod for strokes longer than 88mm.
What is the maximum achievable rod ratio for an engine?
The maximum achievable rod ratio is always going to be limited by the physical dimensions of the block (deck height, tall or short), the longest rods that are available to fit the engine (off-the-shelf mass produced rods or custom made), and the shortest pistons that will work with the rod, block and stroke combination.
Is there such a thing as too long rod ratio?
Because of this, excessive rod ratio may actually be detrimental to engine performance. These relatively long and skinny Ford rods (4.6L left and 5.2L GT 350 right) have a rod ratio of 1.68, which is a little less than a 350 Chevy with 5.7-inch rods, but a little more than a Chevy 350 built with longer 6-inch rods.
How is rod length measured?
Rod length is measured from the end of your handle to the end of your rod's tip and can heavily influence your casting abilities. In general, smaller fishing rods cast shorter distances, while longer fishing rods cast longer distances.
How long is a stock 350 Rod?
CHEVROLET V-8 CONNECTING ROD LENGTHSDisplacement Cubic InchesLitersRod Length(inches)3505.75.700350(LT5)5.75.700350(LS1)5.76.0983836.36.00010 more rows
What does rod length affect?
Piston rod length affects everything—compression height, piston skirt length, piston speed at different portions of the stroke, even side-loading inside the cylinder. Some engine builders design their whole cam and valvetrain packages around rod length.
What is piston rod length?
What is Rod Length? The length of a connecting rod is the measurement from the crankshaft journal bore to the piston pin bore. It can be measured in either inches or millimeters. Changing the rod length will affect the Rod Ratio but will never affect the engine's displacement.
What is the rod length on a 327?
the stock rod length is 6.098" (the 4.8ls uses 6.275)" and the most common aftermarket rod is 6.125" .
What is the compression ratio of a 383 stroker?
Car Craft has scoured the earth to assemble all the details around building a stroker 383 Chevy.ENGINE PACKAGECOMPRESSION RATIOSame as above with 70cc combustion chamber10.13:1Same as above with 64cc combustion chamber10.82:1Combo B:Dished (18cc) piston, 64cc chamber, 0.042 gasket, 0.005 deck9.54:19 more rows•Aug 1, 2008
What is perfect rod ratio?
Some engine builders say a “good” rod ratio is anything 1.55 or higher. Production engines may have rod ratios that range from 1.4 to over 2.0, with many falling in the 1.6 to 1.8 range.
Do longer rods make more power?
A longer rod makes more torque with the same piston force, and since it's less angular than a shorter rod, reduces sidewall loading and decreases friction. All of this adds up to more power.
Does longer rod increase stroke?
Longer rods can improve rod stroke ratio, reducing thrust loading on the piston. A popular misconception is that rod length affects displacement, which it does not. Only cylinder bore and crankshaft stroke alter the displacement of an engine.
How are piston rods measured?
A Connecting Rod is measured between the centers of the crankshaft journal bore and the piston pin bore. It can be listed in inches or millimeters. The connecting rod's length will impact Rod Ratio . Also, changing the rod length will require new pistons with the correct Compression Height .
What are long fishing rods for?
Longer rods are for covering more water and casting a great distance. They're great for walking baits, deep diving crankbaits, and other power fishing reaction baits. Saltwater anglers casting from piers or the surf commonly use longer rods.
What is the stroke of a 1300 engine?
The stock crankshaft stroke on the 1300/1500/1600 engine is 69mm. The first consideration is that you MUST have a forged, counterweighted crankshaft. Some companies are selling cast crankshafts. A performance engine will put out more power than stock, and cast cranks will break or flex, it’s just a matter of when.
What size clutch should I use for a 6V car?
If you have a 6V car, or have a pre-63′ bus, you likely have a 180mm clutch. Normally I would recommend that you use the 200mm clutch size, since it has much more grip. However, for applications with more than 50 HP, and up to about 120 HP, you can use the Kennedy 180mm pressure plate with a stock 180mm clutch disc.
What discs are used for a 120 HP engine?
Use the stock disc for all applications up to 120 HP. From 120 HP and up, you have the option of using our dual friction clutch disc. This disc uses metal woven pucks on one side (for grip), and organic material on the other (for smooth engagement). I have never found another clutch disc this versatile! Another excellent disc is the Daikin. The dual friction disc requires a pressure plate one step lower than the Daikin. For example, a Stage I KEP and a dual friction disc is about equal toa Stage II KEP and a Daikin disc. I use the Daikin disc and a Stage II KEP on my 230 HP engine.
Is a 36 HP engine small?
36-40 HP engines are small, and you should not attempt to build a performance engine from these starting points. Prior to 1966, Beetles and Ghias came equipped with these engines. The 1300/1500/1600 engine should be the basis for all performance modifications. The cylinder hole in the case is the same for all 3-engine sizes!
Is the cylinder hole in a 1600cc the same as the bore hole in a 1600cc
The cylinder hole in the case is the same for all 3-engine sizes! Both the 1500 and 1600 engine use the same bore size in cylinder head, but the 1300 cylinder head is smaller. This means that a 1500cc engine can be upgraded to a 1600cc engine by simply installing the 1600cc piston and cylinder set!
