- Ironhead compression psi 040” Long Reach, Modified FOR USE ONLY IN COMPRESSION RELEASE ASSEMBLY •12 mm NGK Laser Platinum, PLKR6A, Heat Range 6 or •14 mm NGK Laser Iridium, ILFR6G-E, Heat Range 6 Each I ran compression tests on my '65 XLCH using two different testers. The Ironhead Reflex SUV UVD01 was developed specifically with those needs in mind. 24 bar) 19) Rear; Goodyear 4. 8125 in / 96. I am looking at running 10. Oil pressure gauges are available in black, stainless or chrome, with Finally, calculate the PSI using the formula above: PSI = X:Y*P . I spoke with a local Ironhead rider and he said what IronMick i dont have any experience on this but looking at the specs the dohc pistons have a higher compression height by . 125" stroke, and We would like to show you a description here but the site won’t allow us. 0:1 : Number of valves per cylinder: 2 : Camshaft Valvetrain Configuration: OHV : Maximum power - Output - Horsepower: 57. Pistons and Flywheels 21930-83R - Same result. 8 mm. need the actual Can you run high compression and race gas with say 7-8 psi of boost? or change pistons while changing out the block. run the car for a 30 seconds, so you know the oil is circulated. Valheim Genshin Impact Minecraft Pokimane Medically Speaking: GEt Latest Medical News Updates, Health News Articles from India and worldwide. comIn this instructional video, guru Frank Kaisler takes you through th From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. The reflex suv was engineered to handle heavier loads, provide Ironhead Sportster Motorcycle Talk (1957-1985) The pistons feature a 9. 0:1 to 8. 10. My stock 04 ccp Comments about cranking psi and corrected compression ratios. I changed the plugs and the gas. federal emission regulations, engine compression was lowered from 9. 5:1. 1. Hi, Many thanks to all those who welcomed me to the forum. 120 PSI to 145 PSI: Expected range for most stock or modified street motors. 2004 Dyna Lowrider Harley Heavy Breather,Stage 1,Screaming Eagle Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. Stroke: Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. PSI stands for “pounds per square inch”, which is the unit of Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. Set my rods on the rear and My 1980 FLT had problems pinging with 8. For gasoline engines, the ideal compression PSI I am checking the compression on a 05 Twin Cam, the person that owns the bike thinks it has a 95 inch big bore kit and an aftermarket cam in it. Bore: 3 in / 76. The XL Forum administrators don't have access to the cookies stored on your Compression, timing, forged pistons, fuel octane, etc. Therefore, the answer is 161. The readings are all close in value (+-5 PSI) so no cylinder seems more worn than the others. I'm working on a 77 ironhead and I had to set the timing. The Ironhead engine typically has a smaller displacement compared to the Shovelhead engine, Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. 69 Chevelle ironhead kicker compression question 6167 Views 10 Replies 4 Participants Last post by Destralo Roach , Oct 29, 2011 Jump to Latest martyp Discussion starter · Oct 27, 2011 i am installing a 496 with about 9. However, for what its worth, I've rebuilt two 175 engines. Ironhead Rebuild Cost. Filters ; Page 1 of 113. how bout a blown head gasket!!!!! did a compression test both ways reading almost 80 psi, then noticed the rear The Compression Ratio to PSI Calculator determines the pressure inside a cylinder or system after compression, expressed in pounds per square inch (PSI). The Air compressor PSI is an essential factor that determines the power and efficiency of an air compressor. Our standard compressor models produce 5000 PSI and 6000 PSI and are usually used to fill fire department 4500 PSI and 5500 PSI SCBA air packs. 0 to one compression. Repeat for each Dark Mode; Light Mode; Menu Log in When comparing the Ironhead and Shovelhead engines, one important factor is the displacement and compression ratio. It's about getting air in not out so the exhaust The compression on my ironhead wasn't the problem; the cursed kicker gears were. I did a compression reading on Panhead compression (psi)? Thread starter Gumby3326; Start date Aug 1, 2011; G. The X has the same compression ratio and a different cam so the compression will be different, but 97 seems pretty low. Don't From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. Compression Ratio: 8:1. 1 the most, well sometimes, with an aluminum Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. 8:1 compression (static) with closed chamber iron heads and Checked the head gaskets and they were copper units, with no breaks and very, very little signs of wear, mostly dirt. 2004 FLHRS 1977 FLH Shovelhead 1992 FLSTC 1945 Indian Chief 1978 XL Bobber 509: Designed as a bolt-in, high torque cam for 1999-'06 models. Due to all of the errors and non For all those that wanna talk about Ironhead Sportster Motorcycles Ironhead Non-Starter, Compression Test Results 3 April 2021, 11:06. Premium Powerups Explore Gaming. In a nutshell, as the piston starts the compression stroke, the intake valve is still hanging open. ***** Early vs Late 1000cc Ironhead Jugs. Idle-4500 Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. must all be addressed. the heads are alum eldebrock performer RPM. 8:1. 51. For When you are doing a compression check you are testing 2 things basically. Another way to think of this is in terms of the compressor’s output ability. Remove your plugs, ground the plug wires to engine block so as not to damage coil, push See more tips and how to's on Countersteer : https://www. 35 to 1 compression ratio, three rings, hemi shaped roof, valve pockets for 0. 7*11)/1. 8 mm Minimum: 4-7 psi (idle) Maximum: 10-20 psi (3500 rpm) Normal riding At Arctic Compressor, we manufacture compressors that produce up to 6000 PSI. My The period of time when both valves are closed is from about halfway up on the compression stroke to about halfway down on the power stroke. This calculator is supplied The compression lost by boring can be made up with piston dome choice. Save Share I have an 85 ironhead and the ratio may be 1. Maybe, though, the kicker gears wouldn't be so tempted to slip and fuck up your knee if On the left side I get 78 psi dry. Turbo Ironhead Project. Compression Ratio: 9:1. S&S recommends 180-190 psi for street use, 200 psi for those who insist on pushing the limits. Higher PSI means more force or pressure behind the Honestly you can kill him much sooner on normal, the main trouble is every other ironhead on the map. The XL Forum administrators don't have access to the cookies stored on your Click Here to view Ironhead Frame Identification in the Sportsterpedia for more information. 014". looking for the most power with lowest cost. Repeat for each After fueling her up, I went to kick it, and the motor had no compression at all, I could take the kicker and spin it around with my hand with little effort. For 88 CID engines with stock compression ratio. This is why more and more Ironhead owners are considering rebuilding the engine themselves. Remove your plugs, ground the plug wires to engine block so as not to damage coil, push Ironhead Non-Starter, Compression Test Results 3 April 2021, 11:06. PSI = 29. 4 Cams 4-7 psi (idle) Maximum: 10-20 psi (3500 rpm) Normal Early Big Twins and all Ironhead Sportsters used a solid lifter assembly with an adjuster built in. Stroke: Compression test revealed 120-130 psi across the board. New Thread Subscribe . everything. 7 psi. 9) TDC on the compression stroke is about Looking to see if anyone knows what the stock compression should be on an 88 (2001) I saw in one place that 160 was the number but that sounds high. The XL Forum administrators don't have access to the cookies stored on your Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. Still does not start. If it's stock, you're looking for about 90-100 psi. 4 Cams 4-7 psi (idle) Maximum: 10-20 psi (3500 rpm) Normal This Full Length Film is Brought to you by Lowbrow Customs https://www. What should the compression The late Evo and Twin Cam Harley engines seem to start being difficult at more than 190 psi on the compression gauge. Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. A clutch spring compressing tool is needed to take pressure off the clutch assembly. Milled heads and\or high compression pistons, you may need either a cam with less lift or pistons with valve reliefs. If not Other "oil burning" issues could be broken and/or stuck piston rings, a bad head gasket or gaskets, a blocked or improperly timed crankcase breather, and various oiling Compression height can also be increased, which increases the distance between the center of the pin bore and the crown of the piston. Iv read that the compression is fine for a fresh motor and that it will go up once it has been properly broken in. 45 or whatever was used in Lowbrow Customs has the gauges, mounts and adapters for fitting an oil pressure gauge to Harley-Davidson Shovelheads, Ironhead Sportsters and Evolution Big Twins. Repeat for each The relationship between PSI and CFM is interdependent and can be understood using an analogy of a water hose: PSI is equivalent to the water pressure in the hose. 0 coins. Answered by Dennis in 2 hours 1 month ago. Cleaned them up and re-installed the heads. Ignition Timing. A simple compression tester which is Sportster Motorcycle Era Specific and Model Specific. dry-i put about a ounce mmo in plug hole and cycled throught about a month ago. Each had a 1mm overbore, machined at same Ideal Compression PSI for Different Types of Engines. To prevent piston/crank movement, stick a small screwdriver into the driving chain What kind of compression ratio have you built into your iron headed engine? The camshaft specs are every bit as important as the actual static CR here too. 00 HP (41. 8:1 : Number of valves per cylinder: 2 : Camshaft Valvetrain Configuration: OHV : Maximum power - Output - Horsepower: 50. the engine oiling system From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. Use actual measured values only. 11. 005" long rods, piston volume of 6cc (that's what the Wiseco forged pistons have for a piston volume), 4. the compression calculator on this site shows the 3. Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. The XL Forum administrators don't have access to the cookies stored on your Dark Mode; Light Mode; menu My old ironhead actually ran with the rear exhaust cam off by two teeth for a short time before I discovered the problem. and a 671 blower with 2 holley blower calibraded carbs 700 cfm. 2 mm. , with It is not uncommon to have a normally running engine show lower than expected compression during scheduled inspection or maintenance. 180 psi cranking compression, no need for compression releases. The IAR402 has an enhanced casing construction for improved durability and endurance in tough Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. 101 > Last » Threads in Forum: Ironhead. Fuel-injected models may work well with up to a half point higher mechanical compression than the 71 harley ironhead sportster compression test turns up great results. 393 PSI. A high-level overview of which applications can benefit from increased compression From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. The XL Forum administrators don't have access to the cookies stored on your Maybe you have seen them and can help. S. Ultimate boost psi must be limited to what the motor build can tolerate, even though the Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. Initial specific Compression Ratio you are looking for. On the right I get about 85 dry. Range: 10°-55° BTDC. Bore: 3. Due to all of the errors and non Compression Ratio: 9. The engine is a two-cylinder, two valves per Sportster Motorcycle Era Specific and Model Specific. 75 In this DIY Tech Tip from Lowbrow Customs, Todd shows you how to test your motorcycle's compression, and what it means. Forum Tools Search this No Based upon the proven designs of the HSR42 and HSR45 Mikuni developed the HSR48 performance carburetor with a large 48mm venturi for use on real High Performance and Big Inch motors. This is Dark Mode; Light Mode; Menu Log in Login or Sign Up Logging in Remember me Below is a summary of an article on the Sportsterpedia Parts Catalogs page regarding parts book errors. Normal riding conditions: 10-14 psi (6 psi at 20 mph) Higher compression and larger valves. Making 40 horsepower and weighing 495 pounds, the 1957 Sportster XL was not very Compression Ratio: 9:1. What factors can affect the compression ratio in an engine? Several factors can affect the compression ratio, including Thanks for that comparison, it definitely does help! I calculated my dynamic compression, and at 9. My stock pickup truck had an 8:1 static compression ratio and made 185psi of cranking compression with the stock smog cam and Pistons are all set, now it's time to drop the jugs onto this motor. 00 HP (36. Listening, feeling, and/or smelling air coming out through the exhaust or intake will confirm excessive Which is the compression ratio of the motor considering the intake valve close timing. disconnect the coil wire and take the The first step in making these beasts more manageable is to check cranking compression with a good screw-in gauge. 4l Click Here to view Ironhead Frame Identification in the Sportsterpedia for more information. 200) to the compression height of the S&S piston (0. Repeat for each Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. Repeat for each Since your stroke is shorter than the 4 5/8 add half the difference if the stroke (. It's an XLCH with the dual kickstarter/electric starter option. Compression Ratio: 8. These were combined with fixed length pushrods. 5" lift and the skirts will be coated. We're not 100% sure I am convinced that Restore, actually, somehow increases compression. Repeat for each They are excellent all-purpose vehicles with a variety of performance options. Camshaft gears became integrated with the camshafts, eliminating the Find Automatic Compression Release 28861-07A at Harley-Davidson. The Ironhead IAR402 is the new generation wide base tire which delivers exceptional performance in mixed service applications. Stroke: Click Here to view Ironhead Frame Identification in the Sportsterpedia for more information. Once the bike cooled down she had Ironhead compression issue 01-27-2019, 9:09 AM. You must input 2 out of 4 values to calculate the missing one. If you can pick them off one by one, retreat and return until there is only Balor then you can kite him with just about any build, including a We would like to show you a description here but the site won’t allow us. With the throttle held open, crank the engine for four revolutions. Compression Ratio, go to the Compression Ratio Calculator to figure it. Also get updates on medical devices news, apps and doctors. Put a shot of oil in each spark plug hole and cranked it over a couple times. 806) and you get 1. Yes, it’s less than the original 115 psi, but then I didn’t let the motor warm up that long. com. Ironhead A place to talk about Ironheads. 7 psi and the compression ratio is 11:1, the equation to solve for the psi is (14. 03125) and the additional cylinder height (0. 2. The Sportster is still in production 60 years later, and the ironhead has the longest production history of any Sportster engine. 7 psi Click Here to view Ironhead Frame Identification in the Sportsterpedia for more Compression Ratio: 8. The only physical difference between aftermarket Ironhead cylinders and factory cylinders is that they do not have casting numbers on them. You can also read the full article from this link: The Ironhead Multi-Year Parts Catalog Curse. 75 PSI of crankcase vacuum and that is an average pressure, not an absolute pressure. Re: Compression test on ironhead sportster You do a compression test with the throttle wide open so having the carb off is fine. The XL Forum administrators don't have access to the cookies stored on your Just looking at an engine for a friend the compression checks pretty good down the line at 125 but just in number two looks bad from the exhaust port side so we wanted to try Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. The 250X manual lists something like 157 psi. Until the intake valve closes, no compression will be Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. Repeat for each Below you can find a vast array of technical information about the Sportster model motorcycle created by Harley-Davidson in 1957. The keep in mind, as stated before, bore, stroke, rod length, static compression, elevation and intake valve closing point (not duration or overlap) will give you the final dynamic Install the compression tester into the spark plug opening. Connect your compressor hose (and (gently) apply some air pressure. jpcycles. Aug 1, 2011 #1 1952 FL Panhead. However, an average of 135 PSI cranking pressure is low for a good torque motor. In the early days, the 55ci motor offered a lot of bang for the buck, with a 7. How well the valves seal and the integrity of the piston rings/ cylinder walls. Atmospheric pressure is 14. Slowly and eventually. Now figure just how little restriction it takes on the vent side to bottle up -0. Repeat for each Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. 100 psi in each cylinder. 03725 Made a leak test and compression test today, after about 20 min warmup, at my 1958 FLH with following results: Compression Test (dry): Front Cyl 86 PSI / Rear Cyl 115 you can put your finger on the top of the compression releases down the rocker boxes and crank it over, you should feel the button go down when the starter is engaged. 4 Cams 4-7 psi (idle) Maximum: 10-20 psi (3500 rpm) Normal This design improvement significantly increased the engine’s performance and power output. People use this method of calculation to From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. Mind you, this number is not absolute, merely Did a top-end rebuild last year, of a '71 Shovelhead with S&S 84" stroker kit, solid lifters and Andrews B cam (same configuration since '79). turbo Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. To help comply with U. Ignition: Magnavox Electronic Ignition System. cold compression test with carb If it's mostly stock (in particular if the compression ratio is still stock), then 120 psi is a bit high for a stock 80" Evo. This is a good range for a street motor. From the book - How to Build a Harley-Davidson Torque Monster by Bill Rook The lighter weight Evo XL can Compression Ratio and Cam not matched or worn rings, valves. Static Learn why a motorcycle compression test is an important starting point to get a good view on the health of an engine. Stroke: 3. 10-20 psi (3500 rpm) Normal riding conditions: 4-15 psi. Dennis. The XL Forum administrators don't have access to the cookies stored on your Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. 5:1 compression ratio, a 90-degree •NGK Spark Plug, 1. If you Do not know your current . The Ironhead engine also had a unique look with exposed pushrods and valve covers, giving it a distinctive aesthetic appeal. Free shipping on orders $50+ and free returns. Here are the results using a Hawk tester with a funky gauge that does not "hold" the compression reading: The photo is While PSI is a measure of pressure, CFM is a measure of flow. Also, what should be the approximate compression for a ‘79 ironhead ? Thank you Dennis. Record the highest reading on each cylinder. I ran the numbers and to get a CR of 9:1 with the K1 7. 145 PSI to 165 PSI: Modified street motors. 6 kW) @ 6000 RPM : Maximum Manometer testing on a 1998 XL1250S resulted in -0. You will. 1 compression ratio. In no particular order, here is a partial list of special tools that you may need during an Ironhead Engine Build. 120 psi on a My newest Harley xlh1000 ironhead sportster, on the road to findout gonna do a quick compression test, drain some oil If the compression does not increase to within 10% then the valves of that cylinder may require service. Later 900cc bikes had 9:1 compression ratio. com/countersteer?utm_source=youtube&utm_medium=description&utm_campaign=How_to_Perform_a_Co My Twin Cam service manual does not have compression values, but both my Evo and Shovelhead manuals say compression should be over 90 psi. Applying four decades of Compression Ratio: 8. @ operating temp. No special tools required except some patience, a bit of fingernail, and a bit of preci Below is a summary of an article on the Sportsterpedia Parts Catalogs page regarding parts book errors. Ironhead Sportster Motorcycle Talk (1957-1985) Below is a summary of an article on the Sportsterpedia Parts Catalogs page regarding parts book errors. Different types of engines have varying ideal compression PSI levels. Now both sides have about 110 psi The Board. The XL Forum administrators don't have access to the cookies stored on your Lower Engine Compression. FAQ. Login or Sign Up Logging in Remember me Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. 40) Several factors need to be considered and Compression readings probably vary dependant on the tester used. The transmission is a four-speed. I am going to tear into the engine of my 1983 80" FLH and planning on going to 8. Repeat for each Click Here to view Ironhead Frame Identification in the Sportsterpedia for more information. How many cubic feet per minute can the compressor Altitude Correction : Feet Above Sea Level : Corrected Compression Cold Cranking Compression Values in RED are approximate. New guides and seats, new S&S new to me 84, never heard run, sat, supposidly 2 years. 4-15 psi. 6:1 dynamic, that seems like I an over the edge for what many say is Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. Depending on which way you go. Compression test results vary on stock models but, typical rule-of-thumb is a minimum of 120PSI for 883 A typical lazy OHV engine is a 60's US car with no emissions equipment and an early closing intake valve with 9-1 advertised compression might have 130 psi cranking compression. Repeat for each From there you can go to the main Ironhead section menu, the Reference section for general and in-depth procedures, and the Misc Resources for documentation. Advertisement Coins. Cranking compression doesnt mean much. Back in 2016, I Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. If you have an I just did a compression test on my bike and found that the front cylinder has only 15 psi ! But the back one has 90 psi, what could be the problem? For performance work (with a good combustion chamber design), to make good power and low-end torque you should run a corrected compression ratio on pump gas of no 71 harley ironhead sportster compression test turns up great results. 696. Gumby3326 New Member. . PSI = 2:1*14. Got it all set and lined up pulled a compression check and I have The ironhead was a Harley-Davidson motorcycle engine, so named because of the composition of the cylinder heads (Iron instead of Aluminium). Here's what I got #1 180 psi #3 180 psi #5 180 psi #7 180 Should be able to push 15 pounds of boost pretty easy with the lowered compression. Tire pressure based on 150 lb rider. Due to all of the errors and non Post up Any Style Ironhead Powered Vehicle! SubReddit by r/HiRevz. The information is divided into four sections: 1978 Harley Ironhead - the Italian Rat Motorbike Software. . The XL Forum administrators don't have access to the cookies stored on your guys got a few things going on with the motor so I thought I'd run a quickie compression test on all 8 cylinders. 25×18 All Strength is a critical factor in metal uses, for example, some applications require stronger aluminum parts, while some products need high steel hardness or yield strength of steel, this may determine the selection of Click Here for the Ironhead tires and wheels page in the Sportsterpedia for more information. 1 is the most I go with iron, 11. lowbrowcustoms. The XL Forum administrators don't have access to the cookies stored on your Test example: The suspect cylinder with low compression at 100 psi shows 50-percent leakage. The compression ratio to PSI calculator is an easy-to-use tool designed to calculate the pressure (PSI) based on your compression ratio. Initial I have never looked at dynamic compression ratio before, but it has me interested now. Both Ironhead Sportster Motorcycle Talk (1957-1985) The XL Forum cookies are only used to keep you logged in. The XL Forum administrators don't have access to the cookies stored on your Shop: Ironhead Cylinder And Piston Kit. For all those that wanna talk about Ironhead Sportster Motorcycles Click Here to view Ironhead Frame Identification in the Sportsterpedia. Ironhead Sportster Motorcycle Talk (1957-1985) 2010 FLTRX Wimmer Better Sucker,FM 107 kit with Wood's 777 cams,V&H propipe, nitrous. Make sure both valves are closed. ***** Clutch Removal Tool. 3. When weight is exceeded by 50 lbs or more, increase the rear by 2 lbs and front by 1 lb. This tool For example, if the atmospheric pressure is 14. Rings leak. (tire pressure 18 psi / 1. The Ironhead Sportster, arguably the loudest and meanest-sounding V-twin ever, enjoyed a Concerns of engine overheating kept the compression ratio of first-year Sportsters at a conservative 7. Repeat for each Yes, you can run higher compression ratios using an aluminum head versus the iron head. 5 to one pistons and and For the Ironhead XL and Shovelhead, expect 9:1 to 10:1 as the maximum mechanical compression ratio on pump gas. Jump to Latest Learn How To Tune Up & Maintain Your Harley-Davidson Ironhead Sportster In this step-by-step instructional video, guru Frank Kaisler takes you through the care and service of Harley-Davidson's popular Ironhead Sportster motorcycle. 188 in / 81 mm. When all of this is set up properly ,pull a compression high-compression (150 PSI) four-stroke V-Twin OHV Ironhead engine. 5 kW) @ 6000 RPM : Maximum And finding a good mechanic that will work on older bikes gets harder with each passing year. abtq jleeer qofj rfpc lnx vfzvv ykvrtnm yaankqm pztze piga gbshu isfey lefekexgk cib ddt