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my 2003 cobra quick over view of compression test, dyno pulls,
I just finished testing the compression on my 03 cobra with 90K miles. The passenger side cylinders are between 150 and 160 the drivers side are all between 90 and 100. Has anyone had this problem?
these questions should help you determine the overall use of the car and what .
So looking to purchase 03 cobra from member here and test drove car a .
these questions should help you determine the overall use of the car and what compression to go for. i would shoot for a minimum of 9.5:1. the increased compression with . So looking to purchase 03 cobra from member here and test drove car a couple weeks ago and had him bring to do compression test today at Goodyear where i work. Car . Compression test kit here https://www.amazon.com/gp/product/B000R5CPAQ/ref=as_li_qf_asin_il_tl?ie=UTF8&tag=2004047 .
82,000 Mile Compression Test - Questions. I recently retired my Cobra to the garage, now that I have a replacement daily driver (2004 Ranger Tremor), so for the past few . rishi65 said: Just pressing the pedal to the floor isn't quite enough. The last thing you want is to go to all that trouble and then have the results skewed. 1. Bring engine up to .
Most likely ignition problem, but if test does show low compression. Then try the sea foam first, before you tear down the engine. The TSB you listed is for a 4 valve engine.2003 mustang Cobra 4.6 4v supercharged quick how too compression test and dyno pulls #cobra #mustang#ford#2003-2004#compression test#dyno Revised aluminum heads and dished-top pistons drop the compression ratio to 8.5:1 to tolerate the higher combustion pressures encountered during maximum supercharger boost (up to eight pounds). An 03 Cobra should show somewhere around 180 psi cranking compression, give or take a bit. Your best cylinders are only 150 / 155. Assuming there is no bore damage (check like Matt suggested), my bet would be the .
2003 Ford SVT Mustang Cobra. 2003 Ford SVT Mustang Cobra . now link the lower-compression dished pistons (8.5:1) to the crank. . I'll save you a look at our Road Test Summary by offering that .2003 -2004 Cobra Engine/Drivetrain: 2003 -2004 Cobra Engine Displacement: 4.6L 281cid DOHC Modular w/Eaton Supercharger: 2003 -2004 Cobra Compression Ratio: 8.5:1: 2003 -2004 Cobra Horsepower: 390 hp @ 6000 rpm: 2003 -2004 Cobra Torque: 390 lbs.-ft. @ 3500 rpm: 2003 -2004 Cobra Transmission: Tremec T56 Six speed: 2003 -2004 Cobra Rear end So looking to purchase 03 cobra from member here and test drove car a couple weeks ago and had him bring to do compression test today at Goodyear where i work. Car has just over 23k miles and has posi port, dragon tb, jlt intake, full exhaust and KB BAP making over 500 rwhp. Car is late build. Frequently asked questions about the 2003-2004 Cobra . Toggle navigation Main Menu . CobraBob's Terminator FAQs ' 03-'04 Cobra Frequently Asked Questions. If you would like to buy, or get information about, my Shifter Gaskets, . Include both a compression check and leak-down test. There are even 3rd party inspector services available in many .
compression test on 03 cobra
What's your opinion in compression on 03 cobra
i just did a compression test on my motor and was wondering if anyone has done this or if these numbers sound okay. i have tested motors that were from 125-220, and my motor was at a low of 155 to a high of 175. so i hope this is normal and/or if all the numbers are a little low for having 64k. they averaged 160 psi. Check out the comparison of the 2003 Ford Mustang Mach 1 and SVT Cobra from Car Craft Magazine . and the compression ratio has been upped from 9.85:1 then to 10.0:1 now. . Car and Driver's . Do not confuse a "compression test" (cylinder pressure) with overall compression...Cam overlap has a lot to do with cylinder pressure at low rpms,I've seen one 351-W with 10.5 to 1 calculated compression,run 120 psi on each cylinder in a "compression test",doing the oil sqirt in each cylinder gave NO higher reading,leak down test showed .
The more dish the piston has, the lower the compression will be. Flat tops and domed pistons increase compression of the cylinder. Ford chose a -17cc dished piston in the 99-04 mustang GT which provides the 9.66:1 compression ratio. By utilizing a flat-top or domed piston, the compression can be raised to provide a bit more ”squish”.
Here is the results of today compression test on my cobra 1. 190 2. 190 3. 190 4. 190 5. 190 6. 180 *** 7. 180 *** 8. 155 6 and 7 when up to 190 after add a tbs of oil. One quick question will a failed compression test make the car undrivable and will it cause it to loss vacuum? Thanks for your help. I got a 2003 Cobra that I bought in 2004 with only 5000 miles on it. The car has been running fine and it now has 67k miles on it. . Then squirt some oil/trans fluid into each of those two and take a wet compression test. If the compression is still low, that would indicate a valve or gasket problem (since 6 & 7 are side by side). If the . How do i do a compression test? I want to do one on a 03 cobra i bought stock with 86k miles. Im sure its fine, reason for is im going to sell it. . 2003 SVT Cobra (Triple Black) 490/490 - Sold 2003 GT Vert - Save Share Reply Quote Like. intmdtr. 623 posts 03 cobra / 97 prelude / 06 cbr1000 / 03 cbr600 / . 1883 posts
This ended up to be the 2003 Cobra. This Cobra has one deadly bite A modified 32 valve, 4.6 liter engine equipped with an Eaton supercharger and aT56 6 speed transmission and a heavier duty rear end. . This removes heat gained during compression to make a denser, more powerful compressed air charge. To provide strength necessary for the . I am about to put a vortech on my 96 w/ 86k miles. I wanted to make sure my rings and valves etc. are good so I did a dry compression test. They ranged from 175-180 w/ the exception of one cylinder ( second cylinder from the firewall on the drivers side) that I tested twice and it only made 165 PSI. A compression test will help you to determine the health of your engine by measuring the pressure of the air that gets compressed by the piston rings against the cylinder head valves. . (2003-2008) How To Test The MAF .
The late model Mustang that rings a bell in any blue oval enthusiast's mind is the 2003-2004 Mustang Cobra. At 390 factory-rated horsepower, the supercharged 4.6-liter 4-valve modular engine produced . One-Year Test Verdict: 2003 Ford Mustang SVT Cobra review. Research Ford Mustang price, engine, fuel economy, performance, accessories, tranmission & interior/exterior specifications. The 2003 SVT Cobra is the new benchmark, and proudly carries on the tradition of Mustang performance leadership." . They lower the compression ratio to a blower-friendly 8.5:1 and have a . At the test track, it proved clear that this reborn Mach 1 is far more than period graphics, '60s/'70s-style Magnum 500 wheels, "shaker" hood scoop, and semi-gloss-black deck spoiler.
Tested: 2003 Ford SVT Mustang Cobra
Join 5.0 Mustang & Super Fords Magazine for a bolt-on test for 2003-2004 Ford Mustang Cobras to see which parts are the most cost efficient while producing good horsepower. . '03-'04 Cobra Bolt . I recently bought a 96 Cobra Mustang as a parts car. (needed to give the motor away. Long story for another thread.) The car was in a light front end accident, but the motor was totally fine. I paid a local "Performance" shop to perform a compression test prior to purchasing the car. They came back and told me it was 85-90 PSI across the board.
How hard is it to check your Mustang for bad compression? Then follow along as Jay walks you through each step of figuring out if you've got an issue or if e.Upon its release, the 2003 Mustang Cobra engine was the newest iteration of the Ford 4.6 Modular V8 platform. Additionally, the Terminator Cobra engine is a 4.6L Dual Overhead Cam (DOHC) V8. While the 1996 SVT Cobra was the first to boast a DOHC design, many argue that the Terminator perfected it.
Well I finally did a compression test on my 98 cobra with 22k miles on clock. Results are as follows: All cylinders except # 5: first crank 125 second crank 178 . Jan 23, 2003 Messages 163 Location VA. To get 0 on your gauge is awfully odd unless something drastic has happened. Ive tested engines with severly burnt/broken valves and still .
2003 Cobra Oil Capacity + ALL SPECS Thread starter ChicagoMike; Start date May 10, 2004; May 10, 2004 . Valve spring compression pressure—intake 711.47 N @ 26.19 mm (159.9 lb-ft @ 1.031 inch) . Radiator Cap Pressure Test Specifications 110 kPa (16 psi) Thermostat Opening Temperatures Starts to open (Cobra) 80-83°C (175-182F°) . 2003-2004 Cobra Specs. Tags . Compression ratio 8.5:1 Cylinder Head and Valve Train Cylinder head gasket surface flatness 0.10 mm (0.004 inch) max. overall . Radiator Cap Pressure Test Specifications 110 kPa (16 psi) Thermostat Opening Temperatures Starts to open (Cobra) 80-83°C (175-182F°) .
A compression test with that cam showed 130 +/- 25psi, but after I swapped cams and only cams, my compression went to 150 +/- 5psi. to a known good oneAll cylinders under 100psi sounds like the camshaft is too large or it is improperly timed with he crankshaft, also pushrod legnth and rocker arm adjustment come into play here.
Low Compression
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2003 cobra compression test|2003 Cobra driver side cylinders low on compression