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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    I got the sales invoice for the 390hp crate. Is there options to have a headshop enlarge them exhaust ports? That’s what the prior owner said he had done. Larger exhaust valves
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    One wire alternator conversion- best method to run the thick power wire

    Yes, for the most part. But I think they actually care and seam like good guys. They kept the orginal 10 or 12 gauge power wire running over to the relay area. I was considering them for changing fuel tank and electrical fuel pump... Might just take a vacation day from work and DIY
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    One wire alternator conversion- best method to run the thick power wire

    I can't recall ever seeing a factory alt wire have a fuse and the power master instructions didn't mention a fuse. Would you want the fuse close to the battery or close to the alternator? The test sheet showed 188 amps at full rpm. Thats welding power. They did mention a separate...
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    One wire alternator conversion- best method to run the thick power wire

    Or maybe I actually did discuss with them the route. To include asking that better quality wire be used and to call me if the supplied cable wasn't long enough. :rolleyes: They didn't call me and instead used a thick stiff parts store cable. Charged me 2.5hours labor to remove old alternator...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    The 390hp crate came factory with 2.02. So I don’t know if that’s what he was talking about.
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    turn signals not working

    Does anybody have a chart or diagram of grounding points?
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    turn signals not working

    Check the common ground point. A little corrosion can cause headaches. 2nd would be the switch.
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    One wire alternator conversion- best method to run the thick power wire

    Had my one wire 170amp alternator installed today at a local hotrod shop. I wanted to give them a small job before sending them any big tasks. They ran the power wire from alternator down the valve cover behind rear of motor then up the firewall. I was thinking a shorter wire could had...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    The largest MOPAR Magnum heads and prior owner said they were machined for 2.20 or 2.02 exhaust valves. Idk if that’s even possible. I can verify it has 1.7 ratio roller rockers and she sounds like a big cam. Exhaust is full length TTI headers.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Most stock PCV valves have a poppet weight and aspring acting on it, at the beginning of it's travel. The vacuum will lift it off it's seat at about 2" and it gives some flow at 4-6" of vacuum. At 6" vacuum the poppet contacts the spring and now it is fighting both it's own weight and the spring...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Stock PCV didn’t open up enough or ar all with the large cam low vacuum at idle. I had 7” of vacuum at idle. ME Wagner has adjustable low flow and high flow.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    ME Wagner. Excellent instructions included with the product and website. i was right at the low vacuum setting of 6-7 so I used low idle spring set to the just 1/8 turn below the 400 engine suggestion. Then I used my hand to fell the cruise setting, you fell the check ball bouncing, I...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Oil psi is now good. The fuel injection IAC needed reset to hold better idle. Install dual flow adjustable PCV valve. Adjusted roller rockers. Prior owner only had 4 of them in spec. One was at least 3/4 of a turn too loose. The others were right at zero valve lash. 50psi when cruising...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Emailed Randy with Harland Sharp. He said to not worry about my 15psi hot idle oil pressure on pedestal mount roller rockers. He is looking at photos to tell me if I've got 1.6 or 1.7 roller rockers. I think I've got 1.7 due to the relief cut out.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Harland Sharp mentions that their needle bargains allow for more oil flow to the rockers. More flow = less pressure.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Harland Sharp has this note on the LA V8 Special Notes: * Needle bearing allow for more oil flow to the rockers. * Oil restrictors may be necessary to maintain oil pressure. They don't have any notes like this for the Magnum rockers.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    The 360 crate 390hp came with Hydraulic Roller Camshaft - 288°/292° duration, 0.501"/0.513" lift. Prior owner said he had a larger cam put in. He mentioned .520 lift but wasn't able to tell me what brand or model. He built the engine about 10 years ago, before the car was even ready. I...
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    Race Headers on a street car.

    Long tubes are typically lower and will cause some issues on driveways or speed bumps. "race" is often larger tubes which come closer to transmission fluid lines, shifter cables, the starter, and oil filter.... in other words "race" will cause other issues. But different brands are different.
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    Mopar Cast Valve Cover with ME Wagner adjustable PCV

    I see what the prior owner did. He found a wide enough grommet that mostly fit and he used black sealant to hold it in. Instead of using the 2nd oil filler cap. Most likely to have a shorter vacuum hose to run at the rear of the throttle body. Are you guys running two oil filler caps?
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    Mopar Cast Valve Cover with ME Wagner adjustable PCV

    Current setup has a small PCV on the valve cover passenger side rear. Front passenger side has a plug grommet. Driver side rear has a grommet with push in filter and front is the oil filler cap. The ME Wagner is larger inside diameter than the current grommet PCV location. I tried a 1.25"...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Doing both. Fixing what needs fixed to enjoy the car and if I get offered a good price I will sell it. This is my first Barracuda, I actually wanted a Dart. The wife liked the Barracuda looks better and now so do I. I really think I want a manual transmission. The 10 year discontinued...
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    Oil Pressure Sending Unit Question

    Bumping into a old thread. I needed this tip, thanks. I was able to use an extra wrench and a small MAPP torch. Bent it right to shape. Thanks a bunch.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    That makes sense. Comparing the roller rockers and roller cam to modern engines; those guys often report 10-15psi at hot idle. Prior owner spent money on parts; so I don’t doubt he got the best or largest flowing pushrods, rockers arms. Just worried me about proper installation Of those...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    No. Cheap aftermarket voltmeter.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Mechanical gauge installed. 65 degrees outside. Startup idle 65psi. After two cycles of the electric fan kicking in and off the hot idle psi was about 18-20. In gear with lower idle around 860rpm (guessing) The psi was 16-17psi. 1- proves the electric oil psi gauge didn’t like the low...
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Im not using a filter adaptor. Later on I want to do an oil filter relocation. It had a short Fram filter in the stock location. I used a short Purolator premium filter.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Running Mopar fuel injection kit. PCV hose goes the backside of the intake manifold under the throttle body.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    On a 80 degree engine I got 140psi on every cylinder plus or minus 4psi. Thats is pretty good, correct? It's been years since I've done a leak down test. I think i need a different tool.
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    New to me Barracuda with Mopar Crate 390hp low oil pressure

    Looks like the to the rear of the intake manifold.
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