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Adam H P15 D30

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Everything posted by Adam H P15 D30

  1. Adam H P15 D30

    Split header - dual exhaust - reduced torque?

    I agree with you and Tim on the benefits of multi carbs and dual exhaust so I'm not sure why you're targeting me, but since you asked... My redline is somewhere around 4500, give or take My flathead can't run to 6000, why would I try? There is no need to run it up that tight I don't have a video of my flattie runnin. I just drive the $hit out of it My F150 revs to 6K faster than that Velociraptor I don't care if Tim or others stay away because their feelings get hurt
  2. Adam H P15 D30

    Split header - dual exhaust - reduced torque?

    I'm not saying it can or can't but I could snap a Briggs&Stratton to 6k with no load. It sure seems like this "Velociraptor" struggles a bit to get there....
  3. Adam H P15 D30

    The Lowered Stance Picture and Build Thread

    Yes, 1 loop cut off
  4. Adam H P15 D30

    230 with 218 rods.

    Actually you would be better off with longer rods. If you don't have new pistons yet, have some made with a slightly higher wrist pin + you get a modern piston / ring design. If I ever go through my 230, I'll install 218 rods with shorter more modern pistons. On edit: assemble 1 cylinder and see how far the piston actually comes out. Some of these engines don't come all the way to the deck, might be ok with fly cutting the piston a little???? But then you still have a 4 ring pack long heavy piston.
  5. Adam H P15 D30

    Split header - dual exhaust - reduced torque?

    I'm not sure where you are getting your information but you are comparing modern engines with basically antique/obsolete technology. I agree that with modern vehicles it is very difficult to improve on the stock intake/exhaust because there was actually "engineering" involved with their design. In the earlier years these engines were engineered just enough (not much) to meet target specifications. Once met no further engineering was needed. Even the factory offered upgraded intakes and exhausts among other items during the muscle car years and even before. Examples would be the Super Stock Dodges, 300 Hemis, GTO's........ Now for late models - In the late 90's Ford lowered the hood lines of the Mustang, by doing so the Cobra intake was pancaked and the car was released to the public without meeting it's advertised HP. Subsequently there was a recall that replaced the intake with a hand ported one and replacing the exhaust with a more free flowing system, thereby increasing the HP to the advertised amount, so it does improve things. Technology improves over time also, look at what people called high performance cars in the 80's verses today. A 81 fuel injected vette made 150hp in California, now 600+ and better mileage / driveability also. When I was racing Pontiacs in the 90's, if I dropped the hammer at max RPM as you state above I would have left parts at the lights. Please understand multiple carbs, especially on these long Siamesed port engines, do make improvements all around with the only downside is a bit more tuning. I have done it and witnessed it first hand, you?
  6. Adam H P15 D30

    Split header - dual exhaust - reduced torque?

    My expierence with adding dual carbs and headers is the exact opposite of what you describe.
  7. Adam H P15 D30

    exhaust damper

    Weld it in the closed or horizontal position (warm engine position)
  8. Adam H P15 D30

    Who Is Actually Driving Their Vintage Mopars?

    Drove my 49 for a month while my kid was home from college. rain, shine, hail and a leaky windshield, added another 1000 miles to the clock... Need to revisit the vacuum wipers
  9. Adam H P15 D30

    The Lowered Stance Picture and Build Thread

    2" blocks in the rear + 1 leaf removed. 1 coil cut off the front. Could go another inch in the front.
  10. Adam H P15 D30

    Split header - dual exhaust - reduced torque?

    I enjoyed making my own and it was a fun project. Made better power, better driveability, better mileage. The acceleration from about 2000-3500 RPM was the biggest improvement. It made me very happy with my "too tall" rear axle gears I was once planning to change out. I have no dyno results but I did a before and after run up the same hill starting at the same speed and there was a significant difference. 55 is correct about dual carbs providing better fuel distribution on this engine.
  11. Adam H P15 D30


    I have found it easier to drive my FD equipped 49 like a normal 3 speed. Sometimes when I'm in slow, curvy, hilly parts I let the FD do the work but I feel it drags the engine down too low when stopped. Maybe I'll lower the fluid level and retry some day but remember, the clutch is smaller than a non FD clutch so don't ride it too much.
  12. Adam H P15 D30

    Coles notes on 12 volt conversion please...

    On my 49, I used a 65a 1 wire alternator but if I had to do it again, I would use a 3 wire for better charging at idle but it's never been a problem. I used a blower motor out of a 60's Dart and it was a bolt in and works good with the original 2 speed switch. Instead of spending a lot of $$$ on converting the fuel gauge, I used a $12.00 runtz resistor from Speedway but it probably would work fine on 12v. Been running my 6v starter as-is for years with no issues. I converted my AMP gauge to a volt meter and the original clock has been running on 12v for years and works perfectly. 12v coil and a slant 6 electronic distributor because I have 12v makes a big difference starting. I hide all my relays in the old voltage regulator on the firewall.
  13. Adam H P15 D30

    A 1948 Plymouth Defeats Winter

    Too bad you could only read the teaser paragraph without a subscription.
  14. Adam H P15 D30

    1K or 2K Enamel Over Rustoleum Auto Primer

    I am not an authority on paint and I would never claim to be, but I shot a 2 part Urethane clear coat over Rustoleum enamel on the roof of my 49 without issue. In fact I shot it over the old paint and rattle can primer spots without issue. 7 months of sitting in the sun, rain and dirt, looks like the day I shot it. FWIW When finished spring of 2018 last month, no issues Adam
  15. Adam H P15 D30

    from the driver's seat and other images

    Northbound hwy 35, 5 miles north of 84 (Alice’s Restaurant) headed toward 92. And you’re exactly right, nothing like the view of the road through a split windshield with the hood ornament leading the way. Adam
  16. Adam H P15 D30

    Dirty Oil!

    PCV needs a manifold vacuum source to function correctly. If you want a "closed" system you could plumb the breather to the air filter assy, but not the valve itself. Adam
  17. Adam H P15 D30

    from the driver's seat and other images

    Here is a shot take by my son as we drive through the coastal foothills in the Bay Area Thanksgiving weekend
  18. Adam H P15 D30

    Who has swapped in a ranger rear end

    Offsetting the pinion to one side will not cause any vibration as long as you don’t install the engine crooked.
  19. Adam H P15 D30

    1954 Plymouth Suburban Project

    PCV is nothing more than a metered vacuum leak with a check valve Incase of backfire. It is always doing its job except at WOT when the intake vacuum approaches atmospheric pressure (no vacuum). This is displayed about the same time the wipers stop. Adam
  20. Adam H P15 D30

    Me and the Meadowbrook

    Must be a "drive your car to work" day, glad I wasn't the only person. Since my daughter is home from school for a month, I loose my truck and my 49 becomes my daily. Looks lonely in the sea of plastic cars Adam
  21. Adam H P15 D30

    Rebuild Stock Steering Box or replace with Vega style?

    Here's one, much better than the rack & pinion option. Adam
  22. Adam H P15 D30

    ignition switch question

    I believe 49 was the first year.
  23. Adam H P15 D30

    37 Plymouth Sedan Resto- New Member

    It's the speed sensor, the "hose" is the wire shield.
  24. Adam H P15 D30

    1940 Windsor Coupe Triple Carb Manifolds-Which carbs to use?

    Your manifolds look top notch! Much better than the others out there...
  25. Adam H P15 D30

    What Disc brake conversion to use on a 53 coronet

    What size tires are you planning to run?

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