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  1. 73c20jim

    Difference between stock air cleaner and aftermarket?

    The rule of thumb with the average V-8 is 1 hp for every 10 degree (F) drop in intake air temp. That works out to about 1% for 30 degrees. Source https://www.physicsforums.com/threads/hp-gains-from-colder-air.489172/ See here for "ram air". http://wallaceracing.com/ram-air-calc.php All that...
  2. 73c20jim

    What does a automotive thermostat do?

    http://www.tuneruniversity.com/blog/2012/04/low-temp-thermostats-whats-the-advantage/
  3. 73c20jim

    What does a automotive thermostat do?

    On the street I run the one that is OEM. The water and oil need to be heated to a certain temperature to function properly. Remember the thermostat does NOT control the high temperature, only the low. If a motor runs at 200F without a thermostat, it will run at 200F with a 160F 180F, 195F...
  4. 73c20jim

    Does anyone know where this goes?

    OK, if we are voting, I vote for clutch spring.
  5. 73c20jim

    What does a automotive thermostat do?

    I agree with all you are saying. I might have worded it poorly. The most important thing I was trying to say is has no control over the coolant's high temperature once it had opened.
  6. 73c20jim

    What does a automotive thermostat do?

    We would takes the guts out of a thermostat and use just the flat section with the hole in it for our racecars. That plate would serve as the proper restriction. A thermostat has no control over engine overheating. It just controls the minimum temperature. See my original post.
  7. 73c20jim

    What have you done to your square lately??

    Converting horse shed to truck working place. Extending one side for work area. Temporary workbench and storage area . . Closing in one side for workshop
  8. 73c20jim

    What have you done to your square lately??

    Gauge install. Hooked with temporary connectors. Last picture all permanently wires, in place in dashboard. Don't work. Battery issues.
  9. 73c20jim

    What have you done to your square lately??

    Here are some pictures: View of Tombstone and the tombstone Hills from the front gate of my house.
  10. 73c20jim

    at sea level........

    Just remember that all specifications like timing and jetting are given at sea level. Didn't care when I lived on the east coast at elevation of 375 feet. Didn't even know it was an issue. Now living at 4500 feet, it makes a difference. Thinner air. Timing and suggested jetting might need to...
  11. 73c20jim

    What does a automotive thermostat do?

    I say it is a device that determines if the coolant in the motor is routed through the radiator or not and will bring the coolant to operating temperature. Once it does that, its job is done. Should the coolant temperature drop below the rating of the thermostat, it wakes up and by routing the...
  12. 73c20jim

    Dual tank delete

    Other than the left side fuel fill hole, what is the difference between the two beds? I'm thinking of removing a right side section of an old bed around the fill hole , and welding it into my current bed on the left side. Comments???
  13. 73c20jim

    What have you done to your square lately??

    For Monday.
  14. 73c20jim

    Time for a new radiator

    By the way, I'm in Tombstone. Come visit some time and I'll give you the grand tour, and tell you the truth and the facts about it. Professional Tombstone tour guide.
  15. 73c20jim

    Time for a new radiator

    In all of our Corvette road race cars we took out the thermostat, ripped the guts out, put back the stripped piece as a restrictor, took off the fan, removed the fan shroud and ran about 210F for hours. Never had a problem with any of them in any outside temperature. Nothing to open and close...
  16. 73c20jim

    Rear shocks after flip kit.

    :big_banana_Dance: Great first post. Welcome from Tombstone, AZ.
  17. 73c20jim

    What have you done to your square lately??

    Being Sunday, I'm not doing nothin'. Maybe take your stupid pictures.
  18. 73c20jim

    Cold Air Intake options

    The rule of thumb with the average V-8 is 1 hp for every 10 degree (F) drop in intake air temp. That works out to about 1% for 30 degrees. Source https://www.physicsforums.com/threads/hp-gains-from-colder-air.489172/ See here for "ram air". http://wallaceracing.com/ram-air-calc.php All that...
  19. 73c20jim

    Time for a new radiator

    Don't think I am wrong. Watch the attached video.
  20. 73c20jim

    Decode block number????

    Thanks. Was this available in a 73 c20 truck.
  21. 73c20jim

    Battery took a shit????

    Yes, that was my next thought. Didn't do it because it is a pain. Also put battery charger on 60 AMP start and tried. ZIP.
  22. 73c20jim

    Decode block number????

    What I'm asking is what does the T0412 mean? Tonawanda ???
  23. 73c20jim

    Time for a new radiator

    Any engine can overheat with any thermostat. If an engine wants to overheat it will. A thermostat regulates minimum temperature not maximum.
  24. 73c20jim

    Bad vacuum module?

    Had a 1965 Buick Wildcat once. Started smoking thru exhaust like crazy. Wouldn't shift. Evidently The modulator took a shit and the engine started sucking AT fluid to the engine via the vacuum hose.
  25. 73c20jim

    Battery took a shit????

    Truck started find. Disconnected the positive to work on gauges. Worked on gauges a couple days. Rehooked positive. Tried to start . ZIP. Like nothing. Hooked up battery charger. Volts 12.3 Percentage 34% Charged battery. Volts 12.3 Percentage 100% Tried to start. ZIP. Voltage 12.3...

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