Wrapping stock intake with tinfoil bubble and then heat resistant wrap?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by h1ph0panonymous, Jul 11, 2025 at 3:11 AM.

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  1. Brian1954

    Brian1954 Senior Member

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    The thermostat controls the temperature of the coolant. That is why I suggested that you remove the thermostat in the summer if you wanted your engine to run cooler.
     
    #161 Brian1954, Jul 16, 2025 at 1:40 PM
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  2. h1ph0panonymous

    h1ph0panonymous Member

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    Idk if you’re trying to fool me into killing the engine but please stop advising that. Once again I don’t need to mess with the thermostat because the thermostat isn’t what heat soaks the coolant...and you have nothing to say about the actual response I gave you instead you go to one I have to another person.
     
    #162 h1ph0panonymous, Jul 16, 2025 at 1:47 PM
  3. Brian1954

    Brian1954 Senior Member

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    193F to 195F engine coolant temperature is standard for the Prius engine. The Toyota engineers designed the engine cooling system that way. Take your car on the highway and drive at 60 to 70 mph. The engine coolant temperature will be in the 195F to 197F temperature range if you are traveling on a level road. You do not need to be concerned with the coolant temperature until it gets higher than 205F.
     
    #163 Brian1954, Jul 16, 2025 at 1:47 PM
  4. h1ph0panonymous

    h1ph0panonymous Member

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    With my cabin exhaust method I can get 188 degrees at 67 miles per hour on a 65 mile per hour speed limit highway. Yes it’ll reach 193 on slightly up hill highways when accelerating to stay up to speed limits during those stretches of up hilly-ness highways, 191 degrees if I go over 70 and cruise at that speed. It’s worse during the case of stop light to stop light driving, well because there’s less air you’re speeding through and catching but still to be getting 195 after acceleration from a stop light not even over 2200 RPM is just ridiculous and unnecessary temperatures but again that could be due to my regen braking missing for the past weeks making the engine work harder. We will see once I put a new connector in and get my DTC codes to clear for that issue and retrain the HV battery to maintain a regen braking healthier status rather than an engine that has to maintain the HV batteries health. Still going to wrap stuff under the hood, hopefully without adhesive installment and more so with clamps, might even get thicker and cooler tubing to replace stock hoses for everywhere the coolant travels.
     
    #164 h1ph0panonymous, Jul 16, 2025 at 1:55 PM
  5. Hayslayer

    Hayslayer Member

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    Maybe because it's the device which regulates coolant temperature?


    yeah, you need to just close the hood and let the car do its own thing. You're proving it in almost every post.
     
    #165 Hayslayer, Jul 16, 2025 at 2:09 PM
    Last edited: Jul 16, 2025 at 2:16 PM
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  6. Brian1954

    Brian1954 Senior Member

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    195F is NOT a ridiculous coolant temperature. It is the standard temperature that the Toyota engineers designed the cooling system for.

    Trying to reduce the engine coolant temperature by wrapping anything in the engine bay or switching to thicker hoses will NOT work. But if you do not believe me, try it and try to prove me wrong.
     
    #166 Brian1954, Jul 16, 2025 at 2:26 PM
  7. Brian1954

    Brian1954 Senior Member

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    The OP still does not understand how the thermostat regulates the engine coolant temperature even though I included the answer in post # 145.
     
    #167 Brian1954, Jul 16, 2025 at 2:29 PM
  8. h1ph0panonymous

    h1ph0panonymous Member

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    Their design is a fail due to it all having a causation is head gasket failure, keeping temps lower than designed will prolong the inevitable outcomes of their “design”.
     
    #168 h1ph0panonymous, Jul 16, 2025 at 2:48 PM
  9. ChapmanF

    ChapmanF Senior Member

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    Yeah, just for reference, 195℉ is squarely between the thermostat-begins-to-open temperature and the thermostat-fully-lifted temperature.

    [​IMG]
     
    #169 ChapmanF, Jul 16, 2025 at 2:49 PM
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  10. h1ph0panonymous

    h1ph0panonymous Member

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    Don’t care about the thermostat, it not the source of heat.
     
    #170 h1ph0panonymous, Jul 16, 2025 at 3:22 PM
  11. Brian1954

    Brian1954 Senior Member

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    You can believe anything you want. It is time for action rather than discussion.
     
    #171 Brian1954, Jul 16, 2025 at 3:28 PM
  12. Brian1954

    Brian1954 Senior Member

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    I guess you can lead a horse to water, but you can not make it drink.
     
    #172 Brian1954, Jul 16, 2025 at 3:35 PM
  13. h1ph0panonymous

    h1ph0panonymous Member

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    Anyways, anyone have a resource and material link to that guys aero and intake mods shown in this thread?

    Just showed it to my mechanic friend who has a modified Prius and he’s really interested in doing it to both our cars.
     
    #173 h1ph0panonymous, Jul 16, 2025 at 3:59 PM
  14. frodoz737

    frodoz737 Top Wrench

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    You need to concentrate your monies and efforts first on repairing your car...instead of discussing what-ifs and work-arounds in here.

    Reference post 159.
     
    #174 frodoz737, Jul 16, 2025 at 4:40 PM
    Last edited: Jul 16, 2025 at 5:19 PM
  15. h1ph0panonymous

    h1ph0panonymous Member

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    I just need a new connector for the ABS sensor in the rear left, not really a repair. About to order one on rock auto but I do need to replace the lower slide pins and bushing in the caliper bracket in both rears. Completely seized up. Ordering that with the connector as well.
     
    #175 h1ph0panonymous, Jul 16, 2025 at 6:16 PM
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