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SORN
by OldSkrote - 31/07/25 02:07 PM
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New
by Rex_tulips - 30/07/25 07:59 PM
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Aug 24th, 2023
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Joined: Feb 2016
Posts: 7,944 Likes: 218
Talk Morgan Guru
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Talk Morgan Guru
Joined: Feb 2016
Posts: 7,944 Likes: 218 |
I would imagine this is down to the emission engineering ? Most modern cars aim to get the engine up to temperature as quickly as possible so they can manage the emissions and during this phase it might be keeping the hot water within the engine loop? If the AirCon in a big BM is setup correctly it may supplement this to give you heat through an electric element? Just boot it a bit more  My Ford engined Roadster has the engine quick warm up bypass and heater feed taken from the same cylinder head coolant rail, albeit former from the front and latter from the rear. Return for both arrive in the same mixing chamber feeding to circulating pump and prior to thermostat controlled radiator circuit. This places the two effectively in parallel and I imagine most modern cars work in a similar manner. There are no possibilities for a quick warm up to benefit emissions compromising heater output therefore. Heater plumbing, core capacity and heated air ducting are another matter though.
Richard
2018 Roadster 3.7
1966 Land Rover S2a 88
2024 Royal Enfield Guerrilla 450
1945 Guzzi Airone
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Joined: Jan 2022
Posts: 91 Likes: 2
Just Getting Started
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Just Getting Started
Joined: Jan 2022
Posts: 91 Likes: 2 |
The first CX cars had wondeful air to the dash vents but no physical pipe connection to the footwells, they must have assumed air would find it's way down there, it didn't. The first fix was 3D printed parts to direct the air, that was better but definitety feeble even with the dash vents closed. I haven't felt any improvement on later cars so that seems to be as good as it gets. Interesting, that would explain why I get no air. Surely that however must be either a mistake or a design fault.
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