Cool Air Intake. Temperature measurements to quantify the benefits of the Moss cool air intake.

[@cliffmorgan3071]

I’m sure this new Moss cool air intake helps to some degree but the MGA was manufactured with a cool air system from the factory. Those “circular things” you refer to that you ran your air hose through for your system were designed by the factory to have 4 inch flexible air ducting tubes on both sides of the car to provide fresh cool air. One ran from the grill to the carburetors and one on the other side of the car ran from the grill to the heater box. So these two air tubes would provide fresh cool air to both the carburetors and the heater. You have to keep these factory tubes in place and in good shape for them to work correctly which isn’t a problem at all if the owner just pays attention. On my MGA I run a Moss provided MSX cross flow aluminum head. This solves some heat producing issues for my car. First the carburetors are no longer right above the exhaust manifold which produces a lot of heat for the carburetors even with the heat shield and your cool air system. The carburetors on my car are on the passenger side of the car with the exhaust manifold on the driver side. That by itself keeps the carburetor temperature lower and I keep the factory produced cool air system in place and in great working order. Secondly the aluminum MSX head dissipates heat faster and better than the original cast iron head. The MSX crossflow head has been on my car since 2004. It has performed fantastically and provides great performance for the street. Why don’t you run a test on your MGA with the factory cool air system properly installed and see if the Moss system you have installed really gives you any real benefits over the factory system?

[@yolandaAlimbau]

I have drastically reduced the engine temperature and engine bay heat on my MGA from running in the 90s fahrenheit which gave unbearable heat soak cockpit temperature to running in the 70s. This is what I did. 1)Replaced the rubber foam on the underside of the bonnet that squeezes onto the top of the radiator, therefore forcing more air to go through the radiator than over the top of it.This part is usually never replaced after restoration. 2)I fitted a radiator shroud around the fan again forcing more air to be dragged by the fan through the radiator. These parts are easily found at MG suppliers. 3)I had the exhaust manifold ceramic coated. Suppliers state this can reduce under bonnet temperature by 30%. 4) The MGA twin cam had under bonnet louvred panels to aid cooling and access to the engine. I had these fabricated and installed to vent out the under bonnet heat. These 4 things changed my car I hope it works for you too

[@walterholmes4609]

Thank you for the time and expense you put into this helpful video.

[@dinom8450]

Excellent work and excellent instructions…well done..I have completed this on my MGA here in Australia.

[@mgatwentyfirstcentury4235]

Very Interesting, thank you for posting. I have always fitted cold air intakes to get the air as far away as possible from heat sources but never had data to gauge the effectiveness. My MGA has a 1.8 Miata twin cam and I routed the cold air intake forward like you but then down, ending up underneath the radiator. I then created a second air intake in the front valance.

[@chrisd5067]

Looks like the hose running up front might block air flow to the radiator. Is this an issue with this set up?

[@classicautodoctor5484]

Chris - that's a great question. My experience at elevated ambient temperatures here in Southern California with this setup shows that the relatively minor obstruction of the air flow into the radiator does not a have a significant impact on cooling capacity. Also this minor obstruction is offset by the cooler air entering the engine - hence reducing the cooling load due to heat transfer in the block and head. Thanks for the question.

[@RobertdeVries-trimaran-sailing]

Mga1600 owner since 2002: I installed heat resistant ducting coming from front leading cooler air to std air filters since I have car. Exiting just in front of filters Helps a bit. Maybe I bent an aluminium box around 2 filters to improve functionality. Huge improve in heat reduction is glassband wrapping total exhaust system, double at manifolds till just under engine. (Like on race cars and motorcycles) You double clap non pressurized ducts, 😂nice, but no double clamps on cooling fluid hoses? I ‘d doubled those instead….😊