I remove the ac and dash to make it more of a race car and less of a street car. This piece bypasses the oem ac evaporator box so that you can retain your heater core and blower motor to have functional heat and window defrost.
Deleting Miata Heater Core
Miata heater core delete. Heater core in drivers footwell right side near accelerator. Easy miata heater core install without dash pull. Both tubes can be pulled out from the footwell. Removing the old core. Now pull the heater core until it gets stuck. This kit allows you to delete the heater hoses running from the engine block and cylinder head to the heater core behind your dashboard.
With a combination of pulling towards yourself pushing up and grunting you can get it out. With my cage design the defroster vents are still usable so i allways leave the heater core in the car. 23790205 brand new ac delete tube from mazda. The aluminum cores on the nb are nice but come with a really annoying v band style clamp for the pipes really a pain to work with. 90 05 miata ac delete tube evaporator heater core sku. In the miata you can do that if youd like to but it isnt necessary.
Getting it out without pulling the dash was not near as hard as we thought it would be. In a lot of cars this job is a massive pain because getting to the heater core requires disassembling the dash. Instead i use a pre owned core with a. If you have a k20a2 or k20z1 style head order with the head plug pictured. Just use the 12 npt plug that comes with our k24 upper water neck. The whole job was 40.
How to replace a miata heater core the easy way. As mentioned it is not allowed to remove the heater core. The miata project continues. If using a k24a2 style head the head plug is not needed. Next get your finger in the hole and pull the heater core out a little bit so you can take off the outlet pipe. It may be bypassed but not removed.
Plus a trip to the moon. Untill it leaks and then i bypass it.
Gallery of Miata Heater Core Delete
