Good-Win Racing Mazda Performance Parts

Qmax Coolant Reroute

1990-2005

NEW

Miata 1990-2005 · Radiators-Cooling · Radiator


Part Number: 61-2161

Application: 1990-2005

Price: $249.00

Quantity:

Qmax Coolant Reroute
rating (0 Ratings)
rating (0 Ratings)

Thank you. You have rated this product.

Qmax Coolant Reroute

The Qmax coolant reroute is a must have for any Miata experiencing cooling issues.

Why reroute?
The B series engine in the Miata was designed for a fwd car. As with all inline 4 cyl engines, coolant entered one one end of the head and exited the other end in the fwd application. This simple path is the most efficient way to extract heat from the head. Mazda turned the engine 90 and tucked it up against the firewall in the Miata. This meant moving the coolant exit to the front, the same end of the head as the inlet. This poor flow path is the primary cause for overheating which is so common in the 90-05 MX5. The 949 Racincg Qmax reroute has a carefully engineered low profile adapter for the back of the head to retain the original front to back coolant path. Just this one modification will significantly reduce coolant temps. Even a bone stock Miata will run a bit hot, and the stock ECU will reduce ignition timing which hurts power and fuel economy.

The Qmax Reroute Features

  • Internally machined to maximize coolant velocity which is key to improving cooling efficiency.
  • Retain the use of your EGR pipe for emissions or CEL.
  • The OEM coolant temp sensor location is retained so the wiring harness does not need to be modified.
  • Spare 1/8 NPT ports are provided for aftermarket coolant temp or coolant pressure sensors.
  • All important hardware is stainless steel to increase service life.
  • High flow Stant Superstat is utilized to increase coolant velocity.
  • Simple sealed adapter housing elminates gaskets and finicky, leak prone threaded fittings.
  • Convenient bleed port allows system bleeding with car level if you have COPS ignition.
  • No remote thermostat housing for easy fitment and improved reliability.


To learn more about your 90-05 Miata cooling system and how to improve efficieny, visit this forum article 949 Racing wrote: andnbsp;https://www.miataturbo.net/race-prep-75/miata-cooling-system-thread-79930/

Installation takes the average mechanic a few hours with common hand tools.andnbsp;

Specialty Tools required:

  • Internal snap ring pliers, like these:andnbsp;https://www.harborfreight.com/snap-ring-pliers-with-interchangeable-heads-60531.html
  • Metric allen keys
*** Product images may differ from actual product appearance ***

REVIEWS

As you can see, i placed another order for more parts for my car. I wanted you to know that I'm pleased at how quickly the wheels/tires came, and the radiator too. Great service and response time.

-- Jeff D.

Brian, just wanted tyou to know you've got another highly satisfied customer. I got my RoadstersportIII muffler on Friday, installed it in 20 minutes, looks and sounds awesome. I like the baffles out!! My new tires/wheels came Saturday, just got them on and test drove them. Fantastic!! And how they look--- just what I was after. I will add the front "mud flap" that looks like the rear one, for some stone protection, but the offset was just what I was working for. I'd love to send you some pictures for your photo gallery. If you'll send an adress via e-mail, I'll send some high-res photos showing clearances and side profiles, etc. The graphite spokes and polished rims really set well on my black car. Thanks again, me and my wallet will be back!!

-- Ken