A 20 Minute Meziere Electrical Water Pump Improve & 2007-10 Cooling System Swap

A 20 Minute Meziere Electrical Water Pump Improve & 2007-10 Cooling System Swap


This Mustang is SpecFab Racing’s championship profitable check mattress for race merchandise. (Picture/Christopher Campbell)

Everybody loves simple energy performs, particularly those that supply noticeable returns for little effort and funding. The fitting tips may even make extra energy to wheels with out truly the engine truly making extra energy. The hot button is decreasing parasitic losses.

By decreasing the parasitic losses on the engine, extra of the ability that it’s already making will get to the wheels. Our mission automotive for this miniseries of articles is a 2005 Mustang GT that’s principally used for time assault and excessive efficiency driving occasions (HPDE). Nonetheless, it’s additionally a avenue automotive registered in California, so it wants to remain emissions authorized—principally as a result of we wish to drive it to and from the monitor. Compelled induction and the burden and elevated warmth it brings are out of the query. Meaning we’re fairly restricted on our energy rising choices, so it’s time search for the gremlins consuming the ability we have already got.

Something the engine turns prices horsepower. Whereas working round on the road at decrease RPM, these stolen numbers are often fairly modest, that means that you could be not discover these losses at low RPM. Nonetheless, the quicker the engine spins, equivalent to when it’s working on a highway course or drag strip, the extra horsepower every part requires. That is when single digit energy losses flip into double digit losses. With that in thoughts, whereas trying on the entrance of the engine we’re introduced with a couple of choices. We’re going to start out by going straight for the apparent—the water pump.

We all know what you’re pondering, “electrical water pump on a monitor automotive?” Sure, hear us out on this one. Meziere’s WP346 excessive movement pump for modular Ford engines is designed for avenue or drag strip use and is rated for a continuing 55 gallons per min (GPM) free movement. For reference, most mechanical water pumps for V8 engine functions movement within the neighborhood of eight gallons per minute at idle, and round 70 gallons per minute at 6,500 rpm. That trade-off prices about 12 horsepower to the wheels.

At idle and low rpm, like cease and go site visitors, the Meziere pump will usually movement two to 3 instances as a lot as a mechanical pump. Nonetheless, as soon as the engine rpm exceeds 3,000, the pendulum swings in favor of mechanical pumps. Above 6,500 rpm, there’s actually no contest in the case of most movement. However the query is, “do you really want that degree of movement?” We predict not for our naturally aspirated mission.

To examine our thought course of, we reached out to Meziere. They advised us they noticed no potential points with a wholesome or upgraded cooling system on avenue pushed monitor day automotive working restricted periods. They did add that they might not suggest this water pump for prolonged excessive RPM endurance type racing, but it surely ought to be greater than enough for our flat-out 20 minute monitor periods.

However you don’t should consider us and even Meziere; our buddy Sal Molinare of SpecFab Racing has confirmed that it could possibly work for years together with his trusty Frankenstang.

Sal ran the identical Meziere pump in Frankenstang throughout its evolution from day by day driver, to tug automotive, after which championship profitable highway race automotive for over 9 years. By every of these variations, the stroked 3V was twin screw supercharged and making close to 700 hp to the wheels. Sal swears he by no means skilled a failure and even fought overheating points. He lately swapped to a Coyote engine and put a Meziere pump on it as nicely. Plus, as Sal mentioned, “When you think about what another mods price to develop 12 horsepower, it’s actually not what I’d name costly.” We had been offered on this experiment after chatting with him.

Oh yeah, yet another factor about this mission. Ford modular engines have a secret that makes an electrical water pump a brilliant simple improve; you’ll be able to swap one on in about 20 minutes, so it’s not even an enormous time dedication in case your wants change and also you resolve to swap again to a mechanical pump. And also you don’t even have to empty the coolant. It’s true, we did it. We additionally took our mission one step additional and upgraded to the 2007-10 type cooling system for the perfect outcomes. Learn on and we’ll present you ways.

Components for This Swap:

In addition to the additional horsepower bonus, the Meziere pump doesn’t range movement with engine rpm, which additionally signifies that it gained’t cavitate at increased rpm or movement too little at decrease rpm. Only a fixed 55 GPM on a regular basis. (Picture/Christopher Campbell)
Meziere’s pumps use 200 watt motors that, at full load at 12 volts, can run as much as 16.6 amps. Meziere says the everyday noticed load is extra within the vary of 9 amps for his or her commonplace pumps and 12 amps for the high-flowing variations. (Picture/Christopher Campbell)
There isn’t a lot disassembly crucial to start out this mission, however you will want to take away the air consumption tube from the throttle physique. Our mission has a no-tune-required 50-State Okay&N FIPK chilly air package that makes the removing somewhat simpler. (Picture/Christopher Campbell)
It is a fast set up, so in case you have the same type chilly air package, you might discover that every one you actually need to do is take the tube free from the throttle physique after which rotate it out of your approach. This may present fill entry to the serpentine belt and water pump. (Picture/Christopher Campbell)
Earlier than eradicating the serpentine belt, it’s a good suggestion to make use of the belt friction on the pulley to interrupt the bolts free. When you have an influence or cordless ratchet that’s the quickest route. If not, two ratchets (or wrenches) opposing one another will work. (Picture/Christopher Campbell)
As soon as the water pump pulley bolts are free, use a 1/2 inch drive ratchet or torque wrench inserted into the tensioner arm to rotate it to create sufficient slack within the serpentine belt to slip it off. (Picture/Christopher Campbell)
Consider it or not, we’re already to the step the place have to prep the Meziere pump for set up! Modular Ford engines use an O-ring to seal to the block, so the one actual preparation is to use a little bit of lube in order that it slides into place with out kinking. We used a really gentle smear of Tremendous Lube artificial grease. (Picture/Christopher Campbell)
Our present Edelbrock Victor water pump has by no means allow us to down, so we’ll be saving it in case we have to return to a mechanical pump. There’s truly no actual trick to the removing right here. When you take away the 4 bolts, seize the pump snout and wiggle it a couple of instances to loosen the O-ring from the seated place. Have the Meziere pump sitting close by for the short swap and if you’re prepared, simply give the mechanical pump a fast yank, it ought to slide proper out. (Picture/Christopher Campbell)
You’ll get an preliminary splash, plus a small quantity of coolant flowing out when you squeeze within the electrical pump, however all in you shouldn’t lose greater than a few pints of coolant earlier than the Meziere pump blocks the movement with its O-ring. Right here was the quantity of coolant spilled throughout our fast swap. We thought of making a video, however we figured 5 seconds of coolant spilling wasn’t that fascinating. (Picture/Christopher Campbell)
With the Meziere pump in place, rotate the housing by hand if the bolt holes don’t line up. The pulley isn’t detachable, so Allen head bolts are included within the package. With a ball-tipped Allen wrench, it’s simple to drive them in regardless of the angle required. Properly, three of them. That backside bolt might be probably the most annoying a part of the set up. As soon as it’s comfortable, you’ll be able to slide the serpentine belt over the Meziere pump loafer pulley. (Picture/Christopher Campbell)
The Meziere pump solely requires two wires to operate, however to securely combine it right into a inventory electrical system we suggest their wiring package that clips into the Meziere pump’s climate tight plug. (Picture/Christopher Campbell)
There are a lot of acceptable methods to wire the Meziere pump, together with on a handbook swap. The best and extra built-in approach we’ve discovered is to make use of the manufacturing unit fuse field, which is situated conveniently near the water pump. (Picture/Christopher Campbell)
Quite than faucet into any wires, we’re going to make use of a Bussman “add-a-circuit” to get our 12 volt ignition set off that may shut the relay. This lets us faucet right into a switched 12 volt supply with out slicing a wire. (Picture/Bussman)
The 2 finest choices are circuits 40 and 42, that are coded as Engine 2 and Engine 3, respectively. Fuse 42 is stay when the secret is on, fuse 40 is stay solely when the engine is working. We went with 40, select what you like. (Picture/Christopher Campbell)
Right here’s the structure of the wiring you want. Battery energy for the relay is tapped on the principal energy stud for the fuse field, and 12 volt switched comes from our add-a-circuit on fuse #42. The blue wire runs again to the Meziere pump, and the black is floor. We selected to mount our relay utilizing a manufacturing unit gap within the sheetmetal subsequent to the fuse field. We’ll wrap these wires with braid to scrub every part up. (Picture/Christopher Campbell)
The primary floor supply for the battery is simply behind the fuse field on the passenger aspect strut tower. We added the relay floor and the bottom from the Meziere pump to this location. (Picture/Christopher Campbell)
When you have a 2007-10 Mustang GT, clip within the 20 amp fuses since you’re finished! When you have a 2005-06 GT like ours, this swap nonetheless works, however there may be an extra suggestion for peak cooling: swap to the 2007-10 type coolant crossover and hoses. We’re going to do this with part two of our mission. (Picture/Christopher Campbell)
Right here’s the odd mess that’s the distant thermostat housing on 2005-06 Mustangs. It really works wonderful for gentle automobiles however can current issues for extremely modified automobiles that construct warmth rapidly. It’s additionally in the best way of most compelled induction programs. The 2007-10 model is tremendously simplified and was commonplace on the FR500 manufacturing unit race automobiles. (Picture/Christopher Campbell)
To swap to the later cooling system type, the consumption manifold should come off. Fortunately, 4.6 3V engines have a light-weight dry consumption that pops off with solely 10 bolts. (Picture/Christopher Campbell)
With the consumption and the higher alternator bracket eliminated, you may get a transparent have a look at the 2005-06 Mustang coolant crossover. This type has an outlet on the motive force and passenger aspect. The passenger goes to the highest of the radiator, the motive force aspect goes to the distant thermostat housing. Additionally notice the heater core hose within the valley. This connects to a port on the underside of the coolant crossover in a Mustang. (Picture/Christopher Campbell)
That is the thermostat housing for 2007-10 4.6 3V engines. Properly, it’s not less than one of many choices. The important thing factor to notice right here is there is just one radiator outlet on the motive force aspect and the thermostat is housed on the crossover pipe itself. Sadly, these are lengthy out of date from Ford and will not be reproduced anyplace. (Picture/Christopher Campbell)
Our coolant crossover is definitely not for a Mustang; these might be costly and pretty laborious to search out. Ours is probably going from an F150 and is less expensive and simpler to search out. We discovered ours on-line, the Ford half quantity is 7R3E-8C369. This model doesn’t have the heater hose outlet within the engine valley, and as an alternative exits towards the passenger aspect. If yow will discover the Mustang model for a very good value, seize it, however we’ll present you learn how to make this model work. (Picture/Christopher Campbell)
Because of the wonderful people at our native auto elements retailer for permitting us to face within the again and check pre-molded heater hoses for half-hour, we discovered Gates half quantity 19203. We don’t know what the unique software is, but it surely’ll work nice for our swap. (Picture/Christopher Campbell)
We minimize off the primary 1.5 inch of the hose and voilà! It slides on the heater hose outlet then curves round and simply tucks by means of the hole between the pinnacle and alternator. We added a brief piece of corrugated hose masking for abrasion safety. This hose will hook up with the heater hose within the valley. (Picture/Christopher Campbell)
The second most difficult factor about eradicating the unique radiator hoses are these manufacturing unit clips, assuming you don’t have the correct pliers. This may be a good time to improve them, however they may work simply wonderful for the swap. The hose itself could also be somewhat caught on the radiator, however a agency twist ought to break it free. (Picture/Christopher Campbell)
That is probably the most difficult, in our opinion, the decrease radiator hose on the engine. It’s in a cramped spot and ours required slicing it off the outlet to eliminated due to hundreds of warmth cycles virtually bonding the rubber to the steel. (Picture/Christopher Campbell)
That is the Mishimoto silicon hose package for 2007-10 Mustangs that we’ll be utilizing to replace our coolant hose routing. Not solely do these hoses have a pleasant, clear look to them, among the finest issues about silicon is that it gained’t persist with steel just like the rubber hoses. (Picture/Christopher Campbell)
For higher perspective of this swap, right here’s the 2005-06 type Mustang hoses and distant thermostat housing subsequent to the 2007-10 Mustang Mishimoto hose package. The distant thermostat and the 4 hoses coming off it are changed by the Mishimoto decrease hose that function one offshoot that goes as much as the degas bottle. (Picture/Christopher Campbell)
Our thermostat of selection for our avenue authorized monitor mission is the Mishimoto 160 diploma. Let’s clear up one frequent false impression instantly; a decrease temp thermostat will NOT assist your automotive run cooler in case you are reaching the thermal capability of your cooling system. That’s principally ruled by the water pump and the power of the radiator and fan to switch warmth. Nonetheless, in case you are nicely under thermal capability, it would enable the automotive the run cooler. Opening at a decrease temperature may even get the water flowing faster, which ought to lead to extra run time on monitor earlier than any working into doable cooling points. (Picture/Christopher Campbell)
To clear the thermostat housing, the 2005-06 type higher alternator mount requires the outer mounting gap on the motive force aspect to be minimize off and a brand new one drilled to match the brand new mounting location (purple arrow). When you have a Mustang coolant crossover, that ought to be all that’s required. When you have one like ours, you’ll additionally have to faucet the clean boss on the passenger aspect. We’ll take care of it later. (Picture/Christopher Campbell)
That is how the finished swap seems to be with the 2007-10 Mustang Mishimoto hoses, our customized heater hose, and the trimmed higher alternator bracket. Discover how way more open room there may be in entrance of the engine with out the distant thermostat. (Picture/Christopher Campbell)
And right here we’re all buttoned again up! You’d should be an actual mod motor guru to note our cooling upgrades aren’t authentic gear.  We haven’t had our mission on monitor but, however we will report that after refilling the radiator our coolant temps dropped by 20 levels from 195 to 175 whereas testing round city with the A/C on. We’ll replace this text when we’ve monitor day knowledge. (Picture/Christopher Campbell)

Christopher Campbell has been closely concerned within the automotive world since he started constructing his first automotive, a 1967 Ford Ranchero, together with his dad on the age of 14. That began a lifelong ardour with customized scorching rods and muscle automobiles. After graduating from Cal State Lengthy Seaside, he went to work for HOT ROD journal as Affiliate Editor. From there he turned Technical Editor at Well-liked Scorching Rodding journal. At the moment he creates freelance content material for OnAllCylinders in addition to many various fanatic journal titles equivalent to HOT ROD, Muscle Mustangs and Quick Fords, Mopar Muscle, Tremendous Chevy, Mustang Month-to-month, and 8-Lug.


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September 2022