What is this grill thing and do I need it?
#1
What is this grill thing and do I need it?
My FD has a knightsports V-mount and I'm looking at this stock grill opening.
There is a plastic grill support that constricts the grill opening. I know japanese engineers are smarter than me so I'm assuming they are there to create some sort of aerodynamic eddy to encourage airflow but now that I'm not stock do I need this or can I cut it away?
Also, does anybody know where I can get one of those little black tabs? I'm missing one.
thx.
There is a plastic grill support that constricts the grill opening. I know japanese engineers are smarter than me so I'm assuming they are there to create some sort of aerodynamic eddy to encourage airflow but now that I'm not stock do I need this or can I cut it away?
Also, does anybody know where I can get one of those little black tabs? I'm missing one.
thx.
#2
Tunning till I drop!
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I asked the same question about the black plastic half moons some time ago and found a considerable amount of debate about the topic.
After experimenting a bit I noticed better low speed (45 MPH) cooling with them off. I'm guessing that they were put in place to aid MPG on the highway and not cooling.
I've had them off for six months without any issues.
Ray and Malloy can get you the tabs.
After experimenting a bit I noticed better low speed (45 MPH) cooling with them off. I'm guessing that they were put in place to aid MPG on the highway and not cooling.
I've had them off for six months without any issues.
Ray and Malloy can get you the tabs.
#3
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I asked the same question about the black plastic half moons some time ago and found a considerable amount of debate about the topic.
After experimenting a bit I noticed better low speed (45 MPH) cooling with them off. I'm guessing that they were put in place to aid MPG on the highway and not cooling.
I've had them off for six months without any issues.
Ray and Malloy can get you the tabs.
After experimenting a bit I noticed better low speed (45 MPH) cooling with them off. I'm guessing that they were put in place to aid MPG on the highway and not cooling.
I've had them off for six months without any issues.
Ray and Malloy can get you the tabs.
I've been debating removing them from my car for better airflow. Currently my half moons just eat bugs on the highway.
#7
Eye In The Sky
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For best cooling they should be removed, but then you will also have to make some blocking plates for the sides and side bottoms where air will escape and not flow backwards to where you want it to go.
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#10
Wastegate John
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Looking a James Paventi's pics I wonder if it was just an aesthetic mod in order to cover up the ac lines and give the car a cleaner look. It may just be that simple. lol
#11
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I don't have a science background, but concerning air to the radiator, it seems like volumn and velocity should both be considered. Those side 'ears' probably serve the latter and may help get it through the condensor and/or over-come high-pressure in the engine bay. Anyone have any hard data comparisons with and without, and at different speeds?
#15
Tunning till I drop!
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I don't have a science background, but concerning air to the radiator, it seems like volumn and velocity should both be considered. Those side 'ears' probably serve the latter and may help get it through the condensor and/or over-come high-pressure in the engine bay. Anyone have any hard data comparisons with and without, and at different speeds?
One other thing to consider in the quest for better cooling. Check around the radiator edges (hood shut, A/C on, reaching in the front opening) with your fingers when the fans are running. I've found several spots where the fans blow hot air back out to the front and recirculate it. I've blocked all of this off to force hot air to exit out the back. This helps the temps stay around 210f when the A/C on, heavy traffic and a 105f outside temp. Before this I would approach 225f. Mods are in my sig link but the notable ones here are a Fluidyne radiator, FC thermoswitch and PFC set with fans to come on at 200f.
#18
Tunning till I drop!
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I think that there are three sizes:
small - fog lights
medium - non-fog single oil cooler
large - non-fog dual oil cooler
Has anyone noticed? I may have to put a check for this on the to-do list at SevenStock this September. It would at lease add evidence that there is an impact on cooling.
small - fog lights
medium - non-fog single oil cooler
large - non-fog dual oil cooler
Has anyone noticed? I may have to put a check for this on the to-do list at SevenStock this September. It would at lease add evidence that there is an impact on cooling.
#19
Recovering Miataholic
Didn't PEP/PEG models come with fog lights?
I still don't get this, I am confused. What exactly do they do?
#20
Eye In The Sky
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Too much credit is given to Mazda engineers as if they did everything 100% correct. They did a great job but not excellant with the FD. That is why today we can make 350-400 whp and the car is so much more reliable than it was stock with 225whp.
I don't have a science background, but concerning air to the radiator, it seems like volumn and velocity should both be considered. Those side 'ears' probably serve the latter and may help get it through the condensor and/or over-come high-pressure in the engine bay. Anyone have any hard data comparisons with and without, and at different speeds?
#21
Urban Combat Vet
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I don't see your point. They were dealing with CAFE/CARB and host of other restrictions while trying to make a profit on a high-performance and relatively low-production car that dealerships were going to have to service. MAZDA didn't produce this car as a hobby.
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