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Author Topic: Upper Radiator seal
Edens Verified Driver
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Car #: 26
Year : 1993
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I know you can use the one from the 1.8 car in the 1.6, the quesrtion is do you have to buy one from Mazda or can you just build you own out of sheet aluminum or plastic??

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Casey Z Verified Driver Made Donation to Website
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Do you mean the shrouding between the bumper and the radiator up top? If so the answer is yes. I have heard tale of bud light boxes being used. I built mine from aluminum.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

Edens Verified Driver
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Cool, thats what i thought I just wanted to make sure before I went through the time of building one.

Thanks Dude.

Casey Z Verified Driver Made Donation to Website
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No problem, see you next week.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

Edens Verified Driver
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Where are you guys gonna pit for the race this weekend? We will be over Friday aftre noon sometime.

Casey Z Verified Driver Made Donation to Website
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PM sent.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

Viking Verified Driver Made Donation to Website
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It would be a really weenie protest but the rules state .......

"c. All cars may install the Upper Radiator Seal, p/n NA75-50-OK7A"

Which means the Bud Light is non compliant, sorry.

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Viking Sjovall
Viking Motorsports

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Hmm, if we are talking about the same part or fitment I think this comes into play:

2. Cooling System
a. Any radiator may be used, provided it is mounted in the original location, maintains the same plane as the original core and requires no body or structure modifications to install. Any openings created by fitting an alternate radiator shall be blocked to prevent air from entering the engine compartment. The stock cooling fan(s) must be maintained. At least one functional stock OEM cooling fan must be mounted in one of the stock locations.

If so, you may choose bud light or regular grade. This rule would supercede. Opinions?

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

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quote:
Originally posted by Casey Zandbergen:
Hmm, if we are talking about the same part or fitment I think this comes into play:

2. Cooling System
a. Any radiator may be used, provided it is mounted in the original location, maintains the same plane as the original core and requires no body or structure modifications to install. Any openings created by fitting an alternate radiator shall be blocked to prevent air from entering the engine compartment. The stock cooling fan(s) must be maintained. At least one functional stock OEM cooling fan must be mounted in one of the stock locations.

If so, you may choose bud light or regular grade. This rule would supercede. Opinions?

I understand this radiator part of the rule that you quote to be the area between the core support rearward to the radiator, and sides around the radiator, not the panel that comes on the 1.8's and is in front of the core support. That area would not change regardless of what radiator you installed. Thats why the other rule is written into place. And actually the panel does have some small openings so a well cut Bud light box could do a better job and offer a VERY slight advantage (atleast in theory) so a postest would probably work against the bud light box, weenie as it would be.

Don't look at me to protest you though. [thumbsup]

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Viking Sjovall
Viking Motorsports

Casey Z Verified Driver Made Donation to Website
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Agreed, it could be argued, but as long as you aren't trying to add air flow to the filter, just trying to keep air in the radiator it is weenie and unlikely.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

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Besides, it's a very cheap panel to insure you comply with the rules.

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Viking Sjovall
Viking Motorsports

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quote:
Originally posted by Casey Zandbergen:
Agreed, it could be argued, but as long as you aren't trying to add air flow to the filter, just trying to keep air in the radiator it is weenie and unlikely.

100% Agree with you !

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Viking Sjovall
Viking Motorsports

Viking Verified Driver Made Donation to Website
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quote:
Originally posted by Casey Zandbergen:
Agreed, it could be argued, but as long as you aren't trying to add air flow to the filter, just trying to keep air in the radiator it is weenie and unlikely.

You know, it might actually add more airflow by NOT having it in place although then it will allow the car to run a little hotter also.
Without it in place some of the air will flow above and over vs thru the radiator allowing a higher under hood pressure AND a slightly cooler air intake air temp. Will this amount to a noticable difference ???
In Texas, I will go with the more air thru radiator and cooler car.

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Viking Sjovall
Viking Motorsports

Casey Z Verified Driver Made Donation to Website
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We tape EVERYTHING up for our summer races. We have to to keep the car cool. There is no performance intent or advantage other than keeping the motor alive.

112 ambient on the grid makes you look at things differently. Pretty sure you guys have the same issue.

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Z Brothers Racing / East Street Auto

Casey Z - 1.6 Kettle
MidDiv National #13

Viking Verified Driver Made Donation to Website
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I understand about the heat all too well. I'm the guy that would like an oil cooler spec'd for us ! Which would help reliabilty and add a few hp, or atleast keep the few we have when it gets hot.


Just remember,if the rules don't say you can ..................

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Viking Sjovall
Viking Motorsports

Mark McCallister Verified Driver Made Donation to Website
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I had wondered when I bought the $5 seal, is it OK to tape up all the gaps it leaves, as a way of securely attaching the seal? It obviously doesn't fit exactly in there anyway on my '91.

Viking Verified Driver Made Donation to Website
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quote:
Originally posted by Mark McCallister:
I had wondered when I bought the $5 seal, is it OK to tape up all the gaps it leaves, as a way of securely attaching the seal? It obviously doesn't fit exactly in there anyway on my '91.

Look at the parts catelog for what holds it down, or look at a 1.8 liter car, I used screws, no tape, no problems.

JD Morris Verified Driver Made Donation to Website
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Not to beat a dead horse or anything, but the rule says :

quote:
Any openings created by fitting an alternate radiator shall be blocked to prevent air from entering the engine compartment.
Therefore, if there was an opening with a stock radiator and you put in an 'alternate radiator' that had the same opening as before, you have not 'created' another new 'opening' that the rules allow to be 'blocked'. Note that if you did create a new opening, it must (shall) be blocked, not can or may be blocked.

The rule reads like most band aid additions, in this case to prevent using a space next to the radiator for cold air intake ducting.

Dusty Bottoms Verified Driver Made Donation to Website
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Except this cover has nothing to do with which radiator you're using...it's completely separate from the radiator rule.

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"Your victory is tainted! Asterisk! Asterisk!!!"--Lisa Simpson

JD Morris Verified Driver Made Donation to Website
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quote:
Originally posted by Antonio Garza:
Except this cover has nothing to do with which radiator you're using...it's completely separate from the radiator rule.

Exactly.

Brian Benthin Verified Driver
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Year : 1990
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Bringing this one back.
The part number listed above (NA75-50-OK7A) isn't bringing back any results on the Mazda Motorsports site. Is it still valid, or do I just need to call them?

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Brian

CP Verified Driver
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First one to send me a reasonable offer gets the new one I've got. I didn't realize it was NA only when I ordered it last month (duh).

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-Cy
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Brian Benthin Verified Driver
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PM sent.

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Brian

Dusty Bottoms Verified Driver Made Donation to Website
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quote:
Originally posted by Brian Benthin:
Bringing this one back.
The part number listed above (NA75-50-OK7A) isn't bringing back any results on the Mazda Motorsports site. Is it still valid, or do I just need to call them?

NA75-50-0K7A (zero not O)

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"Your victory is tainted! Asterisk! Asterisk!!!"--Lisa Simpson

Brian Benthin Verified Driver
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How are these mounted on the 1.6 cars. The mounting holes don't seem to line up, do I need to drill? Also it seems like it wants to be underneath the black sheet metal bumper/nose mount that screws to the radiator support area.

Anyone have a pic?

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Brian

Greg Bush Verified Driver
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I'll try to get a pic of mine today or tomorrow.

I slid mine under the part you mention, though I don't know if others do the same.

No drilling required.

Mike C Verified Driver Made Donation to Website
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You MAY NOT build your own! Use the stock part or none at all. Yes it is a weenie protest but those are the rules. Spend the $7.50.

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Mike Collins
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ALL OPINIONS ON RULES OR SPECIFICATIONS ARE JUST THAT, MY OPINIONS!

Brian Benthin Verified Driver
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Thanks Greg, I appreciate it!

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Brian

Jeff Wasilko
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quote:
Originally posted by Brian Benthin:
Bringing this one back.
The part number listed above (NA75-50-OK7A) isn't bringing back any results on the Mazda Motorsports site. Is it still valid, or do I just need to call them?

Perhaps the O should be a 0 ?

NA75-50-0K7A comes back as a 'bumper seal'. Is that it?

   

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