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A Call To Action By The Spec Miata Community- The Petition

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Best Answer Brandon , 11-13-2014 10:09 AM

Thank you for the correction!

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#121
Bench Racer

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Whether there was any cheating or not, whether there was just deburring or not, I have NO IDEA as the results have NOT been made public.

 A simple reminder from the summit team letter.

It needs to be stated that the heads examined at the Runoffs were modified on varying levels, but each head found out of compliance was in violation of the rules as they are written.

 

Additionally, this is not simply an issue with de-burring, but rather actual smoothing, blending and porting on the sharp edge from the plunge cut.

 

My letters have been sent.


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#122
Pete Maerz

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Pete, reasonable people can agree to disagree, not hold it personal and go have a beer afterwords IMO.

 

Frank,

Agreed. That's why we call it a club!


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#123
tony senese

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The dimension of 1/4 inch is from the end of the ferrous metal, or to say another way, from where the casting starts.... NOT the top of the valve seat.  


Phew...... that was a close one!

Tony Senese
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#124
tony senese

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intake diagram

Phew...... that was a close one!

Tony Senese
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#125
Brandon

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✓  Best Answer

Thank you for the correction!


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#126
tony senese

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By the way, that drawing isn't quite to scale, Miata intake valves are 33mm across, so the 6.4 mm should be about 20% of the width of the valve in that picture, As shown it is about 30% or 11mm. (not my drawing)


Phew...... that was a close one!

Tony Senese
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#127
Brandon

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Someone sitting in the home office with valves & a caliper on their desk?!

 

:D


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#128
tony senese

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LOL, home office yes, valves and caliper in the garage however.... my wife does not like grease in the house!!!


Phew...... that was a close one!

Tony Senese
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#129
Parity

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Please don't suggest .250" is de-burring. It's porting plain and simple.


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#130
Parity

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BTW - Tony Senese will be doing tear downs for tech at all NASA NE events. He's used to rebuilding cars in the paddock in time to race.


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#131
tony senese

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Please don't suggest .250" is de-burring. It's porting plain and simple.

EXACTLY!!!!  I may have been born in the morning..... but not THIS morning!!!!


Phew...... that was a close one!

Tony Senese
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#132
chris haldeman

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Drawing needs too show the straight down plunge cut on short side. This cut 90* too guide area measures between .100-.150 in the center of the short side it grows in length away from center towards where the short side becomes the long side. Long side then increases too a max of 12mm. Rw8000 posted some pics. It needs too be clear maintaining that length is very important too flow and would never be removed or flattened. Original number on the drawing was too allow
.150 but needed too increase because of casting variations.
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#133
chris haldeman

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By no means is the number the total amount of debur. There needed too be A number that included all castings.
X-factorracing.com
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Donor - Made PayPal donation Bona fide - A bonafide Spec Miata driver BFG Supertour Winner - Circuit of the Americas Winner - Majors Winner - Make it Rain - Made Paypal donation of $100+ We have a Winnah! - Won their 1st race... Congratulations!

#134
Johnny D

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You guys make it sound like it either the stock head or the petition, it's not.

 

I hope the letters going out are what you think it should be, not just pick one of these ^^.

J~


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We have a Winnah! - Won their 1st race... Congratulations! Beta-Tester - Assisted us with beta testing the website. Donor - Made PayPal donation Bona fide - A bonafide Spec Miata driver Novel Approach - When a paragraph simply won't do... Survive the 25, NASA Thunderhill - Survive the 25, NASA Thunderhill Make it Rain - Made Paypal donation of $100+

#135
Ron Alan

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EXACTLY!!!!  I may have been born in the morning..... but not THIS morning!!!!

Tony...you were in Sonoma tech? I did not put 2 and 2 together if you are the same guy that joked with Mike and I(old guys) about coming form behind and passing the young guys on getting everything off the car??

 

I'm going to try and take pictures of my valves as you saw them and post up. I think I can get a picture of a "blended"head to compare.


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Ron

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#136
tony senese

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Yes Ron, that's me!


Phew...... that was a close one!

Tony Senese
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#137
Johnny D

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Yes Ron, that's me!

:wave2:

J~


2011 NASA Western Endurance Racing Championship E3 Champ
We have a Winnah! - Won their 1st race... Congratulations! Beta-Tester - Assisted us with beta testing the website. Donor - Made PayPal donation Bona fide - A bonafide Spec Miata driver Novel Approach - When a paragraph simply won't do... Survive the 25, NASA Thunderhill - Survive the 25, NASA Thunderhill Make it Rain - Made Paypal donation of $100+

#138
tony senese

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Chris, that is the picture from the proposal/petition, The 99 and up heads are different and this pic doesn't show that, but what you are saying is essentially correct.  BUT, when mazda installed and machined the valve seat, they already centered the hole over the v opening for the valve stem.... the concept that the plunge cut is to make up for differences in the castings is pretty funny to me.....

 

What are we actually "making up" for.....  differences in flow due to differences in the casting and machining process at Mazda.... THOSE DIFFERENCES ARE MINOR compared to the differences we have created with this tortured interpretation of the rule.

 

Stock heads are definitely not all the same..... but they are not as different as this proposed rule will make them!!!!


Phew...... that was a close one!

Tony Senese
NASA-NE SM Director
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NASA-NE SM champ

Bona fide - A bonafide Spec Miata driver

#139
chris haldeman

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Jonny gets it!! Stock will be terrible for all.
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3 podium finishes
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1 2013 Scca runoffs
Donor - Made PayPal donation Bona fide - A bonafide Spec Miata driver BFG Supertour Winner - Circuit of the Americas Winner - Majors Winner - Make it Rain - Made Paypal donation of $100+ We have a Winnah! - Won their 1st race... Congratulations!

#140
Ron Alan

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Yes Ron, that's me!

Very cool...always like to put a face and a personality with what gets posted up here! Its amazing how different you look at what is written when you know who it is. Until this weekend i had only met/listened to John Mueller one time before...in a conversation with another driver and he was grumpy and bitching! Now that I have seen the whole package after many personal and group conversations last weekend...it all makes sense now. A joker at heart and very approachable,,,but absolutely committed to trying to find a solution that affects the fewest. Also gets the fact of how we got here and has no interest in letting the ship sink...as none of us do!


Ron

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2015 NASA 25HR E3 Champion(Car owner)

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Donor - Made PayPal donation Bona fide - A bonafide Spec Miata driver




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