search | help | calendar | games | forum home » Hello Spec Miata Community » National Auto Sport Association » NASA Discussion » restrictor sizes for 09 not clear in SMC rules Email this page to someone! | Subscribe To Topic   Author Topic: restrictor sizes for 09 not clear in SMC rules amolaver Member Region: NASA MA Car #: 50 Year : '96 Posts: 318 Status: Offline posted            Can someone please explain what exactly section 12.1 means from the 09 Spec Miata Challenge rules (http://www.nasaproracing.com/rules.html) Not sure how to attach the jpg I grabbed of the problem, but if you go and look, you'll see a difference in wording vs number ('seven' vs '7') for the RP sizes. A quote: 1994 - 1995 1800cc engine powered vehicles must use a forty seven (45.0) millimeter throttle restrictor. 1996 - 1997 1800cc engine powered vehicles must use a forty five (45.0) millimeter throttle restrictor. 1999 - 2005 1800cc engine powered vehicles must use a forty one (43.0) millimeter throttle restrictor. -------------------- ahm - http://www.awesom-oracing.com 2009 NASA MA SM Champion Jason Holland Mediocrity rules! Region: SouthEast Car #: 28 Year : 95 Posts: 3756 Status: Offline posted            Typo... I'll take care of it. Jason -------------------- Jason Holland Semi-interested civilian Joe Benton Member Region: WDCR Car #: 37 Year : 1999 Posts: 121 Status: Offline posted         So Jason, does that mean a '99 goes from 41 to 43mm or is that another typo? -------------------- Joe Benton King Rat Motorsports PBC Automotive Jason Holland Mediocrity rules! Region: SouthEast Car #: 28 Year : 95 Posts: 3756 Status: Offline posted            Yeah, another typo. It should be same as SCCA. -------------------- Jason Holland Semi-interested civilian Jason Holland Mediocrity rules! Region: SouthEast Car #: 28 Year : 95 Posts: 3756 Status: Offline posted            I just made the changes. Just waiting to get it on the website. This is correct (or should be!) 12.1 Throttle Restrictor 1994 - 1995 1800cc engine powered vehicles must use a forty five(45.0) millimeter throttle restrictor. 1996 - 1997 1800cc engine powered vehicles must use a forty five (45.0) millimeter throttle restrictor. 1999 - 2000 1800cc engine powered vehicles must use a forty one (41.0) millimeter throttle restrictor. 2001 and up 1800cc engine powered vehicles must use a forty three (43.0) millimeter throttle restrictor. The throttle restrictor shall be placed between the throttle body and plenum. All intake air shall pass through the restrictor plate. Restrictor plates must be the proper size as listed in the Specification Table, must be from Mazdaspeed Motorsports Development or SCCA Enterprises, and must not be modified. Sorry for the confusion! Jason -------------------- Jason Holland Semi-interested civilian Drago MegaModerator Region: mid south Car #: 2 Year : 1999 Posts: 4275 Status: Offline posted            Jason Here is a picture of the new plates. I believe these are legal in NASA as well correct? You can order these on Monday from SCCA Enterprises -------------------- Jim Drago East Street Auto Salvage jdrago1@aol.com 2006-2007 Mid-West Division 07,09 June Sprints Champion EAST STREET RACING Jason Holland Mediocrity rules! Region: SouthEast Car #: 28 Year : 95 Posts: 3756 Status: Offline posted            typos should be fixed and yes these are legal for NASA. -------------------- Jason Holland Semi-interested civilian SamBarnett Veteran Member Region: NASA MA / SCCA CCR Car #: 6 Year : 1990 Posts: 600 Status: Offline posted            Mine won't fit in the hole. Do you have any larger sizes? :-b -------------------- Race Engineering - Championship Winning Engines Carbotech Performance Brakes CDOC amolaver Member Region: NASA MA Car #: 50 Year : '96 Posts: 318 Status: Offline posted            got my red beauty from the brown truck today -------------------- ahm - http://www.awesom-oracing.com 2009 NASA MA SM Champion Printer-friendly view of this topic | Subscribe To Topic Hop To: Select a Forum:   Category: SpecMiata.com -------------------- Spec Miata Spec Miata Garage Spec Miata Rules & Competition Spec Miata Competition Tires Spec Miata Safety Spec Miata Setup Guide Spec Miata Data Acquisition NASA PTE/E3 Spec Miata to FProd SMulators Spec Miata Frequently Asked Questions Showroom Spec Miata Pro Miata Spec Miata Enduro Spec Miata Virtual Swap Meet SMTV Back Fire Announcements   Category: Spec Miata Archives -------------------- Spec Miata 2001-2009 Garage 2002-2009   Category: Sports Car Club of America -------------------- SCCA North-East SCCA South-East SCCA Great Lakes SCCA Central SCCA Mid-West SCCA South-West SCCA Rocky Mountain SCCA North Pacific SCCA San Francisco Region SCCA South Pacific   Category: National Auto Sport Association -------------------- NASA Discussion NASA Northeast NASA Southeast NASA Central NASA Midwest NASA Northwest NASA Southwest   Category: Mid Western Council -------------------- MWC Discussion

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