http://cdn.growasset....pdf?1447960817
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Recommended Items for 2016
SM
1. #17222 (Eric Matoy) 1.6 L SM Intake Air Temperature
Thank you for your request.
The CRB thanks the below authors for their feedback on this topic:
David Dewhurst (17432, 17593, and 17727), Dave Wheeler (17548 and 17690), Charles Singletary (17557), Michael Babcock
(17568), Jerry Rigoli (17571), Justin Casey (17596), Dennis Mathias (17689), Taylor Ferranti (17691), Tom Scheifler (17693),
Steve Scheifler (17693), Jim Morris (17694 and 17734), Jim Drago (17695), Will Schrader (17697), Gary Bockman( 17702),
Andrew Devoto (17706), Tom Fowler (17716), Callum Hay (17720), Charles Mathes (17722), Dennis Mathias (17728), Mark
McCallister (17729), Patrick McFall, Sr. (17736), Mike Higgins (17739), Alan Cross (17742), Manny Platis (17742), Richard
Powers (17751), Geoff Cochran (17787), Andrew Cremins (17948), Tom Fowler (17967).
In order to establish parity for the 1.6L engines, the CRB recommends:
Change 9.1.7.C.1.m.1:1. The exhaust manifold must be Mazda OEM, without any material added or removed. No coatings
are permitted on the exterior or interior of the manifold. Heat wraps may not be used. 1.6L (1990-1993): The exhaust manifold
internal factory welds may be ground from the interior of the OEM exhaust manifold up to 1†from the mounting surfaces of the
cylinder head and the collector. A bead of weld or braze may be added to the outside of the exhaust manifold inlet and outlet
mounting flanges for the purposes of repair only. No coatings are permitted on the exterior or interior of the manifold. Heat wraps
may not be used.
All other years: The exhaust manifold must be Mazda OEM, without any material added or removed. No coatings are permitted
on the exterior or interior of the manifold. Heat wraps may not be used.
Change 9.1.7.C.1.k.1.a.:a. 1.6L (1990-1993) cars may replace the stock air box with a cone
style air filter assembly. The air filter element is unrestricted. No ducting or baffling of air to the air filter is
permitted., however, the forward-facing driver’s side turn signal indicator may be removed. The stock plastic air tubes between
the AFM and the throttle body may be covered or wrapped.
2. #17569 (Cameron Conover) Allow Removal of EVAP Components
Add 9.1.7.C.1.l.2: 2. Fuel filler tube venting may be defeated (loop or block vent lines in trunk).
3. #17931 (Ralph Provitz) Shifter and Linkage to Be OE
Add 9.1.7.C.2.f.: f. Updating or backdating of transmissions (inclusive of shifters) from 90-05 is permitted; OE shifters must be
retained.
What Do You Think
SM
1. #17680 (Ralph Provitz) 1.6 to 1.8 Clone
The CRB is seeking member input on the proposal below. Please provide feedback on crbscca.com.
1. 1990-1993 cars with the 1.6L engine may be updated to 1994-1997 cars (the source vehicle) with the 1.8L engine, provided:
a. Cars updated in this manner shall be re-classified to the model year corresponding to the source vehicle dash VIN plate.
b. A new log book shall be issued using the source vehicle dash VIN along with the source vehicle model year.
c. This updated car must conform to all rules governing the source vehicle’s model year, including, but not limited to updating
the following: complete engine assembly (from airbox to downpipe), ECU, wiring harness (in its entirety), dash including VIN
plate, brakes, and differential.
2. #17843 (Jim Drago) Compliance Program
The CRB is seeking member input about the possibility of re-establishing a compliance fee on Spec Miata entries in
2016. Please comment on the following to crbscca.com
Establishment of a Spec Miata compliance fee:
1. Should a compliance fee be established? Yes or No
2. If Yes, should fee be charged at both Majors and Regionals and be used for compliance checks at all eventsâ€
3. Should fee be charged at Majors only, and be used for compliance checks at Majors only?
4. Majors only - What fee would be appropriate?
5. Majors and Regionals - What fee for Majors and what fee for Regionals?
Use of funds:
1. Should part of the fund be used to compensate competitors for extended tech teardowns if they are found compliant?
2. Should fee be used to increase frequency of tech at more events?
3. Should a sealed motor program be instituted and funded by the fees?
4. Who should administer the program?
CLUB RACING TECHNICAL BULLETIN
Spec Miata
1. #17818 (Ralph Provitz) Throttle Body/Restrictor Gaskets
In GCR Section 9.1.7.C.1.k.1.d., add the following language:
“....and must not be modified. An OE (or equivalent) gasket shall be used on both sides of the restrictor plate.â€
2. #17821 (Jim Drago) Compression and Carbon
In GCR section 9.1.7.C.1., remove section j. (compression ratio table) and re-letter the following sections.
In SM spec line, add “(without carbon)†to the Bore x Stroke column.