Re: MAF sensor rule question
This is a repost from the nasioc forums:
http://forums.nasioc.com/forums/showthread.php?t=977131
a subject very near and dear to me heart there really is no need for a clarification
This all came up prior to the new intake wording that went into effect this year. It all boils down to the factory parts system. If it's just a bolt-in sensor that's the part you have to re-use. If the factory replacement part includes an integral housing that's the part you have to use, in it's entirety.
The discussion regarding some vehicles being forced to maintain a restriction in their intake essentially fell on deaf ears. The ST rules still fall back on the Stock rule set. You're not allowed to modify an OE part unless the rule specifically states that you can.
Since BMW considers the housing to be part of the MAF it has to be re-used just as supplied new by the dealer. To do any different will require a rule change, something that most of the decision-makers were not willing to consider at the time. If you want to write a letter to the SEB/STAC, asking for that rule change is the likely subject. I'm not sure that the general feeling has changed since the last time though.
That's part of the reason I dumped the BMW E30 M3 STX project, it has the old flapper MAF that is even more restrictive than the newer ones ... and nobody heeded my advice to write in about it all last year. Silence is an answer too ...
Mark Sipe
Isn't Mark on the STAC?
This is a repost from the nasioc forums:
http://forums.nasioc.com/forums/showthread.php?t=977131
a subject very near and dear to me heart there really is no need for a clarification
This all came up prior to the new intake wording that went into effect this year. It all boils down to the factory parts system. If it's just a bolt-in sensor that's the part you have to re-use. If the factory replacement part includes an integral housing that's the part you have to use, in it's entirety.
The discussion regarding some vehicles being forced to maintain a restriction in their intake essentially fell on deaf ears. The ST rules still fall back on the Stock rule set. You're not allowed to modify an OE part unless the rule specifically states that you can.
Since BMW considers the housing to be part of the MAF it has to be re-used just as supplied new by the dealer. To do any different will require a rule change, something that most of the decision-makers were not willing to consider at the time. If you want to write a letter to the SEB/STAC, asking for that rule change is the likely subject. I'm not sure that the general feeling has changed since the last time though.
That's part of the reason I dumped the BMW E30 M3 STX project, it has the old flapper MAF that is even more restrictive than the newer ones ... and nobody heeded my advice to write in about it all last year. Silence is an answer too ...
Mark Sipe
Isn't Mark on the STAC?
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