The difference between bridge and street porting??
05-11-10, 04:01 AM
#1
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The difference between bridge and street porting??
I was looking around on a website some of you may be familiar with, especially if you live in WA, atkinsrotary.com. Well on their list of services there was street porting and bridge porting. I am just wondering, what is the difference, is one better than the other and if one is limited to a certain kind of application? One more question, nothing to do with the thread title but is 3mm apex seals better than 2mm? I would assume bigger means better compression but I really don't know? Thanks for your help
05-11-10, 09:57 AM
#2
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Even in the new user forum, it is a great idea to search first. For example, I searched this forum for "bridgeport" can came up with the following that will answer your question:
https://www.rx7club.com/forum/showthread.php?t=901479 (from only a few days ago)
https://www.rx7club.com/forum/showthread.php?t=890902
https://www.rx7club.com/forum/showthread.php?t=798008
https://www.rx7club.com/forum/showthread.php?t=852231
To answer your second question, 3MM seals are generally used when your rotors are too worn to accept 2MM seals. Mazda moved away from 3MM seals a long time ago as 2MM seals offer superior sealing. 3MM seals are only marginally stronger then 2MM seals.
https://www.rx7club.com/forum/showthread.php?t=901479 (from only a few days ago)
https://www.rx7club.com/forum/showthread.php?t=890902
https://www.rx7club.com/forum/showthread.php?t=798008
https://www.rx7club.com/forum/showthread.php?t=852231
To answer your second question, 3MM seals are generally used when your rotors are too worn to accept 2MM seals. Mazda moved away from 3MM seals a long time ago as 2MM seals offer superior sealing. 3MM seals are only marginally stronger then 2MM seals.
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