Mazda Rotary Club

General => General Technical => Topic started by: yonner on August 15, 2004, 06:37:34 PM

Title: seals
Post by: yonner on August 15, 2004, 06:37:34 PM
is there any difference in what an engin can take when it comes to 2mm or 3mm seals

also who makes the best 2mm seals

aslso will pip at wgt provide me with new exaust pored rotor housings and surface grind and mild port my sideplates???
Title: seals
Post by: Fish on August 15, 2004, 07:58:07 PM
1, 2mm tips seal better than 3mm, but 3mm take detonation better than 2mm.

2, 3mm seals have been known to chatter the housing.

3, Mazda IMHO make the best 2mm, unless you want to spend circa 1500 quid for ceramics.

4, You would need to ask Pip if he will port housings.

Fish
Title: seals
Post by: spanerhed7 on August 15, 2004, 10:31:21 PM
I would go with the 2mm tips also. I have heard that you can fit the RX8 tips in the FD engine now, anyone know about this?
As Ive said elsewhere, Mazda spent more money and have more knowledge than anyone else when it comes to rotaries, and they still use 2mm....
Title: seals
Post by: Carl on August 16, 2004, 08:30:22 AM
QuoteOriginally posted by spanerhed7
I would go with the 2mm tips also. I have heard that you can fit the RX8 tips in the FD engine now, anyone know about this?
As Ive said elsewhere, Mazda spent more money and have more knowledge than anyone else when it comes to rotaries, and they still use 2mm....

RX8 tips do not fit into RX7 rotors.
Kind regards
Carl
Title: seals
Post by: StreetPizza on August 16, 2004, 07:10:32 PM
Anyone considering Rotary Aviation apex seals? I remember there was a bit of a fuss about them some time ago, with claims of massive strength and virtual invulnerability, even faced with detonation.

This thread (http://www.rx7club.com/showthread.php?t=285884&page=1&pp=15), from another board, contains some good info. Some good news, some bad. Certainly some very good customer service.