Apex seals
#1
I'm still doing research and buying parts for my NA buildup, I already have obtained the stock 3 piece 2mm apex seals with the stock springs... but after doing further research ceramic 2mm apex seals are looking quite attractive, however even after deciding ceramic apex seals there is another question which needs answering, one piece of two piece? Right now I'm leaning towards 2 piece 2mm ceramics... The improved sealing of the two piece is important for my NA to perform well (compression)... I'm curious if any of you have any experience with the one piece seals or other materials... any input at all will be appreciated.
#3
Originally Posted by j9fd3s' date='Oct 12 2002, 03:56 AM
are you planning on revving it higher than 8500rpms? if you are not, use the stock ones they seal best. if you go ceramic, the 2 peice will seal better
mike
mike
thanks.
#5
Originally Posted by pengaru' date='Oct 11 2002, 08:06 PM
Perhaps this topic should get moved to a more general forum... I always post in 2nd gen since I only have an FC.. this is not generation specific really though. Sorry about that.
are you building a 6 port motor?
i was looking at it from a cost/benifit point of view.
the stock seals are 99% as good under 8500rpms, and they cost about 6 times less than ceramic ones do. if you are going to be over 8k all the time then it might be worth it to go ceramic. we had my 1st gen at the track, a couple of months ago an redline in second is 45-50mph, we had the car well over 65mph for long periods of time and its fine, it has stock 2mm seals.
mike
#6
Originally Posted by j9fd3s' date='Oct 12 2002, 04:21 AM
[quote name='pengaru' date='Oct 11 2002, 08:06 PM']Perhaps this topic should get moved to a more general forum... I always post in 2nd gen since I only have an FC.. this is not generation specific really though. Sorry about that.
are you building a 6 port motor?
i was looking at it from a cost/benifit point of view.
the stock seals are 99% as good under 8500rpms, and they cost about 6 times less than ceramic ones do. if you are going to be over 8k all the time then it might be worth it to go ceramic. we had my 1st gen at the track, a couple of months ago an redline in second is 45-50mph, we had the car well over 65mph for long periods of time and its fine, it has stock 2mm seals.
mike[/quote]
Yes, I am building a street ported 6 port motor. It has S5 NA end housings, S5 turbo rotor housings, and S5 turbo intermediate housing, intake and exhaust ports all street ported. Also using S5 NA intake parts (VDI... aux ports etc..) for now anyways, may try some custom variable length intake runners once I hone my brazing skills to black belt level. :yum:
#8
i dont know how this is done, but when my mechanic rebuild my engine, I had three options for apex seal:
1. The stock seals (2mm) - $50 / seal
2. Some upgraded ones, maybe from an S5 turbo? 2mm - $70 / seal
3. 3 mm racing seals in which the tip of the rotor had to be machined to allow more space - $100 / seal
supposedly my mechanic said they should hold up longer, and since i have a turbo with a street port, i figured those might last longest.
if you want more info on 3 mm seals, contact my mechanic at
www.alamorotary.com
1. The stock seals (2mm) - $50 / seal
2. Some upgraded ones, maybe from an S5 turbo? 2mm - $70 / seal
3. 3 mm racing seals in which the tip of the rotor had to be machined to allow more space - $100 / seal
supposedly my mechanic said they should hold up longer, and since i have a turbo with a street port, i figured those might last longest.
if you want more info on 3 mm seals, contact my mechanic at
www.alamorotary.com
#10
Originally Posted by Felix Wankel' date='Oct 12 2002, 10:10 PM
Hey mike, shouldn't a first gen have 3mm seals? :stickpoke:
mike
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