"Iannetti Advanced Carbon Apex Seals", anyone using/heard about? (not ceramics)
09-17-05, 09:54 PM
#1
Full Member
Thread Starter
"Iannetti Advanced Carbon Apex Seals", anyone using/heard about? (not ceramics)
As in the title. Here is their description on the Mazda Competition catalog:
"Iannetti Advanced Carbon Apex Seals
Design
The two (2) spring design allows for a higher spring pressure which helps
improve chamber sealing. This design feature allows the engine to be run with
a higher degree of timing before TDC, retarding the onset of pre-ignition or
detonation and effectively increasing the engines horsepower capabilities. The
insignificant wear characteristics of the material allows the use of almost double
the apex spring pressure than could be used with other stock or carbon apex
seals. This capability also contributes to better sealing, thereby improving the
containment of the combustion chamber pressures, which in turn, assists in
preventing the onset of detonation.
Material
The apex seal material exhibits the following qualities: high strength, low friction
and lightweight (lower than ferrous-based seals).
Recent material composition improvements have been made, especially in the
case of the 2 mm Iannetti apex seal used for turbo applications. The Iannetti
2 mm seal can handle over 50% more stress on the apex seal beam cross-section
than the 3 mm stock seal for normally aspirated 13B engines.
Benefits
Provides excellent sealing characteristics at all temperatures
Withstands damaging engine detonation
Will not absorb moisture when engine is being stored
Ideal for turbo applications
Iannetti seals have been used by most major professional teams in the world:
Winner of the 1994 IMSA World Sports Car Championship,
Wayne Taylor Team Downing/Atlanta.
3rd in Class at the 24 Hours of Le Mans,
1995 - MazdaSpeed Team Downing/Atlanta.
3rd overall at the Rolex 24 Hours of Daytona,
1996 Team Downing/Atlanta.
1st in Class at the 24 Hours of LeMans,
1996 - MazdaSpeed Team Downing/Atlanta."
"Iannetti Advanced Carbon Apex Seals
Design
The two (2) spring design allows for a higher spring pressure which helps
improve chamber sealing. This design feature allows the engine to be run with
a higher degree of timing before TDC, retarding the onset of pre-ignition or
detonation and effectively increasing the engines horsepower capabilities. The
insignificant wear characteristics of the material allows the use of almost double
the apex spring pressure than could be used with other stock or carbon apex
seals. This capability also contributes to better sealing, thereby improving the
containment of the combustion chamber pressures, which in turn, assists in
preventing the onset of detonation.
Material
The apex seal material exhibits the following qualities: high strength, low friction
and lightweight (lower than ferrous-based seals).
Recent material composition improvements have been made, especially in the
case of the 2 mm Iannetti apex seal used for turbo applications. The Iannetti
2 mm seal can handle over 50% more stress on the apex seal beam cross-section
than the 3 mm stock seal for normally aspirated 13B engines.
Benefits
Provides excellent sealing characteristics at all temperatures
Withstands damaging engine detonation
Will not absorb moisture when engine is being stored
Ideal for turbo applications
Iannetti seals have been used by most major professional teams in the world:
Winner of the 1994 IMSA World Sports Car Championship,
Wayne Taylor Team Downing/Atlanta.
3rd in Class at the 24 Hours of Le Mans,
1995 - MazdaSpeed Team Downing/Atlanta.
3rd overall at the Rolex 24 Hours of Daytona,
1996 Team Downing/Atlanta.
1st in Class at the 24 Hours of LeMans,
1996 - MazdaSpeed Team Downing/Atlanta."
09-19-05, 05:57 PM
#2
Full Member
Thread Starter
Wow, nobody ever heard about these apex seals? Do these things even exists? Can somebody check if they are still available with Mazda Competition? They seem to be the next big deal, almost as good as ceramics but not as expensive. Any info around about them?
09-19-05, 09:49 PM
#4
D.I.L.U.S.I.
iTrader: (5)
Join Date: Nov 2002
Location: L-Town pa
Posts: 2,051
Likes: 0
Received 0 Likes
on
0 Posts
im to am looking for the rite seal the first time around in this rebuild.. its funny i just found a site one line http://www.idahorotary.com/links.htm that had them in it but there wasnt a price for them.. would you happen to know what there going to cost for a set and springs for the 13bt?
daveB in these 3 seasons of racing your saying that its all on the one set of seals? whats your setup. turbo/ nitrious oxide? what kind of racing are you doing? how many passes..
how doyou think these seals will hold up for a street rat setup
daveB in these 3 seasons of racing your saying that its all on the one set of seals? whats your setup. turbo/ nitrious oxide? what kind of racing are you doing? how many passes..
how doyou think these seals will hold up for a street rat setup
09-23-05, 10:00 PM
#5
Full Member
Join Date: May 2001
Location: Indian Springs, OH USA
Posts: 160
Likes: 0
Received 0 Likes
on
0 Posts
The car is a S5 13b and is in a road race car. The engine has 50 to 60 hours on it under race conditions.
The carbon seals don't have the compression as stock in a cold engine, but, if measured and fitted correctly, work fine when the engine is warmed up. It is my understanding that if you drop a carbon seal, it won't destroy the housing.
I am going to take the engine down this winter to replace the coolant seals, and will measure the apex seals. If they are still in spec, they will go back in.
The carbon seals don't have the compression as stock in a cold engine, but, if measured and fitted correctly, work fine when the engine is warmed up. It is my understanding that if you drop a carbon seal, it won't destroy the housing.
I am going to take the engine down this winter to replace the coolant seals, and will measure the apex seals. If they are still in spec, they will go back in.
09-25-05, 01:55 PM
#7
Senior Member
Join Date: Jul 2002
Location: Ann Arbor, MI
Posts: 624
Likes: 0
Received 0 Likes
on
0 Posts
You numbskulls, everyone knows about these seals.... MFR had them developed for the 787B, specifically to seal better at very high (~8000+ RPM). They're great, but as I understand it you can only use them on new rotor housings and they are super pricey.
Trending Topics
09-25-05, 03:47 PM
#10
Full Member
Thread Starter
Here is a link with some prices:
http://rotaryracing.com/rr_engine_pa..._Apex_Seal.htm
I remember checking this site a year or so ago (hard not to notice their "Matrix" backdrop") and there was no mention of Iannetti carbon seals then (rather, they did mention Iannetti ceramics back then), so I guess they are a new thing. And from the response I have seen so far for this thread, there is hardly anybody using them on the forum yet. DaveB mentions that he is using carbon seals from Mazdatrix, I don't see Iannetti carbon seals on their website, so I guess his are not Iannettis. So, nobody out there who can provide us with good insights about these seals? Perhaps someone from Mazda Competition?
http://rotaryracing.com/rr_engine_pa..._Apex_Seal.htm
I remember checking this site a year or so ago (hard not to notice their "Matrix" backdrop") and there was no mention of Iannetti carbon seals then (rather, they did mention Iannetti ceramics back then), so I guess they are a new thing. And from the response I have seen so far for this thread, there is hardly anybody using them on the forum yet. DaveB mentions that he is using carbon seals from Mazdatrix, I don't see Iannetti carbon seals on their website, so I guess his are not Iannettis. So, nobody out there who can provide us with good insights about these seals? Perhaps someone from Mazda Competition?
09-28-05, 08:44 PM
#11
Full Member
Join Date: May 2001
Location: Indian Springs, OH USA
Posts: 160
Likes: 0
Received 0 Likes
on
0 Posts
Call Dave Lemon at Mazdatrix and talk with him about them. After measuring mine, I found them to be within spec and they went back in the engine. Remember, these seals are 1 piece.If carefully measured and seated, the hold up very well in N/A engines and are very housing friendly from my point of view.
09-29-05, 10:59 AM
#12
Ianetti makes both carbon and ceramics.
Ceramics go in any engine but are mainly used in turbo applications.
Carbon seals are for n/a applications only and are all 1-piece design and availabe in either 2mm or 3mm versions.
Mazdaspeed sells the carbon seals in two versions, n/a only and those used with nitrous injection on an n/a engine. In either case, the price should be less than $500 retail and about $350 if you are in the contigency program.
Ceramics go in any engine but are mainly used in turbo applications.
Carbon seals are for n/a applications only and are all 1-piece design and availabe in either 2mm or 3mm versions.
Mazdaspeed sells the carbon seals in two versions, n/a only and those used with nitrous injection on an n/a engine. In either case, the price should be less than $500 retail and about $350 if you are in the contigency program.
10-06-05, 08:57 AM
#14
Senior Member
iTrader: (2)
Join Date: Mar 2001
Location: Boston, MA 02130
Posts: 495
Likes: 0
Received 0 Likes
on
0 Posts
Originally Posted by DaveB
The car is a S5 13b and is in a road race car. The engine has 50 to 60 hours on it under race conditions.
The carbon seals don't have the compression as stock in a cold engine, but, if measured and fitted correctly, work fine when the engine is warmed up. It is my understanding that if you drop a carbon seal, it won't destroy the housing.
I am going to take the engine down this winter to replace the coolant seals, and will measure the apex seals. If they are still in spec, they will go back in.
The carbon seals don't have the compression as stock in a cold engine, but, if measured and fitted correctly, work fine when the engine is warmed up. It is my understanding that if you drop a carbon seal, it won't destroy the housing.
I am going to take the engine down this winter to replace the coolant seals, and will measure the apex seals. If they are still in spec, they will go back in.
Last edited by Jack; 10-06-05 at 09:00 AM.
