NRS FD Ceramic Seals for the RX8

Kane · 12-01-2009, 11:39 AM

Yes it can be done; and so far it works great for my car!!!!

Sven is SUPER SUPER helpful and got me all set-up; Speedsource milled my rotors for less than $300 - so $1300 total and you too can have a motor that is stronger; I have never seen an RX8 pull 21" of vacuum at cruise (NOT DECEL) until now....

Dyno results soon.

05rex8 · 12-01-2009, 08:51 PM

nice, man

***Herblenny*** · 12-01-2009, 10:23 PM

Kane, what kind of power are you shooting for?

Kane · 12-02-2009, 07:43 AM

I'd be stoked to hit 400WHP no meth on pump gas @15 PSI or so

But in reality I'd probably be at 360-370 until I up the boost and I'll need to add meth or water injection for that.

***Herblenny*** · 12-02-2009, 07:59 AM

I'm not sure about this but can you use FD rotors and turn up the boost?

***TitaniumTT*** · 12-02-2009, 08:54 AM

My understanding is it's the plates that are weak point in the renni. They can't handle too much heat or too high combustion pressures.

thewird · 12-26-2009, 10:57 PM

Did you use 2mm or 3mm seals?

thewird

Kane · 12-27-2009, 08:10 AM

2mm.

thewird · 12-27-2009, 08:00 PM

Not that their is anything at all wrong with that decision but if you were looking for stronger and had to mill the rotors anyway, why didn't you go with 3mm?

thewird

05rex8 · 12-27-2009, 10:34 PM

The Mazda cast is not deep enough. I mean it will work but it doesn't leave much material. I would be concerned about extreme high load situations with 3mm seals.

thewird · 12-28-2009, 01:26 AM

Quote:

Originally Posted by 05rex8

The Mazda cast is not deep enough. I mean it will work but it doesn't leave much material. I would be concerned about extreme high load situations with 3mm seals.

Could you please elaborate? How is it different from doing 3mm on an FD rotor? Which would be the part that is too thin?

thewird

Kane · 12-28-2009, 07:53 AM

It's the width.

I talked to Kevin (Rotary Resurrection) and Speedsource about it.... turns out when they widen the groove; it has a tendency to break off the shoulder of the rotor. But you don't know that until AFTER the motor is re-assembled.

If memory serves, Kevin said he loses 1 out of 4 8 rotors milled out... that is too high of odds for me.

***TitaniumTT*** · 12-28-2009, 10:29 AM

Do you know what the failure rate is for milling them deeper for use in earlier 13B engines? I'm assuming that's the milling that you did have performed, correct?

thewird · 12-28-2009, 03:11 PM

Is what your referring to a machining error? As it needs to be a very accurate/precise machining process? So it being the machinists fault and not the rotor itself?

When machining an FD rotor to 3mm, there have been many cases where machinists don't get it spot on and trash the rotors. But this has to do with the machinist you go to. Once you find the right machinist, trashing rotors is no longer a problem.

Just trying to figure out why. Thanks.

thewird

Kane · 12-28-2009, 08:08 PM

Quote:

Originally Posted by TitaniumTT

Do you know what the failure rate is for milling them deeper for use in earlier 13B engines? I'm assuming that's the milling that you did have performed, correct?

I did have it performed by Speedsource. I do not know that the failure rating is - but I know it's pretty low.

Quote:

Originally Posted by thewird

Is what your referring to a machining error? As it needs to be a very accurate/precise machining process? So it being the machinists fault and not the rotor itself?

When machining an FD rotor to 3mm, there have been many cases where machinists don't get it spot on and trash the rotors. But this has to do with the machinist you go to. Once you find the right machinist, trashing rotors is no longer a problem.

Just trying to figure out why. Thanks.

thewird

Kevin can better answer that question - obviously 99.999% of the time is machining or material defects.... nothing technically should prevent you from running a 3mm seal in a RX8 - I just was unwilling to take the risk since 8 rotors are pretty expensive.

12-01-2009, 11:39 AM	#1
Kane All about the O2 Join Date: Sep 2008 Posts: 295 Rep Power: 17	NRS FD Ceramic Seals for the RX8 Yes it can be done; and so far it works great for my car!!!! Sven is SUPER SUPER helpful and got me all set-up; Speedsource milled my rotors for less than $300 - so $1300 total and you too can have a motor that is stronger; I have never seen an RX8 pull 21" of vacuum at cruise (NOT DECEL) until now.... Dyno results soon. __________________ My 2007 Turbocharged RX8

12-01-2009, 08:51 PM	#2
05rex8 Turbo 8 Join Date: Oct 2008 Posts: 131 Rep Power: 17	nice, man __________________

12-01-2009, 10:23 PM	#3
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	Kane, what kind of power are you shooting for? __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

12-02-2009, 07:43 AM	#4
Kane All about the O2 Join Date: Sep 2008 Posts: 295 Rep Power: 17	I'd be stoked to hit 400WHP no meth on pump gas @15 PSI or so But in reality I'd probably be at 360-370 until I up the boost and I'll need to add meth or water injection for that. __________________ My 2007 Turbocharged RX8

12-02-2009, 07:59 AM	#5
*Herblenny* Founder/Administrator/Internet Pitbull :) Join Date: Jan 2008 Posts: 644 Rep Power: 10	I'm not sure about this but can you use FD rotors and turn up the boost? __________________ DGRR 2013 - Year of 13B www.DealsGapRotaryRally.com http://www.facebook.com/Herblenny

12-02-2009, 08:54 AM	#6
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	My understanding is it's the plates that are weak point in the renni. They can't handle too much heat or too high combustion pressures. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

12-26-2009, 10:57 PM	#7
thewird Rotary Fan in Training Join Date: Mar 2008 Location: Toronto, Canada Posts: 37 Rep Power: 0	Did you use 2mm or 3mm seals? thewird __________________

12-27-2009, 08:10 AM	#8
Kane All about the O2 Join Date: Sep 2008 Posts: 295 Rep Power: 17	2mm. __________________ My 2007 Turbocharged RX8

12-27-2009, 08:00 PM	#9
thewird Rotary Fan in Training Join Date: Mar 2008 Location: Toronto, Canada Posts: 37 Rep Power: 0	Not that their is anything at all wrong with that decision but if you were looking for stronger and had to mill the rotors anyway, why didn't you go with 3mm? thewird __________________

12-27-2009, 10:34 PM	#10
05rex8 Turbo 8 Join Date: Oct 2008 Posts: 131 Rep Power: 17	The Mazda cast is not deep enough. I mean it will work but it doesn't leave much material. I would be concerned about extreme high load situations with 3mm seals. __________________

12-28-2009, 07:53 AM	#12
Kane All about the O2 Join Date: Sep 2008 Posts: 295 Rep Power: 17	It's the width. I talked to Kevin (Rotary Resurrection) and Speedsource about it.... turns out when they widen the groove; it has a tendency to break off the shoulder of the rotor. But you don't know that until AFTER the motor is re-assembled. If memory serves, Kevin said he loses 1 out of 4 8 rotors milled out... that is too high of odds for me. __________________ My 2007 Turbocharged RX8

12-28-2009, 10:29 AM	#13
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son Posts: 4,581 Rep Power: 10	Do you know what the failure rate is for milling them deeper for use in earlier 13B engines? I'm assuming that's the milling that you did have performed, correct? __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

12-28-2009, 03:11 PM	#14
thewird Rotary Fan in Training Join Date: Mar 2008 Location: Toronto, Canada Posts: 37 Rep Power: 0	Is what your referring to a machining error? As it needs to be a very accurate/precise machining process? So it being the machinists fault and not the rotor itself? When machining an FD rotor to 3mm, there have been many cases where machinists don't get it spot on and trash the rotors. But this has to do with the machinist you go to. Once you find the right machinist, trashing rotors is no longer a problem. Just trying to figure out why. Thanks. thewird __________________

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