Mechanical Changes On RX-8 Series I to II
11-22-2009, 02:16 AM
#302
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HI mates..
Just checked mine with a small pen mirror and mini torch (sorry Flash Light (that does not flash
))..
Anyway the new S2 Coil Plate has a "Concave" groove, when looking at the plate face on so there is this Hollow Part that the coils sit over.
The grove is about 1 CM (3/8 ths) and goes all the length of the plate, just like the parts pic.
So, I guess Mazda put this there to help with some air flow or movement under the coils when compared to the completely flat base plate on the Series 1's.
Does it do any good??, I don't really know, although the Coils are the same as the Series 1 from December 2007 Build Date in Series 2's.
I guess it can't do any harm.
Just checked mine with a small pen mirror and mini torch (sorry Flash Light (that does not flash
))..Anyway the new S2 Coil Plate has a "Concave" groove, when looking at the plate face on so there is this Hollow Part that the coils sit over.
The grove is about 1 CM (3/8 ths) and goes all the length of the plate, just like the parts pic.
So, I guess Mazda put this there to help with some air flow or movement under the coils when compared to the completely flat base plate on the Series 1's.
Does it do any good??, I don't really know, although the Coils are the same as the Series 1 from December 2007 Build Date in Series 2's.
I guess it can't do any harm.
11-22-2009, 07:56 PM
#304
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Thread Starter
Lets see...
The CAT Part Numbers are definitely different for the Manual (Auto uses a carry over from S1), it uses the same gaskets or O rings as S1.
The Oxygen sensor is different by Part Number for Manuals but the same for Auto's, the O2 protection Guard or Bracket is different and S2 specific.
Unfortunately I don't have both of them to Physically compare, it is more than likely in this case that there is No REAL Difference ( I have seen this before with Mazda's Exhausts)...
Could also be the CATS internals that have slightly changed for the Manuals?
The CAT Part Numbers are definitely different for the Manual (Auto uses a carry over from S1), it uses the same gaskets or O rings as S1.
The Oxygen sensor is different by Part Number for Manuals but the same for Auto's, the O2 protection Guard or Bracket is different and S2 specific.
Unfortunately I don't have both of them to Physically compare, it is more than likely in this case that there is No REAL Difference ( I have seen this before with Mazda's Exhausts)...
Could also be the CATS internals that have slightly changed for the Manuals?
12-06-2009, 11:15 PM
#305
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New Water pump "O" Ring, Replaces Gasket
Series II has an all new "O" Ring when fixing the newly designed Water Pump, the "O" ring is used instead of the normal paper type gasket.
12-07-2009, 06:54 AM
#306
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2009 changes
i am wondering that if i am reading this information correctly that the transmission is or is related to th mx5. Does this mean that there is a chance the a short throw shifter could be used in both the 2009 rx8 and rx5? axial flow feel that they will not develope one for 2009+.
12-07-2009, 01:31 PM
#307
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YES...it is the NC MX-5 design tranny...
12-07-2009, 08:57 PM
#309
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I had this question asked before about a SS for the 09~ RX-8's...
You have to check out the US or UK Forums for a Supplier...
Remember it is for the NC Model MX-5/Miata...I can't guarantee it fits, but I can't see why not...
http://forum.miata.net/vb/index.php?
12-08-2009, 10:40 AM
#310
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short throw shifter for 2009+ rx8
Is there anyone with experience with yhe mazda miata short throw shifter in the 2009+ rx8? Unfortunately, it appears that no one in developing one for these models[ rx8] and the trasmission seems to be the mc model miata. Thanks
12-08-2009, 01:08 PM
#311
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http://www.miatamania.com/Shop/Searc...archText=short shifter&WebCatalogID=0
01-27-2010, 11:40 AM
#313
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I can't confirm that S1 Suspension will fit on S2.
Remember the front steering Knuckles, Hub, Shocks, Spring, upper and lower Aluminum A Arms are all NEW by Part Number on S2.
Rear Springs, shocks, Axel hub and suspension arms/rods are also NEW by Part Number.
I have not heard that any S2 PN (F189) Supersede or usable in either model direction.
Remember the front steering Knuckles, Hub, Shocks, Spring, upper and lower Aluminum A Arms are all NEW by Part Number on S2.
Rear Springs, shocks, Axel hub and suspension arms/rods are also NEW by Part Number.
I have not heard that any S2 PN (F189) Supersede or usable in either model direction.
01-27-2010, 02:40 PM
#314
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I've noticed a couple of aftermarket sites with springs they claim fit the S1 now extending them up to MY2010. Course most of them use that same "select your vehicle" system...
I've got D2 lowering springs en route from assaultech that list the same part number from 04-10, so if i get em before this question closes i'll let ya'll know for sure.
I've got D2 lowering springs en route from assaultech that list the same part number from 04-10, so if i get em before this question closes i'll let ya'll know for sure.
01-28-2010, 08:30 AM
#315
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Cheers, Ash.
I think thats why there are 2 options of Tein's MONOFLEX for S1 and S2 on Tein's website.
But a guy told me that he had Bilstein PSS9s fit good on his S2. Weild...
I think thats why there are 2 options of Tein's MONOFLEX for S1 and S2 on Tein's website.
But a guy told me that he had Bilstein PSS9s fit good on his S2. Weild...
02-01-2010, 03:51 PM
#316
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Thinking t'other way around; aren't the Bilsteins fitted to the S2 the same as the ones originally fitted to the '06 'Prodrive' (PZ) S1 special edition models in the UK (and subsequently the 40th Anniversary edition)?
02-01-2010, 08:37 PM
#317
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The S2 Shocks and Springs are Also different and S2 Specific by Part Number.
My EPC is for Australia and the UK...
Bilstein are also different between S1 and S2..
S2 Rear Shocks...
F190-28-700A Normal
F197-28-700A Bilstein Sport (R3 USA and R3 UK, GT model Australia).
S1 Rear Shocks..there are 6 ,yes SIX, different ones listed...
FE92-28-700 Normal 2004-2008
F157-28-700D "Sport" 1st Dec, 2004 to 1st Oct 2005 Production.
F184-28-700A Special Tune UP TO 1st Oct 2005 Production
F232-28-700A Hard Suspension
FE87-28-700 "Sport" from 1st Oct 2005
FE91-28-700A Special Tune From 1st October 2005
So there are 5 by Mazda Part Number that do not Supersede any further for the S1 that is either Sport or Hard, without them to compare I am thinking the Hard and Special Tune are the Bilsteins.
Now whether any are interchangeable as a "PAIR" I do not know, some of the changes in the S1 Sports and Hards could be very minor.
However, the Series 2 (S2) is different because they mount in different suspension parts which are S2 specific and NOT used in any way on Series 1 RX-8's.
02-03-2010, 01:45 AM
#319
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S2 Springs per part number are different than S1, same comparison to the shocks.
Now, with the springs it could be just the thickness of the coil metal itself (mm), the length, number of coils??.
Frankly, I don't think the difference would be that great, but someone needs to try, or compare part for part.
Now, with the springs it could be just the thickness of the coil metal itself (mm), the length, number of coils??.
Frankly, I don't think the difference would be that great, but someone needs to try, or compare part for part.
06-09-2010, 11:17 AM
#320
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We will likely be doing springs on a 2010 soon enough so I will compare springs. Some things I have noticed is the VFAD tubing diameter looks a lot larger. The exhaust seems the same, I will be test fitting the 2010 catback on my car soon since we just installed the Racing Beat dual tip catback 
Oh, and the Auto definitely only has one oil cooler.
Oh, and what is this connector for?
Oh, and the Auto definitely only has one oil cooler.
Oh, and what is this connector for?
06-09-2010, 06:51 PM
#321
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Hey 9K..
VFAD Assembly is still the same as S1.
See in first PIC the Black Lower (Small) Mesh Stone Guard in front of the Condenser/Radiator.
These were standard on UK models, looks like S2 USA also, I installed one on my car.
That plug, mine does not have it, perhaps it is AUTO Specific, the number of wires in the plug would suggest Auto Trans.
Just had another look at EPC, it is Auto Specific, that silver plate under plug is not serviceable, only with the Insulator Tray or Black Tray that air intake goes through.
VFAD Assembly is still the same as S1.
See in first PIC the Black Lower (Small) Mesh Stone Guard in front of the Condenser/Radiator.
These were standard on UK models, looks like S2 USA also, I installed one on my car.
That plug, mine does not have it, perhaps it is AUTO Specific, the number of wires in the plug would suggest Auto Trans.
Just had another look at EPC, it is Auto Specific, that silver plate under plug is not serviceable, only with the Insulator Tray or Black Tray that air intake goes through.
06-14-2010, 01:35 AM
#322
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Thread Starter
No, OP info is not available on the bus via OBDII Scanner.
PCM does monitor Metering Oil Pump oil pressure sensor if oil pressure is high or low via the Red Dash Warnng Light for "Oil".
Values Less than 5.8 PSI or Over 26.1 PSI continues for 10 seconds after specified period passes after the engine start. (Warning Light)
06-14-2010, 08:24 AM
#323
SARX Legend
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Hey 9K..
VFAD Assembly is still the same as S1.
See in first PIC the Black Lower (Small) Mesh Stone Guard in front of the Condenser/Radiator.
These were standard on UK models, looks like S2 USA also, I installed one on my car.
That plug, mine does not have it, perhaps it is AUTO Specific, the number of wires in the plug would suggest Auto Trans.
Just had another look at EPC, it is Auto Specific, that silver plate under plug is not serviceable, only with the Insulator Tray or Black Tray that air intake goes through.
VFAD Assembly is still the same as S1.
See in first PIC the Black Lower (Small) Mesh Stone Guard in front of the Condenser/Radiator.
These were standard on UK models, looks like S2 USA also, I installed one on my car.
That plug, mine does not have it, perhaps it is AUTO Specific, the number of wires in the plug would suggest Auto Trans.
Just had another look at EPC, it is Auto Specific, that silver plate under plug is not serviceable, only with the Insulator Tray or Black Tray that air intake goes through.
I compared it to my old VFAD tube I had laying around and it is way larger in diameter but maybe the Auto VFAD pipe is larger?
06-14-2010, 05:41 PM
#324
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Thread Starter
My EPC shows no difference between High Power (6 port, Auto or Man) in Series 1 or 2 (N3H3-13-200C).
It could be one of those parts where Mazda makes a change and does not change Part Number in any way...it does happen, but, very, very rare.
