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Mechanical Changes On RX-8 Series I to II

Old 12-01-2008, 01:47 AM
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Mechanical Changes On RX-8 Series I to II

As a former Mazda Parts man I thought I would highlight some of the Mechanical/Internal changes between the Series I and Series II RX-8.

It may be boring to some, but I find it relevant, interesting and hopefully helpful.

Ash

CONFIRMED MECHANICAL CHANGES FOR SERIES II RX-8 2009~

Page 6 On-wards Shows the Parts Diagrams and Changes..-
Mechanical Changes On RX-8 Series I to II - Page 6 - RX8Club.com

All New Powertrain Control Module (PCM) with TEMPERATURE SENSOR newly added and built into the PCM, when ETC (Engine Compartment Temperature) reaches 230F or 100C with Ignition OFF, Medium Cooling Fans Switch ON.
New Larger Genuine Oil Filter and Repositioned On Front Timing Cover Housing To-wards The Sump (Left Hand Side). USE GENUINE 09 SERIES II OIL FILTER ONLY.
Revised Oil Filler and Dip Stick (Longer Type).
New EMOP "Electric Metering Oil Pumps" Two of them... Internal Oil Pressure in EMOP's is between 7.3 and 21.7 PSI (Used for the first time by Mazda)
New Design Oil Injection Nozzles 3 per Rotor Housing..Totalling 6.
New Oil Pump Assembly.
50% Higher Oil Pressure Rate at 100 oC (121oF) @3000 RPM...500 kPa {5.10 kgf/cm2, 72.5 psi} When compared to Series 1 RX-8.
New Oil Pressure Sensor (ONLY Located on #1 EMOP).
Larger Oil Pan Sump Capacity.
New Hex (8mm) Type Sump Drain Plug.
New Internal Oil/Sump Pan Magnet...(First Time Used In A Rotary Engine Since 1985 FC RX-7)
New External Silver Plate Engine Sump Guard.
New Inlet Manifold.
Revised Auxiliary Port Valves.
Revised 4 Fuel Injection Nozzles (2 Primary, 2 Secondary). (Series I six Port Engine had 6 FI Nozzles).
Revised Atmospheric Air Control Solenoid (Near Throttle Body)
New Fuel Pump.
New Radiator Core.
New Radiator Electric Fan Motors.
Revised Radiator Fans Speeds from 2 to 3 Speeds. (Low, Middle, High).
New Alternator.
New Starter Motor (14 Tooth Cog)
New Battery 80D26L. (80 AMP Hour) (Was 50D22L (50AH) or 75D26L (75AH) in Series I)
New Exhaust System.
New Air Conditioner Temperature Controller (Amplifier).
New Bridgestone RE050A's in 18" and 19" (R3).
New Manual Transmission (6 speed MX-5/Miata) (Reverse is now next to 1st gear not next to 6th gear).
New Differential Ratio (Manual).
New Differential Fixing Plate Washer on PPF (Power Plant Frame).
New Differential Mounting Bracket.
New Additional Alloy Cooling Fins (4) on Alloy Differential Cover Plate, Plus Deeper Set Cooling Fins.
Changed Throw Out Bearing (Thrust or Fork Bearing).
Revised Oil Coolers, Air Intakes and Oil Cooler Hose Lines.
Extra Rotor Knock Sensor (Now 1 per Rotor, Total Of 2).
New Water Pump/ New Timing Cover to suit.
New Water Pump Pulley.
New Water Pump "O" Ring as Gasket.
New Spark Plug Leads.
New Ignition Coil Backing/Mounting Plate (Now Ventilated)
New Alternator/Air Compressor Drive Belts.
Revised Eccentric Shaft (Crankshaft) Pulley.
Revised Oxygen Sensor (CAT).
Revised Air/Fuel Ratio Sensor (Exhaust Manifold).
New Air Pump Control Unit.
New One Piece Trans Tunnel Heat Shield (Previously Two Piece).
New Under Body Covers Reducing C Drag from 0.31 to now 0.30.
Larger Fuel Tank (5 litres extra or around a gallon).
New Dynamic Stability Control (DSC) Hydraulic Unit Control Module.
New Yaw Rate (or Combined Sensor) Sensor Unit.
New Rear Suspension Control Links (Rods) Upper/Lower and Trailing Ball Joint wrist area increased in Diameter/Size.
New Rear Stabilizer Bar. (R3)
New Rear Shocks And Springs.
New Rear Axles (Manual Trans) 3mm thicker diameter..
New Rear Suspension Knuckles.
New Rear Parking Brake Cables.
New ABS Wheel Sensors (All 4 Wheels).
Revised TPMS (Tire Pressure Monitoring System) US Only.
New Front Upper And Front Lower Suspension Arms (Wishbone).
New Front Steering Knuckles And Wheel Hubs.
New Front Stabilizer Bar.
New Front Shock and Springs.
New Dashboard Mounting Frame with Crossbar Bushings.
Revised Power Steering Control System Unit.
Revised Headlamp Auto Leveling Sensors.
Revised Air Bag Control Module.
New 3 Piece (Instead of 2) Strut Tower Brace (Manual Only), Auto's Retains Two Piece Tower Brace.
Revised Front and Rear Wheel Arch Splash Guards/Shields.
Thicker (Heavier Guage) Steel On The Two Front Strut Towers.
Additional Spot Weldings Around Both Door Openings For Increased Rigidity.
Stiffened Body Shell = Torsional (twisting) and Flexural (bending) Rigidity have been increased by 5.4 and 8.7 per cent respectively.
Auto's and Manual's both have 6 port engines, Max Power RPM (kw) has been limited to 7500 for Auto compared to 8200 RPM for the manual.

SEE FULL PART NUMBER LISTING FOR S2 ONLY PARTS..This link>https://www.rx8club.com/series-ii-te...mplete-188306/

Last edited by ASH8; 04-24-2012 at 06:50 PM.
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Old 12-01-2008, 01:48 AM
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First there is a structural change to the engines oil filter.

The 09 RX-8 has approximately a 25% larger oil filter, the mounting/screw in face is the same but the oil filter body is longer by about 25%.

USE GENUINE 09 SERIES II OIL FILTER ONLY The Genuine S2 Oil Filter Has a much Higher By Pass Oil Flow Rating than ANY other equivalent. USE GENUINE 09 SERIES II OIL FILTER ONLY



USE ONLY Original N3R1-14-302 There are no aftermarket or other brand of correct OIL FILTER, Including Mobil, Fram, Bosch, NONE.

There is also a change to the engine sump and sump/oil draining plug, the drain plug washer remains the same.
#FS50-21-249 Drain Plug
#9956-41-40099 Gasket/Washer Drain Plug.
Attached Thumbnails Mechanical Changes On RX-8 Series I to II-n3r114302.jpg  

Last edited by ASH8; 06-11-2011 at 05:56 PM.
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Old 12-01-2008, 02:06 AM
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third oil injector, ppf on the other side. new tranny. is that the stuff that is going to be talked about?

btw, it that your car in the avatar? as i might be getting a 09 gt in white. maybe..

beers
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Old 12-01-2008, 02:06 AM
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Yep it is my car in my avatar.

Last edited by ASH8; 01-16-2009 at 10:20 PM.
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Old 12-01-2008, 02:11 AM
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white is hot!!

do you guys get two oil coolers down under?

beers
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Old 12-01-2008, 02:21 AM
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Originally Posted by ASH8 View Post
Yep, now we do have twin oil coolers like the US Models which should include the Auto's I am sure.
ash.

could you send me an email? my screen name @ gmail.com.

you dont take pm. i have a couple of questions that would just be fodder here.

beers
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Old 12-01-2008, 02:46 AM
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are the services still 6 moths 10000km?

I got a ryco oil filter at the moment. from the parts chart it also fit a rx7 but couldn't remember the year. it was larger in diameter and taller. I change oil 3 or 4 times a year so oil filter life isn't such an issue.
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Old 12-01-2008, 06:08 AM
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I lot of things are different... even the aftermarket catback and even the sway bar backets have different numbers on the catalog.
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Old 12-11-2008, 11:21 PM
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It is a good thread ASH. I'm not sure if the foam crossmember would be worth doing. I think the foam could well improve noise by reducing vibrations but that would be the only handling difference and I think the difference would be minute. I'm sure Mazda would say it reduces "juddering" over ruts and therefore handling.
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Old 12-16-2008, 03:24 AM
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Back to the oil filter... cough.

All 13B using the same oil filter. I use the same oil filter that fit well for RX-7.

It does not make sense.
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Old 12-16-2008, 08:46 AM
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There have been a lot of neat changes on the new car including the new diff ratios and the number and type of fuel injectors. I heard the new oil filter may be a better filter. I will test it myself. What are you guys having to pay for that filter?

Paul.
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Old 12-16-2008, 10:14 AM
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Originally Posted by ASH8 View Post
The Engine Sump has a larger holding capacity (as we know).
The Drain plug has changed from a standard mini-bolt type to a recessed flat one which you undo with an 8mm Hex (Allan) Key, the plug's crush washer remains the same.
I hate those type of bolts.

Is the oil filter in the same place?

I don't think we can fit a longer one to our exsisting 8's.

Is it longer to make it easier to grab and change?

Doesn't the RB oil adapter plate mount at the base? That means the filter would be hitting the fire wall so you couldn't use the RB adapter plate.

Last edited by Razz1; 12-16-2008 at 10:22 AM.
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Old 12-16-2008, 03:25 PM
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Oil filter options

Hi Guys

Sorry to jump in and hijack a thread, but as I am not out of warranty I plan on steering well clear of Mazda (lack of)service and OEM pricing.

RYCO filters have a selection that will fit an RX8 with various lengths

RX8 filter http://www.rycofilters.com.au/catalo.../RX8/part/Z436

Other filters identical except with varying lengths http://www.rycofilters.com.au/catalo...%09M20-x1.5-6H

CYA

Matt
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Old 12-29-2008, 02:44 PM
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The new 3rd Oil Injector is staggered in the center towards the spark plugs, the remaining 2 oil injectors are in the same position as before.

So, the 3 injectors are in a triangle position on each rotor housing.
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Old 12-29-2008, 03:19 PM
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Are the oil coolers actually larger? There was an early report that the oil coolers would be "taller" but maybe this was just referring to the front-end styling:
Originally Posted by zoom44 View Post
yes it is true. also different oil pan and the oil coolers are taller. this is what we have been saying about "new oiling system" but didnt have all the specifics available in hard copy just yet. ...
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Old 12-29-2008, 08:10 PM
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Originally Posted by robrecht View Post
Are the oil coolers actually larger? There was an early report that the oil coolers would be "taller" but maybe this was just referring to the front-end styling:
Taken from my Series II (see Avatar) the oil coolers are 240mm wide by 205mm tall, or 9 & 1/2 inches by 8 inches.
Lose about 20% because of actual air flow opening due to the vents styling.

Yes there are two oil coolers now for the Australian Spec (Auto and Manual).

At a guess I assume the coolers are about 20% larger than Series I.
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Old 12-31-2008, 08:25 PM
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Series-II Engine...

MOP changes - located on top of centre plate to suit additional (3rd) oil metering injector
Injectors - Pri2=400cc Sec=525cc
Sump - new baffling
Knock sensors - 1-per rotor
front timing cover - revised design
water pump - revised design
Oil pump - revised design
oil filter - relocated to front lower left corner
IGN coils - cant read the Kanji properly
Oil filler - Spout & dipstick revised design

Series-II chassis drivetrain

Front cross member - foam filled as per 07 run out models (40th Ann version)
LSD - Revised design
Gearbox - Revised design (aka NC MX-5)
Gear level - shorter throw
Wheel/tyre combo - 18" = 22.7kg - 19" = 21.4kg
Steering control arm - link assy raised 7.5mm
Underbody - additional paneling - CD reduction to "0.30"
Shocks - Type-RS/GT Bilsteins, revised mounting points

Visual changes are well known now & easily spotted.

REgards

Last edited by DMRH; 01-01-2009 at 04:14 AM.
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Old 12-31-2008, 09:36 PM
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wow some big changes in engine and managment. with the 4 injectors does it need a new intake manifold?

the wheels seem heavy
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Old 12-31-2008, 10:15 PM
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the auto 4 port version had 4, the hi power 6port had 6 injectors.
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Old 12-31-2008, 11:08 PM
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Originally Posted by DMRH View Post
Wheels - 18" = 22.7kg - 19" = 21.4kg
Are you sure? Maybe you mean lbs instead of kg? Or are you including the weight of the tires maybe?
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Old 01-01-2009, 02:25 AM
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I would think more like 22 and 21 Pounds or about 10 and 9 kilo's each, perhaps adding tyres would be that figure , Rob
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Old 01-01-2009, 04:12 AM
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Originally Posted by robrecht View Post
Are you sure? Maybe you mean lbs instead of kg? Or are you including the weight of the tires maybe?
Sorry mate. Not stuck in the 19th century for the measurement system like the Yanks are.

I'll revise the listing to say wheel/tyre combo in KG.

REgards
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Old 01-01-2009, 11:36 PM
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Originally Posted by rotarenvy View Post
the auto 4 port version had 4, the hi power 6port had 6 injectors.
Sorry mate, my "bad"...

All 2009 RX-8 6 port engines now have 4 Fuel injection nozzles, whereas the 04-08 6 port rotaries had 6 FI Nozzles.
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Old 01-02-2009, 12:11 AM
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Did they fix the issue of the random rattles of the rear door / window?
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Old 01-02-2009, 02:46 AM
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Originally Posted by ASH8 View Post
Sorry mate, my "bad"...

All 2009 RX-8 6 port engines now have 4 Fuel injection nozzles, whereas the 04-08 6 port rotaries had 6 FI Nozzles.
huh? Wait a minute ... you've confused me!

Are you saying the 2009 6 port engine only has 4 fuel injection nozzles and the 03-08 on had 6?

On a side note, I really don't see why you'd buy a new one if you had a series 1, as the improvements on the series 2 are only minor and the car looks ugly in comparison.
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