TR-01 Rotary Engine Compression Tester - Official Group Buy
04-23-2009 | 11:28 AM
#30
Thread Starter
Compression Tester Guy
Joined: Nov 2006
Posts: 93
Likes: 0
From: Houston, TX
-John
04-23-2009 | 12:03 PM
#33
My 8 looks like a Smurf
iTrader: (4)
Joined: Sep 2007
Posts: 1,742
Likes: 0
From: Ottawa, ON, Canada
If we order these now, will we be eligible for software updates when you release them (which I am sure is going to happen at some point for one reason or another)? Can we do the updates ourselves or would we have to ship the units back?
04-23-2009 | 01:12 PM
#36
My 8 looks like a Smurf
iTrader: (4)
Joined: Sep 2007
Posts: 1,742
Likes: 0
From: Ottawa, ON, Canada
Been working in software for 10 years and I've never seen a product go out at 100%. It just doesn't happen. Nature of the beast.
04-23-2009 | 05:08 PM
#39
Compression tests aren't covered under warranty unless they show that your engine needs replacement.
Getting this will give you an engine compression baseline. If you test regularly you'll know if your engine is beginning to fail or not. Knowing that your engine is failing will help you know when to 'gamble' on a compression test by Mazda.
Getting this will give you an engine compression baseline. If you test regularly you'll know if your engine is beginning to fail or not. Knowing that your engine is failing will help you know when to 'gamble' on a compression test by Mazda.
04-23-2009 | 08:20 PM
#41
Thread Starter
Compression Tester Guy
Joined: Nov 2006
Posts: 93
Likes: 0
From: Houston, TX
Done! 
Without going into great detail, the firmware at it's core is very simple. Quite frankly the tester doesn't care what engine it's testing or even if it's an engine for that matter. You can see in one of my early YouTube videos I was using my air compressor and a ball valve to simulate the compression pulses of a rotary engine. The tester happily displayed the 3 separate pulses and an RPM calculated using those pulses. Now, with that said, if a defect were discovered with my firmware then the unit would be repaired under warranty.
At the time of this writing I have 11 units payed for! And in my infinite wisdom I pre-ordered 10 blue LCD's this morning before heading off to work. Even payed to put them on the "fast" boat from China (which unfortunately still isn't very fast
)!
Precisely! And getting my tester through the Group Buy costs only ~50 than 1 compression test from Mazda. Sure sounds like a great deal to me!
Thanks to everyone for getting this underway!
-John
At the time of this writing I have 11 units payed for! And in my infinite wisdom I pre-ordered 10 blue LCD's this morning before heading off to work. Even payed to put them on the "fast" boat from China (which unfortunately still isn't very fast
)!Compression tests aren't covered under warranty unless they show that your engine needs replacement.
Getting this will give you an engine compression baseline. If you test regularly you'll know if your engine is beginning to fail or not. Knowing that your engine is failing will help you know when to 'gamble' on a compression test by Mazda.
Getting this will give you an engine compression baseline. If you test regularly you'll know if your engine is beginning to fail or not. Knowing that your engine is failing will help you know when to 'gamble' on a compression test by Mazda.
Thanks to everyone for getting this underway!
-John
04-23-2009 | 10:14 PM
#44
Super Moderator
Joined: Apr 2005
Posts: 10,869
Likes: 327
From: Australia
How to Perform Compression Test - From Mazda Factory WS Manual Series II RX-8's
1. Remove Engine Cover.
2. Verify that Battery is fully charged.
3. Warm Up Engine.
4. Remove the Trailing or Leading Spark Plug of the front and rear rotors.
5. Disconnect Eccentric Shaft Position Sensor (Crank Sensor).
WARNING: Hot engines can cause severe Burns.
CAUTION: To cut the fuel injection and ignition, make sure the Eccentric Shaft Position Sensor (Crank Sensor) is Disconnected.
TO TEST COMPRESSIONS.
1. Install TR-01 Spark Plug Sensor to the Trailing or Leading side Spark Plug Hole Of The Rotor Housing.
2. Depress the Accelerator pedal fully and crank for 7 seconds or more.
3. Read Compressions and Engine Crank Speed (RPM).
4. Perform the same procedure for the other Rotor Housing.
5. If the compressions is at the minimum or less, or the difference in the chambers and difference in the rotors exceed the specifications, replace or overhaul engine.
SPECS RX-8 2009 Model.
Standard : 830kPA 8.5kgf-cm, 120 PSI @250RPM
Minimum : 680kPA 6.9kgf-cm, 98.6 PSI @ 250RPM
Standard Difference Between Chambers:
Within 150kPA 1.5kgf-cm, 21.8 PSI
Standard Difference in Rotors:
Within 100kPA 1.0kgf-cm, 14.5 PSI
6. Install Spark Plugs (correct heat ranges - Leading or Trailing).
7. Connect Eccentric Shaft Position Sensor (Crank Sensor).
8. Install Engine Cover.
As I do not have the Series I Factory Workshop Manual I can't verify the details are the same (I would assume they are as the internals (Seals, ETC) of the 2 RENESIS's have not changed).
2. Verify that Battery is fully charged.
3. Warm Up Engine.
4. Remove the Trailing or Leading Spark Plug of the front and rear rotors.
5. Disconnect Eccentric Shaft Position Sensor (Crank Sensor).
WARNING: Hot engines can cause severe Burns.
CAUTION: To cut the fuel injection and ignition, make sure the Eccentric Shaft Position Sensor (Crank Sensor) is Disconnected.
TO TEST COMPRESSIONS.
1. Install TR-01 Spark Plug Sensor to the Trailing or Leading side Spark Plug Hole Of The Rotor Housing.
2. Depress the Accelerator pedal fully and crank for 7 seconds or more.
3. Read Compressions and Engine Crank Speed (RPM).
4. Perform the same procedure for the other Rotor Housing.
5. If the compressions is at the minimum or less, or the difference in the chambers and difference in the rotors exceed the specifications, replace or overhaul engine.
SPECS RX-8 2009 Model.
Standard : 830kPA 8.5kgf-cm, 120 PSI @250RPM
Minimum : 680kPA 6.9kgf-cm, 98.6 PSI @ 250RPM
Standard Difference Between Chambers:
Within 150kPA 1.5kgf-cm, 21.8 PSI
Standard Difference in Rotors:
Within 100kPA 1.0kgf-cm, 14.5 PSI
6. Install Spark Plugs (correct heat ranges - Leading or Trailing).
7. Connect Eccentric Shaft Position Sensor (Crank Sensor).
8. Install Engine Cover.
As I do not have the Series I Factory Workshop Manual I can't verify the details are the same (I would assume they are as the internals (Seals, ETC) of the 2 RENESIS's have not changed).
04-24-2009 | 12:45 AM
#46
Thread Starter
Compression Tester Guy
Joined: Nov 2006
Posts: 93
Likes: 0
From: Houston, TX
1. Remove Engine Cover.
2. Verify that Battery is fully charged.
3. Warm Up Engine.
4. Remove the Trailing or Leading Spark Plug of the front and rear rotors.
5. Disconnect Eccentric Shaft Position Sensor (Crank Sensor).
WARNING: Hot engines can cause severe Burns.
CAUTION: To cut the fuel injection and ignition, make sure the Eccentric Shaft Position Sensor (Crank Sensor) is Disconnected.
TO TEST COMPRESSIONS.
1. Install TR-01 Spark Plug Sensor to the Trailing or Leading side Spark Plug Hole Of The Rotor Housing.
2. Depress the Accelerator pedal fully and crank for 7 seconds or more.
3. Read Compressions and Engine Crank Speed (RPM).
4. Perform the same procedure for the other Rotor Housing.
5. If the compressions is at the minimum or less, or the difference in the chambers and difference in the rotors exceed the specifications, replace or overhaul engine.
SPECS RX-8 2009 Model.
Standard : 830kPA 8.5kgf-cm, 120 PSI @250RPM
Minimum : 680kPA 6.9kgf-cm, 98.6 PSI @ 250RPM
Standard Difference Between Chambers:
Within 150kPA 1.5kgf-cm, 21.8 PSI
Standard Difference in Rotors:
Within 100kPA 1.0kgf-cm, 14.5 PSI
6. Install Spark Plugs (correct heat ranges - Leading or Trailing).
7. Connect Eccentric Shaft Position Sensor (Crank Sensor).
8. Install Engine Cover.
As I do not have the Series I Factory Workshop Manual I can't verify the details are the same (I would assume they are as the internals (Seals, ETC) of the 2 RENESIS's have not changed).
2. Verify that Battery is fully charged.
3. Warm Up Engine.
4. Remove the Trailing or Leading Spark Plug of the front and rear rotors.
5. Disconnect Eccentric Shaft Position Sensor (Crank Sensor).
WARNING: Hot engines can cause severe Burns.
CAUTION: To cut the fuel injection and ignition, make sure the Eccentric Shaft Position Sensor (Crank Sensor) is Disconnected.
TO TEST COMPRESSIONS.
1. Install TR-01 Spark Plug Sensor to the Trailing or Leading side Spark Plug Hole Of The Rotor Housing.
2. Depress the Accelerator pedal fully and crank for 7 seconds or more.
3. Read Compressions and Engine Crank Speed (RPM).
4. Perform the same procedure for the other Rotor Housing.
5. If the compressions is at the minimum or less, or the difference in the chambers and difference in the rotors exceed the specifications, replace or overhaul engine.
SPECS RX-8 2009 Model.
Standard : 830kPA 8.5kgf-cm, 120 PSI @250RPM
Minimum : 680kPA 6.9kgf-cm, 98.6 PSI @ 250RPM
Standard Difference Between Chambers:
Within 150kPA 1.5kgf-cm, 21.8 PSI
Standard Difference in Rotors:
Within 100kPA 1.0kgf-cm, 14.5 PSI
6. Install Spark Plugs (correct heat ranges - Leading or Trailing).
7. Connect Eccentric Shaft Position Sensor (Crank Sensor).
8. Install Engine Cover.
As I do not have the Series I Factory Workshop Manual I can't verify the details are the same (I would assume they are as the internals (Seals, ETC) of the 2 RENESIS's have not changed).
-John
04-24-2009 | 02:56 AM
#47
04-24-2009 | 03:30 AM
#50