OK, by my count that is 8 or 9 paid... c'mon, only 2 more people!!! I want this thing soon!

Updated first post. We're off to a great start!!
-John

Would this work on the 16x?

The chamber is different. I'm thinking it would have to be calibrated for that.

PayPal sent for one more!

It'll work just fine, just need the exact size of one rotor face and the compression ratio. Which reminds me...I've got correction factors in the original thread, I need to copy and paste them into the GB thread! Thanks!
-John

Received, did I do your personal message right?
-John

just make it all lowercase....pcoppinger...thanks

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?

payment sent

what updates? the correction factor is just a table you can use to calculate by hand...

Just saying most new products have a software revision within a few months of their release. Certain use cases not considered, bug with certain engine setups, etc.

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.

this is pretty cool. I'm still under warranty tho

Dam, need one more buyer so Twisted can get started.

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.

I'll likely be ordering as soon as I get a reply to my PM :)

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 :tear: )!
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

hw long will this group buy last?

I have payed for but not received my compression tester yet. Is there some issue?



















I JOKE! I TEASE!

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).

Just watched TR's videos, and a "related" one that popped up of a Japanese company using the Mazda one on a '92 FD. I'm absolutely in. Ordered.

Thank you Ash! I've been trying to word up a step-by-step guide, but efficiently teaching someone to do something is not one of my strong suits. :-( I like your guide! Those numbers didn't click the first time you showed them but now looking at them more closely, they kind of scare me! 21.8 psi acceptable difference between chambers? My video of a 13B-REW with a chipped and cracked apex seal shows only a ~15psi difference! Sure that engine would run, but I think it'd be awfully lumpy.
-John

funny,

my check is in the mail, but i got mine.

the color is wrong. and the screen on boot says.

no compression for carbonrx8. FAIL!

how odd is that?

:)

beers :beer:

I knew I missed some posts.
Carbon and Swoope, you guys crack me up! :lol:
r0tor - I'm planning to sell them for 2 months at the GB price.
-John

There is always ONE...isn't there...;)

yes,

and thanks for covering are butt in the up over..

btw.. i almost dont think i am sorry for the little lock and load / michael / dave issue!

sorry off topic.. :)

beers :beer: