You are following the right path in regard to inspection.

A low mileage 2005 could be actually worth that, so if you are comfortable with the price you won't be getting ripped off.

 

Just wanted to post back with the compression and inspection results from the dealer:

#1 6.4, 6.5, 6.6

#2 6.7, 6.9, 6.8

@182 rpm ~482ft above sea level

The only thing they came up with during the inspection was a cracked tow hook.

 

A speedometer related question here.

Automatics use VSS in the trans, Manual uses speed sensors at each wheel via ABS. This I know

Can anyone explain the chronological order of the signal from ABS speed sensors to speedometer readout? I can't find much on this even while looking at the electrical diagrams

Example:
Sensors take pulse readings → Send to ABS → ABS sends one reading to PCM → PCM sends info via CANBUS to speedometer.

IS THIS CORRECT?

Also what is the function of the Speed reading (G/R) wire in the Audio Head Unit harness?

 

Ill have to do the conversion, but that engine looks acceptable. That starter is nearly dead though. Expect LONG crank times and lots of battery stress. Will flood easily, any ignition weakness and you will flood ridiculously easy.

Unsure of the first part of your question, but id guess the speed wire to the audio is for a speed sensitive volume. Mazda uses the hardware across many cars, and the speed adjusted volume was becoming standard on many models about then. My 2005 MSM has it, for example.

 

Main reason for the question is if I swap a t56 tranny and choose to use its vss where in line would you splice in its pulse reading?

 

This is a pretty advanced question

I don't have an answer for you, and you probably won't get one in this thread. Perhaps start a thread with the question in Tech, Aftermarket, or Major Horsepower?

 

I have noticed slow cranks (no issues starting), will probably replace it here pretty soon. Just dropped a lot of money on coils, wires, plugs and fluids (engine, tranny and diff) so it will have to wait till my funds recover.

 

Im trying to hook up an amp and ive taken out everything i needed to and realized i need a "hi-lo level converter" I have all the cords besides that, everywhere I find the right thing i need, but it comes with wires I already have and it is EXPENSIVE! is there anybody selling just the converter? PM me if you have one, or know where I can buy one!
Sorry for posting in this thread, but I cant find the thread talking about hookinh up an amplifier, and I figured RIWWP could help me!

 

yo when can I make a thread I need to sell ****.

Posted From RX8Club.com Android App

 

The restriction on new threads is in place if you have under 10 posts AND less than 30 days. 1 more post and the restriction will be lifted about an hour after your next login.

I do recommend that you don't actually post feces for sale. It's not rotary related.

If that is just your way of describing what you have for sale, I recommend re-phrasing it to be more appealing.

 

Like.

 

So...I have been wondering. The change they introduced to 2009+ S2 engines...Do they make a difference? From what I gather from the forum and real world it seems that if I take moderate care of my engine I can expect about 100k from it. Is the number bigger for S2 engine with higher oil pressure and center injector?

 

It's hard to call. The general consensus is that yes, it makes a big difference. The problem is that there were more 2007 RX-8s than all of Series2 combined. Add that newer RX-8s are less likely to be daily driven (usually 2nd/3rd owner cars are), the mileage on them is on average still fairly low.

This means that we really don't have much in the way of long term reports from Series 2. There are a few reports of engine replacements still, but it's hard to tell if it's at the same subjective (highly subjective) rate that Series 1 appears to be at.

 

Got ya...I guess only time will tell then. :P

 

Just a follow up on my air intake: I passed emissions no problem, no cel.

 

hey guys, im about to buy a 2004 rx8 with 80,000 miles from a dealership ..
the car is worth $10,000 .. now I asked about the compression test and they said that I would have to pay $150 for it to be done.. I feel like I want to just in case is in good condition.. any opinions on that? Also, they cant check the apex seals since its a used car and they dont want to bother with it.. now they are selling me a warranty with the car for like $1000 for 2 years I believe..
the car is amazing on the inside and out (very well maintained physically)
what do you guys think? i mean i love it but never messed with a mazda but ready to take care of it

thanks a million and hopefully i will join the rotary club

 

Yes! Always do a compression test on a rotary car. Post the results here when you get them so we can tell you if your car is healthy or not.

 

Have you read though the new owner's thread? If not, please do so.


Yes, always get a compression test before buying a used rotary.

 

As my colleague said , always get a compression test done when buying any RE car..

However, just be aware RE Compression Testers are not the same as a banger piston engine unit (never have been)..

Unless you can be shown the actual tester I would not trust the results as they are meaningless.

So if you have a suitable RE shop nearby or a Mazda Dealer or someone who either has the Mazda portable CT, or the larger diagnostic units used inside Mazda Dealerships, then you are wasting your money.

I am not suggesting 'the dealer' selling you the RX-8 is bad, just be aware...it 'the dealer' a Mazda one argentinian?

This is the current OE Mazda portable unit.
https://www.rx8club.com/attachments/...13-edition-jpg

 

Hey guys, I'm going today with 2 friends to check it out ( they own rx8 and will help determine from looking/listening to the car and test driving it ) .. is there anything I should keep in mind when there? Like to look for something or listen? They said the compression test is done in the shop and no customers allowed..what's a good compression for the car? Darn I need to keep learning about this car.. well thanks so much for everything so far guys really looking forward to owning my very own :D

 

Have you read though the new owner's thread? If not, please do so.

There is a section regarding the compression test, passing scores, how it's done, the importance, etc... There is also a section of RX-8 specific things to look for on used cars.

 

Do rotary engines have port timing..in a sense that you would say a two stroke has port timing with intake ports exhaust ports and auxilary ports( i know the renesis doesnt have auxilary ports...)

But its basically how long the rotor is over its intake track and as it passes the exuast..

 

Yes. Timing isn't flexible however, and is 100% determined by the position of the ports. The changing shape of the curve of the rotors edge opens or covers the port consistently, regardless of engine speed.

Power and emissions for future rotary designs will inevitably involve the port timing. If Mazda can figure out how to have variable port timing, it would be a huge leap forward.

 

like hydraulically controlled plate that moves up or down the housings. I'm sure mazda can do this no prob. but how would this affect power/emissions

 

Would different angles change power output? If i raise an exhaust port on a two stroke by 1mm im upping the rev range a bit.


Is this a theoretical way of looking at the ports in a rotory?