compression results
#1
compression results
So I have been looking around for an rx8 r3 ever since I sold my last rx8 and found a 2009 rx8 r3 with 29k miles and 1 owner.
I asked the dealership to do a compression test and these are the results.
Rotor 1
7.4
7.3
7.4
Rotor 2
7.5
7.5
7.4
Rpm 268
Any advice on this would help me decide if I should go for it or not. Still has warranty until Oct 9 2017. Service tech said it would be higher if it was ran longer.
Thanks!
I asked the dealership to do a compression test and these are the results.
Rotor 1
7.4
7.3
7.4
Rotor 2
7.5
7.5
7.4
Rpm 268
Any advice on this would help me decide if I should go for it or not. Still has warranty until Oct 9 2017. Service tech said it would be higher if it was ran longer.
Thanks!
#2
The opposite is true, which is why you start have hot start problems as the seals wear down. The rotor housing expand with heat and the seals, having worn down, don't make good contact any more.
#3
Dark Moderator
iTrader: (18)
It does take time for the seal to wear their groove into the housings and irons and seals. That's why a fresh motor needs to be "broken in" for X amount of miles. Once that milestone has been reached you slowly start to go down due to the expansion of metal and the seals inability to bridge that gap anymore.
However that break in period is WAY before 20k+ miles.
More like 4-5k
If it were me, I would keep looking.
That's just me.
Travis
However that break in period is WAY before 20k+ miles.
More like 4-5k
If it were me, I would keep looking.
That's just me.
Travis
#5
Here is a link to the car.
http://auto.com/cars/Mazda-RX-8-R3-2...990402042#info
Thanks for the responses. I just miss having an rx8 lol. After selling my 2004, I figured I should go for an r3.
http://auto.com/cars/Mazda-RX-8-R3-2...990402042#info
Thanks for the responses. I just miss having an rx8 lol. After selling my 2004, I figured I should go for an r3.
Last edited by ShadowDragon78; 07-03-2015 at 06:39 PM.
#6
Here is a link to the car.
Used 2009 Mazda RX-8 R3 Coupe in Arlington, TX near 76014 | JM1FE174990402042 | Auto.com
Used 2009 Mazda RX-8 R3 Coupe in Arlington, TX near 76014 | JM1FE174990402042 | Auto.com
#8
40th anniversary Edition
Just remember this is a six year old car with marginal compression numbers for $17,000+. I would pass on this one. Also unless you are a person of very average build, those recaro seats will become very uncomfortable on any long trip. (A few of my R3 owning friends have grown to hate those seats)
#12
40th anniversary Edition
It is not just the tightness of the side bolsters, but also a couple of R3 owners have told me that the seats themselves don't have much comfortable bottom support and NO lumbar support for anything beyond a short drive. On paper these seats seemed a good idea to go along with the suspension tweeks on the R3, but folks buying them also need them to be comfortable as daily drivers, unless you are buying a dedicated track car. One used R3 owner I know has had one driver seat side bolster become loose from the previous owner brushing against it getting in and out. This R3 owner loves pretty much everything else about the car, and he wanted all the improvements and advantages of the Series 2, but he wishes he had some lumbar support and some more comfort in the seats. This R3 owner is of average build.
#13
Yep, I'm the other dude who was looking at it, and I posted about it separately.
Not happy with the way the dealer handled everything. First, they insisted that the car was not under warranty. I told them it did, and Mazda even called them and explained it to them (which was some seriously awesome customer service from Mazda!).
But the dealership didn't call me back after all that (to say, "yep, it is under warranty, do you want to buy it"). I guess they figured I was a potential pain in the *** customer, so they didn't want to follow up with me!
Anyways, moving on. Hopefully I'll come across one eventually with that kind of mileage but better compression — and from a dealership that knows the warranty on the RX8 and knows how to do a compression test properly.
Not happy with the way the dealer handled everything. First, they insisted that the car was not under warranty. I told them it did, and Mazda even called them and explained it to them (which was some seriously awesome customer service from Mazda!).
But the dealership didn't call me back after all that (to say, "yep, it is under warranty, do you want to buy it"). I guess they figured I was a potential pain in the *** customer, so they didn't want to follow up with me!
Anyways, moving on. Hopefully I'll come across one eventually with that kind of mileage but better compression — and from a dealership that knows the warranty on the RX8 and knows how to do a compression test properly.
#15
Registered
iTrader: (1)
But I agree that you should look for an RX-8 with better compression.
#17
Good luck finding better compression on a R3. All the R3s I've seen tested are like that or lower. You won't get any issues until compression drops below 6 anyway. Nothing wrong with those results IMO.
#19
Failing? If you mean by Mazda's 6.9 standard then yes however I know a few rebuilders in the UK and they say that R3s have lower compression than the S1. They have tested many. Also, ported S1 engines with only like 8k on them can be as low as 6.9. I've seen a S1 with 20k with 6.9 results, no issues starting hot, 1-2 seconds.
If I had that R3, with regular oil changes, beeping and premixing, it should be good for at least another 30k-40k. It would take me more than 10 years to do that mileage.
If I had that R3, with regular oil changes, beeping and premixing, it should be good for at least another 30k-40k. It would take me more than 10 years to do that mileage.
#20
Registered
iTrader: (1)
Failing? If you mean by Mazda's 6.9 standard then yes however I know a few rebuilders in the UK and they say that R3s have lower compression than the S1. They have tested many. Also, ported S1 engines with only like 8k on them can be as low as 6.9. I've seen a S1 with 20k with 6.9 results, no issues starting hot, 1-2 seconds.
If I had that R3, with regular oil changes, beeping and premixing, it should be good for at least another 30k-40k. It would take me more than 10 years to do that mileage.
If I had that R3, with regular oil changes, beeping and premixing, it should be good for at least another 30k-40k. It would take me more than 10 years to do that mileage.
I would not touch a nearly failing engine for that money.
#21
They use the same specs but that doesn't stop the fact that on average S2s test lower than S1s. This is coming from multiple reputable rebuilders who have tested many R3s. That engine still has lots of life left in it. In no way is it is almost failing other than the Mazda standard of 6.9 @ 250 rpm. It won't show any issues or symptons until compression drops well below 6. Then you could say it's almost failing. Still seen plenty of mid/high 5s running without any issues starting hot or in performance.
That said, R3s go for about the equivalent of $9,000 or less here and a ported rebuild is about $4500 so there's less at stake.
As I said, good luck finding an R3 with much better results than that. That car will be fine for a long time with proper care.
That said, R3s go for about the equivalent of $9,000 or less here and a ported rebuild is about $4500 so there's less at stake.
As I said, good luck finding an R3 with much better results than that. That car will be fine for a long time with proper care.
#22
#25
SARX Legend
iTrader: (46)
They use the same specs but that doesn't stop the fact that on average S2s test lower than S1s. This is coming from multiple reputable rebuilders who have tested many R3s. That engine still has lots of life left in it. In no way is it is almost failing other than the Mazda standard of 6.9 @ 250 rpm. It won't show any issues or symptons until compression drops well below 6. Then you could say it's almost failing. Still seen plenty of mid/high 5s running without any issues starting hot or in performance.
That said, R3s go for about the equivalent of $9,000 or less here and a ported rebuild is about $4500 so there's less at stake.
As I said, good luck finding an R3 with much better results than that. That car will be fine for a long time with proper care.
That said, R3s go for about the equivalent of $9,000 or less here and a ported rebuild is about $4500 so there's less at stake.
As I said, good luck finding an R3 with much better results than that. That car will be fine for a long time with proper care.
Please stop spreading bullshit.