POLL: How many miles on your original engine
NOW FIRST OF ALL THIS IS ON THE ORIGINAL MOTOR WITHOUT REBUILD/REMAN
IF THE MOTOR HAS BEEN POPPED APART PLZ DO NOT POST IT ON THIS, THANKS Ok so since my motor finally decided to go and was basically undrivable :crying:,tho i could have gotten another 100 or so miles out before it just stopped cranking,:wallbash: I was thinking, HOW MANY MILES DID OTHERS GET OUT OF THE ORIGINAL ENGINE??? SO just hit the answer in the poll that best fits your mileage and post a description! THANKS GUYS!!:bowdown: |
How is this any different that this existing thread?
https://www.rx8club.com/rx-8-discuss...engine-165164/ |
sigh, another one.
https://www.rx8club.com/rx-8-discuss...essage-248775/ https://www.rx8club.com/rx-8-discuss...survey-202333/ https://www.rx8club.com/rx-8-discuss...-144669/page3/ https://www.rx8club.com/series-i-tro...ents-mt-73517/ https://www.rx8club.com/rx-8-discuss...e-98200/page2/ etc... there was one like 2 weeks ago too. There are a number of problems with ANY poll or survey like this: 1) The people that will see this poll are already more likely to have had problems with their 8 2) There are numerous ways that the engine can fail that have NOTHING to do with the engine mileage. For example blowing the seals because a dealer put 87 octane in it. Thermostat sticking and popping a coolant seal. Boosting the engine and doing something wrong. Dropping a screw into the intake and turning the engine over anyway. Running it out of oil. Fuel pump failure that creates a damaging lean spike. Sitting without running for a year or more and the seals rusting in place. Driving through a deep puddle with a low-pickup cold air intake and breaking stuff with the water ingestion. Cat failure that over-stresses the engine. Getting a rock through an oil cooler while at speed. Need I go on? (Yes, I have seen examples of every single one of these) 3) Many owners have NO idea if they are on the original engine or not, as they bought 3rd party and haven't done research to find out. 4) There were plenty of engine replacements that WERE NOT engine failures. Have fun with the poll, but please don't think you will draw any conclusions from it. |
Originally Posted by alnielsen
(Post 4535130)
How is this any different that this existing thread?
https://www.rx8club.com/rx-8-discuss...engine-165164/ so i created this to make the data easier to collect, |
You won't get actual "data". People buy and sell their cars. They come and go from the site. Not all RX8 owners come to the site.
These threads turn in to people looking for a shoulder to cry on. |
well written, i guess i hadnt thought it out as much and didnt pick up on the multiple other threads that are the same,
my bad guys. I SAW NONE with the info i was trying to collect none that went over 100k on poll and etc. |
Check out this: https://docs.google.com/spreadsheet/...thkey=CIKRnsoL
Far more information about engine failures than anyone else tries to collect, but I still got less than 100 responses, and it still doesn't enable anyone to draw any conclusions. |
i understand that, its more or less a *members, how many miles is/was your engine at? and a did mine last the longest?? JUST a general overall estimation on the amount of people on here getting real life mileage out of the car without replacing/rebuilding it. I myself have never had a car to blow up like this, and render it useless, and i have owned fords with 200k+
new boosted cars, bikes,trucks and all, all with some mods and some with all mods (lol) I dont care that the car died, i enjoyed it didnt get attached and now im parting it out to recoup |
Not to mention the thread title doesn't make sense. I have 143,000 miles on my 8. But that means nothing when you consider it took 4 engines to get there and that the failure of each engine was a bit different.
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I bought a 2002 Corolla brand new. It's engine blew at 62,000 miles. Shattered, lots of damage, undriveable.
At 96,000 miles, my RX-8's engine was diagnosed as low compression, still completely driveable. My 1999 Miata had TWO engine failures. A low sampling rate skews the results quite a bit, and if I was to take my own experience, piston engines are complete and utter garbage. (well, they still are even if they don't blow up, and even if I'm the one blowing them up) |
It seems the google doc will not load for me, but then again mike i dont think what im looking for is details or a technical analysis of this all i just want to say
MY CAR HAD 151,364 MILES WHEN SHE DIED ON ORIGINAL MOTOR BEAT THAT!!!! lol and see if there are guys on here pushing those limits and getting the goods from the not so good renesis, but then again im not a rotary guy, im just a weekend warrior a car nut and a backyard mechanic, scraping by and trying to live the best i can. |
Originally Posted by 9krpmrx8
(Post 4535143)
Not to mention the thread title doesn't make sense. I have 143,000 miles on my 8. But that means nothing when you consider it took 4 engines to get there and that the failure of each engine was a bit different.
THO I UNDERSTAND WHAT YOU ARE SAYING < IT DOESNT MATTER TO THIS POLL, 143k on a few engines is virtually sickening, i would have stopped after the second, and prolly the 1st. IF i knew for sure another engine would last 150k+ id through one in today, but since thats impossible she's dead to me |
This is the list of data points I collected:
Timestamp Engine Response Engine Configuration Transmission Engine Build Year Engine Build Month RX-8 Model Year Chassis Mileage - Start Chassis Mileage - End Engine Builder Engine End Cause Primary Cause Diagnosis Source Climate Cold Usage Hot Usage Shift Point - Stop and Go Shift Point - Cruising Shift Point - Track and Canyon Shift Point - Casual Driving% - Stop and Go Driving% - Cruising Driving% - Track and Canyon Driving% - Casual Typical MPG Highest MPG MPG Trend Highest MPG Owner Care Oil Weight - Cold Temperatures Oil Weight - Moderate Temperatures Oil Weight - HotTemperatures Synthetic vs Dino Standard vs Diesel Oil Change Interval Oil Burn Rate Oil Change Source Oil Filter Replacement Engine Break-in Premix Usage Premix Quantity Cooling Modifications Lubrication modifications Power modifications Other modifications Engine Flooding Catalytic Converter failure Coil failure Plug failure Fuel pump failure O2 Sensor failure Thermostat failure Water pump failure Decarb MSP-16 |
Chris, read this for some food-for-thought: Audi, MINI Among Those with Highest Engine Failure Rates | AutoGuide.com News
Do a search for "Ford V6 engine failure" for something else to think about. |
good god mister technical , you went ;legit but with 100 out of the many thousands of owners its still not perfected,
AND CAN YOU CHANGE THE TITLE OF MY THREAD, REMOVE THE "8" AND PUT ORIGINAL ENGINE? THANKS!! |
Changed.
NOW CAN YOU TURN OFF THE CAPS LOCK? WE DON'T LIKE BEING YELLED AT. |
oh believe me i am well aware of the rate of failure on many engines i have rebuild several piston motors and have witnessed a lot of destruction , i am pointing none out to be "the worst"
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i have a broken finger and it keeps hitting the caps lock when im typing LOL
I AM SORRY , ha i just had to that time "well thanks a lot you son of a bitch"-harry soloman ^ anyone over the age of 20 should know this quote |
Chris, just so I'm clear. The problem we have with polls like this is that they tend to be more mis-informative than informative, but people like to take them as fact anyway.
A better set of polls would be: - How many miles on the original engine before your cooling system failed and killed it - How many miles on the original engine before your fuel pump failed and killed it - How many miles on the original engine before your cat failed and killed it - How many miles on the original engine before outside damage killed it - How many miles on the original engine before it was replaced on misdiagnosis - How many miles on the original engine before you killed it from negligence - How many miles on the original engine before you killed it from doing something stupid - How many miles on the original engine before you killed it from a bad set of modifications - How many miles on the original engine before you killed it while racing Unless the reasons for engine failure are split out, the results can't even point a finger in the correct direction (My survey is 3 years old, I would have a different set of questions if I were to re-do it today, but I don't see enough value in taking that effort) |
Originally Posted by RIWWP
(Post 4535151)
Chris, read this for some food-for-thought: Audi, MINI Among Those with Highest Engine Failure Rates | AutoGuide.com News
Do a search for "Ford V6 engine failure" for something else to think about. and i find this data useless because if say, toyota made 1.5m engine and 500,000 failed its 33.3% well audi made 200,000 engines and 50,000 failed then failure is 25% but if you take the first 100,000 from both and they are like this toyota, 50,000 failed out of first 100,000 then its 50% and audi 10,000 failed out of first 100,000 then its 10% and with new powerplants new cars and all coming out constantly, The lack of a better term, BUGS are prevalent in the first batch of the new powerplants and vehicles, many im thinking to much into that one but then again if a honda civic bursts into flames on the highway, its like eh , buy another honda, BUT if a ferrari 458 italia does the same everyone in the world knows and its like OMG WTF HOW THE HELL< NOOOOOOOOOOOOOOOOO :rollingla but idk im just a backwood boy |
understood,
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Originally Posted by chris_04_rx8
(Post 4535158)
and i find this data useless
because if say, toyota made 1.5m engine and 500,000 failed its 33.3% well audi made 200,000 engines and 50,000 failed then failure is 25% but if you take the first 100,000 from both and they are like this toyota, 50,000 failed out of first 100,000 then its 50% and audi 10,000 failed out of first 100,000 then its 10% and with new powerplants new cars and all coming out constantly, The lack of a better term, BUGS are prevalent in the first batch of the new powerplants and vehicles, many im thinking to much into that one but then again if a honda civic bursts into flames on the highway, its like eh , buy another honda, BUT if a ferrari 458 italia does the same everyone in the world knows and its like OMG WTF HOW THE HELL< NOOOOOOOOOOOOOOOOO :rollingla but idk im just a backwood boy You are correct on all points. The survey I linked is just as useless :) It's the inherent problem when anyone takes multi-dimensional data points and tries to make a single dimensional conclusion from it. Humans are far too complex for it to ever be truly meaningful. Any proper study has to take every other possible factor and make them identical, where the only thing changing is the value that you are trying to measure. For example, to get a true read on Renesis mileage, you would have to take a statistically significant number of engines that operated in the exact same rev and load range, turned the same revs, in the same ambient temperature/humidity/altitude, with the same oil, gas, and coolant source, the same maintenance schedule, same tune, the same sensors, the same exhaust flow, the same engine build measurements, .... It's largely impossible. It is actually possible, but the financial cost would be astronomical and the benefit would be negligible. |
Originally Posted by chris_04_rx8
(Post 4535148)
HENCE THE "YOUR ORIGINAL MOTOR" PART OF THINGS, I WANT ONLY THE MILEAGE OFF OF IT,
THO I UNDERSTAND WHAT YOU ARE SAYING < IT DOESNT MATTER TO THIS POLL, 143k on a few engines is virtually sickening, i would have stopped after the second, and prolly the 1st. IF i knew for sure another engine would last 150k+ id through one in today, but since thats impossible she's dead to me There are a few high mileage (120k +) original engine RX-8's but they are extremely rare. And sure you will have those success stories but they are rare, just like the stories in the Honda Civic world of premature engine failure. But getting 100k out of a Renesis is fairly common. But the facts are that Mazda has rebuilt thousands of Renesis engines and that is not good no matter how you look at it. But they did give an 8 year 100k warranty so we really have no room to bitch. I don't feel sorry for people who buy 8-10 year old RX-8's and then bitch when they have problems. No model of car is free of issues at that age. And while the Renesis may not be the most reliable engine, the RX-8 as whole seems to hold up pretty well. Just look at this 10+ year old beauty :) |
right, \
my 92 f150 hits the mud often has 131k and runs like a champ. my 94 mustang gt ran great all the way through 200k traded it on a 2012 genesis coupe 2.0t rspec and drove the piss out of it to 30k with a larger turbo, exhaust, injectors, piggyback, ecu flash, etc etc. and never missed a beat, i usually tend to have decent luck with engines and cars but th rx8 lasted me 6 days, i have now bought a 3.8 firebird that seems to be crap, and my truck just isnt a daily driver. |
To be fair, your RX-8 has lasted at leas 8 years (or more, I forget the year).
The prior owner just dumped it 6 days before death, and you bought that result. |
right, hey im kinda flabbergasted that the car was on original un touched engine with 150k+
2004 model. early build date. but in relation to the year my 92 is still kicking, tho the engine has been used and tweaked for many a decade. |
And I'm sure your 94' Mustang engine ran great but based on my experience with 90's era Fords I am sure just about everything else on the car was non functional.
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lol my stang functioned perfectly, had no problems beyond the oem stuff, now the speedo was off due to the 4:10 ring/pinion. and the rag top was replaced due to age, other than tune ups there was nothing wrong with her when i traded her in. It was a one owner when i got her and had all of the receipts from day one with everything from window sticker to original tag.
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the 92 f150 on the other hand has had a clutch at 125k and manual locking hubs at 120k plus at 130k a fuel pump, but thats service parts to me, at over 100k its to be expected, and should have been done closer to 60k
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^ for the RX-8, the engine falls into that category. It's just another part, and replacing it is to be expected.
Why is the engine considered of more importance than anything else that would also disable the car? Especially when there is a 100k warranty on the engine, but not on the ECU, brakes, transmission, axles, driveshaft, fuel pump, etc.... It's a common perception, but not logical if you think about it. |
right but those parts werent nonfunctional just felt they needed the servicing, just like when i changed the entire cooling system on the rx8, because of one thing i tend to OVERfix things i guess lol
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Well weekend bump. For all u 9-5'er s. I envy u lol
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Originally Posted by RIWWP
(Post 4535230)
...Why is the engine considered of more importance than anything else that would also disable the car? Especially when there is a 100k warranty on the engine, but not on the ECU, brakes, transmission, axles, driveshaft, fuel pump, etc....
A service writer at a Honda dealer used the "The engine is still good" line when he tried to sell me a $900 brake job on my then 20 year old Accord. Ken PS - I voted inthe poll, just so that a couple of years from now folks can come upon obsolete data. |
Original engine with 40k miles...
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My rx8 GT 6 speed
Engine replaced at 50,000 miles by its first owner Car now has 89000 miles. Gets 21mpg and 19mpg with the a/c on.thanks to 4.1 gearing :) also did ls2 coils |
Originally Posted by ghost1000
(Post 4536155)
My rx8 GT 6 speed
Engine replaced at 50,000 miles by its first owner It's not an original engine then... :icon_no2: |
52,000 miles on the original engine. Getting a compression test done next month to see where my engine currently stands. Car still pulls strong after putting about 20,000 miles on it since we first bought the car from the first owner. The car fires up instantly within a second or two every time, even after numerous sessions at the track around 102 degrees back when I still ran stock ignition coils which was a couple of months ago. I guess it's safe to assume that my engine is still healthy. (Knock on wood)
Currently using Idemitsu premix 0.5 oz. per gallon of gas. Oil is always topped off to full along with oil changes every 3,000 miles with Castrol GTX 5W-30 Hoping for another 50,000. Posted From RX8Club.com Android App |
Its not whether they are good its what's your experience of longevity of the original manufacture installed engine. I'd buy another rx8 with a replaced engine in a heartbeat for a decent price. My firebird has 198860 miles original engine and the head gasket has started a minor leave by the wgr valve on the drivers side. Still functional with really no problems but at 198300 is when I would count it as gone. I will be rebuilding it or replacing with a 6.0/ls1 sooner or later.
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