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General Rb25det Life Expectancy... 10char Rolf Lol +10!


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Hey, :D

Just a quick question. How long can one expect an RB25det to last? This pe-tic-ala RB25det's Odo was recorded at 72,500km on Dec 31st 2004. Today, it reads 99,800km (timing belt label stamped at having been changed at 72,000kms). So it has had a few kms added. However, it has been treated rather delicately these past ~25k kms. Infact, it has only ever been taken to 7000rpm on two occasions and hardly ever went above 5000rpm. Also, the level of PSI running through the turbo hasn't ever changed as far as I'm aware (as in, before I bought it). Always remaining at standard levels (a mind-boggling 8PSI? If I remember correctly). Infact, pretty much everything on the car in standard. The only modified part is an exhaust (3" from Cat, HKS of some sort). This car hasn't ever given signs of dying. Not a single engine issue, no oil problems etc. Oil continually changed at or around the 7-8k kms mark.

Would it be unreasonable to expect this car to continue without issue for another 30,000kms? Of course, a 100k service is due and will be carried out shortly. Or do Jap imports (the turbo in particular) begin to have issues around the 100k kms mark? :S There just seems to be a considerable amount of people who feel 100k kms is the end for Jap car. :|

Andrew.

it depends how you drive it... if you take care of it she'll last you forever... keep the boost low and dont thrash the shit out of it and it should last you... there would be alot more involved in regards to maintenance but aslong as you keep an eye on all parts of the motor you should be fine... after all what things need the car to run ? compression, spark and fuel/air... come round to your 100k service id be doing a leagakge test and if you can get on of those bore microscopes to have a look at the condition... change the spark plugs (of course) and maybe get your injectors cleaned out while your doing it... if you dont have any trick hardware on you computer i'd be resetting it to kil any gremilns hiding in your electric system

not at all mate i know several ppl with cars that were thrashed b4 they bought them and continued to be thrashed afte rthey bought them and they were goin strong 120,000kms +

Oil changes should be at about 5-6k kms. 7-8k kms if you doing highway stuff.

Provided you arent running lean or getting predetonation your engine should last till around 250-300 k kms or more.

If the timing belt snaps its goneski, same with if an idler bearing etc seizes. Unforseen things can happen but unlikely. Helps if you can service your own car or know a good mechanic.

Good idea to throw it on the dyno for a power run (about $50) and check the 02 sensor is taking care of the closed loop (AFR 14.7)

Dont worry so much. Mine has 120k on it and not a sign of probs.

My old corolla which I revved over 7k each day was sitting on 230k kms without any trouble at all

Edited by benl1981
There just seems to be a considerable amount of people who feel 100k kms is the end for Jap car. :|

Rubbish, my R31 motor had 150k kms on it and it had a hard life after landing in Aus. The guy I bought it off boosted it up and drove the pants off it, sold it to me and I continued to drive the pants off it, then put an R33 turbo on (as the old one was starting to put a bit of oil in the intake piping) and then drove the pants off it some more. The engine was religiously serviced with good (Motul) oil when I had it and the previous owner looked after it as well.

There's no reason why you shouldn't get 200,000km out of a car. Yes, things will wear out and require replacement but that's every car. You might as well get some fun out of it rather than babying it - nothing is forever! :)

Kinks is right - no good paying heaps for a car that you are frightened you will damage all the time.

jap cars are generally pretty good and withstand a lot of abuse.

But yeah sht happens.

Best thing with these you can get 2nd hand parts cheap.

Depends how you drive and how much TLC you give it. I NEVER ever rev my car past 2000-3000 RPM until she has warmed up unles I jump on the freeway but even then the car has been runing for at least a few minutes and I dont rev past 3000 RPM to stay on 100 KM/h. Then I see some dudes who rev the f**k out of their car while sliding out of the uni car park when the engine is still cold in their Falcon.

There's no reason your engine won't make 200k if you leave it as is.

Do your 100k service, swap the water pump while you're in there and drive happily.

My old rb20 just got a bit tired in the end at close to 180k and i'd given it a fair old flogging over the 80k i owned it. It was far from stock at that stage.

The only thing you should do differently is do your oil changes at 5000, rather than 7000kms

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