rider Posted October 31, 2016 Share Posted October 31, 2016 I've been thinking what to do with replacing my Japanese spec Turbos when they finally fail but they aren't showing any signs of deteriorating. The car and turbos have covered 112k miles now and I'm used to turbo diesels always giving up after 80k miles. How long do these Supra turbos generally go on for with regular oil changes which used to mean every 9,000 miles but for the last 10 years its more like every 2,000 miles. Quote Link to comment Share on other sites More sharing options...
Ohrlly Posted November 1, 2016 Share Posted November 1, 2016 I've been thinking what to do with replacing my Japanese spec Turbos when they finally fail but they aren't showing any signs of deteriorating. The car and turbos have covered 112k miles now and I'm used to turbo diesels always giving up after 80k miles. How long do these Supra turbos generally go on for with regular oil changes which used to mean every 9,000 miles but for the last 10 years its more like every 2,000 miles. had mine last to about 160k km Quote Link to comment Share on other sites More sharing options...
Dnk Posted November 1, 2016 Share Posted November 1, 2016 My UK spec was at 137,000 miles when i sold it and still running the original turbos Quote Link to comment Share on other sites More sharing options...
ibby Posted November 1, 2016 Share Posted November 1, 2016 My turbo diesel turbo lasted 500k thats when i sold the car. Its still running now lol Quote Link to comment Share on other sites More sharing options...
fastcar Posted November 1, 2016 Share Posted November 1, 2016 How long is a piece of string? Quote Link to comment Share on other sites More sharing options...
ronttuk Posted November 1, 2016 Share Posted November 1, 2016 My UK spec got to 153,000 on original turbos before one failed Quote Link to comment Share on other sites More sharing options...
bignum Posted November 1, 2016 Share Posted November 1, 2016 What boost are you running, 1 bar or less and they should last another 100k Quote Link to comment Share on other sites More sharing options...
rider Posted November 2, 2016 Author Share Posted November 2, 2016 What boost are you running, 1 bar or less and they should last another 100k No idea, there are no gauges or even adjustable or variable valves that I've seen or found in 18 years of ownership. I'd suspect it is boosted beyond standard as it rolling road tested about 10 years ago with 340bhp at the drive wheels. Quote Link to comment Share on other sites More sharing options...
Gaz6002 Posted November 2, 2016 Share Posted November 2, 2016 Should last as long as the car if they've been treated properly. Turning the boost up shortens their lifespan considerably, though. Quote Link to comment Share on other sites More sharing options...
rider Posted November 2, 2016 Author Share Posted November 2, 2016 How long is a piece of string? that's hard to know beyond it has a start and a finish. A bit like Turbos in a car will usually last at least and go as far as. All I know is my pair are still fine at 110k miles, hence the question on other reference points. You have to at least find the string before you can size it up. Quote Link to comment Share on other sites More sharing options...
j_jza80 Posted November 2, 2016 Share Posted November 2, 2016 The set rule is that if you plan on upgrading to a single when they fail, they will last forever. If you decide to stick with stock turbos, they will fail within days. Quote Link to comment Share on other sites More sharing options...
ashloys Posted November 2, 2016 Share Posted November 2, 2016 The set rule is that if you plan on upgrading to a single when they fail, they will last forever. If you decide to stick with stock turbos, they will fail within days. This is a fact :'( Quote Link to comment Share on other sites More sharing options...
Mika Posted November 2, 2016 Share Posted November 2, 2016 The set rule is that if you plan on upgrading to a single when they fail, they will last forever. If you decide to stick with stock turbos, they will fail within days. So it seems to be. Quote Link to comment Share on other sites More sharing options...
rider Posted November 2, 2016 Author Share Posted November 2, 2016 I was thinking single but decided 3 years ago long term the cars value will be enhanced by its originality so I'd likely go hybrid twins. Seems I can expect them to fail any day! Quote Link to comment Share on other sites More sharing options...
Mika Posted November 2, 2016 Share Posted November 2, 2016 I was thinking single but decided 3 years ago long term the cars value will be enhanced by its originality so I'd likely go hybrid twins. Seems I can expect them to fail any day! You are in the same boat as I am, I bought a new HKS T51R Kai single kit back in 2007 but I never installed it and sold the kit away (I should have kept it..). But today I´m happy I did not ended up to single my car (There is nothing wrong with the single Supras when everything has been carried out right (quality built in every way)). Quote Link to comment Share on other sites More sharing options...
martincoupe Posted November 2, 2016 Share Posted November 2, 2016 that's hard to know beyond it has a start and a finish. A bit like Turbos in a car will usually last at least and go as far as. All I know is my pair are still fine at 110k miles, hence the question on other reference points. You have to at least find the string before you can size it up. A piece of string is twice the length from the middle to then end ! Quote Link to comment Share on other sites More sharing options...
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