Attero Posted November 22, 2016 Share Posted November 22, 2016 (edited) Forgive me for my ignorance if I haven't quite understood something here. I'm looking to get my standard j spec turbos rebuilt and the rebuilders I'm talking to have suggested that if I wanted a little bit more power from them without blowing them up, I should upgrade to inconel. What would be the cons and pros to upgrading to inconel over billet? Should I be asking for billet? Or is there no point? Just want a little extra kick if I'm going to be rebuilding! Edited November 22, 2016 by Attero (see edit history) Link to comment Share on other sites More sharing options...
ibby Posted November 22, 2016 Share Posted November 22, 2016 I am sure inconel are lighter and stronger.. but experts will respond! Link to comment Share on other sites More sharing options...
Tricky-Ricky Posted November 22, 2016 Share Posted November 22, 2016 Inconel comes in several grades, but is considered one of the super alloys, and has superior pressure heat and pressure capabilities. Link to comment Share on other sites More sharing options...
JasonR24 Posted November 22, 2016 Share Posted November 22, 2016 Unless your turbos are broken already. Do not get them rebuilt. Lee said from experience they're not reliable Link to comment Share on other sites More sharing options...
Attero Posted November 22, 2016 Author Share Posted November 22, 2016 Unless your turbos are broken already. Do not get them rebuilt. Lee said from experience they're not reliable They are broken. Link to comment Share on other sites More sharing options...
ShawnPreece Posted November 22, 2016 Share Posted November 22, 2016 They are broken. sounds like a good excuse for a single Link to comment Share on other sites More sharing options...
Attero Posted November 22, 2016 Author Share Posted November 22, 2016 sounds like a good excuse for a single I did consider it but it's a whole lot of money I really don't have. Link to comment Share on other sites More sharing options...
JasonR24 Posted November 22, 2016 Share Posted November 22, 2016 They are broken. Second hand set would still be better Link to comment Share on other sites More sharing options...
Attero Posted November 22, 2016 Author Share Posted November 22, 2016 Second hand set would still be better Problem is finding a set that has less miles than mine did and then them breaking up soon anyway Aren't you running hybrids? Seem to recall you saying you were when I met you at wroxall abbey (thinking of the same guy I'm sure). Link to comment Share on other sites More sharing options...
JasonR24 Posted November 22, 2016 Share Posted November 22, 2016 Problem is finding a set that has less miles than mine did and then them breaking up soon anyway Aren't you running hybrids? Seem to recall you saying you were when I met you at wroxall abbey (thinking of the same guy I'm sure). Yea that was me mate and they were broken! Didn't realise until Lee had them apart they were broken. So was the exhaust valve. I was lucky as Jamie's set were good so had those. Link to comment Share on other sites More sharing options...
Attero Posted November 22, 2016 Author Share Posted November 22, 2016 Yea that was me mate and they were broken! Didn't realise until Lee had them apart they were broken. So was the exhaust valve. I was lucky as Jamie's set were good so had those. What is it about hybrid turbos that makes them unreliable? I mean it is a major concern of mine, but I don't know how common this is. Who did your rebuild? Link to comment Share on other sites More sharing options...
Hemanhead Posted November 22, 2016 Share Posted November 22, 2016 Umm the inconel will be for the hotside of the turbo, not the compressor side. Its a super alloy able to withstand higher temps. Garrett tend to use them on their turbos alot for reliability. So yeah, it will stop them blowing up as easily i guess. Link to comment Share on other sites More sharing options...
j_jza80 Posted November 22, 2016 Share Posted November 22, 2016 What is it about hybrid turbos that makes them unreliable? I mean it is a major concern of mine, but I don't know how common this is. Who did your rebuild? Hybrid turbo manufacturers just don't have the R&D facilities, quality control, and budget to compete with the big manufacturers. When you know you're going to be selling a product by the millions, reliability is far more of a concern. Link to comment Share on other sites More sharing options...
Burna Posted November 23, 2016 Share Posted November 23, 2016 It's not the blades that are the problem with rebuilding J-Spec turbos, it's the shafts. The shafts were designed for ceramic blades, and when rebuilt with steel blades they tend to fail. Your best options are finding a set of knackered UK turbos and get those rebuilt, or buy a second hand set off J-Specs and fit those. Link to comment Share on other sites More sharing options...
JasonR24 Posted November 23, 2016 Share Posted November 23, 2016 Hybrid turbo manufacturers just don't have the R&D facilities, quality control, and budget to compete with the big manufacturers. When you know you're going to be selling a product by the millions, reliability is far more of a concern. Sorry for the late reply mate but as Jay said really. Mine was also due to the fact contamination was left in the intake by a third party. Mine were built by turbo dynamics. Although knowing what I do now I won't get hybrids ever again. It's just safer not to. Plus I've listened to Lees advice and the car is perfect now. Link to comment Share on other sites More sharing options...
Swampy442 Posted November 23, 2016 Share Posted November 23, 2016 An inconel compressor would be really heavy compared to an aluminium one. As said inconel is excellent for high temps, but its hard to work and gram for gram its really heavy compared to ally, or in other words more lag. Link to comment Share on other sites More sharing options...
ibby Posted November 23, 2016 Share Posted November 23, 2016 Lag = traction Link to comment Share on other sites More sharing options...
Attero Posted November 23, 2016 Author Share Posted November 23, 2016 No one wants traction. I'm being persuaded in many ways that hybrids are just not worth it. Link to comment Share on other sites More sharing options...
ibby Posted November 23, 2016 Share Posted November 23, 2016 For cost and possible more gains maybe a single ? Link to comment Share on other sites More sharing options...
Attero Posted November 23, 2016 Author Share Posted November 23, 2016 I think for now until I can afford a single, I'm going to put up with some stock twins and aim to move to a single earlier than I'd hoped. Link to comment Share on other sites More sharing options...
Chris Wilson Posted November 25, 2016 Share Posted November 25, 2016 My experience and opinion on rebuilt turbo concurs with Lee's. Also most used, stock front turbo turbine castings are cracked around the wastegate port. If you can afford, and still get. new ones and intend keeping the car long term, get those. The Jap spec turbos were a LOT more reliable from new than the UK spec one. Although still a risk I would prefer known good used Jap spec turbos to rebuilt ones. Link to comment Share on other sites More sharing options...
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