fischmama Posted March 16, 2010 Report Share Posted March 16, 2010 I think its more of ease and being easy to be a direct swap into our cars . It is a fairly easy install; however, it isn't quite a direct bolt on like the 19t as the compressor side will hit the coolant pipe (at least - 98). It either needs to be bent to fit (can break) or newer style coolant pipe will need to be used. Link to comment Share on other sites More sharing options...
dublin14 Posted March 16, 2010 Author Report Share Posted March 16, 2010 K24 would be nice if it didn't grenade as soon as you start pushing it. I would love to find out from all the Modded S60R owners that Run 20PSI and see if thats really true. I have known of a bunch of modded S60Rs and modded S60 T5s that have never had issues with the K24. But i guess you have seen some go. Link to comment Share on other sites More sharing options...
Captain Bondo Posted March 16, 2010 Report Share Posted March 16, 2010 A straight CFM rating gives next to no indication of a compressor's actual performance.... it gives no idea of what pressure ratio the turbo flows that rating at, or if it flows it at an appropriate pressure ratio for your application, etc. Link to comment Share on other sites More sharing options...
ozzimark Posted March 16, 2010 Report Share Posted March 16, 2010 Indeed, a compressor map would be awesome.. Link to comment Share on other sites More sharing options...
EricF Posted March 16, 2010 Report Share Posted March 16, 2010 A straight CFM rating gives next to no indication of a compressor's actual performance.... it gives no idea of what pressure ratio the turbo flows that rating at, or if it flows it at an appropriate pressure ratio for your application, etc. Luckily most of these compressors they are talking about were designed for use in an OEM 5-cylinder whiteblock turbo application. Still though, this discussion should end before comparing to outside manufacturers. Unless we have compressor maps in lbs/min or kg/sec it's very difficult to compare apples to oranges. It's even a stretch to try comparing the K24 to any TD04HL's with no data. Link to comment Share on other sites More sharing options...
Captain Bondo Posted March 16, 2010 Report Share Posted March 16, 2010 My point is that deciding a turbo is "bigger" or "better" based on comparing one arbitrarily derived CFM rating to some other arbitrarily derived CFM rating is pointless. Is that clearer? A turbo that moves 500cfm at 1.5 PR at 70% efficiency is quite likely a bigger/better turbo than one that flows 600cfm at 55% efficency and 3.0PR. So what does the cfm mean? Answer: Not a whole lot unless you know the pressure ratio and efficiency at that point. The turbo used on a 300hp (S60R K24) version of these motors is likely a bit bigger than the one used on a 250hp version (V70R 19T), which is likely a bit bigger than those used on the ~230hp version (16T). Pretty standard trend, the cfm rating doesn't tell you anything you didn't already know. Link to comment Share on other sites More sharing options...
fischmama Posted March 16, 2010 Report Share Posted March 16, 2010 I would love to find out from all the Modded S60R owners that Run 20PSI and see if thats really true. I have known of a bunch of modded S60Rs and modded S60 T5s that have never had issues with the K24. But i guess you have seen some go. I ran ~20PSI on mine. No issues with the turbo. Link to comment Share on other sites More sharing options...
550 Posted March 16, 2010 Report Share Posted March 16, 2010 My point is that deciding a turbo is "bigger" or "better" based on comparing one arbitrarily derived CFM rating to some other arbitrarily derived CFM rating is pointless. Is that clearer? A turbo that moves 500cfm at 1.5 PR at 70% efficiency is quite likely a bigger/better turbo than one that flows 600cfm at 55% efficency and 3.0PR. So what does the cfm mean? Answer: Not a whole lot unless you know the pressure ratio and efficiency at that point. The turbo used on a 300hp (S60R K24) version of these motors is likely a bit bigger than the one used on a 250hp version (V70R 19T), which is likely a bit bigger than those used on the ~230hp version (16T). Pretty standard trend, the cfm rating doesn't tell you anything you didn't already know. Thank you. Link to comment Share on other sites More sharing options...
L8 APEKS Posted March 16, 2010 Report Share Posted March 16, 2010 Remember too that unless you're running the exact same pressure ratio, those CFM numbers don't mean anything. Seems pretty simple though...slightly slower spool, and slightly more air up top compared to a 19T. Like it's been pointed out, ~37 CFM peak is not much of a difference (19T @ 500 vs K24-74 @ 537 at the same PR). You'd want to at least go with the K24-80 to make it worth while, and again, you'll need to be running that same PR to match those numbers! Link to comment Share on other sites More sharing options...
JCviggen Posted March 16, 2010 Report Share Posted March 16, 2010 I would love to find out from all the Modded S60R owners that Run 20PSI and see if thats really true. I have known of a bunch of modded S60Rs and modded S60 T5s that have never had issues with the K24. But i guess you have seen some go. I think I know of 4 broken ones first hand so far...4 cases of a turbine wheel failure. That's the weak spot. One of them was on a V70R, the others were 850s and one x70 that were maxing it out. Didn't take very long for them to fail either in those applications. The V70R saw a lot of track time so not surprised that went. They are nowhere near as sturdy as the old mitsu turbos when pushing their rpm limits. Increased EGT probably doesn't help them either. But maybe they get pushed harder here than in the US. I'd ignore them altogether and slap on a T3/T04E instead with a healthy size turbine. Link to comment Share on other sites More sharing options...
550 Posted March 16, 2010 Report Share Posted March 16, 2010 Remember too that unless you're running the exact same pressure ratio, those CFM numbers don't mean anything. Seems pretty simple though...slightly slower spool, and slightly more air up top compared to a 19T. Like it's been pointed out, ~37 CFM peak is not much of a difference (19T @ 500 vs K24-74 @ 537 at the same PR). You'd want to at least go with the K24-80 to make it worth while, and again, you'll need to be running that same PR to match those numbers! I don't consider there to be any lag time(RE: slightly lower spool). I would have to say this thing goes crazy especially if you can't control the boost. I hit 19 psi before 3.8k rpms... with out trying :-/ Link to comment Share on other sites More sharing options...
dublin14 Posted March 16, 2010 Author Report Share Posted March 16, 2010 The hole point to this really was is a will a K24 out perform a 19T? The K24 is a bigger Turbo bigger wheels and flows more CFM and with the ETT wheel will be more efficent and will out flow a non ETT wheel of similar size! A K24 will produce more HP than a 19T plain and simple! The hole point to this really was is a will a K24 out perform a 19T? The K24 is a bigger Turbo bigger wheels and flows more CFM and with the ETT wheel will be more efficent and will out flow a non ETT wheel of similar size! A K24 will produce more HP than a 19T plain and simple! Excuse the grammer... i have 10 things on the go here lol! Link to comment Share on other sites More sharing options...
Captain Bondo Posted March 16, 2010 Report Share Posted March 16, 2010 Well of course. Was that ever a debate? It's from an application with 300hp from the factory. The 19t is from an applicatrion with 250hp from the factory. It doesn't take a rocket scientist to asses the situation. Link to comment Share on other sites More sharing options...
BlackT5 Posted March 16, 2010 Report Share Posted March 16, 2010 Well of course. Was that ever a debate? It's from an application with 300hp from the factory. The 19t is from an applicatrion with 250hp from the factory. It doesn't take a rocket scientist to asses the situation. :lol: Link to comment Share on other sites More sharing options...
JCviggen Posted March 16, 2010 Report Share Posted March 16, 2010 Well of course. Was that ever a debate? It's from an application with 300hp from the factory. The 19t is from an applicatrion with 250hp from the factory. It doesn't take a rocket scientist to asses the situation. +1 for that lol Link to comment Share on other sites More sharing options...
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