Slater Posted June 15, 2005 Report Share Posted June 15, 2005 I have a quick question.I am looking at (2) different 16Ts, both supposedly listed as for the 850. Here's pictures of them side by side:The parts in question are:49189-01450 (TD04HL-16T-6)49189-05000 (TD04HL-16T-7)One has a straight flange (16T/6), a 6cm2 housing, and a slightly SMALLER outlet (2.75"). The other is an angled flange, has a 7cm2 housing (i.e. 16T/7), and has a larger outlet (3").Assuming you bolted each turbo to the same engine, what would differences would you notice? Obviously I know the downpipe will need to be different. But what I mean is I assume with the 7cm2 turbine housing there will be more turbo lag because it was sized for a larger displacement motor. And bolting it to an 850 would not be as good as the 16T with the 6cm2 housing.Am I right?Can any turbo experts explain why I would want 1 turbo or the other? The 6cm2 outlet is 2.75" and the 7cm2 outlet is 3", so from that aspect the 7cm2 would be better. But I want to make sure I understand the full story before trying to locate one or the other.VADIS isn't much help. It lists like 30 different turbos all as interchangeable.I did find on a few websites the 16T/7 is listed as the replacement for a 96-97 T-5R 2.3L, and the 16T/6 is listed as a replacement for a 97 850 2.0L?!? Now I'm totally confused!Thanks!- SlaterP.S. - I thought the 16T had the same outlet as the 18T and 19T. But WHICH 16T - the smaller 2.75" or the larger 3"? The smaller 16T straight flange looks like it would be the same bolt pattern as the straight flange 15G maybe...anyone know? Link to comment Share on other sites More sharing options...
Johann Posted June 15, 2005 Report Share Posted June 15, 2005 The angled flange is used on newer models with variable exhaust cam. Link to comment Share on other sites More sharing options...
volflo Posted June 15, 2005 Report Share Posted June 15, 2005 Am I right?Can any turbo experts explain why I would want 1 turbo or the other? The 6cm2 outlet is 2.75" and the 7cm2 outlet is 3", so from that aspect the 7cm2 would be better. But I want to make sure I understand the full story before trying to locate one or the other.I did find on a few websites the 16T/7 is listed as the replacement for a 96-97 T-5R 2.3L, and the 16T/6 is listed as a replacement for a 97 850 2.0L?!? Now I'm totally confused!←the 2.0 l version is the italian t5 version (italy has incredibly high taxes on any displacement >2.0 liter). so this version is basicaly the same engine was the reg. t5 with a smaller bore. So exhaus stream will be smaller as well opf course. That said i am close to positive that you would want the turbo for the 2.3l "normal" version.P.S. ....since the italian t5 only has 211hp, you probably wont want it. ;) Link to comment Share on other sites More sharing options...
Slater Posted June 15, 2005 Author Report Share Posted June 15, 2005 the 2.0 l version is the italian t5 version (italy has incredibly high taxes on any displacement >2.0 liter). so this version is basicaly the same engine was the reg. t5 with a smaller bore. So exhaus stream will be smaller as well opf course. That said i am close to positive that you would want the turbo for the 2.3l "normal" version.P.S. ....since the italian t5 only has 211hp, you probably wont want it. ←1. Well, here's the deal. I have a rebuilt 16T/6 turbo in my hands that I got from a US turbo rebuilder that looks exactly like the smaller one in the picture. 16T straight flange, 2.75" outlet, but with a different part number than that Italian one. The number on this 16T straight flnage is 49189-01350.Since the one I have here looks identical to the Italian one, would that still be "bad"? In other words, when US people with say the have a 16T straight flange, what turbo are they talking about? I believe the 98 or perhaps 99 S/V70 T5 had a straight flange 16T.2. Also, anyone know about the comment always made that the 16T has the same flanges as the 18T and 19T? Which version of the 16T are they talking about? Link to comment Share on other sites More sharing options...
550 Posted June 15, 2005 Report Share Posted June 15, 2005 I think ifyou can fabricate all the pieces to make it work, you will be golden. It also seems you will have made out like a bandit Link to comment Share on other sites More sharing options...
Slater Posted June 15, 2005 Author Report Share Posted June 15, 2005 The angled flange is used on newer models with variable exhaust cam.←So what would happen if you put it on an 850 turbo? Would it take longer for the turbo to spool up because of the larger exhaust housing?Also is the angled flange the same as the 18T and 19T turbos? Link to comment Share on other sites More sharing options...
550 Posted June 15, 2005 Report Share Posted June 15, 2005 couldn't you just get a chip with a slightly advanced exhaust cam to kinda make the housing size negligable? Link to comment Share on other sites More sharing options...
Johann Posted June 15, 2005 Report Share Posted June 15, 2005 So what would happen if you put it on an 850 turbo? Would it take longer for the turbo to spool up because of the larger exhaust housing?Also is the angled flange the same as the 18T and 19T turbos?←There's straight and angled 16T's and 18T's. The 19T is angled only as is the KKK-K24.Spoolup difference is minimal from a turbine point of view. A 16T will spool a bit later compared to a 15G also because of the compressor size.19T can be hard to tame. Really gets going after 2000 RPM. The 16T shows a bit rougher transition between off and on boost, 19T is more fluid in that respect.2.0 T-5R uses a 13G turbo by the way. Link to comment Share on other sites More sharing options...
lax01 Posted June 15, 2005 Report Share Posted June 15, 2005 hmmm I was wondering the same thing Slater...you see, at Carlisle, bing parked next to me and was talking about his 16T, I walked over there to take a look at his turbo and noticed the angled flanged...he said he get it off a 99 S70 T-5....I walked back over to mine knowing that mine was not angled...I have a straight flange..I'm guessing the compressors are exactly the same right? You might get better top-end flow with the 7cm2 exhaust housing...with the side-effect of slightly slower spool up... Link to comment Share on other sites More sharing options...
Guest DougK Posted June 15, 2005 Report Share Posted June 15, 2005 I'd go for the bigger exhaust housing. The TD04's are just to small imo. Im planning on a TD05-16G that a buddy of mine has no more use for (movin up to a holset). Already setup with the T3 flange.It'll be more effiecent and probably lead to lower Turbine Inlet Temps (tit! lol) which should in turn help reduce combustion temps and hopefully lead to less detonation.The TD05 on my buddies car had barely more lag than his previous setup. Link to comment Share on other sites More sharing options...
gdizzle Posted June 15, 2005 Report Share Posted June 15, 2005 I'd go for the bigger exhaust housing. The TD04's are just to small imo. Im planning on a TD05-16G that a buddy of mine has no more use for (movin up to a holset). Already setup with the T3 flange.It'll be more effiecent and probably lead to lower Turbine Inlet Temps (tit! lol) which should in turn help reduce combustion temps and hopefully lead to less detonation.The TD05 on my buddies car had barely more lag than his previous setup.←You said TIT. :lol: Link to comment Share on other sites More sharing options...
turbor850 Posted June 15, 2005 Report Share Posted June 15, 2005 even if both have 16T compressor wheel, the larger housing will give more lag (probably minimal) but will give more top end then the smaller housingi assume the wastegate for them are the same ?go with the larger housing - 7cm2 Link to comment Share on other sites More sharing options...
Slater Posted June 15, 2005 Author Report Share Posted June 15, 2005 even if both have 16T compressor wheel, the larger housing will give more lag (probably minimal) but will give more top end then the smaller housingi assume the wastegate for them are the same ?go with the larger housing - 7cm2←Sounds like a plan! Link to comment Share on other sites More sharing options...
855R Posted June 16, 2005 Report Share Posted June 16, 2005 Sweet, I have a large angled outlet 16T also. I'm having a custom 3inch downpipe plan put into action this week :D Link to comment Share on other sites More sharing options...
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