26/6 to 27/6 upgrade experiances?
02-10-2009, 08:27 PM
#16
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I used to think the 7200 was the larger cold side but now I am not so sure. Recently I read on the 965 forum that the 7200 was on the 3.3l and the 7006 was on the later 3.6l
02-10-2009, 08:39 PM
#17
Drifting
I have no idea about the two different housings. My favorite was an actual K26 bolted up to a K27 cold side. I had another DR variant with a clipped wheel that was supposed to come on earlier and had more top end, but I didn't notice a thing.
Point here is that if you want an honest 300whp 2.5 car using proven "old school" stuff, this is a reliable proven route.
Just get the tuning right. Makes all the difference when you want the most from your efforts. By the way, I was using stock injectors back then.
George
Point here is that if you want an honest 300whp 2.5 car using proven "old school" stuff, this is a reliable proven route.
Just get the tuning right. Makes all the difference when you want the most from your efforts. By the way, I was using stock injectors back then.
George
Thanks George. Is your experiance with the "7200" variation or the "7006" variation? I'm getting lots of feedback that the 7200 is the one to go for and to avoid the 7006. Seems to be quite a few 7006's available but not so many 7200's.
Forum rules keep me from asking for a 7200; I may have to finally pony up the member fee.
Forum rules keep me from asking for a 7200; I may have to finally pony up the member fee.
02-10-2009, 08:59 PM
#18
Burning Brakes
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I had a K27/8 with a 7006 wheel and made 317 rwhp at 1 bar. Swapping turbos can be a pain in the butt so make sure you pick up the right one from the get go! From what I have seen, K27/8 is not that much more expensive than the K27/6 and lag isn't all that bad if you have supporting mods.
-Nick
-Nick
02-10-2009, 09:06 PM
#19
Drifting
I had a K27/8 with a 7006 wheel and made 317 rwhp at 1 bar. Swapping turbos can be a pain in the butt so make sure you pick up the right one from the get go! From what I have seen, K27/8 is not that much more expensive than the K27/6 and lag isn't all that bad if you have supporting mods.
-Nick
-Nick
I'm just being helpful with someone that doesn't want to spend big bucks, keep things simple and have the same response as a K26/6. We put a K
27/8 on a car very similar to mine and he hit max tq at 4500, or 1000 rpm later than my K27/6. It really depends on what you want. Both turbos work well with the 2.5. He couldn't utilize the potential upper range of the larger hotside as he didn't have the supporting mods.
George
02-10-2009, 09:21 PM
#20
Burning Brakes
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Nick,
I'm just being helpful with someone that doesn't want to spend big bucks, keep things simple and have the same response as a K26/6. We put a K
27/8 on a car very similar to mine and he hit max tq at 4500, or 1000 rpm later than my K27/6. It really depends on what you want. Both turbos work well with the 2.5. He couldn't utilize the potential upper range of the larger hotside as he didn't have the supporting mods.
George
I'm just being helpful with someone that doesn't want to spend big bucks, keep things simple and have the same response as a K26/6. We put a K
27/8 on a car very similar to mine and he hit max tq at 4500, or 1000 rpm later than my K27/6. It really depends on what you want. Both turbos work well with the 2.5. He couldn't utilize the potential upper range of the larger hotside as he didn't have the supporting mods.
George
02-11-2009, 01:11 AM
#23
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02-11-2009, 01:33 AM
#24
Burning Brakes
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The 930 guys seem to covet the 27/6 7200 variants. I exchanged some emails with Kevin at Ultimatemotorwerks.com (conveniently and incidently just a few miles from my home) who seems to be top notch supplier of 930 turbos. Are there other sources? I'd be interested.
He says about $950 and my 26/6 get's a 27/6 7200. Of course, at that price, you open up the whole door of Lindsey, PowerHaus, Pauertuning, SFR, etc options.
Ah...the...er....science of turbo selection.
He says about $950 and my 26/6 get's a 27/6 7200. Of course, at that price, you open up the whole door of Lindsey, PowerHaus, Pauertuning, SFR, etc options.
Ah...the...er....science of turbo selection.
02-11-2009, 09:33 AM
#25
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The problem with a K27/6 will be back pressure. As long as you keep the boost below 17-18psi, for a street car you should be fine. However, you must address the installation (modified J-pipe, water pipe,..), you also must handle the engine management. So the cost and effort will not be limited to the turbo itself.
Another alternative to consider is a "cheater" turbo where we convert the K26 internally by upgrading the compressor wheel and housing. It will look exactly like the stock unit (no external modifications required) and will perform great.
Another alternative to consider is a "cheater" turbo where we convert the K26 internally by upgrading the compressor wheel and housing. It will look exactly like the stock unit (no external modifications required) and will perform great.
