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Find the measurements of the 997GT2 Turbine wheel and A/R or volume of the turbine housing.
Go to the 991GT2RS and do the same..
K16's and then K24's..
Bottom line>>K24's are great for high speed tracks
K16 hybrids are very good for technical tracks with speeds under 155mph
If you want to move to K24's I have a couple options/sets available.
So, the type of turbo that powdrhound is running just doesn’t seem right for me with it having rod bending quick spool up times. So I’m thinking that is a bit further down the rabbit hole I’d be able to go at this point
I have moved away from the K16 Zero clearance hybrid platform and on to a larger framed turbocharger. As much as I liked my K16 when I ran them on my 3.6 and 3.8, knowing what I know now, I am much happier with a larger turbocharger and I feel it is a much better platform for a road course application where my RPMs rarely drop below 3500. Turbocharger development and technology has come a long way and there are several excellent options to the 20+ year old K16 platform. Do your research and good luck..
Last edited by powdrhound; 04-17-2019 at 10:50 PM.
Anyone else feel feel like they are being trolled in this thread?
Turbo Racer is doing a rear wheel conversion for high speed track use and feels a K24 with more lag is a good idea?
Telling Us he’s doing solid rear subframe mounts after all the new RSS hardware is mounted on the subframe and the rubber mounts are visible?
Hey - I applaud the enthusiasm. I am also mentally unwell with mods. But something tells me he’s only gonna start asking about brake upgrades after he’s in the sand.
My advise. Go do some laps. Get a feel for the car. Then start making some changes. Lighten the car up. But take the spare tire out of the front BEFORE you decide to add a carbon bonnet.
Votes
is he:
A.) Trolling the enthusiasts?
B.) Too enthusiastic for his own good?
For the 500-750 rpm difference in spool it's a wash. Look at the srm 24/71 turbos. New no core charge and even with journal bearings spool fast. Stay in the right gear you won't have lag
I have moved away from the K16 Zero clearance hybrid platform and on to a larger framed turbocharger. As much as I liked my K16 when I ran them on my 3.6 and 3.8, knowing what I know now, I am much happier with a larger turbocharger and I feel it is a much better platform for a road course application where my RPMs rarely drop below 3500. Turbocharger development and technology has come a long way and there are several excellent options to the 20+ year old K16 platform. Do your research and good luck..
thanks again for checking in. I have been trying to read up on a lot of information on how this works and how it affects the car in real life applications. I’ve seen your car in the videos you posted and the speed you have is no joke. Very appreciative of the knowledge you share with the community. I just spent an hour or so with a guy who has done turbo chargers for the last 35 years here in town and it was really pretty helpful in understanding how these things work. After speaking with him I decided to go with the k-16/24 billet hybrid. We will see how it works out.
My advise. Go do some laps. Get a feel for the car. Then start making some changes. Lighten the car up. But take the spare tire out of the front BEFORE you decide to add a carbon bonnet.
‘I will be sure not to repeat the mistakes you’ve made in the past 😉 Solid subframe mounts 😊
99/100 are going to be just fine with the quick spool coupled with the top end of the 16/24 hybrid turbo. all else being equal.
notwithstanding pwdrhound being an "outlier" with his once 3.8 now 4.0? motor and ( here ) legendary setup?
there really isn't any "re-inventing" of the turbine "wheel" for this platform. 16/24's are tried and proven. with no lag or "issues".
thanks man! I am hoping to get these back this afternoon. I going to take some pictures of the new ones and post them later. It’s shaping up to be a very Good Friday!
there really isn't any "re-inventing" of the turbine "wheel" for this platform. 16/24's are tried and proven. with no lag or "issues".
have to disagree with you there. the new turbine technology is light years ahead of what the old journal bearing turbos had. the b/w 6258 allow for no bov or recirc valves. water AND oil cooled. recirc back to the compressor wheel for added spool during shifts. internal wastegates mean no external w/g cost. look at the b/w wheel technology. good enough for indy cars good enough for 99% of the drivers on here. fast spool great top end boost. cheaper than xona turbos and a plug and play hot side the only thing needed is some minor dremel work on the oem oil tank mounting holes for lining the tank up
Turbos are back from the shop. Small world. The guy that built them put his son through the same school as my boy is currently attending. Anyway, as I spoke with him we decided to go with billet k16/24 and the came out beautifully. It was great timing because one of the turbos was just starting to leak so I feel great about the refresh!
it is such a cool little shop, I’ve included a few pictures. He’s got turbos for Japanese cars, BMW (those guys love their turbos!) and even a lot of stuff for big rigs. Like I mentioned earlier, he’s been doing this stuff for 35 years. Dropped it off at 4pm and they were ready at noon. Cheap too. Cheers all and thanks for all your helpful advise along the way!! Newly rebuilt k16/24 Newly rebuilt k16/24 Turbo test bench Big rig turbos Turbos Billet city
04-17-2019, 08:57 PM
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