402 wh from a bnr hybrid.
08-11-05, 10:34 AM
#26
"your turbo source"
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The turbo was kinda a custom job. The compressor housing I figured had a little more room to move around on the Cosmo engine b/c of the lower intake manifold hugging the engine like and FD lower. A T04B would have made the same HP as the E and would have cleared, but that E really looks awesome down there hugging onto the engine 
. The T04B would have had a lot of clearance around the housing and would have looked rather small on that engine.
We could have used the S5 Turbine housing and manifold, but being a devided exhaust manifold and the runners being so small, there is a restriction before the exhaust hits the turbo. I am not saying that the S5 turbo and manifold will not work for high HP applications, I am just saying it won't have quite the big end that a S4 manifold and turbo does. For one the exhaust manifold is undevided and the runners in the S4 manifold are twice the size as a S5. Thats probably where we lose a bit of spool from, but the big end is there...
The internal wastegate I used is very big considering what came with the turbo. The wastegate also works a bit better b/c of the larger manifold runners. The more velocity you have between the turbo and manifold, the larger wastegate you need to control your boost. So what Series 5 guys need to do is open the runners on the turbo manifold and also the runners on the turbine housing, then make your own gasket between the 2. Opening them will hurt spool but will drastically help boost control.
I would like to see the corrected dynosheet when you have a chance....
Bryan@BNR
205 640 1193
. The T04B would have had a lot of clearance around the housing and would have looked rather small on that engine. We could have used the S5 Turbine housing and manifold, but being a devided exhaust manifold and the runners being so small, there is a restriction before the exhaust hits the turbo. I am not saying that the S5 turbo and manifold will not work for high HP applications, I am just saying it won't have quite the big end that a S4 manifold and turbo does. For one the exhaust manifold is undevided and the runners in the S4 manifold are twice the size as a S5. Thats probably where we lose a bit of spool from, but the big end is there...
The internal wastegate I used is very big considering what came with the turbo. The wastegate also works a bit better b/c of the larger manifold runners. The more velocity you have between the turbo and manifold, the larger wastegate you need to control your boost. So what Series 5 guys need to do is open the runners on the turbo manifold and also the runners on the turbine housing, then make your own gasket between the 2. Opening them will hurt spool but will drastically help boost control.
I would like to see the corrected dynosheet when you have a chance....
Bryan@BNR
205 640 1193
08-11-05, 12:19 PM
#28
Locust of the apocalypse
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Get rid of those 1600's.... Use 4X1000's and you'll be able to tune out that staging blurb..
I was having the same problem.. I yanked the 1600's and got some Marren 1000's (american style to fit the k2RD secondary rail I already had for the 1600s) and BINGO.. MUCH smoother transition.
I was having the same problem.. I yanked the 1600's and got some Marren 1000's (american style to fit the k2RD secondary rail I already had for the 1600s) and BINGO.. MUCH smoother transition.
Last edited by YearsOfDecay; 08-11-05 at 12:21 PM.
08-11-05, 12:38 PM
#29
multipersonality disorder
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^ already suggested but i'm not in control of that factor. FYI, that's what i'll be using on my fd 
i should mention i'm at 4000+ foot elevation here. the turbo on my old fc (62-1/1.15 p-trim) would hit full boost around 4100 rpm up here, but 3600 rpm at sea level. i don't know how much more spoolup we'll get at sea level, but if we get a few hundred, then i can tune a few hundred more into it, we'll be good to go.
i should mention i'm at 4000+ foot elevation here. the turbo on my old fc (62-1/1.15 p-trim) would hit full boost around 4100 rpm up here, but 3600 rpm at sea level. i don't know how much more spoolup we'll get at sea level, but if we get a few hundred, then i can tune a few hundred more into it, we'll be good to go.
