Compound om605 - mini project
Compound om605 - mini project
(11-03-2015, 12:11 PM)EDH_Performance Hx30 6cm and hx40 18cm hx40 in stamsaas build works, but hx30 is big bottle neck
Paul's hx35 12cm and hx52 16cm om606 is working good but high bacpressure due to hx35 turbine and housing
(11-03-2015, 12:11 PM)EDH_Performance Hx30 6cm and hx40 18cm hx40 in stamsaas build works, but hx30 is big bottle neck
Paul's hx35 12cm and hx52 16cm om606 is working good but high bacpressure due to hx35 turbine and housing
(02-25-2016, 01:12 PM)2996 Absolutely fantastic build, especially considering the engineering constraints the chassis produces! Hmm, that wastegate looks familiar
The exhaust reminds me of the turbine outlet of an arriel, very nice
Thanks mate
(02-25-2016, 01:12 PM)2996 Absolutely fantastic build, especially considering the engineering constraints the chassis produces! Hmm, that wastegate looks familiar
The exhaust reminds me of the turbine outlet of an arriel, very nice
(02-25-2016, 01:12 PM)2996 Absolutely fantastic build, especially considering the engineering constraints the chassis produces! Hmm, that wastegate looks familiar
The exhaust reminds me of the turbine outlet of an arriel, very nice
F.R.A.SThanks mate
(02-25-2016, 01:12 PM)2996 Absolutely fantastic build, especially considering the engineering constraints the chassis produces! Hmm, that wastegate looks familiar
The exhaust reminds me of the turbine outlet of an arriel, very nice
(02-29-2016, 05:03 AM)atypicalguy Yes FRAS looking good over there. What is the plan for the wastegate actuators? Seems like one would want electronic control.
It's not for me to decide but I would go manual boost control on them all. As it is now we have three boost activated wastegates. One internal on the hx30 and one internal on the hx52 + the Tial 44mm wastegate.
I don't know whats the fastest way of doing this or even how to do it "right" but I would dial them in each and every one on there own.
(02-29-2016, 05:03 AM)atypicalguy Yes FRAS looking good over there. What is the plan for the wastegate actuators? Seems like one would want electronic control.
(03-01-2016, 03:18 AM)F.R.A.S It's not for me to decide but I would go manual boost control on them all. As it is now we have three boost activated wastegates. One internal on the hx30 and one internal on the hx52 + the Tial 44mm wastegate.
I don't know whats the fastest way of doing this or even how to do it "right" but I would dial them in each and every one on there own.
(02-29-2016, 05:03 AM)atypicalguy Yes FRAS looking good over there. What is the plan for the wastegate actuators? Seems like one would want electronic control.
(03-01-2016, 03:18 AM)F.R.A.S It's not for me to decide but I would go manual boost control on them all. As it is now we have three boost activated wastegates. One internal on the hx30 and one internal on the hx52 + the Tial 44mm wastegate.
I don't know whats the fastest way of doing this or even how to do it "right" but I would dial them in each and every one on there own.
(02-29-2016, 05:03 AM)atypicalguy Yes FRAS looking good over there. What is the plan for the wastegate actuators? Seems like one would want electronic control.
Hario that is kind of the idea. The problem is of course surviving the exh gas temp to do so. So a little bit more complicated way to do the same thing is to actually run the most amount of wastegating that you can to maintain your desired boost pressure. You could also do this more simply by opening at a desired rpm where you calculated the flow to be about the choke point of the smaller turbo. But basically we do something similar with rally cars running on the restrictor. It is on the intake of course but similar concept up top in the higher rpms. We go from really targeting boost pressure to opening the wastegate even though pressure is dropping to relieve exh back pressure. And we pick up really pretty high hp numbers from this. We check inlet vacuum at the shaft. But you could do something similar temporarily in the exh. and check the rpm/boost pressure that the exh pressure will just spike through the roof. Open the wastegate a bit before all the way.
(03-03-2016, 10:14 AM)whipplem104 Hario that is kind of the idea. The problem is of course surviving the exh gas temp to do so. So a little bit more complicated way to do the same thing is to actually run the most amount of wastegating that you can to maintain your desired boost pressure. You could also do this more simply by opening at a desired rpm where you calculated the flow to be about the choke point of the smaller turbo. But basically we do something similar with rally cars running on the restrictor. It is on the intake of course but similar concept up top in the higher rpms. We go from really targeting boost pressure to opening the wastegate even though pressure is dropping to relieve exh back pressure. And we pick up really pretty high hp numbers from this. We check inlet vacuum at the shaft. But you could do something similar temporarily in the exh. and check the rpm/boost pressure that the exh pressure will just spike through the roof. Open the wastegate a bit before all the way.
(03-03-2016, 10:14 AM)whipplem104 Hario that is kind of the idea. The problem is of course surviving the exh gas temp to do so. So a little bit more complicated way to do the same thing is to actually run the most amount of wastegating that you can to maintain your desired boost pressure. You could also do this more simply by opening at a desired rpm where you calculated the flow to be about the choke point of the smaller turbo. But basically we do something similar with rally cars running on the restrictor. It is on the intake of course but similar concept up top in the higher rpms. We go from really targeting boost pressure to opening the wastegate even though pressure is dropping to relieve exh back pressure. And we pick up really pretty high hp numbers from this. We check inlet vacuum at the shaft. But you could do something similar temporarily in the exh. and check the rpm/boost pressure that the exh pressure will just spike through the roof. Open the wastegate a bit before all the way.
The problem I have with all of this targeting high boost at low rpm is the torque. You end up with unusable power for anything other than doing a burn out. Big lag is annoying but for the 450 hp levels a good setup and turbo selection can get you something that should easily spool by around 2200-2500 rpm. Or lower. Something like a 67/80. I think if we dropped our a/r down to target more like 5-600hp it would spool up in the mid 2000 rpm. It wants to at around 2500 rpm. It will make a couple psi. And honestly just getting the converter stall setup would solve all of this.
high boost at low rpm makes gobs of low end torque, which can also wreak havoc on hard parts. 6.7 cummins are known to bed rods with small compounds that light quick, but survive fine with big, slower spooling singles.
Just something to think about
Agreed. We are trying to keep peak tq below around 650lb/ft or preferably less.
(03-22-2016, 06:22 PM)whipplem104 The problem I have with all of this targeting high boost at low rpm is the torque. You end up with unusable power for anything other than doing a burn out. Big lag is annoying but for the 450 hp levels a good setup and turbo selection can get you something that should easily spool by around 2200-2500 rpm. Or lower. Something like a 67/80. I think if we dropped our a/r down to target more like 5-600hp it would spool up in the mid 2000 rpm. It wants to at around 2500 rpm. It will make a couple psi. And honestly just getting the converter stall setup would solve all of this.
(03-22-2016, 06:22 PM)whipplem104 The problem I have with all of this targeting high boost at low rpm is the torque. You end up with unusable power for anything other than doing a burn out. Big lag is annoying but for the 450 hp levels a good setup and turbo selection can get you something that should easily spool by around 2200-2500 rpm. Or lower. Something like a 67/80. I think if we dropped our a/r down to target more like 5-600hp it would spool up in the mid 2000 rpm. It wants to at around 2500 rpm. It will make a couple psi. And honestly just getting the converter stall setup would solve all of this.
FRAS what is the latest on the 605 compound project? Any photos? Thanks.
Sorry guys. Update will come, just to many manifolds to build haha.