Find me a turbo that fits these critera
03-28-2012, 12:50 PM
#1
Find me a turbo that fits these critera
I am terrible at mapping out stuff on turbo compressor maps.
Basically, I am looking for a turbo that is extremely quick spooling to make 10PSI (ish) as fast as possible at 2-3k RPM and is efficient while doing sowhile ALSO being able to flow an easy 5-6PSI at 7.5kRPM. The PSI it would be pushing out of the compressor would be a linear down curve starting at about 10PSI at 2-3k RPM to approx 5-6PSI at 7500RPM.
Large external wastegate will be involved so turbine housing choke is not a big deal since a huge majority of exhaust gases will be bypassed at high RPM. So a small quick spooling turbine housing is a must.
Pls and thanks.
(if you think there is a tuburbo that has an internal gate (ported gate obviously) that would also meet this criteria I would be open to it.
So far I'm thinking a GT2550R meets this after briefly looking at the compressor map. But which turbine housing would be best?
Am I right in thinking that if it is efficient in flowing 10PSI by 2-3k that it will have no problem with the 5-6psi at high RPM? I'm guessing here that the high rpms stuff doesn't really matter?
Basically, I am looking for a turbo that is extremely quick spooling to make 10PSI (ish) as fast as possible at 2-3k RPM and is efficient while doing sowhile ALSO being able to flow an easy 5-6PSI at 7.5kRPM. The PSI it would be pushing out of the compressor would be a linear down curve starting at about 10PSI at 2-3k RPM to approx 5-6PSI at 7500RPM.
Large external wastegate will be involved so turbine housing choke is not a big deal since a huge majority of exhaust gases will be bypassed at high RPM. So a small quick spooling turbine housing is a must.
Pls and thanks.
(if you think there is a tuburbo that has an internal gate (ported gate obviously) that would also meet this criteria I would be open to it.
So far I'm thinking a GT2550R meets this after briefly looking at the compressor map. But which turbine housing would be best?
Am I right in thinking that if it is efficient in flowing 10PSI by 2-3k that it will have no problem with the 5-6psi at high RPM? I'm guessing here that the high rpms stuff doesn't really matter?
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03-28-2012, 02:55 PM
#8
Boost Czar
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I agree. Would make a really nice 225-250rwhp turbo.
also looks like if you have access to a machine shop, you could make the same happen.
need to go to GT28XX to get the cool Tial v-band housing or the one with integrated EWG.
also looks like if you have access to a machine shop, you could make the same happen.
need to go to GT28XX to get the cool Tial v-band housing or the one with integrated EWG.
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03-28-2012, 03:06 PM
#9
Tour de Franzia
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I have a GT2860rs .86 turbine housing, slight overbore, low compression, and 99 head and I'm seeing about 200wtq at 2700rpm. If I had a VVT head on that car, man it would be crazy low. I realistically feel like the car "moves" at 2250rpm even with the trailer on it. When I'm cruising on the highway, I leave it in 6th unless we go below 2500rpm because it just looks weird and it's not a Corvette, lol.
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03-28-2012, 03:48 PM
#10
Yeah, looks of the milled v-band housing is not a big deal because it will be for the most part completely hidden away. I just want it for the reliability and not having to deal with turbo studs. Downpipe studs I think I can deal with.
This is just for an idea I have working in my head right now, we'll see if it ever comes to fruition.
This is just for an idea I have working in my head right now, we'll see if it ever comes to fruition.
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03-28-2012, 04:54 PM
#12
true... would that solve the problems that some people have had with down pipe studs backing out? I dont really see it being THAT big of a problem?
The only think that I'm somewhat concerned about is the fact that while the turbo may only be pushing 5-6psi out of the compressor, there will be exhaust gasses coming out of the motor will be equivalent to 300+whp on a flowed, cammed head. This is why I'm thinking a big 44mm tial would be a solution.
The only think that I'm somewhat concerned about is the fact that while the turbo may only be pushing 5-6psi out of the compressor, there will be exhaust gasses coming out of the motor will be equivalent to 300+whp on a flowed, cammed head. This is why I'm thinking a big 44mm tial would be a solution.
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03-28-2012, 05:06 PM
#14
Tour de Franzia
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true... would that solve the problems that some people have had with down pipe studs backing out? I dont really see it being THAT big of a problem?
The only think that I'm somewhat concerned about is the fact that while the turbo may only be pushing 5-6psi out of the compressor, there will be exhaust gasses coming out of the motor will be equivalent to 300+whp on a flowed, cammed head. This is why I'm thinking a big 44mm tial would be a solution.
The only think that I'm somewhat concerned about is the fact that while the turbo may only be pushing 5-6psi out of the compressor, there will be exhaust gasses coming out of the motor will be equivalent to 300+whp on a flowed, cammed head. This is why I'm thinking a big 44mm tial would be a solution.
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