All parts purchased, assembling build
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Re: All parts purchased, assembling build
Sleeved B20 81mm
CP pistons 9:1
Hybrid turbo, was told it was inbetween a 5857 and 5831. .63 hot side, 60 cold side, billet wheel 58mm inducer stage 3 exhaust wheel. T04e housing.
LS Crank
Eagle rods
GSR Head/ITR internals
98 spec ITR cams
AEBS intake manifold
stock LS throttle body (Am I okay with this, or should I find a matching 65mm?)
Ramhorn manifold
3" turbo back exhaust
2.5" charge pipe, decent size fmic
1000cc Rc injectors
walbro 255
aftermarket fuel rail, stock FPR
Water methanol injection 50/50
I am shooting for the maximum horsepower I can get from this, I know my limiting factors are the turbo, fuel injectors, and fuel pump. I'm not sure what this turbo is capable of, but I am guessing I can hit ~30psi? Ive seen 5857's hit 35+ psi. I would like to hit 550whp. Ive also been considering pro 1's, but I'm hoping this turbo has enough breath to hit ~550whp with the ITR cams and water methanol injection.
Thoughts? thanks
CP pistons 9:1
Hybrid turbo, was told it was inbetween a 5857 and 5831. .63 hot side, 60 cold side, billet wheel 58mm inducer stage 3 exhaust wheel. T04e housing.
LS Crank
Eagle rods
GSR Head/ITR internals
98 spec ITR cams
AEBS intake manifold
stock LS throttle body (Am I okay with this, or should I find a matching 65mm?)
Ramhorn manifold
3" turbo back exhaust
2.5" charge pipe, decent size fmic
1000cc Rc injectors
walbro 255
aftermarket fuel rail, stock FPR
Water methanol injection 50/50
I am shooting for the maximum horsepower I can get from this, I know my limiting factors are the turbo, fuel injectors, and fuel pump. I'm not sure what this turbo is capable of, but I am guessing I can hit ~30psi? Ive seen 5857's hit 35+ psi. I would like to hit 550whp. Ive also been considering pro 1's, but I'm hoping this turbo has enough breath to hit ~550whp with the ITR cams and water methanol injection.
Thoughts? thanks
atleast thats what my b20z is.
#3
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#7
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Re: All parts purchased, assembling build
Touche. Any ideas where this turbo can get me to? (googling nao) I'm considering selling this turbo and picking up a tab bit bigger turbo.
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Re: All parts purchased, assembling build
#9
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Re: All parts purchased, assembling build
Are you suggesting buying those, or telling me what my turbo is compared to?
I just came across your posts of a b16 dyno graph with this turbo. Also read shodan's post saying this turbo starts to die down around ~450whp, which is a no no for me.
I just came across your posts of a b16 dyno graph with this turbo. Also read shodan's post saying this turbo starts to die down around ~450whp, which is a no no for me.
#10
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Re: All parts purchased, assembling build
Looks like its rated at 610hp. Seeing that dyno graph you posted... 23-24 psi 475whp on a b16 with the 5831. I believe I can hit 28-30 psi with water methanol with a ls crank, would you agree? If I can push it beyond 30psi, I would, but I'm not knowledgeable of the turbo's capabilities.
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Re: All parts purchased, assembling build
That 610HP is rated at the crankshaft. The 5857 has a completely different turbine profile then the 5831. Both may show that they are the same trim, but the 5857's is the F1-57 turbonetics "big shaft".. much more capable of making close to 550 whp over 30-35 psi of boost pressure. on the other hand, the 5831 , uses the M237 stage 3 that is part of the standard Garrett line, which is not as efficient over 480whp..
At this point the difference is really going to be in the turbine wheel, and the compressor wheel will both be the same. There was no "in between "or "hybrid". Pure either used a Garrett turbine wheel or a turbonetics one.. to fit most of those housings in order to be that cheap. you can easily visually tell the difference between the two to let you know what you have.
For the price you paid, I'm willing to bet that they used less expensive Garrett one, since they are easier to find used, and incorporate as opposed to a larger turbine shaft.
At this point the difference is really going to be in the turbine wheel, and the compressor wheel will both be the same. There was no "in between "or "hybrid". Pure either used a Garrett turbine wheel or a turbonetics one.. to fit most of those housings in order to be that cheap. you can easily visually tell the difference between the two to let you know what you have.
For the price you paid, I'm willing to bet that they used less expensive Garrett one, since they are easier to find used, and incorporate as opposed to a larger turbine shaft.
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Re: All parts purchased, assembling build
Looks like its rated at 610hp. Seeing that dyno graph you posted... 23-24 psi 475whp on a b16 with the 5831. I believe I can hit 28-30 psi with water methanol with a ls crank, would you agree? If I can push it beyond 30psi, I would, but I'm not knowledgeable of the turbo's capabilities.
28-30psi is not where you WANT to be with this type of compressor wheel if it is a precision 6+6 copy.
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Re: All parts purchased, assembling build
Hard to say without having any real data on any of them, the PTE-5831 uses different compressor wheel and turbine wheels than the PTE-5858. I believe the 57's are using the turbonetics or similar exh wheel as Shodan mentioned.
If Comp uses a brass thrust washer that would be a nice improvement over the precision turbos, I really don't know why everyone hasn't abandoned that system yet, but it seems to be making it's way to more platforms.
If Comp uses a brass thrust washer that would be a nice improvement over the precision turbos, I really don't know why everyone hasn't abandoned that system yet, but it seems to be making it's way to more platforms.
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Re: All parts purchased, assembling build
steel thrust bearings really do hate heat, this it what caused a lot of precision turbos to fail back in the day. the steel retainer just built up heat until it blued and killed the bearing. brass is much more efficient at transferring heat.
and now you know my other gripe with precision... no compressor map means it's a crapshoot to know how a given wheel size will perform until you use it.
and now you know my other gripe with precision... no compressor map means it's a crapshoot to know how a given wheel size will perform until you use it.
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