In search of ALLOFIT numbers's with Precision 4828: FOR SCIENCE!
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This is just something I am rolling around in my head. Nitrodann is talking about going full tilt external wastegate potato, and it's going to be interesting to see what kind of power it creates "ALLOFIT" as 18psi put it.
Well, I don't have the money to run the full potential of my Precision 4828 anytime soon but I am interested in seeing what it will do in comparison with a standard Disco-potato which is what I understand it is based on.
So, ideally I am interested in shipping my turbo to someone (again, ideally with a potato already) who can max it out to see if it has a heigher ceiling than a 2860 and how it responds throughout the powerband in comparison. For science.
Obviously I wouldn't go into this with someone I don't know on here through reputation, and we would have to have some sort of agreement that if the turbo is munched we split the cost of rebuild/replace (not necessarily 50/50) but I am sure we can work something equitable out. Also, ideally this would take place over the cooler months because i'd like to drive my car as late into the year as possible.
I know many here that are running high HP don't choose the 2860 so I understand if a direct comparison isn't possible but I am still open to considering options.
Maybe ideally we pick one person to dyno 2554, 2560, 2860, 2870, 2876?
Just thinking out loud at this point...
Well, I don't have the money to run the full potential of my Precision 4828 anytime soon but I am interested in seeing what it will do in comparison with a standard Disco-potato which is what I understand it is based on.
So, ideally I am interested in shipping my turbo to someone (again, ideally with a potato already) who can max it out to see if it has a heigher ceiling than a 2860 and how it responds throughout the powerband in comparison. For science.
Obviously I wouldn't go into this with someone I don't know on here through reputation, and we would have to have some sort of agreement that if the turbo is munched we split the cost of rebuild/replace (not necessarily 50/50) but I am sure we can work something equitable out. Also, ideally this would take place over the cooler months because i'd like to drive my car as late into the year as possible.
I know many here that are running high HP don't choose the 2860 so I understand if a direct comparison isn't possible but I am still open to considering options.
Maybe ideally we pick one person to dyno 2554, 2560, 2860, 2870, 2876?
Just thinking out loud at this point...
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This is just something I am rolling around in my head. Nitrodann is talking about going full tilt external wastegate potato, and it's going to be interesting to see what kind of power it creates "ALLOFIT" as 18psi put it.
Well, I don't have the money to run the full potential of my Precision 4828 anytime soon but I am interested in seeing what it will do in comparison with a standard Disco-potato which is what I understand it is based on.
So, ideally I am interested in shipping my turbo to someone (again, ideally with a potato already) who can max it out to see if it has a heigher ceiling than a 2860 and how it responds throughout the powerband in comparison. For science.
Obviously I wouldn't go into this with someone I don't know on here through reputation, and we would have to have some sort of agreement that if the turbo is munched we split the cost of rebuild/replace (not necessarily 50/50) but I am sure we can work something equitable out. Also, ideally this would take place over the cooler months because i'd like to drive my car as late into the year as possible.
I know many here that are running high HP don't choose the 2860 so I understand if a direct comparison isn't possible but I am still open to considering options.
Maybe ideally we pick one person to dyno 2554, 2560, 2860, 2870, 2876?
Just thinking out loud at this point...
Well, I don't have the money to run the full potential of my Precision 4828 anytime soon but I am interested in seeing what it will do in comparison with a standard Disco-potato which is what I understand it is based on.
So, ideally I am interested in shipping my turbo to someone (again, ideally with a potato already) who can max it out to see if it has a heigher ceiling than a 2860 and how it responds throughout the powerband in comparison. For science.
Obviously I wouldn't go into this with someone I don't know on here through reputation, and we would have to have some sort of agreement that if the turbo is munched we split the cost of rebuild/replace (not necessarily 50/50) but I am sure we can work something equitable out. Also, ideally this would take place over the cooler months because i'd like to drive my car as late into the year as possible.
I know many here that are running high HP don't choose the 2860 so I understand if a direct comparison isn't possible but I am still open to considering options.
Maybe ideally we pick one person to dyno 2554, 2560, 2860, 2870, 2876?
Just thinking out loud at this point...
#4
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That's the problem. Precision doesn't publish compressor maps...
Where are you located Ben?
Also, Lars looks like a better comparison for now. 7 months might be doable. That places it in the middle of the winter. Car usually doesn't go back on the road until March sometime.
Where are you located Ben?
Also, Lars looks like a better comparison for now. 7 months might be doable. That places it in the middle of the winter. Car usually doesn't go back on the road until March sometime.
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That's the problem. Precision doesn't publish compressor maps...
Where are you located Ben?
Also, Lars looks like a better comparison for now. 7 months might be doable. That places it in the middle of the winter. Car usually doesn't go back on the road until March sometime.
Where are you located Ben?
Also, Lars looks like a better comparison for now. 7 months might be doable. That places it in the middle of the winter. Car usually doesn't go back on the road until March sometime.
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Yeah, T2 flange. I'd really feel bad you doing all that work though.
Btw, I am not opposed to making the turbo a bit of a **** this winter. I can come to indy perhaps and help the swap.
Btw, I am not opposed to making the turbo a bit of a **** this winter. I can come to indy perhaps and help the swap.
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Opening this up for more ideas - would anyone be interested in volunteering a few more turbos to try? Obviously we would also need time to tune the EBC and dyno time unless we were just doing virtual dyno numbers, but with the amount of work going into this I'd think an actual dyno would give us the most usable information.
Do we need to do a fund-raiser?
Also, It appears that the turbine housing is the same between 2871 and 2860 so you (Lars) may be able to just run my turbo in your current housing. That would be far less work, if it works. Though, it wouldn't give us perfect numbers for internally wastegated but that's ok, comparisons are what I am looking for.
Do we need to do a fund-raiser?
Also, It appears that the turbine housing is the same between 2871 and 2860 so you (Lars) may be able to just run my turbo in your current housing. That would be far less work, if it works. Though, it wouldn't give us perfect numbers for internally wastegated but that's ok, comparisons are what I am looking for.
Last edited by Chiburbian; 08-28-2014 at 05:51 PM.
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Opening this up for more ideas - would anyone be interested in volunteering a few more turbos to try? Obviously we would also need time to tune the EBC and dyno time unless we were just doing virtual dyno numbers, but with the amount of work going into this I'd think an actual dyno would give us the most usable information.
Do we need to do a fund-raiser?
Also, It appears that the turbine housing is the same between 2871 and 2860 so you (Lars) may be able to just run my turbo in your current housing. That would be far less work, if it works. Though, it wouldn't give us perfect numbers for internally wastegated but that's ok, comparisons are what I am looking for.
Do we need to do a fund-raiser?
Also, It appears that the turbine housing is the same between 2871 and 2860 so you (Lars) may be able to just run my turbo in your current housing. That would be far less work, if it works. Though, it wouldn't give us perfect numbers for internally wastegated but that's ok, comparisons are what I am looking for.
This whole thing also comes down to my built motor not randomly loosing oil pressure sometime shortly after getting it running. I don't have a good track record of that not happening over the past 4 years.
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Ben do you have a transmission to handle ALLOFIT lined up? I know you have the TII for the blue car but you'd have to get/fab an adapter plate for the red one. I (finally) ordered a TIG welder which should get here in the next week or so if there are downpipe differences.
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Ben do you have a transmission to handle ALLOFIT lined up? I know you have the TII for the blue car but you'd have to get/fab an adapter plate for the red one. I (finally) ordered a TIG welder which should get here in the next week or so if there are downpipe differences.
I have a spare 5spd.
![rofl](https://www.miataturbo.net/images/smilies/rofl1.gif)
But really, i probably need to move to a 6spd if i'm going to go ALLOFIT on this 2554 anyways. I bet the torque spike would eat this thing alive.