Anyone have experience with new FP green UHF ?
#1
Newbie
Thread Starter
Anyone have experience with new FP green UHF ?
Hey guys, I’m looking to buy a turbo for my 8 MR (2.0L stock bottom end). Im looking to make 500whp + but still want to make full boost around 4k if that’s possible on a 2L?
Has anyone had experience with the new UHF green? And what RPM would would it make full boost at? Forced performance says it’s the “best street turbo ever for evos”. Can anyone back this up?
thanks guys👍
Has anyone had experience with the new UHF green? And what RPM would would it make full boost at? Forced performance says it’s the “best street turbo ever for evos”. Can anyone back this up?
thanks guys👍
#2
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They have a dyno chart on their site. In theory, it will be the laggiest Green they offer. The trade-off is less back pressure up top, so it will make more power at same boosts. Here is their comparison with old Red at 22psi boost where it spools a bit faster (since Green is a smaller turbo) and makes more power up top (since less back pressure). I think this is on pump gas, so turbo has a lot left if running E85. But if you want a 4,000 rpm punch, I don't see that happening with this turbo. I expect 400-700 rpm delay (from your target) on this UHF turbo.
Last edited by 2006EvoIXer; Feb 20, 2020 at 10:57 AM.
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Drivermod (Feb 20, 2020)
#3
EvoM Guru
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No dyno results yet but ayoustin bought one to try. At this time anything with the UHF wheel will come with the SS housing.
Its not apples to apples but I've got a red SS housing and a Mivec 2.2. I see 20psi by 4400 or so on the street.. This is 600 rpm later then the MHI housing I had before. The twin scroll red had incredible transient response before.
Now the SS housing will make more power easily. IIRC my car made 470 at 21 psi on the mhi housing. Then 540 at 23psi on the SS housing.
FP makes some neat stuff that performs well. I'm interested to see any of the UHF results.
Its not apples to apples but I've got a red SS housing and a Mivec 2.2. I see 20psi by 4400 or so on the street.. This is 600 rpm later then the MHI housing I had before. The twin scroll red had incredible transient response before.
Now the SS housing will make more power easily. IIRC my car made 470 at 21 psi on the mhi housing. Then 540 at 23psi on the SS housing.
FP makes some neat stuff that performs well. I'm interested to see any of the UHF results.
#4
Evolving Member
They have a dyno chart on their site. In theory, it will be the laggiest Green they offer. The trade-off is less back pressure up top, so it will make more power at same boosts. Here is their comparison with old Red at 22psi boost where it spools a bit faster (since Green is a smaller turbo) and makes more power up top (since less back pressure). I think this is on pump gas, so turbo has a lot left if running E85. But if you want a 4,000 rpm punch, I don't see that happening with this turbo. I expect 400-700 rpm delay (from your target) on this UHF turbo.
Per FP: "One is the current FP Green UHF, the other is the same FP Green UHF laid on top of last years combination with a FPRed model. Your first thought might be "holdup, that new Green spools up the same as that Red and doesn't make the same peak power". Well, last season the engine was a built long rod 2.4 with 10.5:1 CR and that dyno graph is 22psi. This season the engine is a stock 2.0 bottom end and the turbo comes on so fast that we are actually having to open the gate early to keep the torque below the failure level on the stock connecting rods! So we have almost the same power and response this year with a stock engine and FPGreenUHF turbo as we did last year with a built long rod 2.4 with 10.5CR and a bigger turbocharger."
So the dashed line would be the 2.4LR 10.5cr with FP Red and the solid line is the stock 2.0 with UHF Green. But FP doesn't mention the psi on the UHF Green pull or if the FP Red was mhi or ss housing.
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2006EvoIXer (Feb 20, 2020)
#5
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I think you are reading it wrong.
Per FP: "One is the current FP Green UHF, the other is the same FP Green UHF laid on top of last years combination with a FPRed model. Your first thought might be "holdup, that new Green spools up the same as that Red and doesn't make the same peak power". Well, last season the engine was a built long rod 2.4 with 10.5:1 CR and that dyno graph is 22psi. This season the engine is a stock 2.0 bottom end and the turbo comes on so fast that we are actually having to open the gate early to keep the torque below the failure level on the stock connecting rods! So we have almost the same power and response this year with a stock engine and FPGreenUHF turbo as we did last year with a built long rod 2.4 with 10.5CR and a bigger turbocharger."
So the dashed line would be the 2.4LR 10.5cr with FP Red and the solid line is the stock 2.0 with UHF Green. But FP doesn't mention the psi on the UHF Green pull or if the FP Red was mhi or ss housing.
Per FP: "One is the current FP Green UHF, the other is the same FP Green UHF laid on top of last years combination with a FPRed model. Your first thought might be "holdup, that new Green spools up the same as that Red and doesn't make the same peak power". Well, last season the engine was a built long rod 2.4 with 10.5:1 CR and that dyno graph is 22psi. This season the engine is a stock 2.0 bottom end and the turbo comes on so fast that we are actually having to open the gate early to keep the torque below the failure level on the stock connecting rods! So we have almost the same power and response this year with a stock engine and FPGreenUHF turbo as we did last year with a built long rod 2.4 with 10.5CR and a bigger turbocharger."
So the dashed line would be the 2.4LR 10.5cr with FP Red and the solid line is the stock 2.0 with UHF Green. But FP doesn't mention the psi on the UHF Green pull or if the FP Red was mhi or ss housing.
#7
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#8
EvoM Guru
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I think you are reading it wrong.
Per FP: "One is the current FP Green UHF, the other is the same FP Green UHF laid on top of last years combination with a FPRed model. Your first thought might be"holdup, that new Green spools up the same as that Red and doesn't make the same peak power". Well, last season the engine was a built long rod 2.4 with 10.5:1 CR and that dyno graph is 22psi. This season the engine is a stock 2.0 bottom end and the turbo comes on so fast that we are actually having to open the gate early to keep the torque below the failure level on the stock connecting rods! So we have almost the same power and response this year with a stock engine and FPGreenUHF turbo as we did last year with a built long rod 2.4 with 10.5CR and a bigger turbocharger."
So the dashed line would be the 2.4LR 10.5cr with FP Red and the solid line is the stock 2.0 with UHF Green. But FP doesn't mention the psi on the UHF Green pull or if the FP Red was mhi or ss housing.
Per FP: "One is the current FP Green UHF, the other is the same FP Green UHF laid on top of last years combination with a FPRed model. Your first thought might be"holdup, that new Green spools up the same as that Red and doesn't make the same peak power". Well, last season the engine was a built long rod 2.4 with 10.5:1 CR and that dyno graph is 22psi. This season the engine is a stock 2.0 bottom end and the turbo comes on so fast that we are actually having to open the gate early to keep the torque below the failure level on the stock connecting rods! So we have almost the same power and response this year with a stock engine and FPGreenUHF turbo as we did last year with a built long rod 2.4 with 10.5CR and a bigger turbocharger."
So the dashed line would be the 2.4LR 10.5cr with FP Red and the solid line is the stock 2.0 with UHF Green. But FP doesn't mention the psi on the UHF Green pull or if the FP Red was mhi or ss housing.
My MHI red made 400wtq at 4500 with the stock 2.0L, S2's, and no mivec...
#11
Evolved Member
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All the Greens are rated based on Compressor Wheel. The FP54 has the smaller Turbine Wheel, but it so has 2 less blades, so less flow obstruction and less rotating mass. I feel the smaller 9 blade wheels flow better up top than the bigger 11 blade wheels, but not too much difference.
#12
Newbie
Thread Starter
Thanks for the info. So if the UHF green comes on full boost from 4400 - 4700, wouldn’t the FP red come on full boost earlier? I’ve heard of the reds hitting full boost at 4200 on 2Ls in a few cases? I could be wrong though..
#13
Agreed, FP really need to get some better data out there. If the marketing jargon around the UHF is true, it should spool like a FP54 but flow a lot more, allowing you to get closer to max compressor flow. Otherwise a MHI Red seems like a better value proposition with more balanced performance.
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Drivermod (Feb 21, 2020)
#14
Newbie
Thread Starter
Agreed, FP really need to get some better data out there. If the marketing jargon around the UHF is true, it should spool like a FP54 but flow a lot more, allowing you to get closer to max compressor flow. Otherwise a MHI Red seems like a better value proposition with more balanced performance.
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2006EvoIXer (Feb 21, 2020)
#15
Evolving Member
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2006EvoIXer (Feb 21, 2020)