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FMIC Comparison - Data Compilation
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02-06-2010, 08:55 AM | #111 |
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we need INDEPENDANT 2-3-4 gear datalogs from the following manufacturers FMICS:
-HPF -AA -RPI -VK -Stett -ETS -forge please make sure the tests are done between 58-85 degree ambient temps and at a boost level of 13.5-14.5 psi so we can standardize the testing! log boost, ait and rpm |
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02-06-2010, 08:56 AM | #112 | |
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Quote:
To further understand what might be going on here, I would like to know whether different starting temps have an effect on the overall temp gain during a run. Would the same car with the same FMIC starting from a temp of 60 degrees see the same increase in temps of the same duration run as if it was doing a run from 100 degrees? For example - Run 1 - a 10 second 2 -3 -4 gear run with AITs starting at 60 degrees and ending at 80 degrees would clearly have had an overall increase of 20 degrees during the run. If run 2 started with 100 degree AITs, would the laws of thermal dynamics expect the same car, with an exact duplicate of run 1 (with the same ambient temps etc), to end with AITs at 120 degrees? or does a law of diminishing heat gain kick in as starting AITs increase? |
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02-06-2010, 09:31 AM | #113 | |
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Knowledge is Power!
I was not aiming that quote at anyone in particular, I just want to open peoples eyes as to the realities of the FMIC landscape and things to look for in regards to real data vs marketing hype... Interestingly enough i use a very good turbo outlet temp calculator that also generates a FMIC efficiency using data that is provided in this thread that answers your ?'s about starting and ending temps.
http://www.stealth316.com/2-turbotemp.htm using this calculator with the provided data we can see how efficient each unit is in a real world situation and is all based in Physics Law(an exact science). heres the data i got using the calculator, feel free to try it yourself its actually very eye opening. When designing a FMIC I use this during prototyping to determine the best balance of internal fin density and charge row/ambient row height as we don't use an "off the shelf" core! Turbo Outlet Temp Calculator inlet temperature-(use the ambient temperature to standardize the test) input pressure-14.5(atmospheric pressure this does not change unless you are at altitude) output pressure-(this is the boost pressure seen prior to the fmic, add pressure drop plus datalogged pressure for this #) compressor efficiency-70%(this can be found by mapping the #'s on a compressor map OR to datalog intercooler inlet temps, lets use 70% to standardize the testing as all are running similar boost levels) Outlet Temp- (this is the temperature leaving the turbo and entering the FMIC) Intercooler Outlet Temperature and Pressure Calculator IC input Temperature-(this is the Outlet Temp from the previous calculation) IC Efficiency-(This is the how efficient the FMIC is in this test, it is also the factor you play with to try and match up to the known plenum temp(ending datalogged ait at the end of the run)) IC Pressure loss-.5 (this is the pressure drop through the core, lets use .5 psi to standardize the test) Ambient Temp-(this is the ambient temp and also the turbo inlet temp) Plenum Temp-(this is the datalogged ait temp at the end of the 2-3-4 gear run) now lets crunch the #'s... HELIX-Intercooler Efficiency 86% through 3 gears Turbo Outlet Temp Calculator inlet temperature-85 input pressure-14.5 output pressure-14 compressor efficiency-70% Outlet Temp- 249 Intercooler Outlet Temperature and Pressure Calculator IC input Temperature-249 IC Pressure loss-.5 Ambient Temp-85 Plenum Temp-108 IC Efficiency-86% ETS-Intercooler Efficiency 80% through 3 gears Turbo Outlet Temp Calculator inlet temperature-50 input pressure-14.5 output pressure-? compressor efficiency-***using datalogged output temp*** Outlet Temp- 248 ***taken from datalog*** Intercooler Outlet Temperature and Pressure Calculator IC input Temperature-248 IC Pressure loss-.5 Ambient Temp-50 Plenum Temp-91 IC Efficiency-80% AMS-Intercooler Efficiency 79% through 3 gears Turbo Outlet Temp Calculator inlet temperature-58 input pressure-14.5 output pressure-14 compressor efficiency-70% Outlet Temp- 214 Intercooler Outlet Temperature and Pressure Calculator IC input Temperature-214 IC Pressure loss-.5 Ambient Temp-58 Plenum Temp-112 IC Efficiency-79% SPEARCO/Code 3-Intercooler Efficiency 54% through 3 gears Turbo Outlet Temp Calculator inlet temperature-65 input pressure-14.5 output pressure-14 compressor efficiency-70% Outlet Temp- 223 Intercooler Outlet Temperature and Pressure Calculator IC input Temperature-223 IC Pressure loss-.5 Ambient Temp-65 Plenum Temp-139 IC Efficiency-54% What this data shows is the efficency and also the FMICs ability to thwart heatsoak through 2-3-4 gears, you can also get single gear efficiencies using the data provided Quote:
Last edited by TurboBullett@Ambient Thermal Management; 03-03-2010 at 04:25 PM.. |
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02-06-2010, 10:46 AM | #115 |
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02-06-2010, 11:51 AM | #116 |
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Well I searched long and hard looking at every single intercooler and I luckily by chance (was given the wrong inventory information and bad customer service when trying to purchase a helix) and I will be recieving the HPF intercooler quite soon I would be glad to post a log using my BT tool.
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02-06-2010, 12:21 PM | #117 |
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02-07-2010, 11:14 AM | #119 | |
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FYI - I'm the one who posted the AMS FMIC datalog and I forgot to point out that it was performed on a slightly uphill stretch of road. Therefore, it was on boost longer than if it were on a flat stretch of road. That being said, the Helix FMIC does appear to be more efficient. I think I may have been the first one to post an IAT datalog for an AMS FMIC.
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02-08-2010, 04:51 PM | #122 |
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02-08-2010, 06:55 PM | #126 |
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02-08-2010, 07:09 PM | #127 |
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If thats the case it weighs more than the HPF one which weighs 22 pounds I believe...The only one that has a support brace is HPF, thats another reason why I went with theirs along with using the c-clip, and also their reputation
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02-09-2010, 02:51 AM | #128 |
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guess no one has any info on the Spearco... =P
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02-12-2010, 06:36 AM | #130 |
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bump
we still need INDEPENDANT 2-3-4 gear datalogs from the following manufacturers FMICS: -HPF -AA -RPI -VK -Stett -ETS -forge please make sure the tests are done between 58-85 degree ambient temps and at a boost level of 13.5-14.5 psi so we can standardize the testing! log boost, ait and rpm |
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03-01-2010, 06:52 PM | #132 |
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BUMP
we still need INDEPENDANT 2-3-4 gear datalogs from the following manufacturers FMICS: -HPF -AA -RPI -VK -Stett -ETS -forge please make sure the tests are done between 58-85 degree ambient temps and at a boost level of 13.5-14.5 psi so we can standardize the testing! log boost, ait and rpm as well as ambient temp |
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