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Old 07-10-2018, 11:28 PM   #15
Summerwolf
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Someone makes a kit for the sbd system to move the filter behind the headlight more for cooler air. It has shown to be beneficial.
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Old 07-11-2018, 05:05 PM   #16
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Whatever air temperature is at air intake (before turbo), air will get very hot in the turbo compressor and later cooled in the intercooler. The temperature of air at the intake manifold will be the temperature after intercooler. I don't think ram intake or cold intake will make any difference as long as air intake is not restricting the air flow.
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Old 07-11-2018, 05:38 PM   #17
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Quote:
Originally Posted by mrg666 View Post
Whatever air temperature is at air intake (before turbo), air will get very hot in the turbo compressor and later cooled in the intercooler. The temperature of air at the intake manifold will be the temperature after intercooler. I don't think ram intake or cold intake will make any difference as long as air intake is not restricting the air flow.
This is not the case. No intercooler is 100% efficient and air (or any other subtance) only cools at a certain rate. You are correct that the turbo heats the add. It increases whatever the initial air temp is, the intercooler then cools from this high temp at whatever the cooling rate is. A lower initial air temp is a lower final temp.

Intake are temps are logged by the stock ECU. Take a look and see what they are at full boost on a properly hot engine.

Ever put your hands behind the radiator fan when the engine is hot? Would have to.be 50C (just a guess) but it's really hot.
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Old 07-11-2018, 08:54 PM   #18
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This is not the case. No intercooler is 100% efficient and air (or any other subtance) only cools at a certain rate. You are correct that the turbo heats the add. It increases whatever the initial air temp is, the intercooler then cools from this high temp at whatever the cooling rate is. A lower initial air temp is a lower final temp.

Intake are temps are logged by the stock ECU. Take a look and see what they are at full boost on a properly hot engine.

Ever put your hands behind the radiator fan when the engine is hot? Would have to.be 50C (just a guess) but it's really hot.
See below what I mean
http://www.autospeed.com/cms/article...Maths&A=109789

Intercooler and compressor efficiencies are the most important factors. Cold air or ram intakes are not as important with FI applications. I wouldn't even bother with them unless the air intake is restricting the flow rate.

You can try here to test the temperature variations
http://www.stealth316.com/2-turbotemp.htm
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Old 07-11-2018, 10:41 PM   #19
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Higher intake temp = more hp input required for the compressor to achieve your boost setting, plus the temperature output increases nonlinearly (e.g. a 10 F increase in IAT means greater than 10 F increase in boosted air temp). It's not sensible to say it's trivial without noting the IATs.
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Old 07-12-2018, 12:55 AM   #20
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See below what I mean
http://www.autospeed.com/cms/article...Maths&A=109789

Intercooler and compressor efficiencies are the most important factors. Cold air or ram intakes are not as important with FI applications. I wouldn't even bother with them unless the air intake is restricting the flow rate.

You can try here to test the temperature variations
http://www.stealth316.com/2-turbotemp.htm
Thanks for this link. I like numbers!

Using:
14 PSI boost (what I run)
70% turbo and intercooler efficiency
20C ambient temp
50C engine bay temp

Those calcs say 58C or 46C intake air temps depending on whether you source ambient or engine bay air. So you are right in that this 30C difference is only a 12C rise at the end, but it's still a 12C rise.
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Old 07-12-2018, 01:35 AM   #21
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^and that's ignoring the 6-7 hp that the compressor will require to compress that hotter air, which is completely separate from the power loss due to IAT rise post-intercooler
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Old 04-21-2020, 06:33 AM   #22
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Hello all, I'm new to the forum.


I wonder if something like this would be beneficial/practically functional? (the intake ram shield in the photo)


Would it work better with the stock helmholtz resonators? or would it function better with those resonators removed?


What are your intake cooling solutions?



Thanks in advance for sharing your input & feedback.

Last edited by DenDog220; 04-21-2020 at 06:50 AM.
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Old 04-21-2020, 10:19 AM   #23
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.Stock is a good solution. Nothing like blocking off your radiator to get cool air in.
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Old 04-21-2020, 11:15 AM   #24
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Quote:
Originally Posted by DenDog220 View Post




Hello all, I'm new to the forum.


I wonder if something like this would be beneficial/practically functional? (the intake ram shield in the photo)


Would it work better with the stock helmholtz resonators? or would it function better with those resonators removed?


What are your intake cooling solutions?



Thanks in advance for sharing your input & feedback.
NVM: I see there is an intake on the top.

That is for cooling. It directs all the air coming in through the bumper opening to the radiator and prevents it from "leaking" around it.


https://www.counterspacegarage.com/a...r-intake-scoop
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Last edited by NoHaveMSG; 04-21-2020 at 11:37 AM.
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Old 09-11-2020, 01:01 PM   #25
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Quote:
Originally Posted by Summerwolf View Post
Someone makes a kit for the sbd system to move the filter behind the headlight more for cooler air. It has shown to be beneficial.
More info on this? I would presume it'd also work for the GReddy T518Z kit, as the SBD one is based on it.
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