Intake Air Temperature - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

sw20kosh · 06-19-2013, 12:59 AM

I tried doing a search but couldn't find an answer. Does anyone know which (if any) turbo/supercharger kits use a new air intake temperature sensor in order to read the air post turbo/supercharger instead of at the MAF (pre-turbo)?

Or do all the kits just relocate the MAF/IAT unit to post intercooler (down stream of intercooler)

jamesm · 06-19-2013, 01:14 AM

on my kit they did a blow-through maf. the intake temps were around 105deg with 95deg ambient during test runs.

No Limit Motorsport · 06-19-2013, 08:05 AM

Quote:

Originally Posted by sw20kosh

I tried doing a search but couldn't find an answer. Does anyone know which (if any) turbo/supercharger kits use a new air intake temperature sensor in order to read the air post turbo/supercharger instead of at the MAF (pre-turbo)?

Or do all the kits just relocate the MAF/IAT unit to post intercooler (down stream of intercooler)

I don't know of any that use a seperate IAT sensor yet. However I bet once we get full speed density tuning, you will see people making the switch and ditching the MAF altogether. I will be doing this for sure.

Sportsguy83 · 06-19-2013, 08:14 AM

Quote:

Originally Posted by sw20kosh

I tried doing a search but couldn't find an answer. Does anyone know which (if any) turbo/supercharger kits use a new air intake temperature sensor in order to read the air post turbo/supercharger instead of at the MAF (pre-turbo)?

Or do all the kits just relocate the MAF/IAT unit to post intercooler (down stream of intercooler)

Off the top of my head, FA20club moves the MAF to right before throttle, post turbo, post BOV and post IC. I would have liked that too on my kit.

Foobar · 06-19-2013, 09:50 AM

Quote:

Originally Posted by sw20kosh

I tried doing a search but couldn't find an answer. Does anyone know which (if any) turbo/supercharger kits use a new air intake temperature sensor in order to read the air post turbo/supercharger instead of at the MAF (pre-turbo)?

Or do all the kits just relocate the MAF/IAT unit to post intercooler (down stream of intercooler)

The Vortech is post-charger.

OrbitalEllipses · 06-19-2013, 10:12 AM

Haven't seen any kits that include a NEW IAT. Having two is valuable information!

sw20kosh · 06-19-2013, 11:39 AM

Thanks for the replies. It is as I had expected. Kits either relocate the whole MAF or they just leave it pre-turbo.

The reason my application needs a new standalone IAT is because I want to set up a 2nd failsafe for my water/meth injection. It would be a failsafe incorporated in the tune. To do this I would need the IAT in the area post twinscrew blower. When that IAT sees cool temps it means the meth is injecting. If it sees 200 C temps then the meth is not inj properly. In the later case timing would be pulled and fuel added.

Just need to find an IAT that can work with the stock wiring(splicing in) and ecu. Please let me know if you come across anything or have any ideas.

Thanks.

King Tut · 06-19-2013, 12:15 PM

Quote:

Originally Posted by Sportsguy83

Off the top of my head, FA20club moves the MAF to right before throttle, post turbo, post BOV and post IC. I would have liked that too on my kit.

So does the Full Blown kit. You get pre throttle body IAT that way.

King Tut · 06-19-2013, 12:19 PM

Quote:

Originally Posted by sw20kosh

Thanks for the replies. It is as I had expected. Kits either relocate the whole MAF or they just leave it pre-turbo.

The reason my application needs a new standalone IAT is because I want to set up a 2nd failsafe for my water/meth injection. It would be a failsafe incorporated in the tune. To do this I would need the IAT in the area post twinscrew blower. When that IAT sees cool temps it means the meth is injecting. If it sees 200 C temps then the meth is not inj properly. In the later case timing would be pulled and fuel added.

Just need to find an IAT that can work with the stock wiring(splicing in) and ecu. Please let me know if you come across anything or have any ideas.

Thanks.

So you are looking to drill and tap one of the intake manifold runners to mount this temp sensor? The GM IAT sensor shoukd work for that and is popular in standalone ecu uses. As to wiring it into the OEM ECU good luck.

mad_sb · 06-19-2013, 12:43 PM

Quote:

Originally Posted by sw20kosh

Thanks for the replies. It is as I had expected. Kits either relocate the whole MAF or they just leave it pre-turbo.

The reason my application needs a new standalone IAT is because I want to set up a 2nd failsafe for my water/meth injection. It would be a failsafe incorporated in the tune. To do this I would need the IAT in the area post twinscrew blower. When that IAT sees cool temps it means the meth is injecting. If it sees 200 C temps then the meth is not inj properly. In the later case timing would be pulled and fuel added.

Just need to find an IAT that can work with the stock wiring(splicing in) and ecu. Please let me know if you come across anything or have any ideas.

Thanks.

Have you looked at the aquamist products? they have flow based failsafe that will do the same thing.. I think a few other companies also use a flow based failsafe (triggers on both low and high flow with adjustable window)...

OrbitalEllipses · 06-19-2013, 12:45 PM

Quote:

Originally Posted by King Tut

So you are looking to drill and tap one of the intake manifold runners to mount this temp sensor? The GM IAT sensor shoukd work for that and is popular in standalone ecu uses. As to wiring it into the OEM ECU good luck.

I was going to suggest a GM IAT, but I had only seen it used with Hydra, AEM, etc. so I just didn't say anything. It's POSSIBLE that with Ecutek you could cannibalize some function that you don't need, similar to how Ecutek uses the EVAP charcoal solenoid for boost.

No Limit Motorsport · 06-19-2013, 12:58 PM

Quote:

Originally Posted by sw20kosh

Thanks for the replies. It is as I had expected. Kits either relocate the whole MAF or they just leave it pre-turbo.

The reason my application needs a new standalone IAT is because I want to set up a 2nd failsafe for my water/meth injection. It would be a failsafe incorporated in the tune. To do this I would need the IAT in the area post twinscrew blower. When that IAT sees cool temps it means the meth is injecting. If it sees 200 C temps then the meth is not inj properly. In the later case timing would be pulled and fuel added.

Just need to find an IAT that can work with the stock wiring(splicing in) and ecu. Please let me know if you come across anything or have any ideas.

Thanks.

The GM IAT sensor works good with the stock ECU 02-13 WRX/STI with Cobb or Open Source speed density software. I wouldn't be surprised if it works with our cars as well.

sw20kosh · 06-19-2013, 01:38 PM

Quote:

Originally Posted by mad_sb

Have you looked at the aquamist products? they have flow based failsafe that will do the same thing.. I think a few other companies also use a flow based failsafe (triggers on both low and high flow with adjustable window)...

Already installed and working great! That is why I said "a 2nd failsafe".

I'd like to have a back up in case something goes wrong with that one.

A failsafe for a failsafe. Never can be too careful when it comes to blowing an engine...

OrbitalEllipses · 06-19-2013, 01:51 PM

Quote:

Originally Posted by sw20kosh

Never can be too careful when it comes to blowing an engine...

Use protection...

06-19-2013, 12:59 AM	#1
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Intake Air Temperature I tried doing a search but couldn't find an answer. Does anyone know which (if any) turbo/supercharger kits use a new air intake temperature sensor in order to read the air post turbo/supercharger instead of at the MAF (pre-turbo)? Or do all the kits just relocate the MAF/IAT unit to post intercooler (down stream of intercooler)

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06-19-2013, 01:14 AM	#2
jamesm Banned Join Date: Mar 2013 Drives: 2013 FR-S Location: Orlando, FL Posts: 2,929 Thanks: 1,166 Thanked 2,293 Times in 1,180 Posts Mentioned: 313 Post(s) Tagged: 4 Thread(s)	on my kit they did a blow-through maf. the intake temps were around 105deg with 95deg ambient during test runs.

06-19-2013, 10:12 AM	#6
OrbitalEllipses Banned Join Date: Jan 2012 Drives: Attitude Location: MD Posts: 10,046 Thanks: 884 Thanked 4,889 Times in 2,902 Posts Mentioned: 123 Post(s) Tagged: 4 Thread(s)	Haven't seen any kits that include a NEW IAT. Having two is valuable information!

06-19-2013, 11:39 AM	#7
sw20kosh Senior Member Join Date: Jul 2012 Drives: 2013 Black FR-S Location: SF Posts: 3,030 Thanks: 881 Thanked 2,014 Times in 990 Posts Mentioned: 153 Post(s) Tagged: 1 Thread(s)	Thanks for the replies. It is as I had expected. Kits either relocate the whole MAF or they just leave it pre-turbo. The reason my application needs a new standalone IAT is because I want to set up a 2nd failsafe for my water/meth injection. It would be a failsafe incorporated in the tune. To do this I would need the IAT in the area post twinscrew blower. When that IAT sees cool temps it means the meth is injecting. If it sees 200 C temps then the meth is not inj properly. In the later case timing would be pulled and fuel added. Just need to find an IAT that can work with the stock wiring(splicing in) and ecu. Please let me know if you come across anything or have any ideas. Thanks.

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