Confused!!!
07-10-2013, 12:14 PM
#1
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Confused!!!
I know there are threads explaining the necessary parts for the MDX intake manifold, ZDX TB, cat backs etc etc but those threads are confusing as various members are using these parts for TL, TL Type-S and V6 Accords. I have a base 2008 TL/5AT and wish to add more performance using a combination of parts that I listed above. Can anyone guide me in the right direction? I'm seeking to do the MDX manifold, ZDX TB, cat back, J pipe and aftermarket cats and/or test pipes. I just need a list of good parts, the Acura part numbers/names of parts and potential of additional power after the parts are installed. Any information is greatly appreciated. Thank you!
07-10-2013, 03:31 PM
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07-10-2013, 04:25 PM
#4
Do you mean the ZDX IM and not the MDX?
Everything you need to know is here on the first post:
https://acurazine.com/forums/3g-tl-performance-parts-modifications-112/my-3-7-mani-zdx-tb-pnp-runners-build-thread-870327/
Everything you need to know is here on the first post:
https://acurazine.com/forums/3g-tl-performance-parts-modifications-112/my-3-7-mani-zdx-tb-pnp-runners-build-thread-870327/
07-10-2013, 06:09 PM
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Do you mean the ZDX IM and not the MDX?
Everything you need to know is here on the first post:
https://acurazine.com/forums/showthread.php?t=870327
Everything you need to know is here on the first post:
https://acurazine.com/forums/showthread.php?t=870327
07-10-2013, 06:15 PM
#6
For those thinking of doing the 3.7 IM/TB swap, I have compiled the relevant information from this thread to update this first post with.
This mod is recommended for people who are already bolted on with exhaust mods and want to take their car further, potentially with the tuning given in the new Flashpro solution for 07-08 TL's.
Estimated costs
1) ~ $500 for the 3.7 IM, TB, and hardware
2) ~ $150 for the IM cover plate if you have 04-06 TL
3) $100-150 for boring the Throttle body (optional)
4) $350 for porting and polishing lower intake runners and port-matching to the intake manifolds outlets, and gasket matching them.
Required Parts for swapping a 3.7 IM and Throttle body onto all 04-08 TL (base and Type-S)
94050-08080 NUT, FLANGE (8MM) 4 $0.19 $0.76
95701-08060-08 BOLT, FLANGE (8X60) 4 $0.88 $3.52
17105-RCJ-A01 GASKET, IN. MANIFOLD 1 $36.75 $36.75
92900-08050-3B BOLT, STUD (8X50) 4 $0.81 $3.24
17160-RK2-A00 MANIFOLD, IN. 1 $224.75 $224.75
16176-RYE-A10 GASKET, THROTTLE BODY 3 $0.47 $1.41
16400-RYE-A11 THROTTLE BODY, ELECTRONIC CONTROL (GMD8B) 1 $192.54 $192.54
90104-RCJ-A00 BOLT, SPECIAL FLANGE (6X18) -> get a few of these - you'll need 2 of them when you swap your IM cover plate to the new manifold because the 04-08 mani uses a couple of studs with nuts that are not present in the 3.7 manifold. On the 3.7 these are just bolt holes that you will want to fill with these bolts.
Additional Required Parts for 04-06 TL
17140-RKB-013 COVER, IN. MANIFOLD (UPPER) - this is the cover plate. This part # includes the cover plate gasket as well
Installation tips
1) Be very careful to NOT over-torque the IM cover plate bolts. It's very easy to snap the head on them
2) For the throttle body, you cannot use the MAP sensor from the 3.7 (the black sensor sticking out of the top of the TB), UNLESS you dremel the guides off so that your connector will fit over it. So you have two options. The first option is to swap your MAP sensor from your stock TB over to the new 3.7 TB, OR you can do as Anil (swoosh) did which is dremel out the guides on the 3.7 sensor so that your stock connector will fit, he took the following photo to illustrate this:
Some people who are using the 3.7 MAP sensor have reported smoother idle and less tip-in issues when letting off the gas.
3) air intake coupler - remember your 3.7 TB has an inlet size of slightly over 3.5" - I had to seriously fight with the rubber coupler on my AEM V2 intake to get it to slide over. It did fit and seal completely, but it was a pain in the ass. If you have a stock intake on your car, it may not have enough flex in the coupling to fully attach to the new Throttle body.
4) Relocation of IAT sensor - the 3.7 manifold doesn't have a bung for the IAT sensor. IF you have an AEM V2 intake, there is a bung for it near where the intake attaches to the throttlebody, facing the front of the car. You can't miss it. It's sole purpose is to house your IAT if you need to, so you can thread it right in.
a) IF YOU DO NOT HAVE AN AEM V2 INTAKE: you can relocate the IAT per Innacurate's thread here: https://acurazine.com/forums/showthr...age=3&t=803036
b) IAT location on a 2004-2006 TL is on the neck of the IM right where it mates with the Throttle body
c) IAT location on a 2007-2008 TL is on the main body of the IM
What to Expect After the Install
1) bouncy idle initially, ECU will figure it out for the most part after a few days, although again it sounds like if you use the MAP sensor from the 3.7 TB it will work itself out a bit faster and better
2) potential CEL for the relocation of your IAT sensor. This is the computer going crazy and is temporary - just have an OBD2 scanner reset the code and you should be good. I only got it once after driving 2 miles after the install. Haven't seen it since 5k miles later
3) minor bucking between 2500-3000 RPM's if you are just cruising and have your foot on the gas slightly - maybe 5% throttle. I also have noticed it in cruise control as well. A tune if you have Flashpro will fix this for sure.
Performance Gains
Weight reduced by a few pounds (3.7 manifold is magnesium and the 04-08 IM is aluminum)
Air/Fuel ratios evened out quite well with this mod - I had been previously running very rich with all my exhaust mods, around 11.4. Once the 3.7 was on and air flow was increased, it leaned out to more expected levels of 12.3 or so. Pretty good for stock ECU.
Without a port and polish, just the 3.7 IM/TB, I saw about 7 whp / 5 wtq gain, and I was already fully bolted on with exhaust, HFPC's, jpipe, and aem v2 intake. This is also without a tune. Here is my dyno chart of before/after:
It is assumed that a 3.2 TL would gain more from this mod as the 3.5 Type-S intake manifold flows more already, so the jump to the 3.7 isn't as big as it would be from the 3.2 platform.
With port and polish expect minimal gains over what I got - the 3.7 flows very well already. There are gains to be had with ported runners, though. to the tune of 5-10 whp. Also if you already have a PnP'ed intake manifold on your current 3.2 or 3.5 manifold, this swap to the 3.7 won't gain you much if anything.
Conclusion
This is a very important mod if you are planning to do an NA build on your car, or a supercharged application. If you are turbocharged, well....GTFO libert69 you already have 500 whp
It's an important mod to actually take advantage of any aftermarket CAI that you buy, and again is very important if you plan to have any work done on the heads, cams, etc.
Will benefit from a tune greatly but still offers good mid-range and top-end gains.
This mod is recommended for people who are already bolted on with exhaust mods and want to take their car further, potentially with the tuning given in the new Flashpro solution for 07-08 TL's.
Estimated costs
1) ~ $500 for the 3.7 IM, TB, and hardware
2) ~ $150 for the IM cover plate if you have 04-06 TL
3) $100-150 for boring the Throttle body (optional)
4) $350 for porting and polishing lower intake runners and port-matching to the intake manifolds outlets, and gasket matching them.
Required Parts for swapping a 3.7 IM and Throttle body onto all 04-08 TL (base and Type-S)
94050-08080 NUT, FLANGE (8MM) 4 $0.19 $0.76
95701-08060-08 BOLT, FLANGE (8X60) 4 $0.88 $3.52
17105-RCJ-A01 GASKET, IN. MANIFOLD 1 $36.75 $36.75
92900-08050-3B BOLT, STUD (8X50) 4 $0.81 $3.24
17160-RK2-A00 MANIFOLD, IN. 1 $224.75 $224.75
16176-RYE-A10 GASKET, THROTTLE BODY 3 $0.47 $1.41
16400-RYE-A11 THROTTLE BODY, ELECTRONIC CONTROL (GMD8B) 1 $192.54 $192.54
90104-RCJ-A00 BOLT, SPECIAL FLANGE (6X18) -> get a few of these - you'll need 2 of them when you swap your IM cover plate to the new manifold because the 04-08 mani uses a couple of studs with nuts that are not present in the 3.7 manifold. On the 3.7 these are just bolt holes that you will want to fill with these bolts.
Additional Required Parts for 04-06 TL
17140-RKB-013 COVER, IN. MANIFOLD (UPPER) - this is the cover plate. This part # includes the cover plate gasket as well
Installation tips
1) Be very careful to NOT over-torque the IM cover plate bolts. It's very easy to snap the head on them
2) For the throttle body, you cannot use the MAP sensor from the 3.7 (the black sensor sticking out of the top of the TB), UNLESS you dremel the guides off so that your connector will fit over it. So you have two options. The first option is to swap your MAP sensor from your stock TB over to the new 3.7 TB, OR you can do as Anil (swoosh) did which is dremel out the guides on the 3.7 sensor so that your stock connector will fit, he took the following photo to illustrate this:
Some people who are using the 3.7 MAP sensor have reported smoother idle and less tip-in issues when letting off the gas.
3) air intake coupler - remember your 3.7 TB has an inlet size of slightly over 3.5" - I had to seriously fight with the rubber coupler on my AEM V2 intake to get it to slide over. It did fit and seal completely, but it was a pain in the ass. If you have a stock intake on your car, it may not have enough flex in the coupling to fully attach to the new Throttle body.
4) Relocation of IAT sensor - the 3.7 manifold doesn't have a bung for the IAT sensor. IF you have an AEM V2 intake, there is a bung for it near where the intake attaches to the throttlebody, facing the front of the car. You can't miss it. It's sole purpose is to house your IAT if you need to, so you can thread it right in.
a) IF YOU DO NOT HAVE AN AEM V2 INTAKE: you can relocate the IAT per Innacurate's thread here: https://acurazine.com/forums/showthr...age=3&t=803036
b) IAT location on a 2004-2006 TL is on the neck of the IM right where it mates with the Throttle body
c) IAT location on a 2007-2008 TL is on the main body of the IM
What to Expect After the Install
1) bouncy idle initially, ECU will figure it out for the most part after a few days, although again it sounds like if you use the MAP sensor from the 3.7 TB it will work itself out a bit faster and better
2) potential CEL for the relocation of your IAT sensor. This is the computer going crazy and is temporary - just have an OBD2 scanner reset the code and you should be good. I only got it once after driving 2 miles after the install. Haven't seen it since 5k miles later
3) minor bucking between 2500-3000 RPM's if you are just cruising and have your foot on the gas slightly - maybe 5% throttle. I also have noticed it in cruise control as well. A tune if you have Flashpro will fix this for sure.
Performance Gains
Weight reduced by a few pounds (3.7 manifold is magnesium and the 04-08 IM is aluminum)
Air/Fuel ratios evened out quite well with this mod - I had been previously running very rich with all my exhaust mods, around 11.4. Once the 3.7 was on and air flow was increased, it leaned out to more expected levels of 12.3 or so. Pretty good for stock ECU.
Without a port and polish, just the 3.7 IM/TB, I saw about 7 whp / 5 wtq gain, and I was already fully bolted on with exhaust, HFPC's, jpipe, and aem v2 intake. This is also without a tune. Here is my dyno chart of before/after:
It is assumed that a 3.2 TL would gain more from this mod as the 3.5 Type-S intake manifold flows more already, so the jump to the 3.7 isn't as big as it would be from the 3.2 platform.
With port and polish expect minimal gains over what I got - the 3.7 flows very well already. There are gains to be had with ported runners, though. to the tune of 5-10 whp. Also if you already have a PnP'ed intake manifold on your current 3.2 or 3.5 manifold, this swap to the 3.7 won't gain you much if anything.
Conclusion
This is a very important mod if you are planning to do an NA build on your car, or a supercharged application. If you are turbocharged, well....GTFO libert69 you already have 500 whp
It's an important mod to actually take advantage of any aftermarket CAI that you buy, and again is very important if you plan to have any work done on the heads, cams, etc.
Will benefit from a tune greatly but still offers good mid-range and top-end gains.
The following users liked this post:
hondazex (07-14-2013)
07-10-2013, 07:44 PM
#7
OP since you have a 08; you don't need the intake manifold cover. Just reuse yours.
For those thinking of doing the 3.7 IM/TB swap, I have compiled the relevant information from this thread to update this first post with.
This mod is recommended for people who are already bolted on with exhaust mods and want to take their car further, potentially with the tuning given in the new Flashpro solution for 07-08 TL's.
Estimated costs
1) ~ $500 for the 3.7 IM, TB, and hardware
2) ~ $150 for the IM cover plate if you have 04-06 TL
3) $100-150 for boring the Throttle body (optional)
4) $350 for porting and polishing lower intake runners and port-matching to the intake manifolds outlets, and gasket matching them.
Required Parts for swapping a 3.7 IM and Throttle body onto all 04-08 TL (base and Type-S)
94050-08080 NUT, FLANGE (8MM) 4 $0.19 $0.76
95701-08060-08 BOLT, FLANGE (8X60) 4 $0.88 $3.52
17105-RCJ-A01 GASKET, IN. MANIFOLD 1 $36.75 $36.75
92900-08050-3B BOLT, STUD (8X50) 4 $0.81 $3.24
17160-RK2-A00 MANIFOLD, IN. 1 $224.75 $224.75
16176-RYE-A10 GASKET, THROTTLE BODY 3 $0.47 $1.41
16400-RYE-A11 THROTTLE BODY, ELECTRONIC CONTROL (GMD8B) 1 $192.54 $192.54
90104-RCJ-A00 BOLT, SPECIAL FLANGE (6X18) -> get a few of these - you'll need 2 of them when you swap your IM cover plate to the new manifold because the 04-08 mani uses a couple of studs with nuts that are not present in the 3.7 manifold. On the 3.7 these are just bolt holes that you will want to fill with these bolts.
For those thinking of doing the 3.7 IM/TB swap, I have compiled the relevant information from this thread to update this first post with.
This mod is recommended for people who are already bolted on with exhaust mods and want to take their car further, potentially with the tuning given in the new Flashpro solution for 07-08 TL's.
Estimated costs
1) ~ $500 for the 3.7 IM, TB, and hardware
2) ~ $150 for the IM cover plate if you have 04-06 TL
3) $100-150 for boring the Throttle body (optional)
4) $350 for porting and polishing lower intake runners and port-matching to the intake manifolds outlets, and gasket matching them.
Required Parts for swapping a 3.7 IM and Throttle body onto all 04-08 TL (base and Type-S)
94050-08080 NUT, FLANGE (8MM) 4 $0.19 $0.76
95701-08060-08 BOLT, FLANGE (8X60) 4 $0.88 $3.52
17105-RCJ-A01 GASKET, IN. MANIFOLD 1 $36.75 $36.75
92900-08050-3B BOLT, STUD (8X50) 4 $0.81 $3.24
17160-RK2-A00 MANIFOLD, IN. 1 $224.75 $224.75
16176-RYE-A10 GASKET, THROTTLE BODY 3 $0.47 $1.41
16400-RYE-A11 THROTTLE BODY, ELECTRONIC CONTROL (GMD8B) 1 $192.54 $192.54
90104-RCJ-A00 BOLT, SPECIAL FLANGE (6X18) -> get a few of these - you'll need 2 of them when you swap your IM cover plate to the new manifold because the 04-08 mani uses a couple of studs with nuts that are not present in the 3.7 manifold. On the 3.7 these are just bolt holes that you will want to fill with these bolts.
The following 5 users liked this post by EvilVirus:
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hondazex (07-14-2013)
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07-11-2013, 08:16 AM
#8
Three Wheelin'
^Wow I just learned even more just from EvilVirus.. Kudos and thank you!^
This should answer everything you need to know about the intake swap. Now all you need to do is pick you cat back, pre cat delete or high flow, and J-Pipe. Easy stuff! Check out the black market for deals on used stuff.
This should answer everything you need to know about the intake swap. Now all you need to do is pick you cat back, pre cat delete or high flow, and J-Pipe. Easy stuff! Check out the black market for deals on used stuff.
07-11-2013, 08:51 AM
#9
07-11-2013, 09:42 AM
#10
^Wow I just learned even more just from EvilVirus.. Kudos and thank you!^
This should answer everything you need to know about the intake swap. Now all you need to do is pick you cat back, pre cat delete or high flow, and J-Pipe. Easy stuff! Check out the black market for deals on used stuff.
This should answer everything you need to know about the intake swap. Now all you need to do is pick you cat back, pre cat delete or high flow, and J-Pipe. Easy stuff! Check out the black market for deals on used stuff.
Last edited by EvilVirus; 07-11-2013 at 09:46 AM.
07-11-2013, 10:07 AM
#11
Three Wheelin'
07-11-2013, 11:23 AM
#12
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I have the ZDX TB and have not had a single problem with my fully bolted Type-S. Before or after the FlashPro tune no problems. For those experiencing problems, I believe it is caused by the sensor. If you buy the ZDX sensor and swap it out for your TL it will cure your idle problem
07-11-2013, 11:56 AM
#13
takin care of Business in
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yeah right and forget to give the credit to guy who made that list 
OP, if you are going with this intake setup, you need a 3.5" or a 4" intake, else its a waste trying to do this....
OP, if you are going with this intake setup, you need a 3.5" or a 4" intake, else its a waste trying to do this....
07-11-2013, 04:05 PM
#14
I have the ZDX TB and have not had a single problem with my fully bolted Type-S. Before or after the FlashPro tune no problems. For those experiencing problems, I believe it is caused by the sensor. If you buy the ZDX sensor and swap it out for your TL it will cure your idle problem
From what I read, if you use your stock MAP sensor; you will have idle issues. In order to solve this issue, members use the 3.7 MAP sensor, but you have to dremel the guide lines (swoosh did it and its on the post justnspace posted here) and if you can use Flashpro that will help out your problem too.
Credit goes to ILC for acquiring the parts and swoosh for listing them on the thread and me just because
I agree, if you take this route, then yes a 3.5 or 4 inch intake will benefit your setup better.
07-12-2013, 01:10 PM
#15
takin care of Business in
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I was the first who did this mod
I send the list to sonnick and he send it to ILC and there on out LOL
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EvilVirus (07-13-2013)
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EvilVirus (07-13-2013)
07-13-2013, 12:45 PM
#17
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I didnt use the 3.7L map sensor because I got lucky and never had an issue with my idle. But some experiencing idle issues have used this solution to remedy the problem. Guess I just got lucky.
07-14-2013, 02:17 PM
#18
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Thanks guys....
and yes, I am running the 3.7 MAF sensor as well....I have switched back and forth but havent seen any difference
08-05-2024, 07:13 AM
#19
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3.5 LIM to 3.7L IM
I have a 2006 Acura MDX 3.5L.
I'd like to swap out the 3.5L IM for a 3.7L , but not sure from what vehicles or years, can anyone make a suggestion?
Hopefully I won't need a bigger TB, or do I get the J37 with a larger TB? Will it consume more gas for the extra power?
Please help a backyard diyfer.
I'd like to swap out the 3.5L IM for a 3.7L , but not sure from what vehicles or years, can anyone make a suggestion?
Hopefully I won't need a bigger TB, or do I get the J37 with a larger TB? Will it consume more gas for the extra power?
Please help a backyard diyfer.
08-05-2024, 07:31 AM
#20
I have a 2006 Acura MDX 3.5L.
I'd like to swap out the 3.5L IM for a 3.7L , but not sure from what vehicles or years, can anyone make a suggestion?
Hopefully I won't need a bigger TB, or do I get the J37 with a larger TB? Will it consume more gas for the extra power?
Please help a backyard diyfer.
I'd like to swap out the 3.5L IM for a 3.7L , but not sure from what vehicles or years, can anyone make a suggestion?
Hopefully I won't need a bigger TB, or do I get the J37 with a larger TB? Will it consume more gas for the extra power?
Please help a backyard diyfer.
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