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Old April 9th, 2012, 11:22 PM   #1
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Intake Manifolds and Throttle Bodies

So ive been debating whether or not to install the MDX spacer now, or sell it to upgrade to a newer manifold/bigger throttle body. Is there a difference between the automatic and manual Intake manifolds and throttle bodies. Well i just went through and pulled pictures and part numbers to compare the 09+ TL-SH AWD Manifold and TB to the newer Accords, RLs, and MDX... A beer or two later and here. Also according to Wikipedia all J37 manifolds are cast magnesium(Accord is a J35 ) Is this


Accord 08+ Manual



MDX 07+



09+ RL



11 TL SH-AWD



Now on to the part numbers.
Intake Manifold(RL had two)
Accord 17160-R72-A01
MDX 17160-RYE-A00
RL 17160-RKG-A00
17160-RKG-A01
TL 17160-RK2-A00


Intake Manifold Cover
Accord 17140-R72-A01
MDX 17140-RKB-013
RL 17140-RKB-013
TL 17140-RK1-A01

Throttle Body
Accord 16400-RYE-A01
MDX 16400-RYE-A01
RL 16400-RKG-A01
TL 16400-RKG-A01

Throttle Body Gasket
Accord 16176-RCA-A02
MDX 16176-RCA-A02
RL 16176-RKG-A01
TL 16176-RYE-A10
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Old April 9th, 2012, 11:23 PM   #2
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Now discuss. hahahaha
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Old April 9th, 2012, 11:51 PM   #3
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yup. I own one of the 09 RL IM and sold it cuz it didn't have the IAT sensor spot. I now own the 08 TL-S IM.
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Old April 10th, 2012, 12:02 AM   #4
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in the pic above the RL does have the IAT location. But for those using the AEM v2 or relocating the IAT it wont matter.
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Old April 10th, 2012, 12:04 AM   #5
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in the pic above the RL does have the IAT location
there is 2 version they differ by 1 number A00 and A01. i got pwned... lol
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Old April 10th, 2012, 01:42 AM   #6
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i was thinking the MDX manifold/tb would be a good choice. manifold looks like the TL manifold, TB doesnt though.
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Old April 10th, 2012, 12:17 PM   #7
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well anything is better than the 7th gen stock accord manifold...the 09 TL manifold from the 3.5 liter looks identical to the 09 TL SH- AWD 3.7 manifold EXCEPT the 3.5L manifold can use the 7th gen stock Accord Throttle body and the 3.7L manifold CANNOT. On another note P2R sells an adapter plate the allows a future upgrade to the 80mm 3.7L Throttle Body for use on the 7th gen intake manifold which would also be compatible for the 09 TL 3.5L manifold.

Here is a thread for the adapter.
http://www.v6performance.net/forums/...e-accords.html

Ignore the spike on this dyno. The line shows 254whp after the addition of the 80mm T/B. On stock throttle body its hard to see but the line shows 248whp. Not much of a difference but with some more mods you can see how this T/B starts to come in

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Old April 10th, 2012, 01:16 PM   #8
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So the 09 TL manifold works with the Accord Throttle body straight lines up with all holes and gasket?
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Old April 10th, 2012, 01:24 PM   #9
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Paul I'm confused. That dyno was done after the manifold install on the stock TB. Was there a 'before' dyno when you had the stock manifold? I can't see the dyno for whatever reason.

So you're saying the 3.5 Accord manifold looks identical except for the allowance of the 3.7L throttle body for future. I just can't stop thinking about the big bore TL throttle body and why it's only ~70mm at the outlet. If it were even 73 and could be bored to match at 75, it would be perfect! I've been looking around at other TB's that could potentially work on this setup and came across the 5.7L HEMI throttle body for the SRT8. I came across a link from a VW/Audi forum where they can use them with an adapter apparently. I believe they are 80mm as well as DBW. There are a couple part #s for it. One of them is PN 53032801ac.

80mm Throttle Body Upgrade - Problem?

There is the discussion about it on the Audi forum.
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Old April 10th, 2012, 03:03 PM   #10
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where is the best place to get a-hold of one of the magnesium manifolds? they are expensive from the factory!
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Old April 10th, 2012, 03:58 PM   #11
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Cubano how sure are you about the 3.5L 09 TL manifold bolting up with the stock 03-07 accord throttle body?
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Old April 10th, 2012, 05:46 PM   #12
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the 08 accord manifold isnt made of magnesium?
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Old April 10th, 2012, 05:59 PM   #13
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the 08 accord manifold isnt made of magnesium?
yes it is. My friend has one on his gen8 v6. I also played with him IM. Forged the same way as my TL-S IM
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Old April 10th, 2012, 06:17 PM   #14
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yes it is. My friend has one on his gen8 v6. I also played with him IM. Forged the same way as my TL-S IM
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Old April 10th, 2012, 06:38 PM   #15
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What's the difference between the 08+ Accord V6 and 07-08 TL-S manifolds? Is the internal volume different?

Why is the upper piece of the clamshell designed differently?

Are both pieces magnesium or just the upper piece?
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Old April 10th, 2012, 06:51 PM   #16
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What's the difference between the 08+ Accord V6 and 07-08 TL-S manifolds? Is the internal volume different?

Why is the upper piece of the clamshell designed differently?

Are both pieces magnesium or just the upper piece?
The upper piece has the electronics. I believe both are MAG. Not sure why the honda counter part cost more then the Acura. Maybe its just cuz of the A. lol
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Old April 10th, 2012, 08:00 PM   #17
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i found an 09 TL manifold... just need to confirm that it will work with the stock accord throttle body. Could also pick up the throttle body for the same manifold for $100 more :-/
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Old April 10th, 2012, 08:10 PM   #18
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Wow, that's a very good price if that's the same TB P2R makes an adapter for.
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Old April 10th, 2012, 08:17 PM   #19
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09 TL will not work with the stock TB. If you look at it the gasket is different. That means that the TB is also different.
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Old April 10th, 2012, 08:25 PM   #20
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You need the P2R adapter Atlas. Then it will work.
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Old April 10th, 2012, 08:28 PM   #21
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i found an 09 TL manifold... just need to confirm that it will work with the stock accord throttle body. Could also pick up the throttle body for the same manifold for $100 more :-/
where did you find the manifold? i cant seem to find them anywhere.
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Old April 10th, 2012, 08:29 PM   #22
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hmm.. p2r doesnt have a adapter/spacer listed for hour cars to a stock tb... or did i miss it??
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Old April 10th, 2012, 08:45 PM   #23
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^ Call P2R. They have it
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Old April 10th, 2012, 08:54 PM   #24
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I think I would just get the 3.7 tb and manifold and save the hassle of a spacer... It is plug and play, right?
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Old April 10th, 2012, 08:56 PM   #25
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Yes, but you have to find a spot for the IAT sensor. lol.
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Old April 10th, 2012, 09:01 PM   #26
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Yes, but you have to find a spot for the IAT sensor. lol.
Pfff relocate that beesh to the bumper like me!
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Old April 10th, 2012, 09:01 PM   #27
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Yes, but you have to find a spot for the IAT sensor. lol.
come on, thats not so hard is it? extend the wires some and you'd be fine. right?

Drill away and find a spot?

Last edited by DCdonDubby; April 10th, 2012 at 09:02 PM.. Reason: agree with cubanob247
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Old April 10th, 2012, 09:06 PM   #28
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Paul I'm confused. That dyno was done after the manifold install on the stock TB. Was there a 'before' dyno when you had the stock manifold? I can't see the dyno for whatever reason.

So you're saying the 3.5 Accord manifold looks identical except for the allowance of the 3.7L throttle body for future. I just can't stop thinking about the big bore TL throttle body and why it's only ~70mm at the outlet. If it were even 73 and could be bored to match at 75, it would be perfect! I've been looking around at other TB's that could potentially work on this setup and came across the 5.7L HEMI throttle body for the SRT8. I came across a link from a VW/Audi forum where they can use them with an adapter apparently. I believe they are 80mm as well as DBW. There are a couple part #s for it. One of them is PN 53032801ac.

80mm Throttle Body Upgrade - Problem?

There is the discussion about it on the Audi forum.
This dyno was done with the 3.5L 09 TL intake manifold and stock accord T/B, then i used the adapter to bolt-on the 80mm T/B from the 3.7L then dynoed again. Why did i have the 3.5L manifold in my possession? well basically im an idiot and i ordered the wrong one thinking it was the 3.7L manifold but it was not. So how sure am I that the 3.5L 09 TL manifold bolts right up and uses the 7th gen throttle body? 150% sure becuz i dynoed with it to do this comparison test. Not a real accurate test becuz it was NOT with the stock 7th gen aluminum manifold but you get the point.
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Old April 10th, 2012, 09:16 PM   #29
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Kool!! haha mystery solved.
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Old April 10th, 2012, 09:19 PM   #30
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I think I would just get the 3.7 tb and manifold and save the hassle of a spacer... It is plug and play, right?
well your talkin about spending double the amount becuz the 3.7L throttle body is required with its counterpart intake manifold...there is no mixing and matching, well unless you get an adapter but that defeats the purpose of the 3.7 combo...the 3.5L manifold and top plate is ~400 buks total...

You guys gotta understand that its about the overall combo and yes its expensive but there is no rush here so take your time and get the right parts the first time becuz otherwise you will be throwing money away. Even if you gotta wait 6 months in between upgrades..at least you know what you gotta do.

Bottom line for ~260whp w/ power steering:

09 3.7L TL-SH-AWD Intake manifold and matching 80mm T/B
RV6 Pre-cat delete's
Stock J-pipe
3" single exit mandrel bent exhaust from j-pipe out
4" intake with Velocity stack
Clutch delay valve deleted
IDK if i made any additional power off of it, but i bypassed A/C compressor
T/B coolant bypass
Relocate IAT sensor to front bumper foglight location

So i suggest to anyone/everyone until you have met or exceeded this setup on your J30a4 engine wtih 6-speed transmissions to please dont waste your time with mods that are any less than this or you will be sorely dissappointed and probably ask all sorts of unnecessary questions.
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