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RoLO "THE HULK" NY
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903 Posts
why do people install tsx parts on the accord engine?
arent they the same engine?
As for the TSX intake manifold is bigger and it allows more air to go thru and produces more power from what I have heard.. There was a thread on Gen7 w/ photos and you could see the diff between our OEM and the TSX IM (huge diff).. I can't find the pics and Skip explanation.
 

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Formerly EPS Sniper
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762 Posts
This was originally posted by Steven, aka Skippy. Credit goes to him on this write-up.

Everybody wants to squeeze just a little more power out of their 7th gen, and this is a cheap way to get some noticible response. This idea came from member OUTERSQUARE and he deserves part credit in giving me the idea to do this mod, and also in answering some of my introductory questions related to the install.

This guide will be in relative lay speak so that everybody will get the picture the first time reading. This guide is intended to be used by members who have the tools required. Let me tell you...I live 20mi from Acura where I work, and if you mess up, you won't be able to drive your car until you fix it. BEWARE AND BE AWARE. The only reason I say this is because I attempted to remove my throttle body gasket and did not have my gasket scraper on hand, and I couldn't drive my car until the next day...after I went to work and hand scraped the TB.

The benefits of using a TSX manifold are straightforward...



Accord manifold on the left, TSX on the right.

As you can see, the TSX manifold is noticibly bigger in key places in order to flow as much air as possible.



TSX manifold on the left, Accord on the right.

The runners on the TSX are slightly longer than on the accord in order to boost low end power. The plenum on the TSX manifold is also notably larger than the accord's.

After installing the manifold, I noticed an IMMEDIATE gain. I don't think in terms of horsepower, rather response time. This manifold really opens up your powerband, especially in manual equipped cars. You'll notice with a stock manifold that it will take a long time to pick up in a lower gear. This effect is minimized with the TSX manifold, and you can reach your effective powerband quicker.

Ok so on to the guide!!

What you will need:
TSX manifold *(I used an 04 manifold)
beer
music
3/8" drive ratchet (flex head recommended, and 12" long is perfect)
3" extension for said ratchet (just in case)
Phillips screwdriver
10mm deep socket
12mm deep socket
14mm deep socket (just in case)
10mm wrench (flex head gear wrench preferred)
12mm wrench (same as above)
Gasket scraper
small hammer
needle nose pliers (90 degree bent preferred)
magnetic or plastic tray to hold bolts / nuts

FINALLY THE GUIDE!!

Start by removing your intake. Disconnect the IAT sensor, which is located on the intake. Remove the breather hose from the intake plenum. Remove the MAP sensor located on the manifold. Set this on a clean area with its screw. While the primary manifold is still attached, use a 12mm deep socket to loosen the two throttle body nuts and 2 throttle body bolts.

Disconnect the Throttle position sensor on the TB.



Remove the two 10mm bolts holding the throttle cable bracket to the manifold.

If the throttle body is not loose to pull on, GENTLY tap on the area where it connects to the intake with your hammer. DO NOT HIT IT ANYWHERE ELSE.



After you remove the throttle body, you may elect to remove the gasket...only do so if you have a TSX or accord gasket available, and a gasket scraper. Also have throttle plate cleaner available to clean up.

Take the two nuts that were on the throttle body and use them to take out the studs on the manifold. Note their positions and remove the studs. Put one nut on inverted and the other nut on top of it so it looks like a bolt head. Tighten this down with a wrench and ratchet, then use the ratchet to remove the stud. Repeat for the other stud.

Now the big part:



Before loosening the bolts holding the primary manifold to the secondary manifold (where my ratchet is), feel under the manifold for a bracket and a nut. There should be a 10 or 12mm nut(I can't remember offhand) securing the bracket to the manifold. Use a wrench to remove this nut. Now use your 12mm ratchet to remove the bolt/ nuts holding the primary manifold to the secondary.

You don't have to replace the metal gasket, so don't worry about it. You can replace this gasket with the P2R insulating gasket if desired.



Look on the back of the accord manifold. There is a rubber nipple on a vacuum port that is actually used on the TSX. Remove this nipple and install it on the TSX manifold before installation. You should be able to use this port if you wanted to hook up a boost/vacuum gauge. How do you like that??

You can go ahead and repeat the process in reverse to reinstall your new manifold. With all bolts and nuts, only tighten them 3/4 turn past contact. Do not over tighten any bolts on the manifold....you don't want to strip anything.


Ok so thats it, please let me know if there's anything that I missed. Also feel free to leave comments, I will be doing more DIY's in the future, and I would like your comments in order to make my DIY's better. I will do a DIY for the Hondata intake manifold gasket at a later time...I just got too anxious to do the manifold that I couldn't wait to get the hondata gasket.

Part numbers (as per Azn_Rice_man)

TSX Intake Manifold - 17110-RBB-000
TSX Bracket - 17132-RAC-U00
TSX Intake Manifold Gasket - 17132-RAA-A01

Happy installation!!

~Skip

**Update 9/15/06
There is a bracket that secures the intake manifold to the lower assemblywork. It can be found by looking in the "look here" area of a photo. You will need to remove this bracket when installing the TSX manifold, as it is too long to accomodate the new manifold. The new manifold is very light, and I did not find it necessary to install the TSX counterpart in my install. I have had no adverse effects by doing this, and I am pretty sure nothing will be hurt by not installing a TSX manifold bracket. Thanks to Azn_rice_man for pointing this out.
Hope this helps,
Sammy
 

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Bobby Lane Racing
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5,679 Posts
It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
 

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Bobby Lane Racing
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I believe Adrian, ADI has an extra TSX intake manifold laying around. I gave it back to him when I did the engine swap.. Hit him up Tim.
 

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AdRiaN
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It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
3 Lobe cams as oppose to the 2 lobe cams on the accord ;)


I believe Adrian, ADI has an extra TSX intake manifold laying around. I gave it back to him when I did the engine swap.. Hit him up Tim.
thanks kiet, but yea had an extra one, sold it a long time ago along with all the extra parts i got back from u (thanks for that...lol)
 

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It's a waste of money to swap a TSX intake manifold onto an accord. You'll see why if you open up the valve cover of the accord, and the tsx to compare. All the gains you see with the TSX have to do with the entire head assembly, and not just hte manifold alone.
sorrry man, i think u r soo wrong, i installed the tsx im on my car and u can def feel a difference. if u had a four cylinder you could do it and see the difference. it has been dyno proven so sorrry that you think its a waste. for those four cyl guys do it, its worth it
 

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the main thing it improves on is throttle response throughout the entire RPM band, and yes it does increase power. but really the stock manifold is a bottle neck when paired up to a CAI or SRI. so yes there will be gains, but nothing outrageous. to get a big gain, do a head swap and k-pro it.
 

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Yeah I'll confirm it adds a lil somethin somethin. Like the aboves have mentioned it's not like 10-15 hp or anything but it's definitely a noticable difference. I've got a dyno sheet but unfortunately it's with all other bolt on's as well.
 

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Bobby Lane Racing
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sorrry man, i think u r soo wrong, i installed the tsx im on my car and u can def feel a difference. if u had a four cylinder you could do it and see the difference. it has been dyno proven so sorrry that you think its a waste. for those four cyl guys do it, its worth it
do the im man, car revs faster and breathes way easier. dont trust those v6 guys ahahahah
I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. ;) So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.


3 Lobe cams as oppose to the 2 lobe cams on the accord ;)




thanks kiet, but yea had an extra one, sold it a long time ago along with all the extra parts i got back from u (thanks for that...lol)
you're welcome bud. =)
 

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I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. ;) So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.




you're welcome bud. =)

It's not that expensive of a mod so I wouldn't say it's worthless but it's actually the least expensive bolt on for the K24.
 

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I'm not just the typical v6 guy, i've done complete overhauls on a variety of K-series engines and I'll tell you that the K24 in the accord isn't a vehicle to modify unless you do a complete overhaul of the engine. I'll be building a K24 complete long block outside of a car, and it's going to be displayed in our show room once I'm done.. Almost any vehicle will be beneficial with an increase sized intake manifold, however utilizing it to the fullest potential will only be possible of there isn't any other parts on the engine thats bottlenecking it. ;) So yes, I agree there will be some gains, but is it worth it? coming from me, i'd say no its not unless you're planning on bigger upgrades to pair up with it.

Oh and btw I have a few K-series that i'm working on right now...
K20z3.. it's going to make over 240whp N/A. and a K24 long block, that will be fully built once I'm done.
completely right, with a 3 lobe cam design we would see much more of a gain. but as abailey4 pointed out it is a cheap mod, so i think it's worth it as well.

how does the k20z3 head bolt up to the k24a4 block? don't you need to change internals?
 
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