[Pson]

My comment wasn't about porting the RBB, but porting the RBC? ISn't that what the RRC is a nicely ported RBC?

 

[CalgaryTSX]

Installing a short runner intake manifold designed for high rpm gains on a mild 2004 TSX with an auto transmission would be a mistake.
It will likely make the car a complete dog under 5000 rpm, slower than stock, only showing gains over 5000 rpm which is hard to maintain with a 5 speed auto trans versus a 6 speed manual trans.

Awoc cut apart and manually ported a 2006-08 TSX RBB intake manifold which showed minimal gains.


I have a spare upper and lower 2006-08 RBB intake manifold that I always thought would be a good candidate for Extrude Honing but the shipping is back and forth from Canada is expensive.
I am very familiar with extrude honing with my older 5.0L Mustang which also has a cast aluminum long runner intake manifold.
No loss in low end torque and excellent gains in higher RPM.

Although I'm sure no else has done it before, I feel that extrude honing the upper and lower TSX intake manifold would make for a good mild street combination.
No loss in low end torque but greater airflow and power mid and higher range.


If you are located in the U.S. perhaps you should look into extrude honing a 2006-08 intake manifold?


As several have mentioned, your automatic trans is a huge factor when modding your engine.

Very good discussion and thread :cheers:

 

[Vaikis_]

Installing a short runner intake manifold designed for high rpm gains on a mild 2004 TSX with an auto transmission would be a mistake.
It will likely make the car a complete dog under 5000 rpm, slower than stock, only showing gains over 5000 rpm which is hard to maintain with a 5 speed auto trans versus a 6 speed manual trans.

Awoc cut apart and manually ported a 2006-08 TSX RBB intake manifold which showed minimal gains.


I have a spare upper and lower 2006-08 RBB intake manifold that I always thought would be a good candidate for Extrude Honing but the shipping is back and forth from Canada is expensive.
I am very familiar with extrude honing with my older 5.0L Mustang which also has a cast aluminum long runner intake manifold.
No loss in low end torque and excellent gains in higher RPM.

Although I'm sure no else has done it before, I feel that extrude honing the upper and lower TSX intake manifold would make for a good mild street combination.
No loss in low end torque but greater airflow and power mid and higher range.


If you are located in the U.S. perhaps you should look into extrude honing a 2006-08 intake manifold?


As several have mentioned, your automatic trans is a huge factor when modding your engine.

Very good discussion and thread :cheers:

RBB is good for stock Acura TSX if you plan to install FlashPro, exhaust header, VTC 50, TSX 06-08 intake camshaft (if your car older) then RBB doesn't shine. RRC, RBC or even RSP is better options.
Accord CL9 5AT Weapon-R header, TSX 06-08 intake cam, VTC50, RSP intake manifold, Flashpro with proper tune.
vs Ford Focus STI + chip
https://www.youtube.com/watch?feature=player_embedded&v=Q3klXGe9VtQ

 

[tottenham12712]

Installing a short runner intake manifold designed for high rpm gains on a mild 2004 TSX with an auto transmission would be a mistake.
It will likely make the car a complete dog under 5000 rpm, slower than stock, only showing gains over 5000 rpm which is hard to maintain with a 5 speed auto trans versus a 6 speed manual trans.

Thats not true, if you have a crappy tune than yeah. The only place I feel a small loss in torque is from 1500 to 2500~. Everywhere above 3500 I have gains.

My comment wasn't about porting the RBB, but porting the RBC? ISn't that what the RRC is a nicely ported RBC?

You could but by the time you ship the thing around and pay for the port you most likely could buy something better.

 

[CalgaryTSX]

Thats not true, if you have a crappy tune than yeah. The only place I feel a small loss in torque is from 1500 to 2500~. Everywhere above 3500 I have gains.

The original poster has a mild 2004 TSX with an auto trans. Your car is anything but mild and has a 6speed manual!!

Not really a accurate comparison IMO.

 

[tottenham12712]

The original poster has a mild 2004 TSX with an auto trans. Your car is anything but mild and has a 6speed manual!!

Not really a accurate comparison IMO.

What he is planning to add doesnt put him far off from what I have. Yeah the auto trans will come into affect but with a proper tune it really wont be all that noticeable unless there are 5 full sized adults in the car.

Will he lose torque under 3-4k, yes. Will the car be a dog? No, unless it has a full tank and 5 people in it than maybe a bit. Will it be slower than stock? Heck no.

 

[Pson]

After my tune, I gained HP and TQ....the car is faster then before. Nothing like a 6 speed, but still better then OEM.

 

[tottenham12712]

After my tune, I gained HP and TQ....the car is faster then before. Nothing like a 6 speed, but still better then OEM.

:tu2:

When you have a full tank and a full car do you notice it being a little down on power below 3k? Thats the only time I ever really feel it.

 

[RonBurgundy]

RBB is good for stock Acura TSX if you plan to install FlashPro, exhaust header, VTC 50, TSX 06-08 intake camshaft (if your car older) then RBB doesn't shine. RRC, RBC or even RSP is better options.
Accord CL9 5AT Weapon-R header, TSX 06-08 intake cam, VTC50, RSP intake manifold, Flashpro with proper tune.
vs Ford Focus STI + chip
https://www.youtube.com/watch?feature=player_embedded&v=Q3klXGe9VtQ

sounds interesting...
RSP direct fit for our k24a3? which TB?

 

[Pson]

:tu2:

When you have a full tank and a full car do you notice it being a little down on power below 3k? Thats the only time I ever really feel it.

I felt the TQ loss, but it helps with the tires spinning actually and I had more Tq then stock after my first mod list. I would same compared to stock the RRC with VTC and header tuned jumped up at least 20 HP and opened the car up after 3K.

 

[Bryle James]

Dang, looks like I'm not the only one that wants an RSP intake manifold now.

 

[Vaikis_]

sounds interesting...
RSP direct fit for our k24a3? which TB?

yes, direct. TB can be stock or you can go for bigger from TL.

 

[GrayTsx1210]

Don't know if OP is still looking for the RRC or not, but Hmo has it for $449 brand new.

Whats New At hmotorsonline.com® 2007+ Civic Sedans

 

[CalgaryTSX]

RSP manifold from civci FN2 (Euro) for the win

RRC manifold is not sold in US anymore.

Sorry if I missed it but does anyone have any info or a link to the RSP intake manifold?



edit: Google only works if you spell correctly!

 

[Vaikis_]

Sorry if I missed it but does anyone have any info or a link to the RSP intake manifold?



edit: Google only works if you spell correctly!

here is a lot of info:
RBC vs RSP(euro type R) intake manifold - K20A.org .:. The K Series Source . Honda / Acura K20a k24a Engine Forum

 

[Bryle James]

I've been following that thread Vaikis. Lots of good info and really insightful. The recent developments really make you think about how complex something like this can be.

 

[RonBurgundy]

yes, direct. TB can be stock or you can go for bigger from TL.

OK cool, thanks.
and the diameter of the RSP is 60 or 64mm?

 

[sonyfever]

OK cool, thanks.
and the diameter of the RSP is 60 or 64mm?

64mm

 

[A-1]

64mm

62mm

 

[sonyfever]

62mm

Oops, I thought RSP has same diameter as RRC. Thanks to A-1 for pointing that out!