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long-term build
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Discussion Starter #1 (Edited by Moderator)
Powertrain

• Horsepower increased to 205 SAE net (Rev 8/04) @ 7000 rpm
• Torque increased to 164 lbs-ft. SAE net (Rev 8/04) @ 4500 rpm
• Reinforced engine block
• Stronger connecting rods
• New crankshaft with more counterbalance weight
• Revised pistons with more valve-piston clearance
• Larger intake valves
----- approx. 1mm oversized
• Increased valve timing and lift
----- Intake cam High lift lobe with 0.9 mm more lift and 12 degrees more duration
• Increased intake flow
----- Throttle body increased from 60 to 64mm
----- Radius on some intake pipes increased from 70-80mm
----- isn't there a difference in the injector base as well?
• Increased exhaust flow
----- Catalytic Converter cell count dropped from xxx to xxx (need these numbers)
----- Exhaust Head pipe increased from 60 to 65mm
----- Main (single) exhaust pipe increased from 54 to 57mm
----- Rear (twin) pipes increased in diameter from 42.5 to 45mm
• Reduced engine pumping losses
----- Additional air passages in crankcase
• Stronger automatic transmission to complement increased horsepower
-----• Higher capacity clutch
-----• Higher capacity torque converter


Chassis

• Electronic Brake Assist
• Increased rigidity of upper A-arm reduces NVH


Exterior Styling

• Restyled hood and grille
----- chrome trim removed from hood, grille redesigned
• Redesigned headlights and taillights
----- reflector design removed in front amber pieces, replaced with cleaner look
----- design change in the ballasts for the front HIDS
----- design change in headlight construction to eliminate condensation problems
----- backup light circles in inner taillights darkened, or smoked
• Redesigned front and rear bumpers
• Fog lamps are integrated into the lower bumper
• More pronounced side sills
• New nine-spoke alloy wheels
----- Made by Enkei of Japan. 17 x 7.5 +55
• Flat wiper blades increase visibility and reduce wind noise
• Four new exterior colors:
----- Alabaster Silver Metallic replaces Satin Silver,
----- Glacier Blue Metallic replaces Meteor Silver Metallic,
----- and Deep Green Pearl, and Royal Blue Pearl are added


Interior

• 2-position memory for driver's seat
• Auxiliary audio jack in center console for digital music players
• Hands Free Link wireless telephone interface
• Sports steering wheel
----- thicker grip area
----- knuckles added at the 10 and 2 o'clock positions
----- redesigned airbag cover and lower grip portion
----- added buttons for the HFL, Bluetooth and MID
• Multi-info display
----- located between the tachometer and the speedometer
• New meter face
• New wood-patterned trim for models with Parchment interior
• Metallic garnish added to shift knob
• Redesign of center console trim
----- faux carbon fiber look replaces flat black finish
----- trim piece around shifter redesigned to be one piece
• Smart Maintenance system
• Enhanced Acura Navigation System (optional)
-----• Larger buttons and fonts
-----• Faster processing speed
-----• Points of Interest (POI) database increased to 7 million
-----• HandsFreeLink calling to POI
-----• More voice recognition commands (653)
-----• Zagat Survey™ restaurant guide
-----• Exit ramp services feature
• Enhanced in-glass antennae for improved radio reception
 

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long-term build
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2,761 Posts
Discussion Starter #2
this post is going to be the picture post.
this post is reserved.




in this post, I will collect all the pictures we find that visually
show these differences listed above.

most will be interior/exterior shots, but any shots of parts are
welcome too. NOT aftermarket, just oem parts, thanks.


2005 Interior:


auto, non navi

manual navi


2006 Interior:


noted changes:
shift knob
buttons on navi screen
design on black plastic in center console
hazard button

2005 Steering Wheel:

2006 Steering Wheel:

2005 Front:



2006 Front:

2005 Grille/Hood:


2006 Grille/Hood:

2006 Foglight Area:

2005 Headlights:

2006 Headlights:

2005 Side Shot:

2006 Side Shot:

2006 Rims:

2005 Back:


2006 Back 3/4 Profile:

2005 Taillights:

2006 Taillights:
 

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Slow but turns
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2,961 Posts
side skirt has been redesign to complement the front/rear bumper changes

06-08 is unofficially approx 100lbs heavier than 04-05 models

From Hondata...

Increased intake flow:

Intake valve + 1 mm oversize
Intake cam High lift lobe with 0.9 mm more lift and 12 degrees more duration
Throttle body increased from 60-64mm
Radius on some intake pipes increased from 70-80mm

Increased exhaust flow

Exhaust Head pipe increased from 60-65mm
Higher flow catalytic converter
Main (single) exhaust pipe increased from 54-57mm
Rear (twin) pipes increased in diameter from 42.5 to 45mm

Block improvements:

Additional air passages in crankcase for reduced pumping losses

Other

Stronger connecting rods
New crankshaft with more counterbalance weight
Revised pistons with more valve-piston clearance
 

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Let me...help you!
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1,335 Posts
Higher flowing catalytic converter, "Acura" stamped on windows instead of "Honda", and smoked reverse lights. Also, for the sports steering wheel, you might want to clarify that it's thicker and has those knobs at 10 and 2, and not the accessory steering wheel.

I'm not sure what the 05 had. Did they have the alarm beep and square hazard light button? (I'm on my cell and can't check.)
 

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long-term build
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2,761 Posts
Discussion Starter #9
thank you guys.

I need details!

and I mean every last little tiny detail you can think of.
this list, as you can see already, is going to be very thorough.
there's hundreds and hundreds of changes, lets find every single
one of them and write it down here once and for all!

then we can all copy and paste the list. maybe then we can just
make a pdf and make it widely available. this is a great service to
all those looking to buy TSX's. we have the info, let's hook it up.

I need all the help I can get. so everything you can think of.
every picture you can find.

thanks all.
 

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The 2012's 2.4 motor has 170 lb/feet, 201hp. I rather take that motor than any of the 2006-2008s.

Regarding SAE, 2005 & before had a different measuring standard. Also, JDM mazda was one time measuring the flywheel instead and gave the rx-8 some unreal advertising ps numbers while most EDM manufacturers were measuring bhp. Therefore, different measuring methods give different numbers.

Well, do you guys think 2006's measuring standard of 205hp SAE > 2012's measuring standard of 201? I doubt it.
 

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long-term build
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Discussion Starter #11
I don't think this is a pissing contest, and this thread isn't the place
really to try to start one between two very similar motors.

this thread is only to show the differences between the 2005 and 2006 TSX.
 

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I would say the difference between the DBW 200hp and 205hp motor is minimal due to different SAE measuring standards. JDM manufacturers like mazda, honda/acura wanted to boost the sales by advertising some unreal flywheel power numbers. Later on, they realized it's not right & down scale all the numbers back to realistic side
 

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long-term build
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Discussion Starter #16
that's fantastic.

lemme guess: you're a genius. I knew it!
 

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In automotive industries, every time when they do face lift, a ton of parts are going to be revised. Performance-wise, the difference is minimal unless increase the engine displacement(bore&stroke).
 

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, Chief SuperModerator, Marketplace
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In automotive industries, every time when they do face lift, a ton of parts are going to be revised. Performance-wise, the difference is minimal unless increase the engine displacement(bore&stroke).
I think you made your point. Lets keep this thread on topic.
 

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np at all. I like it when mature people talk nice with respect.

I think the 2006 (or the not too sure 2007)TSX has revised endlinks because the former ones are easier to break likely.
 

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Let me...help you!
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Regarding SAE, 2005 & before had a different measuring standard. Also, JDM mazda was one time measuring the flywheel instead and gave the rx-8 some unreal advertising ps numbers while most EDM manufacturers were measuring bhp. Therefore, different measuring methods give different numbers.

Well, do you guys think 2006's measuring standard of 205hp SAE > 2012's measuring standard of 201? I doubt it.
Like you said, the scale was changed in 2006. There were talks back then that if the scale had not been changed, we would have +10 hp (215 hp). I don't think the scale has been changed since then, so comparing 2006 and 2011 should be okay (same scale, same manufacturer). Although the 2G has less hp, I think it has more torque. Some people preach that torque is better than hp (torque gets you going, and hp keeps you moving).

As for the cell count of the catalytic converters, hopefully someone can chime in with facts. I remember someone saying that 04/05 had 900 cells while 06+ only has 400, but I haven't seen any proof on that. (This was from talks about highflow cats only having 200 cells.)
 
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