My engine is stock on my 5AT and I am thinking about just the reflash (not interested in other mods so please don't include anything else in the equation). I can obviously see the power increase based on the dyno but what would that translate to in terms of 0-60 improvement?

Results for auto transmission TSX w/ reflash (no other mods)

 

You may be out of luck:

Hondata does not show the 05 5AT as one of the ECUs it can reflash.

http://www.hondata.com/reflash_tsx.html


***********From the Hondata website************
Any K24A2 TSX Manual transmission owner with the ECU part numbers :

RBB-A02 - 04 TSX
RBB-A03 - 05 TSX

Any K24A2 TSX Auto transmission owner with the ECU part numbers :

RBB-A54 - 04 TSX
RBB-A55 - 04 TSX
*******************************************

 

Umm, yea it's in the list.

RSX

• 2002-2004 RSX- Type S K20A2 RSX
• 2002-2004 Base RSX K20A3 RSX manual
• 2002-2004 Base RSX K20A3 RSX auto
• 2005-2006 RSX Type S K20Z1 RSX Type S

Civic Si

• 2002-2004 Civic Si K20A3 Civic Si
• 2006-2008 Civic Si K20Z3 Civic Si

TSX

• 2004 TSX (manual & auto) K24A2 TSX
• 2005 TSX (manual & auto) K24A2 TSX 2005
• 2006 TSX (manual & auto) K24A2 TSX 2006

RDX

• 2007-2008 RDX K23A1 RDX

S2000

• 2006-2008 S2000 F22C stock
• 2006-2008 S2000 F22C with Toda Header

 

Sorry to disappoint you, but I think you get zero improvement in the 0-60 after hondata. At least that's what I notice and what others w/hondata have confirmed. Correct me if I'm wrong. Probably imperceptible improvement if at all.

 

05 5at is reflashable. If not, then I pulled a fast one on them.

Don't know the answer in terms of 0-60 stock. I don't know anyone who would know the answer to that specific a question to be honest.

For 295$, that dyno graph is enough evidence.

 

How is it possible to have zero improvement in 0-60 and the dyno show a noticeable increase in power? That just does not make any sense. Power and speed are usually synonymous, am I wrong?

 

That's flat out wrong according to physics.

And according to me. I got Hondata last week and DEFINITELY notice an improvement in 0-60 times. More power at all levels of the rpm range, not to mention nearly 25+ HP extra at 6000rpm. There has to be a 0-60 difference, or, your car has some serious problems, probably error between seat and pedal.

 

yeah, seriously basic physics guys, more power = more speed, assuming all other conditions are the same

 

You will definantly see a huge improvement on your 0-60 time. Its really impossible to tell you how much of an improvement but it would be worth it!

 

Technically yes. You can have tons of power (Torque) and no speed. Think of a Semi, 600HP in first gear. TONS of power, no accelerration. Power to weight ratio is what gives you your speed. A TSX with a heavy bodykit, subs, extra battery etc, will have the same HP on a dyno as a stock TSX, but can be slower.

Also 600HP in a TSX will be slow, because you will not have any traction, slippage all across the powerband.

Also depending on the gear ratio, you may see the power difference up top in higher RPMs, than low. So 0-60 would be faster with manual where you can keep the revs up.


Hope that helps.

 

Do you really believe this?? 600hp TSX would be SLOW??? No, it would be fast.

If a semi has 600hp in 1st gear, it still has 600hp in all the other gears, it is just taller gearing.

I agree with the fact that power to weight ratio makes most of the difference.

 

I hear what you're saying, but you're wrong in this example, as Hondata does NOT change gearing. A change in power (torque, and HP which is a function of torque and RPM), without a change in gear ratios, is an improvement in 0-60 times. Period.

 

Hi, I'm new here, and I have 2006 TSX 6sp in Alabaster Silver. It's stock completely except for a cheap K & N airfilter. I was wondering if anyone here could lead me to where Hondata might be located. Or... is it where you send them the ECM...? Thanks.

 

Hondata, Inc.
2840 Columbia St
Torrance, CA 90503

www.hondata.com

 

I am wondering the same thing, my car is 5AT as well and I am about to do Hondata. I agree that for $295 (half the regular price) the dyno will be enough for me to justify the reflash. But I am surprised there are no documented 1/4 slips or 0-60 times for our cars.

 

reflash ftw!!

 

My example was for where he said this :"That just does not make any sense. Power and speed are usually synonymous, am I wrong?"

You can have tons of power, but not speed was my point.

 

More power = more speed, if everything else remains constant. Since Hondata does keep everything else constant, and ups the power, you get more speed.

 

Off topic, but hardly any semi's out there are running 600HP. Its economically unrealistic for the everyday 80,000 GVWR semi truck to need that much power. They exist, but its not needed.

Either way, comparing "600hp"(~2200lb-ft) moving 80,000lb to ~230hp(~180lb-ft) moving ~3200lbs isn't a very good comparison

 

i'm still debating if it's worth the money for Hondata, is the power really noticible?

 

When I got mine done, I immediately noticed the difference off the line and just around town cruising. I mainly got it because as stock it seemed as if it was missing just a little pep I thought it should have had. I don't drive all that aggressively most of the time but when I need the extra "kick" it is now there.

I got mine done when it was $595. If I had to do it over again, I definitely would. The fact that it is now $295 is even more reason to do it. It is without question the best bang for you buck.

I'm going to get my RDX reflashed soon just because of the experience I've had with the reflashed TSX.

 

I got mine done two weeks ago, and believe me, it's worth it. The car is smoother and accelerates better across the entire rpm range. And when the VTEC kicks in at ~5k, you can really feel (and hear) it.

Qualifier: I have a 2005 6MT with a Comptech exhaust header, throttle body spacer, and no resonator, so (as the saying goes) your results may vary.

As many have said before, this is the way the car should have come from the factory.

 

Quick reflash question, for those who got it. Is that 1-2 shift a little smoother? I hate that shift. I tend to miss the timing just a little more often than I'd like to admit for having the car as long as I have.

 

Itchy -- I didn't notice a difference, as the 1-2 shift being a bit notchy/rough is due to the vast difference between the 1st gear and 2nd gear ratios.

That being said, the reflash is worth every penny even if it didn't fix the 1-2 shift.

 

Worth the money? Just guessing but I don't think there is one person on here that wouldn't consider Hondata the official best bang for your buck on our cars.

 

The Hondata website mentions a specific ECU part number for compatible 05 AT reflashes. Do all 05 AT ECUs have the same part number or will I need to extract my ecu and make sure before placing my order?

 

the more reason to do it, I didn't know it had dropped down in price. 295 is a lot more reasonable than $600.....HONDATA

 

1st gear tops out at about 40-42 MPH, so Hondata has to make a difference in both first and second gears. Lowering 0-60 time on a FWD car is never easy tho.

 

Well this made me laugh... It could have been me saying this - all of it! It's a good question, and the answer might help some people decied about Hondata.

Since we're here, does Hondata also stop (or reduce) the annoying just-off-idle-1st-gear-lurching that you get in stop-and-go traffic? My '91 Civic didn't do this: this isn't progress!

The 05 TSX I tested didn't have either of these traits, but the two 06's I tested/own do. [I sat in the passenger seat, today, in a Lexus IS250 and a BMW 328i - both with 3 people in the car; it was obvious that both these 6MT cars launch more easily than the [stock] TSX, and accelerate quicker].

 

is this a good investment or no? Thinking about it on my 06...

 

I'm getting mine reflashed on Monday. I'll post my impressions.

 

Have had my reflash for a week now so just wanted to post my impressions. Let me first say, I am a skeptic and critic. Having said that the reflash is an absolute must and a good bang for your buck (only $295 now!). Throttle response has been improved and there is definitely an increase in power. Nothing earth shattering but definitely a nice kick that is noticeable. Strange thing too, I've been driving rather aggressive the last few days and noticed my mpg has improved after the reflash. Didn't expect that but I'll take it!

 

Hey, I have a question regarding the Hondata reflash for those who have it: is the power only noticeable when using the sportshift, or is it noticeable even when not using the sportshift option on the automatic? Thanks!

 

The additional power is noticeable in both modes. Of course, with the sportshift mode you can crank it to 7600 rpm for the extra juice.

 

i've notice to be a bit more smoother