ACC-HE

thx prelude318is.

Budget: $2000-$3000?  not sure.. depends, but somehow I really like Hondata flash and the pulley set mod.

I don't quite care about the look.  I'm looking for slightly better straight line acceleration.  Suspension and brake is not as important for now, since I don't like extra rough ride.

prelude318is

forget about the crank pulley,  it is not good for the car.   stock crank pulley is a harmonic damper.  you will shorten the motor life by a lot if you run them.

ACC-HE

forget about the crank pulley,  it is not good for the car.   stock crank pulley is a harmonic damper.  you will shorten the motor life by a lot if you run them.
prelude318is 發表於 2009-4-27 00:19

you and 字典仔 are the experts... if both of u think that's a bad idea, then I should forget about it. Thanks.

ACC-HE

you and 字典仔 are the experts... if both of u think that's a bad idea, then I should forget about it. Thanks.
ACC-HE 發表於 2009-4-27 00:26

but...
quoted from: http://tsx.acurazine.com/forums/ ... 39&postcount=20

The stock crank pulley/damper is what is called an audible harmonic damper, in laymen’s terms that means control of harmonics you would hear in the occupant compartment. Similar example is the factory use of baffles and resonators in the intake manifold. These methods are used because of the factories fanaticism about quiet in the occupant compartment. They have nothing to do with engine longevity... association of the stock crank pulley being the primary damper is incorrect, it is the dual mass flywheel that accomplishes this task. But even replacing this dual mass damper with an aluminum flywheel would not cause long-term damage as long as the flywheel were properly balanced.

now I'm having 2nd thought...

shutterbug

but...
quoted from: http://tsx.acurazine.com/forums/ ... 39&postcount=20

now I'm having 2nd thought...
ACC-HE 發表於 2009-4-27 11:05

Just to be fair...字典仔 didn't say this...it was prelude318is

字典仔 knows what he's talking about ga

ACC-HE

oh I know, shutterbug....

I'm not questioning 字典仔 or prelude318is's knowledge and expertise at all, I'm just having conflicting comments/suggestions on such mod...

rainbow-davie

Best thing to do is to go sign up at a good North America-based 1st gen TSX forum, and see what other people are doing. Read a lot of old posts, find out what works, what doesn't, what is popular, etc ...
Lik 發表於 2009-4-25 00:10

agree..
but. you have to watch your budget.

ACC-HE

agree..
but. you have to watch your budget.
rainbow-davie 發表於 2009-4-27 15:38

What's exactly what I did, and turned out the pulley set and hondata flash are the two most useful and popular mods.

prelude318is

but...
quoted from: http://tsx.acurazine.com/forums/ ... 39&postcount=20

now I'm having 2nd thought...
ACC-HE 發表於 2009-4-27 11:05

The link you post is the president of UR trying to argue some of the points that Steve Dinan made in his website.

Here is the link in case you have never read it before.
http://www.dinancars.com/bmw/technial-info/the-dangers-of-power-pulleys-and-understanding-the-harmonic-damper

The post of UR prez is long and it sounds like he is one of the young guy on RS.  I read half of it and I just couldn't read any longer because the points he made couldn't really convince me.

1. baffle plate and resonator is usually in the air intake but not intake manifold.
2. "we have over 250+ million owner driven miles out there with our product."  250+ million owner?   The number sounds a little too high to make me think he is making up the numbers.
3. I dont think it is crank pulley's job to reduce engine noise.

I just refuse to read any more after he said he got more than 250+ million owners.  I highly doubt the accuracy of this post.

Here is the reason why I dont' recommend crank pulley to you.

most of the engine mod is like risking your longevity of your motor for more power.   How I look at it is the risk and power gain ratio.

example: turbo the car will make 100hp gain which associate with higher chance of blown head gasket, broken con-rod, etc

but replacing crank pulley will make you 5hp gain in typical, now you are risking your crankshaft and main bearing for such a minimal gain.  It is up to you to think if the gain is worth the risk you are taking.

I put on UR lighten crank pulley on my EF race civic because I need the last drop of performance that the rulebook allowed me to do and i dont drive the car much on the street.  However, I will never put it on my daily driver cos i want my car to last a long time.

hope this help

ACC-HE

thx prelude318is.

then.. what's your take on Hondata flash?  how is its risk-to-performance ratio?