i have a stock '00 B16A2 in my EK hatch. this guy is selling me a CTR N1 crank pulley for 60 bucks. what are the advantages and disadvantages? i know i can use a/c and power steering...but what about the crank? is it going to throw it off balance? is my motor going to lose reliability? any info would be great!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by emoney9 &raquo;</TD></TR><TR><TD CLASS="quote">i know i can use a/c and power steering...</TD></TR></TABLE>

Was that a typo? Because you can only run one belt for the alternator off of it.

Just like any other underdrive pulley it will make your car rev quicker and it will give you a small hp gains throughout the powerband.

Ive heard that because it weighs less that it dosent absorb engine harmonics as much as the stock pulley.


http://store.yahoo.com/yhst-14....html

 

another pic from the same page and its 69.00 new there

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by func-tion &raquo;</TD></TR><TR><TD CLASS="quote">

Was that a typo? Because you can only run one belt for the alternator off of it.

Just like any other underdrive pulley it will make your car rev quicker and it will give you a small hp gains throughout the powerband.

Ive heard that because it weighs less that it dosent absorb engine harmonics as much as the stock pulley.


http://store.yahoo.com/yhst-14....html


</TD></TR></TABLE>


yeah with the CTR pulley you can only run your alternator belt. Thats the whole purpose of that pulley, its now lighter since they deleted the spots for the a/c and power steering. With it being lighter it helps produce quicker revs, just like changing your flywheel to a lighter one.

 

yeah that was a type-o...so what are the disadvantages? is there any? do i need to change anything else. when you say it doesnt absorbe harmonics...you mean my engine will rattle? vibrate more? thanks again

 

one disadvantage is it has no harmonic balancer, but whether or not this will harm your engine is debatable

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Casey &raquo;</TD></TR><TR><TD CLASS="quote">but whether or not this will harm your engine is debatable</TD></TR></TABLE>

Is your car a high mileage daily driver? Then it may not be a good idea.

If its for drag, roadracing, weekend driving. Id do it.

there are other options out there too exospeed makes a pully and ati(wich includes a harmonic ballencer).
http://www.atlanticspeed.com/s...s.asp

 

i love mine... i noticed a pretty large seat of the pants gain... car revs alot quicker as well.

 

I dont get why this would be bad, they have it on the B16Bs stock. is it that other motors are balanced differently?

 

its not stock on a b16b motor. its an optional peice.

 

no, they don't have them on the b16b motors stock. it's a pulley that honda makes for the b16b race engines: motors that do not need to run everyday of the week, to last for 200k, and they have a slew of professionals right there who can rebuild it on their lunch break.

as mentioned above, it does not have the harmonic balancer. about this thing: it's just some rubber in there to absorb the shock from the spark pulses, so they are not propagated down through the crank. will this be bad for your motor? some say yes, some say who cares. in theory, yes it will kill your motor prematurely; however, there is little - if any by my account - emperical evidence of this actually happening.

does anybody know of, or have any real stories about running a crank pulley that lacks the harmonic balancer? please share.

this crank pulley debate is right up there with abortion and the death penalty. my take on the situation is the following: don't use it on a daily driven motor, but if it's a track *****, then go for it.

 

more good info. When i get a crank pulley, its going to be SRD http://www.superiorracing.com/crankshaft.cfm#

 

when choosing a crank pulley, make sure you get a quality piece that has been certified. anyone can design a pulley and make it on a CNC machine, but has it been approved and certified for competition under strict guidelines.

here's a picture of the Evolution pulley that we sell.

1. its SFI approved: so it passes tech with NHRA and other sanctioning bodies. for cars going faster than 10.99 tech wont approve non-SFI approved aftermarket pulleys if going faster than 10.99

2. SFI testing spins the pulley at 12,500 RPM for 1 hour to test the balance and durability of the pulley.

3. the Evolution pulley uses a certified 7075 aluminum compared to the cheaper 6061 that most other companies offer. 7075 is harder and more durable than 6061

4. Balanced design eliminates the A/C belt and just uses the Alternator belt on the pic shown. Another version lets you use your Power steering as well. no pics on that up yet.

5. Weight is only about 1lb. couldnt exactly see the weight on scale since it barely moved the scale.

 

okay so is the CTR N1 pulley gonna be safe to run?

ive been thinking of getting one for a long time but just wondering if this is harmful to the motor because of ppl mentioning stuff like no harmonic balancer, its not balanced, or it doesnt have some rubber stuff. (feel free to correct me if im wrong, its just the info i got from searching)

i dont have AC or PS, and sometimes i drive to and from san diego, (about 200 miles back and forth)

its sorta a daily driver and also a drag car.

btw the motor setup its gonna go onto is a ls/vtec motor (gsr head)

thanks

 

yeah i jsut got really bored, i have a b20vtec, stock b20z block stock b16a head, dc 4-2-1 header straight piped 2.25 with apexi n1 muffler, dynoed at 165hp 133toq untuned in everyway. andi need a new crank pully so i decided to buy a ctr one only 95bucks so maybe i can pul some mroe power out.

 

i've heard that aftermarket pulleys in the long run arent good for the car and they have also told me the OEM CTR N1 pulley wont do any damage to the motor considering the fact that it is an OEM product........just my .02 i could be wrong

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by emoney9 &raquo;</TD></TR><TR><TD CLASS="quote">i have a stock '00 B16A2 in my EK hatch. this guy is selling me a CTR N1 crank pulley for 60 bucks. what are the advantages and disadvantages? i know i can use a/c and power steering...but what about the crank? is it going to throw it off balance? is my motor going to lose reliability? any info would be great! </TD></TR></TABLE>

For $30 more, you can have a lighter Unorthodox piece that will allow you to retain your A/C (though not the PS since the pulley is intended for the 2nd gen. Integra).

 

I run the CTR N1 pulley on my B18C5 - seems fine to me. Only bad thing is that it seems to dim my headlights at idle, but when I rev the lights brighten up a bit.

I'll post a pic later.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">I run the CTR N1 pulley on my B18C5 - seems fine to me. Only bad thing is that it seems to dim my headlights at idle, but when I rev the lights brighten up a bit.

I'll post a pic later.</TD></TR></TABLE>

so i guess its okay to run it?
what about the harmonic balancer?

does the ctr n1 pulley have a harmonic balancer? any cons on using it?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMalphaSKATER &raquo;</TD></TR><TR><TD CLASS="quote">

so i guess its okay to run it?
what about the harmonic balancer?

does the ctr n1 pulley have a harmonic balancer? any cons on using it?</TD></TR></TABLE>


its an OEM pulley so im pretty sure it does thats why ive heard its the safest of all for your motor

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by TuCKiNaLL4s &raquo;</TD></TR><TR><TD CLASS="quote">


its an OEM pulley so im pretty sure it does thats why ive heard its the safest of all for your motor</TD></TR></TABLE>


thanks
i keep hearing stuff that this n1 pulley does NOT come with a harmonic balancer

can anyone confirm this info
anyone feel free to correct me if im wrong.


the reason why im asking these questions is b/c since im building my LS/vtec motor, i might as well buy one of these pulleys during the build

thanks again

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by JDMalphaSKATER &raquo;</TD></TR><TR><TD CLASS="quote">


thanks
i keep hearing stuff that this n1 pulley does NOT come with a harmonic balancer

can anyone confirm this info
anyone feel free to correct me if im wrong.


the reason why im asking these questions is b/c since im building my LS/vtec motor, i might as well buy one of these pulleys during the build

thanks again </TD></TR></TABLE>

What you're hearing is correct... It does NOT have a harmonic balancer.... people need to get the notion out of their head that if they loose weight off something on the crank, that it will give them 20 horse power or something... It's on there for a reason, stock is good in my book. The reason you have a harmonic balancer is because when the motor is running there is a certain amount of harmonic waves that travel through the crank and the rotational assembly... if you look at a stock pulley it is broken up into a couple pieces, and separated by a piece of rubber. If this is a daily driven car, id keep the stock one on.

If you want to know more... search... there is alot of **** on harmonics that I have no right in talking about because I don't know alot.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Irishweird00 &raquo;</TD></TR><TR><TD CLASS="quote">

What you're hearing is correct... It does NOT have a harmonic balancer.... people need to get the notion out of their head that if they loose weight off something on the crank, that it will give them 20 horse power or something... It's on there for a reason, stock is good in my book. The reason you have a harmonic balancer is because when the motor is running there is a certain amount of harmonic waves that travel through the crank and the rotational assembly... if you look at a stock pulley it is broken up into a couple pieces, and separated by a piece of rubber. If this is a daily driven car, id keep the stock one on.
</TD></TR></TABLE>


thanks for the reply
well this car is mainly going to be a drag car, with some daily driving (prolly drive it like 3-4 days in a week about 100 miles)

i know the HP gain isnt going to be exponential
but you know, since im building the motor, i might as well get everything i need and get it on this motor already, u know what i mean?
as opposed to buying it later and putting it on while the motor is in the car.

thanks for the replies

 

Id stick with the OEM pulley myself. better safe than sorry when it comes to a daily driven car. but thats just me

 

The best suggestion I can offer is to do a search and read over all of the information contained in the threads. This topic, and others like it, have been covered many, many times before.