I'm building an LS for boost to go into my sedan.

I was thinking of shaving off the extra ribs (AC & PS) off the crank pulley and having it balanced while everything's still at the machine shop.

Now after searching and word of mouth I'm hearing a lot of bad things about messing with the crank pulley at all. ******* up bearings, oil pump, etc.

Any opinions on doing shaving off the extra ribs, or even running a CTR or aftermarket crank pulley? I REALLY want this thing to last.....spent too much $$ to expletive it up by getting greedy over a few lbs and a few hp.

Any comments welcome. Thanks, Kevin

 

^ lol, "expletive it up". When did that start?!? Haven't been on here in a while I guess.

 

Just buy an N1 crank pulley. But then again, search about this topic because a lot of people will tell you, an N1 crank pulley will cut the life of your engine down

 

I have had the Civic N1 Pulley on my car for over a year, no problems,
have put about 20,000 miles with it on.

 

i actually had a crank pulley shaved down a long time ago on a b16 i got. it had a massive chunk taken out of outside of it, so a local machine shop milled it down to the Alt only.

still on the engine, still working fine.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redzcstandardhatch &raquo;</TD></TR><TR><TD CLASS="quote">i actually had a crank pulley shaved down a long time ago on a b16 i got. it had a massive chunk taken out of outside of it, so a local machine shop milled it down to the Alt only.

still on the engine, still working fine.</TD></TR></TABLE>

same here with a shaved pulley... 4 years 25k+ miles later still runs like a champ.

 

as long as the bottem end is balanced....go right ahead.

 

let me ask!!! why is the N1 crank pulley not good for an engine??? please answer that for me?? I would like to know the genious who thinks that?? please school me.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicks_jdmstyle_ef9 &raquo;</TD></TR><TR><TD CLASS="quote">let me ask!!! why is the N1 crank pulley not good for an engine??? please answer that for me?? I would like to know the genious who thinks that?? please school me. </TD></TR></TABLE>

The general consensus is that since it doesnt have a rubber damper inside, that it'll mess up your bearings, etc.

 

stock didnt have rubber damper either. its only later and higher end models that had the rubber damper. my 88 d16a6 is running fine after 214K miles.

its to reduce engine vibrations which translate into the body for smoother idling and whatnot.

itll be fine. but its not going to get you much either, so i wouldnt bother.

 

Good to know, Tyson.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by nicks_jdmstyle_ef9 &raquo;</TD></TR><TR><TD CLASS="quote">let me ask!!! why is the N1 crank pulley not good for an engine??? please answer that for me?? I would like to know the genious who thinks that?? please school me. </TD></TR></TABLE>

Like I said others think that, one of the reasons that I heard was it is for race use only, and we all know how many times race teams change there engine in a season.

Its a 50/50 type of deal, 50% think its good, 50% think there bad.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by jisu009 &raquo;</TD></TR><TR><TD CLASS="quote">as long as the bottem end is balanced....go right ahead. </TD></TR></TABLE>

But you have to make sure that the company that is shaving the pulley is going to balance it also.

 

Wow, I'm surprised at these responses.

The bottom end was not balanced as a whole. Only checked to see that everything is in spec.....

The main reason for doing this is to avoid the pulley rubbing on the suspension. My car is only 2" lower than stock, but this will be her first B swap so I want it to go as smoothly as possible.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">stock didnt have rubber damper either. its only later and higher end models that had the rubber damper. my 88 d16a6 is running fine after 214K miles.

its to reduce engine vibrations which translate into the body for smoother idling and whatnot.</TD></TR></TABLE>
Very interesting! I always thought the damper was there to protect the engine.....

So any horror stories? I was pretty much expecting to be talked out of this

 

What's up Mahatma? Have you put that different steering rack on yet? I'd say you should be fine milling the extra ribs off of the crank pulley, but I'd have the machine shop balance the pulley afterwards. I had my ls pulley balanced for my build, but I ended up using a b16 one cause it was lighter. I pm'd you.

 

the LS doesnt have the ballancing or dampening set up... just get an unorthodoz pulley for it!

 

If the motor is internally balanced it wouldnt matter as long as the pulley was balanced. The A6 doesnt have the rubber damper and the damper wasnt for balancing anyways. Dont know about b series motors.

 

I have a "cut down" pulley on my DOHC ZC and no problems after 3 years.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Nisif &raquo;</TD></TR><TR><TD CLASS="quote">What's up Mahatma? Have you put that different steering rack on yet? I'd say you should be fine milling the extra ribs off of the crank pulley, but I'd have the machine shop balance the pulley afterwards. I had my ls pulley balanced for my build, but I ended up using a b16 one cause it was lighter. I pm'd you.</TD></TR></TABLE>
Nick you *******, that rack is the reason I need to worry about this in the first place

Looks like I'll go ahead and do it. Thanks to all who replied.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tyson &raquo;</TD></TR><TR><TD CLASS="quote">stock didnt have rubber damper either. its only later and higher end models that had the rubber damper. my 88 d16a6 is running fine after 214K miles.

its to reduce engine vibrations which translate into the body for smoother idling and whatnot.

itll be fine. but its not going to get you much either, so i wouldnt bother.</TD></TR></TABLE>

Well said. Also a little B series info, first gen B16's had a solid pulley as well, much like the A6. Later B series motors started to incorporate it though.

 

to my understanding the rubber is there to reduce harmonic vibrations and such (which i guess you can get alot of in B-VTEC motors) which can inturn mess up bearings and shatter oil pump gears. i like my stocker and i plan to get my machinist friend to cut off the PS and AC belt stuff. He did it to his B21 VTEC motor which revs to 8500 all the time and we have seen no problems up to this point

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mr_CRX &raquo;</TD></TR><TR><TD CLASS="quote">The general consensus is that since it doesnt have a rubber damper inside, that it'll mess up your bearings, etc. </TD></TR></TABLE>

that and your oil pump will get fucked...

i also had mine machined. but only the PS cuz thats all that broke.i dont see you having any problems

 

There isn't going to be an issue if your bottem end is balanced...obviously the crank pulley is included in the "bottem end."

 

WTF read guys

were not talking about an OUT OF BALANCE VIBRATION


http://www.innerauto.com/Autom...mper/


keep the rubber, and your straight

 

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

were not talking about an OUT OF BALANCE VIBRATION


http://www.innerauto.com/Autom...mper/


keep the rubber, and your straight</TD></TR></TABLE>

The real ones off engines like V8's and such are quite different from the little rubber liner in our honda pulleys

 

how so? both engines have massive combustion events rotating a crank to high speeds. even if its reduced over a v-8. its still going to be there.


to bad mr bone aint on here much anymore he has some really nice shots of his rodbearings after putting a solid pulley on.

anyways truthfully, there was only 1 guy i knew who was a massive proponent of the N1 pulley, and the motor ended up spinning a rod bearing.