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UPDATE: Dual-groove pulley INSTALLED!!!

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Old 03-04-2004
  #301  
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thas a lot smaller than stock, damn.
Old 03-05-2004
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Yup sure is, and will rev a lot faster then stock too.
Old 03-05-2004
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Josh, whats the size of the spacer? I want ot put my pulley on tomorrow and wonder if i could go buy a spacer somewhere.
Old 03-05-2004
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The spacers are custom to fit the shaft of the crank, and the space of the pulley no special measurement I could give you to go buy
Old 03-05-2004
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Ok guys, flame flame flame, but I need to know the answer. I know HOW to install the pulley, but the timing issue

Basically if I remove everything to where the head is revealed. Then I turn the crank to where my pistons are at the top most part of the head. Then I mark the stock pulley along with the cover. Then I put on the new pulley and make sure that the pistons are still at the top, mark it, put everything back and then everything will be strait? GImme some info. LOL.
Old 03-05-2004
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The ONLY reason for the timing is so you or a tuner knows in what position the piston is at the top. This is so you don't have to open everything back up to check later (if you didn't make the mark).

Setting the timing is not necessary for the pulley to function, only so you know where the piston faces up for future reference. I don't know why, but something to do with tuning it later.
Old 03-05-2004
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Setting your timing is vital to ensure optimal power. Ok it's simple when you know your #1 piston is at top dead center, you put the pulley on and where the mark is on the timing cover make it on the pulley. Simple as that. If you do the piston that is the hardest part you just match the marks from pulley to timing cover not hard at all. Thanks
Old 03-05-2004
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so basically u put the mark and take off the other stuff just to ensure that the crank didn't turn once you install the pulley?
Old 03-05-2004
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Once the pulley is on you make a mark it should be the last thing you do. Trim the cover, ect... then put the pulley on turn it till it's at top dead center and make the mark.
Old 03-05-2004
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sounds pretty easy to me
Old 03-05-2004
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it does sounds easy, but I guess, we ourselves can't actually figure out if the timing is right?
Old 03-05-2004
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why's that?
Old 03-05-2004
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I dunno, I guess what i'm trying to say is. When I install this, and line it up to the stop before I take off the first pulley. I should try to keep it at the exact point once I install the new one, or else how am I going to throw off the timing?
Old 03-06-2004
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That's why you put the piston at top dead center. It ensures the piston is at perfect center
Old 03-06-2004
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cant you do that with a screwdriver in one of the sparkplug holes?
Old 03-06-2004
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What do you mean just look through the spark plug hole and know it's on top dead center
Old 03-06-2004
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Originally posted by auto84
cant you do that with a screwdriver in one of the sparkplug holes?
I think he means to keep the crank from turning while tightning / loosening.....I think that is what he means
Old 03-06-2004
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Ok, does faster revs automatically mean more power? Cuz I assume if you get into your power band faster, you'd have more power sooner = faster times. Right?
Old 03-06-2004
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Ok, does faster revs automatically mean more power? Cuz I assume if you get into your power band faster, you'd have more power sooner = faster times. Right?

I think that is what happens but not sure, ask Josh. I would think that is true. The faster the rpm's reach the faster the car goes.
Old 03-06-2004
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You will get better acceleration and better times yes, and the pulley frees up HP, but faster revving doesn't necessarily mean more power, just getting through the power faster. Faster Revving combined with additions to the motor equals very good time decrease
Old 03-06-2004
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wow, great thread. Is that DIY out yet?
Old 03-06-2004
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not yet, I want one
Old 03-07-2004
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ya, someone needs to make a DIY once they get it installed and have all info. SOON!
Old 03-07-2004
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When I get the spacer I'll make a DYI.
Old 03-07-2004
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Originally posted by Jodster
When I get the spacer I'll make a DYI.
excellent!
Old 03-07-2004
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Sorry the spacer is taking so long, but I should have them by today, so I should have them all out tomorrow. Hopefully. Ugh.
Old 03-07-2004
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Originally posted by DhRacingJosh
Sorry the spacer is taking so long, but I should have them by today, so I should have them all out tomorrow. Hopefully. Ugh.

Yeah!
Old 03-07-2004
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I was reading dh-racing.com web site and it said this pulley is supposed to add 20 hp. Is this true?
Old 03-07-2004
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that's only for the single groove pulley. the dual groove pulley (which keeps a/c and ps) gives about 10 hp.
Old 03-07-2004
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Yup the single groove is the most powerful being it bypasses everything that holds your motors power.


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