pulleys?
Honda-Tech Member
Joined: Mar 2006
Posts: 125
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From: SE-MI
Re: pulleys? (DarkSI06)
Underdrive pulleys are a waste of time. You don't really get a noticeable power increase, and you have to buy new belts on top of that.
I've never heard the engine wear claim, but I do know that underdriving can damage the A/C compressor, plus your alternator won't be putting out the full voltage, etc. Not worth the effort (for minimal gains, if any.)
I did install a lightweight crankshaft pulley on my SE-R, but only because it's powered by a long-stroking tractor engine, and I wanted better throttle response. The Si doesn't have that problem, so there's no point in getting one of those, either.
Save your $$$ for a JRSC.
I've never heard the engine wear claim, but I do know that underdriving can damage the A/C compressor, plus your alternator won't be putting out the full voltage, etc. Not worth the effort (for minimal gains, if any.)
I did install a lightweight crankshaft pulley on my SE-R, but only because it's powered by a long-stroking tractor engine, and I wanted better throttle response. The Si doesn't have that problem, so there's no point in getting one of those, either.
Save your $$$ for a JRSC.
Honda-Tech Member
Joined: Mar 2006
Posts: 125
Likes: 0
From: SE-MI
Re: pulleys? (fireslinge)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by fireslinge »</TD></TR><TR><TD CLASS="quote">i had the AEM ones on my Prelude... the battery died alot if you let the car sit or do alot of short city trips. </TD></TR></TABLE>
Thank you for illustrating my point perfectly.
The alternator does not really recharge the battery at idle rpms, and underdriving it limits it's ability to recharge the battery once the car is underway. I didn't realize the pulleys had that much of an effect though...I take it this was a regular occurence?
Thank you for illustrating my point perfectly.
The alternator does not really recharge the battery at idle rpms, and underdriving it limits it's ability to recharge the battery once the car is underway. I didn't realize the pulleys had that much of an effect though...I take it this was a regular occurence?
Joined: Jul 2006
Posts: 4
Likes: 0
From: Laurel, MD, USA
Re: pulleys? (Sugar Shane)
<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Sugar Shane »</TD></TR><TR><TD CLASS="quote">Underdrive pulleys are a waste of time. You don't really get a noticeable power increase, and you have to buy new belts on top of that.
I've never heard the engine wear claim, but I do know that underdriving can damage the A/C compressor, plus your alternator won't be putting out the full voltage, etc. Not worth the effort (for minimal gains, if any.)
I did install a lightweight crankshaft pulley on my SE-R, but only because it's powered by a long-stroking tractor engine, and I wanted better throttle response. The Si doesn't have that problem, so there's no point in getting one of those, either.
Save your $$$ for a JRSC. </TD></TR></TABLE>
I agree..I had it for accord and 93 civic..just waste time and money.
I've never heard the engine wear claim, but I do know that underdriving can damage the A/C compressor, plus your alternator won't be putting out the full voltage, etc. Not worth the effort (for minimal gains, if any.)
I did install a lightweight crankshaft pulley on my SE-R, but only because it's powered by a long-stroking tractor engine, and I wanted better throttle response. The Si doesn't have that problem, so there's no point in getting one of those, either.
Save your $$$ for a JRSC. </TD></TR></TABLE>
I agree..I had it for accord and 93 civic..just waste time and money.
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