redb16coupe

i have a simple question ive been reading about underdrive pulleys being able to free up lost power and im wondering if its worth the extra 100 bucks to invest in it? also are b series and d series pulleys the same? thanks for the input

crazyguy

aftermarket crank pulley is lightweiight and it is the only advantage.
oem underdrive pulley will free up some hp if u dont use a/c and ps. i mean cut those belts loose


Modified by crazyguy at 6:45 AM 1/9/2008

SkoundrelUSA

Definitly not worth it.

95ProjectEJ1

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SkoundrelUSA &raquo;</TD></TR><TR><TD CLASS="quote">Definitly not worth it.</TD></TR></TABLE>

I agree with you 100% especially if the motor in question is a stock Dseries. So many people waste their money on basic bolt-ons that do nothing in terms of real hp... all they do is drain the wallet and make you later realize that you wish you wouldn't have done it.

crazyguy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95ProjectEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">

I agree with you 100% especially if the motor in question is a stock Dseries. So many people waste their money on basic bolt-ons that do nothing in terms of real hp... all they do is drain the wallet and make you later realize that you wish you wouldn't have done it. </TD></TR></TABLE>
totally agree. i had been there, wasted my money.hated it. wont do that again

95ProjectEJ1

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by crazyguy &raquo;</TD></TR><TR><TD CLASS="quote">
totally agree. i had been there, wasted my money.hated it. wont do that again </TD></TR></TABLE>

Same here... I was fortunate enough to only do I/H/E, but even then I wish I hadn't.

redb16coupe

thats wat i was thinking, yea i got basic i/h/e i have a/c and i plan on boosting it. just to get to around 230-240 to the wheels and still keep it DD.. with not too many probs.. thanks for the advice

crazyguy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redb16coupe &raquo;</TD></TR><TR><TD CLASS="quote">thats wat i was thinking, yea i got basic i/h/e i have a/c and i plan on boosting it. just to get to around 230-240 to the wheels and still keep it DD.. with not too many probs.. thanks for the advice</TD></TR></TABLE>
if u plan on boost it and make it to 230-240 and as reliable as DD . u need to build your internal engine strong

black_EM1

For 240 to the wheels? Stock internals are fine. 300+ you might want to start looking into forged internals. It's insurance in my book.

Underdrive pulleys are trash. Especially the crank pulley. OEM Honda crank pulleys are balanced. Aftermarket? No.

95ProjectEJ1

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by black_EM1 &raquo;</TD></TR><TR><TD CLASS="quote">For 240 to the wheels? Stock internals are fine. 300+ you might want to start looking into forged internals. It's insurance in my book.

Underdrive pulleys are trash. Especially the crank pulley. OEM Honda crank pulleys are balanced. Aftermarket? No. </TD></TR></TABLE>

D's are reliable at 240whp? Good to know.

You can always get the ATI damper and spend 300+ lol

crazyguy

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95ProjectEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">

D's are reliable at 240whp? Good to know.

</TD></TR></TABLE>
+1

G2 Speed

They are useless on Civics...

If it's a BMW etc..., then yes underdrive pulleys do work...

redb16coupe

i was thinking bout it cuz mine it banged up and has some parts chipped off best bet to replace with an oem one?

95ProjectEJ1

iTrader: (5)

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redb16coupe &raquo;</TD></TR><TR><TD CLASS="quote">i was thinking bout it cuz mine it banged up and has some parts chipped off best bet to replace with an oem one?</TD></TR></TABLE>

You could always search for a used one that is in good working condition.

ke98248

iTrader: (1)

Modified by ke98248 at 10:45 AM 1/9/2008

black_EM1

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 95ProjectEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">
D's are reliable at 240whp? Good to know.
</TD></TR></TABLE>

They are if you don't beat on them everyday, and don't really cheap out on too much. That's at the upper end of stock boosted reliability, though. A good tune and I've seen some run for years. Others I've seen die at 220whp. I can't really say yay/nay for the entire lot of them.

I thought about getting an ATI, but realized I wasn't a baller.

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by redb16coupe &raquo;</TD></TR><TR><TD CLASS="quote">i was thinking bout it cuz mine it banged up and has some parts chipped off best bet to replace with an oem one?</TD></TR></TABLE>

Yes.

I'll explain it to you like it was explained to me. Crankshaft pullies are also known as harmonic balancers. Essentially they balance out the vibration from the engine to tolerable levels and keep it all somewhat smooth. Honda OEM harmonic balancers work perfectly with Honda rotating assemblies because that's what they're made to do.

Aftermarket pullies are just metal with ridges on it if you ask me. If you're still indeed set on underdrive pullies, get A/C and P/S. Do not get a aftemarket crank pulley.

Feel free to doublecheck this, as I could be mistaken.

redb16coupe

yea im planning on using my d15b 3 stage head on a 1.7 newer block im not sure if its a sure mate if not ima go with a y8 block throw some pistons block guard i dont know what i can do about the head since im not to familiar with it being the 2 vtecs im guessing the valves and springs should be the same as a normal head?? cam wise i think ill be good with keeping my stock one ebing im not going to crazy. another thing is that i wouldnt know where to find one for this motor i dunno.. gotta see wat happens

Frickr

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by black_EM1 &raquo;</TD></TR><TR><TD CLASS="quote">
Yes.

I'll explain it to you like it was explained to me. Crankshaft pullies are also known as harmonic balancers. Essentially they balance out the vibration from the engine to tolerable levels and keep it all somewhat smooth. Honda OEM harmonic balancers work perfectly with Honda rotating assemblies because that's what they're made to do.

Aftermarket pullies are just metal with ridges on it if you ask me. If you're still indeed set on underdrive pullies, get A/C and P/S. Do not get a aftemarket crank pulley.
</TD></TR></TABLE>


x2

redb16coupe

thanks