underdrive pulleys
Thread Starter
Teching In
Joined: Jan 2011
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From: Rcoky Mount, VA
underdrive pulleys i looked for a topic on this but i couldnt really find one for an LT1. i know ive heard some people are opposed to them, this isnt the thread for that though.
im looking for some good quality underdrive pulleys, i cant really find anything on jegs, or summit, idk why, but any suggestions? also what is my expected gain you think? (the engine is stock only thing ive done is the flowmaster muffler cat delete system)
im looking for some good quality underdrive pulleys, i cant really find anything on jegs, or summit, idk why, but any suggestions? also what is my expected gain you think? (the engine is stock only thing ive done is the flowmaster muffler cat delete system)
23% asp pulley here.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
Thread Starter
Teching In
Joined: Jan 2011
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From: Rcoky Mount, VA
Most vehicles have a belt driven waterpump which is quite power hungry. Underdriving it along with everything else certainly frees up power. With the LT1 though the waterpump not being belt driven this reduces the potential gains.
Most of us see a .1 improvement at the track removing the serpentine belt entirely. Stands to reason that at best you would then see a .023 gain from a 23% underdrive. If you need a new damper anyway though it might be a good opportunity to get a little extra gain from a "repair".
I would look at valvesprings and 1.6 rockers LONG before this.
Most of us see a .1 improvement at the track removing the serpentine belt entirely. Stands to reason that at best you would then see a .023 gain from a 23% underdrive. If you need a new damper anyway though it might be a good opportunity to get a little extra gain from a "repair".
I would look at valvesprings and 1.6 rockers LONG before this.
Thread Starter
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From: Rcoky Mount, VA
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From: centerville, ohio
23% asp pulley here.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
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From: Rcoky Mount, VA
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On The Tree
Joined: May 2011
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From: Gilbert, Az
bought one off ebay for like $70 shipped.. Every little bit counts IMO. Do It.
http://cgi.ebay.com/ebaymotors/93-97...Q5fAccessories
Nice... I didn't know they made that.. Looks like I will be selling my "piggy back" pulley now lol 
http://cgi.ebay.com/ebaymotors/93-97...Q5fAccessories
23% asp pulley here.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
http://fasttoys.net/shop/product_inf...roducts_id=701
I wouldn't waste my $$ on a piggy back system, then again if you're stock money could be spent elsewhere for bigger gains.
TECH Regular
Joined: Jan 2011
Posts: 468
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From: Nw suburbs chicago
it all adds up I want to do them to but im looking at the cheaper bigger gains first or to save a lil bit longer to get mid pricey stuff then that , IM lookin at headers ,jegs xpipe, then elec water pump , some 1.6rr , tq converter , 3.73s, ls1 driveshaft, then the pulleys and hypertech
