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Would a lighter pulley set make much of a difference in my cars performance? Any help would be appreciated
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Since your a n00b I won't give you too much shit for not searching.
Use the Advance search for this topic and you will have more threads to read than you can shake a stick at.
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Compared to the weight of the flywheel you might pick up a HP or two but that is about it.
Not worth the effort...
Pinche Guero!
They look pretty. If you do a ton of engine mods, and race car.. there may be a tiny difference. Not just a dyno thing, but a response thing, too...
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I can't search, my computer died and I have to use my iPhone which does not have a search option.
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Can't comment on the pulleys but I use my iphone all the time on the forum and you can search just fine.Originally Posted by acoumvoulidis
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How? I'm using an app called tapatalk
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I've got pullies and also pretty much every bolt on I could do pullies were just one of the last mods I hadn't done and I didn't notice any power really maybe just better response.
92 325i- afe intake, bavauto coils, m3 h&r race springs, m3 koni yellows, m3 solid rubber bushings, sparco strut bar, TMS sway bars, bavauto chip, shorty headers, AA track pipe, borla exhaust, evosport pullies, FDK, stewart waterpump, silicone intake hose, silicone rad hoses, alum rad, reinforced subframe, brembo BBK, 3.23 LSD, uuc weighted shift knob, AA short shifter, m3 bumpers, DS1's, TURBO S50 BUILD IN THE WORKS
06 GSXR-600- jardine gp1 pipe, PC3, RK quick accel kit, k&n filter
04.5 duramax CCSB- K&N filter, AFE turbo inlet pipe, 4 inch turbo back straight pipe, PPE xcelerator 120hp tune, 6 inch tip
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Get rid of that and run the full site through Safari.
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Alot of folks with manual transmissions use a "lightened flywheel" for better response.
Tbd
My Drip Loops Are Better
Guys, OP was talking about pulleys not flywheels. Lighter pulleys won't make a difference, and neither will a smaller alternator pulley due to the voltage regulator. however, an underdriven powersteering pump and ac compressor will make a decent difference. Most claim 4-12 hp gains. Anything you'll feel? No, but every little bit adds up.
Lightweight flywheel will make a bigger difference in the lower gears. It's "fake hp" though. All it's really doing is transfering power from the engine to the wheels easier. So if anything your engine bhp is staying the same but the whp will increase.
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Underdrive FTW. Actual mass of the pulleys makes little to no difference.
Perry
Death to Opec...
let it be noted...most underdrive pulleys ARE lighter if i remember correctly
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Yes. But that is not why they perform better.
Perry
My Drip Loops Are Better
Correct. They're made out of aluminum because it's easier to work with than hardened steel and they don't flex so there's no need for an extra strong/heavy metal. Instead the pulleys are smaller.
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waste of money
My Drip Loops Are Better
Just because its not as significant of an increase as going FI doesn't mean it's a waste. It all adds up and not all of us want to go past bolt-ons.
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BMW CCA Member
The pullies being lighter doesn't matter, its the diameter of the pulleys that gives you the power.
Editing by: Blitz355
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It also has to do with weight the less unsprung weight the engine has to spin the more power is transfered into turning the wheels
06 GSXR-600- jardine gp1 pipe, PC3, RK quick accel kit, k&n filter
04.5 duramax CCSB- K&N filter, AFE turbo inlet pipe, 4 inch turbo back straight pipe, PPE xcelerator 120hp tune, 6 inch tip
My Drip Loops Are Better
This is true more of something like a flywheel. but pulleys being lighter only matter for the first like half a second the engine is turning over. once it's on it makes no difference.
Member
What kind of bolt ons do u have as I am pretty new to the BMW scene and just want to stick to bolt on mods for now, is there anything you would recommend?
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