Lightweight Pulleys ? - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Mike2ss · 12-20-2009, 09:41 PM

Anyone have any knowledge on the new lightweight pulleys?

will they affect the engine in anyway, what about balance?

HorsePowerAddicts · 12-20-2009, 10:51 PM

Are you reffering to an underdrive crank pulley? If so they will show a 7-10rwhp gain. They are a neutral balance just like the stock pulley so the balance will be the same.

chappy48 · 12-20-2009, 11:14 PM

Are there any stock diameter lightweight pulley's out there yet? From my understanding don't you lose hp on a positive displacement supercharger with an underdrive pulley?

Kyle2k · 12-20-2009, 11:24 PM

Any performance shops that would have a good recommendation on which company to go with?

bijanmaleki · 12-21-2009, 06:07 AM

We use a lot of the SLP underdrive pulleys, quality billet pieces. The spin the accessories slower (ie. alternator, water pump, power steering,etc.) which takes less hp away from the motor. Chappy48, the supercharger is run off of the crank, turning it slower would result in less boost and therefore less hp, in supercharged applications it is just the opposite, usually you go with an overdriven crank pulley to turn the supercharge faster and make more boost. I haven't looked into it a whole lot but imagine that there is an application out there for you. Here is the link to the SLP pulley and a picture of it.

http://adrenalineparts.com/slp-harmo...ro-p-1057.html

thunderwagen · 12-21-2009, 04:25 PM

Inovators west makes an overdriven 8 rib conversion for supercharged applications

Mike2ss · 12-21-2009, 09:37 PM

Quote:

Originally Posted by HorsePowerAddicts

Are you reffering to an underdrive crank pulley? If so they will show a 7-10rwhp gain. They are a neutral balance just like the stock pulley so the balance will be the same.

yes, not sure of what the implications might be towards the engine and maintaing balance. But it sounds like all is positive with no issues.

bijanmaleki · 12-22-2009, 05:03 PM

It is balanced to have no implications in terms of bearing wear or anything detrimental to the engine.

12-20-2009, 09:41 PM	#1
Mike2ss Airborne Pathfinder Drives: Camaro ZL575 Join Date: Nov 2009 Location: San Benito, TX Posts: 1,139	Lightweight Pulleys ? Anyone have any knowledge on the new lightweight pulleys? will they affect the engine in anyway, what about balance? __________________ 2010 Camaro Indy 500 Pace car, LS3-ZL575 Other cars are- 95 BMW 325 sedan- AA exhaust, AA CAI, AA Strut bar, AA chip, M3 rotors and calipers, racing clutch, oversized injectors, upgraded M3 interior- Audi A4 SLine, with black out optics

12-20-2009, 11:14 PM	#3
chappy48 Drives: 2010 Camaro Auto 2SS/RS Join Date: Oct 2008 Location: Wauconda, IL Posts: 878	Are there any stock diameter lightweight pulley's out there yet? From my understanding don't you lose hp on a positive displacement supercharger with an underdrive pulley? __________________ Built by Jannetty Racing 670rwhp/649rwtq...Scariness to be determined. Jannety Racing forged 416. TVS2300 Supercharger w/Maggie Max Stage 2, 3.6 Pulley, Innovators West 8 rib conversion, OD rear Cog belt drive. Jannetty Racing Rough Idle Cam, LS3 Conversion. Jannetty Racing built 6l80e Trans, Jannetty Racing Custom Converter, Built rear diff w/ 3.45 gears, DSS driveshaft and 1400 hp axles. ADM Twin Pump Fuel System, ADM CAI, Dynatech 1 7/8" Coated Headers, Borla "S" Catback. Custom 18" Forgestar F14's, Nitto 305/45-18 DR's

12-20-2009, 11:24 PM	#4
Kyle2k LVL 50 Troll Stomper Drives: 2010 Camaro Join Date: Feb 2008 Location: Indianapolis Posts: 3,463	Any performance shops that would have a good recommendation on which company to go with? __________________

12-21-2009, 06:07 AM	#5
bijanmaleki Drives: 04 GTO/10 Camaro/69 Camaro Join Date: Sep 2009 Location: Scottsdale AZ Posts: 35	We use a lot of the SLP underdrive pulleys, quality billet pieces. The spin the accessories slower (ie. alternator, water pump, power steering,etc.) which takes less hp away from the motor. Chappy48, the supercharger is run off of the crank, turning it slower would result in less boost and therefore less hp, in supercharged applications it is just the opposite, usually you go with an overdriven crank pulley to turn the supercharge faster and make more boost. I haven't looked into it a whole lot but imagine that there is an application out there for you. Here is the link to the SLP pulley and a picture of it. http://adrenalineparts.com/slp-harmo...ro-p-1057.html __________________ 04 Goat, 69 Camaro, 2010 Camaro

12-22-2009, 05:03 PM	#8
bijanmaleki Drives: 04 GTO/10 Camaro/69 Camaro Join Date: Sep 2009 Location: Scottsdale AZ Posts: 35	It is balanced to have no implications in terms of bearing wear or anything detrimental to the engine. __________________ 04 Goat, 69 Camaro, 2010 Camaro

12-20-2009, 10:51 PM	#2
HorsePowerAddicts Drives: LSx Powered Join Date: Oct 2009 Location: 19804 Posts: 448	Are you reffering to an underdrive crank pulley? If so they will show a 7-10rwhp gain. They are a neutral balance just like the stock pulley so the balance will be the same.

12-21-2009, 04:25 PM	#6
thunderwagen Drives: Silver Ice 2SS M6 Join Date: Jun 2009 Location: Ft. Worth, TX Posts: 136	Inovators west makes an overdriven 8 rib conversion for supercharged applications

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