JennaBear 1 Posted May 17, 2009 Report Share Posted May 17, 2009 (edited) Black Bear Performance is now offering electric fan harnesses and overdrive alternator pullies (to help with idle amperage) in addition to current services. There are 4 different harness configurations available, which cover all 05+ Tahoe fans and LS1 style fans. Prices $119 for harness with pulley (shipped) $98 just harness (shipped) $30 for just pulley (shipped) (all shipping prices to US) Note: we use higher quality relays than most competitors. Please let us know if you have any questions! :bowtie: Edited May 16, 2010 by JennaBear Quote Link to post Share on other sites
JennaBear 1 Posted June 16, 2009 Author Report Share Posted June 16, 2009 Bump, just got a new batch completed! Quote Link to post Share on other sites
SSmoothSilSS 7 Posted July 3, 2009 Report Share Posted July 3, 2009 Will this harness work for the GM 05 fans going in my 03 SS? Thanks Clay Quote Link to post Share on other sites
JennaBear 1 Posted July 7, 2009 Author Report Share Posted July 7, 2009 Yep, we have a harness for all different applications. You just have to let us know the type of fans and the year vehicle you are hooking them up to, when you order. Quote Link to post Share on other sites
JennaBear 1 Posted October 26, 2009 Author Report Share Posted October 26, 2009 We were out of these for a bit, but just got a new shipment in. Quote Link to post Share on other sites
idahoBLKss 33 Posted October 30, 2009 Report Share Posted October 30, 2009 and what does the pulley do? Quote Link to post Share on other sites
JennaBear 1 Posted October 30, 2009 Author Report Share Posted October 30, 2009 Helps with idle amperage. Quote Link to post Share on other sites
rhodesca1984 0 Posted January 18, 2010 Report Share Posted January 18, 2010 I heard overdrive pulleys help with MPG and HP as well. Do you have a website on these?? I could use one for my 2003 silverado ss for my system in it since I just upgraded the alternator to 250a. Quote Link to post Share on other sites
JennaBear 1 Posted January 18, 2010 Author Report Share Posted January 18, 2010 Black Bear Performance Products Quote Link to post Share on other sites
kersey 0 Posted March 30, 2010 Report Share Posted March 30, 2010 I need to order a harness Quote Link to post Share on other sites
got vortec 0 Posted March 30, 2010 Report Share Posted March 30, 2010 with harness and efans...do i still need to have the pcm redone? Quote Link to post Share on other sites
idahoBLKss 33 Posted February 15, 2011 Report Share Posted February 15, 2011 i just ordered a harness off of your web site , was looking for a number to call to make sure you had them in stock b4 i bought but didn't see one . could you let me know if you got payment ok paypal addy is "[email protected]" and let me know if you have them in stock cause i need asap ... thanks Quote Link to post Share on other sites
SuperDave 0 Posted April 4, 2011 Report Share Posted April 4, 2011 I heard overdrive pulleys help with MPG and HP as well. Do you have a website on these?? I could use one for my 2003 silverado ss for my system in it since I just upgraded the alternator to 250a. Overdrive pulley is to spin the alternator faster... it will not help horsepower at all and could actually hurt the mileage if anything. You're increasing the parasitic loss on the engine. It's to improve the performance of the charging system at idle speeds, to make up for the increased amperage draw of the electric fans. Underdrive pulleys help with mileage... they slow down the accessory drive, freeing up power. But you can suffer driveability and reliability issues with them. Hope that cleared it up somewhat! Cheers. Quote Link to post Share on other sites
ssnewbee 0 Posted November 5, 2013 Report Share Posted November 5, 2013 Hey I am wondering if you guys are still selling these? I looked on the blackbear website and didn't see any for sale? I'd like to buy one for my 03 ss! Quote Link to post Share on other sites
BlackBearPerf 5 Posted November 5, 2013 Report Share Posted November 5, 2013 We no longer sell the efan harness, but you can purchase from ls1fans.com. Quote Link to post Share on other sites
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