Psycho631 Posted January 26, 2011 Report Share Posted January 26, 2011 How can I bench test my new alternator? Im not going to install it for a few months cause its freakin 10 degrees outside so I just wanna see if it is what they say it is. ''The Darkest Souls Are Not Those Wich Choose To Exist Within The Hell Of The Abyss, But Those Wich Choose To Break Free From The Abyss And Move Silently Amoung Us'' Link to comment Share on other sites More sharing options...
dugee81 Posted January 26, 2011 Report Share Posted January 26, 2011 If you can find something that can rotate the pulley thousands of times per minute, that's my guess. I have no idea what it takes to bench test an alt but I'm sure it has something to do with actually spinning the core of it to produce current. 200a alt. by Excessive Amperage hc800 under hood & 2 Deka 9a31 in rear 1/0awg + big 3 SAZ 3000D HDC3 18" @ 2 ohm Link to comment Share on other sites More sharing options...
bumonskateboard6 Posted January 26, 2011 Report Share Posted January 26, 2011 A $150,000 dollar machine that has a small variable rpm electric motor and wires that connect to the alt that measure voltage, current, and RPMs. Current Systems: 2011 BMW 335i Hertz HDP1 DC LVL3 12" Full Carbon Fiber 2002 Acura TlKenwood DNX9980HD2 DCLVL4 12" Subs with LVL5 Parts D.7 CoilsDC 3.5kHertz HSK-165 up front HCX-165 RearHertz HDP4 AmpDC Power Engineering 260 Amp AltBig 3 and amp powered with KNU 1/0XS Power D2400 Up Front i pulled out my dick in class many of times and had it shown. get over it bitch...stupid open legged hairy beavered bitch... going over rms = smaller box, under rms = bigger box... Low voltage doesn't blow amps. That's a myth. A router that does the sub holes makes rounded edges also? Link to comment Share on other sites More sharing options...
Psycho631 Posted January 26, 2011 Author Report Share Posted January 26, 2011 I think autozone tests them for free rite? ''The Darkest Souls Are Not Those Wich Choose To Exist Within The Hell Of The Abyss, But Those Wich Choose To Break Free From The Abyss And Move Silently Amoung Us'' Link to comment Share on other sites More sharing options...
hdorre Posted January 26, 2011 Report Share Posted January 26, 2011 I think autozone tests them for free rite? http://www.stevemeadedesigns.com/board/topic/23792-why-your-local-autoparts-store-cant-test-your-alt-properly/ On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread Link to comment Share on other sites More sharing options...
tejcurrent Posted January 26, 2011 Report Share Posted January 26, 2011 As far as a cheap test bench that's worth building over just bolting into your car you aren't going to find it. You would have to have a motor with pulley that is very similar to your factory crank diameter, and capable of spinning a few thousand rpms. If you have a garage to build a test bench in- it would be quicker and cheaper to just pull your car in. If you don't you'd still have to build the test bench in the cold Then you would also need a spare battery, wire + terminals, a clamp meter, a DMM, and a load capable of pulling at least as much as your alternator is rated. You're looking at a big project to build at 10 degrees, best luck. tejcurrent XS Power T3 Link to comment Share on other sites More sharing options...
Psycho631 Posted January 27, 2011 Author Report Share Posted January 27, 2011 so how do you know if your getting ripped off? They claim to be 250 amps but what if its like only 20 amps or some shit like that. ''The Darkest Souls Are Not Those Wich Choose To Exist Within The Hell Of The Abyss, But Those Wich Choose To Break Free From The Abyss And Move Silently Amoung Us'' Link to comment Share on other sites More sharing options...
Shyne151 Posted January 27, 2011 Report Share Posted January 27, 2011 so how do you know if your getting ripped off? They claim to be 250 amps but what if its like only 20 amps or some shit like that. Throw a clamp meter the wires off the positive post of the alternator once it is installed. Be sure to get both if you do the big 3 or it will be an inaccurate measurement. -Installer for Duke's Car Stereo 2000 Pontiac Grand Prix - Ported Eaton M90 S/C, 3.5" pulley, XS Power Headers, 1.9 Rockers, FWI, Poly Motor Mounts, Custom Tune. RF T1000-1bdCP and T400-4 Boston Acoustics SPG 555 Kenwood eXcelon 995 RF Punch 6.5" components and MB Quart Premium 6x9"s Powermaster Alternator, YellowTop D34, Vmax CT1000 Link to comment Share on other sites More sharing options...
Rebel4055 Posted January 27, 2011 Report Share Posted January 27, 2011 If you bought it off some random ebay person and not a real maker then you got ripped. Rest In Peace mother. January 22, 1955 - February 14, 2013 http://www.stevemeadedesigns.com/board/user/35351-megrch/ Link to comment Share on other sites More sharing options...
Psycho631 Posted January 27, 2011 Author Report Share Posted January 27, 2011 If you bought it off some random ebay person and not a real maker then you got ripped. yea thats what I was thinking. My last alt. was a mech man 340 and I paied $600 for it and the one I just bought is a DC 270 and it was only $300. Im also going to do the big three and get a better battery. I have two optima yelows rite now but they went bad so Im also shopping around for somthing better. ''The Darkest Souls Are Not Those Wich Choose To Exist Within The Hell Of The Abyss, But Those Wich Choose To Break Free From The Abyss And Move Silently Amoung Us'' Link to comment Share on other sites More sharing options...
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