fox_racin4 Posted November 22, 2011 Report Share Posted November 22, 2011 ok, so my set up consists of 1 425a mechman alt and 2 250a alts on start up all 3 alts are cold, but after aboutt 1 min idling the MM alt is at about 160 degrees fahrenheit, the alt doesnt even make power till about 1500rpm.. soo what would casue it to get so hot, so quick? Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Socky Posted November 22, 2011 Report Share Posted November 22, 2011 i would call mechman see what the issue is, or the average running temp. of the amp. Quote Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell Kenwood H/U 1/0 wire, 136 amp alt 200 ah batteries 12.7 daily 2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts Mb quart 125.4 wired to 4 aura 6's 3.6 cube box tuned to 36 plays down to 23hz Link to comment Share on other sites More sharing options...
fox_racin4 Posted November 22, 2011 Author Report Share Posted November 22, 2011 by the time i get home hes closed its already been in once for repair as well.. Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
matt@mechman Posted November 23, 2011 Report Share Posted November 23, 2011 It's a 425 amp competition alternator. we told you when you bought it that it would require special care in it's use, or it can overheat. I have had one on my truck for almost a year, daily driven, with no problems whatsoever- but I am also mindful about maintaining my batteries. It is totally normal for ANY alternator to operate in the 220-240 degree F range, especially if it is attached to a large load or battery bank. By the way, e-mail works 24/7, so feel free to send us one if you have any more questions. Quote Link to comment Share on other sites More sharing options...
Team Nemesis-DJ Posted November 23, 2011 Report Share Posted November 23, 2011 Its not odd for the "higher" output alts to get hot ...My DC Power alts got pretty hot ... Quote Link to comment Share on other sites More sharing options...
fox_racin4 Posted November 23, 2011 Author Report Share Posted November 23, 2011 i know it will get hot, but getting that warm so quick? Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
KillaCam Posted November 23, 2011 Report Share Posted November 23, 2011 The motor is spinning the belt creating some friction and that puts off heat. It's also being converted to electricity and electricity is not cold. It's normal for it to be hot with everything it does. Hows your voltage? If its right on then I wouldn't worry about it. Quote And the fact more than one person agrees does not make it a circle jerk, it makes it a bukkake scene and you're in the middle Chick took 3 shots of Jager, and then, pissed in my mouth.. B5 Passat Build Log Link to comment Share on other sites More sharing options...
fox_racin4 Posted November 23, 2011 Author Report Share Posted November 23, 2011 the alt makes hardly any power at idle.. i was told about 80a or so.. and after a minute of idling the alt is already hot, thats from a cold start Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
fox_racin4 Posted November 23, 2011 Author Report Share Posted November 23, 2011 the alt makes hardly any power at idle.. i was told about 80a or so.. and after a minute of idling the alt is already hot, thats from a cold start Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
kickass audio Posted November 23, 2011 Report Share Posted November 23, 2011 I really wouldnt worry about it. I dont have a huge alt like yours but i have a 270 mechman alt in my '04 envoy and it gets very warm but it never failed on me and works like a champ. I just wish i had a voltage boost module with my alt (one of these days ill get it, just need to see if the guys at mechman can make me one long enough since my alt is halfway down my damn engine). I rail on my alt to all hell by running a dc 5.0k and 6 batteries and at full tilt it gives the alt a decent workout but it never fails putting out power unless its at idle which i cant say is bad because damn near no alts can put out intense amounts of power at idle so i love my alt. I would just keep an eye on it and make sure everything is fine on it. Mine gets warm fast too but i also start putting big loads on it when my engine is warm. Back when i didnt have the system in my envoy and i ran the mechman 270, xs s3400 and a single d3100 just for my 175.4 the alt was room temperature but now that i hammer on it with my 5.0k and 3 more d3100's it has a lot to do in order to keep those batteries charged. Quote 2004 GMC Envoy1 XS power S3400 batt under the hood and 4 XS Power D3100's battery installed in the rear by the amps0 gauge power wire from front to backAlpine iva-w205 touchscreen dvd/cd/mp3/ipod/am/fm/gps headunitSundown Audio SAX-200.4 amp for my mids and highs8 gauge speaker wire from amp to woofer270 amp Mechman AltRockford Fosgate T1652-s component speakersRockford Fosgate 3Sixty.2 sound processorRca's from Rockford Fosgate and Monster Cable14 gauge speaker wire for the mids and highs1 18" Ascendant Audio SMD Dual 1 ohm with custom Black & Blue carbon fiber and hand signed dustcapBox: 5.66 cubic feet net volume box tuned to 30.13Hz with 1.5" wide wooden dowels and 1.5" thick baffle1 DC Audio 5.0k amp wired to .5 ohms nominal with an imp rise of 1.35 ohms for the single AA SMD 18"Future Vision 8000k 50w bi-xenon projector HID's with 4300k 35w fog lightsLink to my build: Buildupdates/progress Link to comment Share on other sites More sharing options...
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