DCmagnum Posted February 5, 2011 Report Share Posted February 5, 2011 Does anyone have a ho alt. What does ur voltage sit at at idle. For some reason mine sits at >12. Wtf. Its a mechman Quote ="Impact"] pioneer 4200 dvd 4 sets aa carbon mids 2 sets rockford power t1 tweeters rockford power t400.4 rockford power 4inch DC 175.4 DC 3.5k (soon to be 2) 2 DC XL 15s The artist formally known as willie3719 Link to comment Share on other sites More sharing options...
dwright27 Posted February 5, 2011 Report Share Posted February 5, 2011 Possibly the way the ecu regulates it? Quote 2006 F-150 4 DC XL M2 18's Walled Daily Driver XS Power 4 DC 3.5kw Team DC Team S.P.L. Lot of Audio Technix and 1/0 DC Audio Dealer American Bass Dealer XS Power Dealer Audio Technix Dealer Link to comment Share on other sites More sharing options...
TheycallmeJT Posted February 5, 2011 Report Share Posted February 5, 2011 ive got a charger and ive heard so many things about people shouldnt do h/o on our cars cause the pcm is what controls the voltage output..and because our cars idle so damn low most aftermarkets dont put out anything at low idle speed Quote Link to comment Share on other sites More sharing options...
BulletInjection Posted February 5, 2011 Report Share Posted February 5, 2011 I was told output was computer regulated as well... but that just sounds fishy Quote My build: http://www.stevemeadedesigns.com/board/ind...8920&st=100 http://www.youtube.com/Bulletinjection Link to comment Share on other sites More sharing options...
keepinitloud Posted February 5, 2011 Report Share Posted February 5, 2011 never tested mine with the stock alt but I sit at 14.4 now with my Iraggi Quote 06 chrysler 300C Hemi one mmatts dreadnaut 15 powered by a planet audio vx 2200d fosgate p200 running planet audio 8" midbass drivers and super compression tweeters stock battery and a stinger spv44 Irragi 300 amp alternator big 3 1/0 http://www.stevemeadedesigns.com/board/topic/55075-system-in-my-300c/page__view__findpost__p__763656__fromsearch__1 Link to comment Share on other sites More sharing options...
Guest DC Power Rob Posted February 5, 2011 Report Share Posted February 5, 2011 You just have a vehicle that has the trifecta problem, small crank pulley, small stock alt pulley, and 550 rpm idle speed... Your only going to see maybe 2000 alt rpms, on a GOOD day at idle. Look at your dyno sheet at 2k alt RPM and there's about your true idle output, but your actual idle output will be slightly lower. Don't believe what you hear about the Chrysler PCM and HO Alts, it's total, complete BS.. given my voice of regulator I'd take a Chrysler PCM ANY day over any internal voltage regulator in existence, they are that good and that strong as a field switch. Quote Link to comment Share on other sites More sharing options...
DCmagnum Posted February 6, 2011 Author Report Share Posted February 6, 2011 You just have a vehicle that has the trifecta problem, small crank pulley, small stock alt pulley, and 550 rpm idle speed... Your only going to see maybe 2000 alt rpms, on a GOOD day at idle. Look at your dyno sheet at 2k alt RPM and there's about your true idle output, but your actual idle output will be slightly lower. Don't believe what you hear about the Chrysler PCM and HO Alts, it's total, complete BS.. given my voice of regulator I'd take a Chrysler PCM ANY day over any internal voltage regulator in existence, they are that good and that strong as a field switch. so how do i fix this just change the pulleys??? it really pisses me off sitting at a red light or something. the radio sounds like a walkman or something when the batterys are just about dead then when the rpms are up a bit the radio gets clear and like doubles the volume...at lower volume Quote ="Impact"] pioneer 4200 dvd 4 sets aa carbon mids 2 sets rockford power t1 tweeters rockford power t400.4 rockford power 4inch DC 175.4 DC 3.5k (soon to be 2) 2 DC XL 15s The artist formally known as willie3719 Link to comment Share on other sites More sharing options...
Beanz Posted February 6, 2011 Report Share Posted February 6, 2011 maybe you got a dead battery or something man? do you ahve the big 3? Quote That's why they don't deliver. Yer ass better go sit along the side of the road and wait. You can't expect them to travel up some dirt road in a hick / back woods town. Thats how horror movies start I explain things very simply and use analogies in terms of Pickles, and grape drink, pool noodles and jackhammers...if you can't put 2 and 2 together there man, There simply is not much more I can do. Link to comment Share on other sites More sharing options...
DreDay256 Posted February 6, 2011 Report Share Posted February 6, 2011 (edited) What motor do you have? What Mechman do you have? Do you have a Predator or Trinity programmer? Edited February 7, 2011 by DreDay256 Quote TEAM Fi CAR AUDIO/ TEAM CRESCENDO AUDIO Bagged '06 Dodge Magnum R/T "WICKED WAYS" -4 Fi SP4 18's (4th Order) -2 Fi SSD 10's (midbass) -4 Diamond Audio D6 Comp Sets -1pr. Crescendo FT-1 Supertweets -Dual Alts -6 XS Power Batts -4 Crescendo BC3500d's (subs) -1 Crescendo BC2000d (10's) -1 Crescendo c1100.4 (comps) Link to comment Share on other sites More sharing options...
Guest DC Power Rob Posted February 7, 2011 Report Share Posted February 7, 2011 so how do i fix this just change the pulleys??? it really pisses me off sitting at a red light or something. the radio sounds like a walkman or something when the batterys are just about dead then when the rpms are up a bit the radio gets clear and like doubles the volume...at lower volume It's not something you can just "fix". There are a LOT of cars like this where you have conditions you cant overcome, no matter what you do. You have a small crank pulley, a very small stock alternator pulley, and a very low engine idle. The OEM's use these alternators because they can still get their required output at VERY low RPM's (your stock pulleys are akin to a set of "horsepower" pulleys), and it helps their CAFE ratings. Even running a 1.8" pulley on these cars only get's alternator RPM's up to around 18-1900 or so. Your stock alternator is the most efficient alternator there is, period. Not running something that efficient is going to end up like what you have, low output at idle. Your stock alternator will outrun any other type of old school alternator in stock or H/O form up to about 2500 alt RPM's. Unfortunately on your car, you have a pulley ratio just just cant overcome, no matter what you do. It has nothing to do with whether you got a good or bad alt, it's just in an RPM range it doesn't want to be in. Quote Link to comment Share on other sites More sharing options...
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