Mitchaford Posted April 26, 2017 Report Share Posted April 26, 2017 1 minute ago, 8ten8 said: Good lord...from 8 to 1. Thats one hell of a ratio. Lol Yeah but those batteries are tiny. Honestly, wish I spent that money on an alt. Personally I suggest thats the first thing you budget for. 2008 VW Jetta Team Fi 12 CT 4000.1 CT 125.4 PWX 6.5 80 PRS EB Flex 2/0 Second Skin ^^^ Build ^^^ Link to comment Share on other sites More sharing options...
8ten8 Posted April 26, 2017 Author Report Share Posted April 26, 2017 9 minutes ago, Mitchaford said: Yeah but those batteries are tiny. Honestly, wish I spent that money on an alt. Personally I suggest thats the first thing you budget for. Copy that. I'm in the process of purchasing a US alt. My choices are so far: 170 hot@ idle-220 hot@ 2000rpm or 120 hot@ idle-240 hot@ 2000rpm. I don't do alot of freeway driving. What's your thoughts? Link to comment Share on other sites More sharing options...
Mitchaford Posted April 26, 2017 Report Share Posted April 26, 2017 Just now, 8ten8 said: Copy that. I'm in the process of purchasing a US alt. My choices are so far: 170 hot@ idle-220 hot@ 2000rpm or 120 hot@ idle-240 hot@ 2000rpm. I don't do alot of freeway driving. What's your thoughts? I'd buy the 220. +50 more amps @ idle would be for me. My car is stick and I drive like a grandma so Im in low rpms 99% of the time. Aren't US alts underrated? or is that someone else? I've never had any HO alt other than excessive so I don't have experience with any other company. 2008 VW Jetta Team Fi 12 CT 4000.1 CT 125.4 PWX 6.5 80 PRS EB Flex 2/0 Second Skin ^^^ Build ^^^ Link to comment Share on other sites More sharing options...
WalledSonic Posted April 26, 2017 Report Share Posted April 26, 2017 More idle amps. 120A at idle isnt much. Especially if you are stop-and-go a lot or enjoy demoing Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
hdorre Posted April 26, 2017 Report Share Posted April 26, 2017 3 hours ago, 8ten8 said: Yeah, Tony D. I saw the same vid a while back. The test proved positive. Long runs not needed. He also only used an amp that drew about 175A (his words). Im curious as to how results vary with a "large" draw. 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...
ShadeTreeMechanic Posted April 27, 2017 Report Share Posted April 27, 2017 On a unibody car you will want one ground run per positive run after the first two positive runs. This is with grounding to the chassis. Full frame can do more positive runs before negative runs are needed. The only way to truly know how many runs you need is to keep adding runs until no improvement is found. Then add one more. 91 C350 Centurion conversion ( Four Door One Ton Bronco) 250A Alternator (Second Alternator Coming Soon) G65 AGM Up Front / Two G31 AGM in Back Pioneer 80PRS CT Sounds AT125.2 / CT Sounds 6.5 Strato Pro component Front Stage CT Sounds AT125.2 / Lanzar Pro 8" coax w/compression horn tweeter Rear Fill FSD 5000D 1/2 ohm (SoundQubed 7k Coming Soon) Two HDS315 Four Qubes Each 34hz (Two HDC3.118 and New Box Coming Soon) Link to comment Share on other sites More sharing options...
8ten8 Posted April 27, 2017 Author Report Share Posted April 27, 2017 Ok. So far, under the hood, I've got 2 grounds from chassis to front batt, 2 grounds from block to front batt, 2 grounds from block to chassis and 2 power runs from front batt to rear. Nothing in the rear yet. Thoughts? It's a 02 Subaru outback Link to comment Share on other sites More sharing options...
WalledSonic Posted April 27, 2017 Report Share Posted April 27, 2017 I wonder if electrical noise could be a concern with amps going to chassis ground. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
8ten8 Posted April 27, 2017 Author Report Share Posted April 27, 2017 1 minute ago, WalledSonic said: I wonder if electrical noise could be a concern with amps going to chassis ground. What would be an alternative to grounding amp to chassis? Link to comment Share on other sites More sharing options...
WalledSonic Posted April 27, 2017 Report Share Posted April 27, 2017 Directly back to battery ground. Battery ground is the truest ground. Its the voltage source. Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
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