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Problems w/ Mechman alt on 06' GS430


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Hi, I've been trying to get into contact with steve to see what his input was on his system on his Lexus. But the shop said he's a private party and he owns his own side shop next to the shop I called... I didn't want to bother them any further.

I didn't externally regulate my alt, in hopes of good results, but I seem to be stuck at the same voltage ratings, just the voltage kicks up faster upon RPM cycling upwards.

I'd say my voltage @ 500rpm ranges from 12.9V-13.4V, and if I accelerate up. At COLD crank, I get a good 14v, after warmup, I can't seem to get past 13.5-13.7v.

I'm currently using a Optima Yellow Top for my setup, I've ran in parallel to the OEM system, a 1/0 gauge wire from the alt to batt, and 1/0 gauge in parallel from the alt to the chassis.

I can also take photos if it helps anyone figure out what I mean.

FWIW, resting voltage on my Optima's surprisingly pretty sucky IMO. It rests at 12.3-12.4V, apparently the autoparts store I purchased the battery at says that 12.4v is a GOOD resting voltage. I argued about it for a bit and got nowhere, so I gave up and left.

The battery was rated for 750 CCA, and it measured 734 CCA on their battery tester....

Any input outside of the battery would be greatly appreciated, thanks!

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  • 3 weeks later...
  • 2 weeks later...

Singer says one for my lexus should work perfect contact him

TEAM DC AUDIO

VEHICLE:98 chevy tahoe 2wd 3-4 drop

HEADUNIT:alpine 9886

PREAMP:arcaudio

FRONT STAGE:4-6 1/2s selinium,DD component set and 4-selinium tweeters in each door

KICKPANELS:jl audio 5 1/4

REAR DOORS: dd components 6 1/2s

HIGHS AMPS:zapco 750.2 on front doors,zapco an another 750.2 on kicks and rear doors

SUBS:4-ascendant audio 18s with 5 spiders in a custom box built by KINGSUV

SUB AMP: 2-dc7.5s

ALTERNATORS: 3-mechmans 1- 425comp, 1-smd spec350, 1-270 with adj voltage harness on custom dc bracket

WIRE:10-runs 0g front to back

BATTERIES:6-d1400s

TL results:157.1 at 38hz and 156.8 at headrest score @37hz. STATE AND NATIONAL RECORD IN MECA S5.

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TBH I'd say this is normal. Newer Toyotas/Lexuses charge really low. Not a bad thing though. It's easy on your batteries :)

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TY for the feedback SnowDrifter :)

I'm at the same time glad and NOT glad about the whole issue.

I'm not happy I'm dipping down to 12v when I'm about to put 1400w+ (CT Sounds at1400.1d).

I don't think my compressors like sitting at anything lower than 13.5v either :(. The worst part of all this is I don't have the funds at the moment (moving within the next month) NOR do I have room for a battery array Like in Mr Meade's car :(....

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The worst part of all this is I don't have the funds at the moment (moving within the next month) NOR do I have room for a battery array Like in Mr Meade's car :(....

Adding batteries wouldn't solve your problem anyway.

Edited by hdorre
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

:blush:

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

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