Dancing tach when the bass hits. - Suzuki Forums: Suzuki Forum Site
Suzuki Forum Suzuki Forums

» Auto Insurance
» Featured Product
Wheel & Tire Center

Go Back   Suzuki Forums: Suzuki Forum Site > Technical > General Car Audio, Video and Electronics
Register Home Forum Active Topics Photo Gallery Garage Search Today's Posts Mark Forums Read Auto EscrowAuto LoansInsurance Advertise

Suzuki-Forums.com is the premier Suzuki All Forum on the internet. Registered Users do not see the above ads.
LinkBack Thread Tools Display Modes
Old 02-21-2008, 08:53 AM   #1 (permalink)
federic0's Avatar
Join Date: Jan 2008
Posts: 15
Gallery: 4
federic0 is on a distinguished road
Default Dancing tach when the bass hits.

Hey All...

Here are the facts: I have an '06 Reno, Pioneer 250W RMS (800 max) amp pushing a Pioneer 10" that can handle 250W RMS. It's wired with a 1400W kit (5ga), and I have a swap-meet power cap that says it's rated at 1.5 farad (but I doubt it actually is). Most of the time, everything is completely stable; my amp never cuts out or clips during normal use. However, when I play a song with heavy bass and have the volume & bass turned up, my tachometer dances a bit when I'm at idle (sitting at a red light). My car usually idles at around 900rpm, the most extreme fluctuations I've seen will take it down to around 700rpm. None of my other gauges move with the bass.

If anyone is familiar with this issue, I have a couple questions:
- Is the movement in my tach caused by an actual reduction in engine rpms, or is it just caused by excess electrical draw messing with the gauge's readout?
- If my system is actually reducing my engine's rpms, can that damage anything?
- What is the best way to eliminate this problem?

Thanks in advance for your help!
federic0 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Old 02-24-2008, 08:32 PM   #2 (permalink)
Dj Low Proz's Avatar
Join Date: Nov 2007
Location: Herndon,Virginia
Posts: 418
Gallery: 30
Dj Low Proz is on a distinguished road

i have that same problem some times in my 07 reno but im using the kicker zx1000.1 and a kicker 15inch cvx wired at 2ohms, the amp pushes 1000watts rms at 2ohms i have no cap but is used zero gauge wires the gain on the amp is only 1/4 of the way.
What I done so far
Pioneer Avic-D3, Fronts Kicker Ks Components 602, Rears Kicker Ks Components 502, Eclipse EA4200 4 Channel Amp, Bass Kicker Cvx 15"(SPL) and RE Audio Sx 10" (Daily Driver), Kicker Zx1000.1, Kicker 0/1 gauge amp kit with RCAs, DDM Tuning 4500k Hids, Hid Tag Lights, NGK plugs and Wire Set, BMS CAI In Black, The Big 3 Upgrade in 4gauge wire


Dj Low Proz is offline   Reply With Quote Quick reply to this message
Old 04-11-2008, 12:28 PM   #3 (permalink)
steven.buschie's Avatar
Join Date: Mar 2008
Posts: 49
Gallery: 0
steven.buschie is on a distinguished road
Default Check your ground

Make sure the amp and cap ground are good grounds, you may be having an electrical surge, when heavy bass hits. Find a bolt that goes into the frame, my Forenza has one in the trunk, I am not familiar with the Reno, but if you can find a bolt that goes through the body into the frame, sand the paint down to the bare metal and use that as a ground. Try this and PM me if you need any more help. Also make sure the amp and cap ground are the same place.

Sub Amp 2 JL HD750/1
Mids and Highs Amp JL HD600/4
Front Speakers Infinity 6020CS
Rear Speakers Infinity 6020CS
Subs 2 JL 10W7
Deck Kenwood KDC-X792

Car Audio Installer

steven.buschie is offline   Reply With Quote Quick reply to this message
Sponsored Links

  Suzuki Forums: Suzuki Forum Site > Technical > General Car Audio, Video and Electronics

Quick Reply

Register Now

In order to be able to post messages on the Suzuki Forums: Suzuki Forum Site forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:
Please select your insurance company (Optional)


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 03:35 PM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus vBulletin Plugins by Drive Thru Online, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.