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Possible Idea to Increase Belt Wrap


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Plain and simple, when I shift fast, my serpentine belt slips. It was perfectly fine with the OEM alt and that belt. Obviously my Singer has an overdrive pulley, which is smaller. As a result, less of the pulley is covered by the belt. I want to fix that, and here's what I thought of...

Basically, here's the alternator in its bracket:

alternator1.jpg

Id only like to focus to the pic on the left.

Here's my belt routing:

ac-compr-drivebelt-manual.gif

I have A/C.

Bascially, four bolts connect my alternator bracket to the engine. You can see those 4 point in the first two pictures.

On the first picture that shows the alt's pulley, Id like to add an idler pulley on the lower of the two mounting bolts in order to increase belt wrap.

My confusion is with the OEM idler pulley. It'll have less belt wrap if I add a secondary pulley. Would this be a problem? Would it squeal?

Edit:

Or would you just replace the oem idler with a larger one?

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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Or would you just replace the oem idler with a larger one?

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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Shift slower

THERE IS NO BUILD LOG!

1998 Chevy Silverado ext cab

Alpine CDA-9887

4 Team Fi 15s

2 Ampere Audio TFE 8.0

2 Ampere Audio 150.4

3 Digital Designs CS6.5 component sets

Dual Mechman 370XP Elite alternators inbound!

8 XS Power d3400

6 XS power d680

Second Skin

Stinger

Tsunami Wiring

Sky High

A Real Voltmeter not a piece of shit stinger.

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You should be able to add a smooth backside idler pulley to INCREASE the belt wrap on the alternator pulley. That will help the overall performance of the alternator, but you will probably still get a "chirp" from the belt on high RPM gear changes. A larger alternator pulley and/or decoupler pulley would be the only way to fix that, but it would kill the idle output of the Singer alternator.

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