Belt tension question

[blwn89gt]

I’m getting ready to swap a 3.25” pulley on my car and I have a k080785 belt on it now. I attached a picture of the tensioner indicator. It’s been a while since I dealt with this and normally I had my dad to help me out ever since he passed away I’m out to figure stuff out on my own. If I put more tension on the belt the indicator moves more to the left which would be the middle of the mark. Should I get a shorter belt ? I don’t want to go tooooo tight but I don’t wanna slip it and my cars on a base tune and I haven’t put it under boost so I couldn’t tell you if it’s slipping now.

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[01yellercobra]

Ideally the mark should be in the middle. Right at the step between the low and high. From where you're at you'd want a longer belt.

IMO, run what you have. The belt will probably stretch a little.

 

[blwn89gt]

Ideally the mark should be in the middle. Right at the step between the low and high. From where you're at you'd want a longer belt.

IMO, run what you have. The belt will probably stretch a little.

That’s an older belt, I was gonna swap it out with a regular gates belt from our convo lol


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[01yellercobra]

Oh. Then yeah, slightly longer belt wouldn't hurt things. But you don't want to go much longer. Maybe whatever the next step is from your current belt.

 

[blwn89gt]

New pulley is on and the existing belt I have it dead nuts where the tensioner should be. I’m gonna order up a new regular belt and just swap it with the alternator. Also swapped out the old Allen socket bolts for some stainless ARP bolts I had.

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[CobraVenom01]

The Griptec pulley is so awesome. I just swapped my whipple 3.00 to the Griptec 3.00. Car holds right at 25lbs till redline.

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[stangfreak]

griptec is the best. That is what I have on my whipple.

 

[blwn89gt]

I figured with the addition of cams and the Kooks LTs I’d go with a 3.25” pulley instead of leaving the 3.50” on it. I got a killer deal on the pulley from a forum member so I couldn’t pass it up.


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