what size belt when you take out the smog?
- Thread starter jake_1977_77
- Start date
CobraStang95
Founding Member
Just wrap a string around where the belt would be (make sure the tensioner is down) and measure the string, probably be around 30 inches or so. Tell an auto parts store how long a belt you need and how many grooves they should be able to take care of ya.
montegoman351
Member
- Jan 12, 2007
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Pretty sure it's a 75-75.5" belt, I used a 76" on my boss's car, and it worked, untill the belt started to stretch. The tensioner got a little close to the WP. I'd get both, and see which one suits your needs the best.
montegoman351
Member
- Jan 12, 2007
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I would've thought the 84.5" would be the stock size. I remember now, one of the guys at work told me it takes a 77", so we got a 76, 77, and a 78", and we ended up using the 76" belt. It was a '89 GT 5.0 HO, power everything.
montegoman351
Member
- Jan 12, 2007
- 169
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True, I just figured with it being an LX, it had it and he didn't mention anything about the A/C.
bloopbloob
Member
anyone know a length for bypassing the smog and a FRPP a/c delete (moves p/s pump up) and UD Pullies? I know the string trick, but i'll be doing it 1h from the nearest part store.... Even a ballpark # would help so i can grab a few belts before i do this
GT_Rich
Member
Bloopbloob - I have no smog and FRPP a/c delete (but not U/D pullies) and I used a 73.5" belt. Hope that helps.
bloopbloob
Member
perfect! thanks! I'll probably try 72.5 73 and 73.5 to start then. Shouldn't be too much difference i dont think?
GT_Rich
Member
Since I've never had U/D pullies, this could be way off, but I would think that to spin a shaft less (under drive it) you would need a larger diameter pulley. This means I would start with 73.5 and work my way up if I were you.
bloopbloob
Member
hmmm i always thought UD's were smaller but now that i actually think about it you might be right! but i thought a smaller diameter pulley would spin the shaft slower? can someone clear this up? maybe it's just my stupidity but i'd like to know before i do the work!
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