Belt size when eliminating smog pump & a/c
- Thread starter b1gp1mp1n247
- Start date
CobraWannabe
Member
Its not the best answer, but parts stores usually dont mind letting you fit them til you find the one you need.
stang22
Active Member
With pullies, I think I am using an 83.5. But like CobraWannabe said, they will let you try the belt out for fitment. I had to try 3 different ones before I was satisfied. Hope this helps.
Tim
Tim
bighoss88lx
Founding Member
Black331Stang
Active Member
FMS A/C delete and removed smog pump (NOT A ILDER PULLEY, JUST BYPASSED) i beleive i was at 73.0" and it fit perfect. NO UNDERDRIVES.
Dont go by our measurements. I took my friends old belt (same setup) and it was like 2 inches too big . Get yourself a rope and route it around the pullies and then measure it. then go buy that size in a 6 rib belt. dont route the rope below the tensioner just like ignore it if it wasnt there, that will get u the size after the tensioner sits on teh belt.
Dont go by our measurements. I took my friends old belt (same setup) and it was like 2 inches too big . Get yourself a rope and route it around the pullies and then measure it. then go buy that size in a 6 rib belt. dont route the rope below the tensioner just like ignore it if it wasnt there, that will get u the size after the tensioner sits on teh belt.
CobraWannabe
Member
I got mine today, and I can feel a nice difference. I only bypassed the smog pump, cus when I tried bypassing both, I couldn't find a belt wityh enough slack to get around all the pullies with out having too much slack after the tensioner was on it. But the A/C isn't THAT much of a draw anyway.
I'm using a 80 1/2" belt skipping the removed AC and smog pump. Problem is the belt eventually gets loose and slips off the tensioner pulley (cant seem to fit a new 80" belt on). Broke a power steering pump because of it when it got strangled by the runaway belt. Also stalled and couldn't restart my car on a busy highway once when the belt came off and the battery went dead in about 30 seconds (skip underdrive alternator pullies at all costs). I'm now looking for a tensioner pulley with a retainer lip that doesn't cost $80!! Be very careful with this mod is my advice.
TenorPlayinGuy
Founding Member
ive got one from Kragen autoparts for only $18 and its working great... i can get you the part number if you'd likewildyellow said:
TenorPlayinGuy
Founding Member
http://www.partsamerica.com/PartDet...=DAY&MfrPartNumber=89003&PartType=806&PTSet=A heres a link for that part... i know it looks like the idler pully but its actually for the tensioner... i have one on my 5.0 and its so much nicer knowing the belt isnt gonna fly off in the middle of traffic...
TenorPlayinGuy
Founding Member
hmm links not working for me... anyone getting it to work? doh well the part number is DAYCO 89003 for that
Black331Stang
Active Member
nevber heard of a blet flying off 
Just measure it, theres no way around it, or no better way.
O and u cant just Remove the AC and get a belt, it wont work. Well unless u also ditch the Power steering. Only way to do it is get teh FMS delete (recommended -- looks nice and original) or get the march kit or something which gives u an ugly idler pulley.
Just measure it, theres no way around it, or no better way.
O and u cant just Remove the AC and get a belt, it wont work. Well unless u also ditch the Power steering. Only way to do it is get teh FMS delete (recommended -- looks nice and original) or get the march kit or something which gives u an ugly idler pulley.
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