Steeda or thump racing? - Ford Mustang Forum
 
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post #1 of 15 (permalink) Old 09-28-2012 Thread Starter
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Steeda or thump racing?

Looking through all the hd belt tensioners . Steeda has a good price on theirs. Stock is a 76mm right? Stay with stock size? Any ideas on other good brands/ good price?

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post #2 of 15 (permalink) Old 09-28-2012
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All the Steeda is is a stock tensioner with a brace welded to it. If you aren't running FI, you don't need an aftermarket tensioner. The best ones I've heard of are the Thump, and the Roush tensioner.


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post #3 of 15 (permalink) Old 09-28-2012
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I was told you can't beat Thump. I still have my stock one and its holding up well so far but I do watch for any signs of a bend.

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post #4 of 15 (permalink) Old 09-28-2012
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I have the Thump Racing tensioner. It is a very nice piece. The stock tensioner pulley is 76mm.

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post #5 of 15 (permalink) Old 09-28-2012
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Are you running FI? Department of boost has a setup that takes two stock tensioners and melds them into one super tensioner.

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post #6 of 15 (permalink) Old 09-28-2012 Thread Starter
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I had issues last week with belt slipping (just installed sc) so i changed the kb idler pulley back to the larger stock one. It fix the issue but over the last few days i think it sounded like the belt slipped when i would rip on it. Wot. So started thinking about the tensioner

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post #7 of 15 (permalink) Old 09-28-2012 Thread Starter
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So im looking for something to put more tension not so much a better brace. I don't think the stock has bent

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post #8 of 15 (permalink) Old 09-29-2012
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Quote:
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So im looking for something to put more tension not so much a better brace. I don't think the stock has bent

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I was under the impression that the Thumper and Steeda tensioners donít have any more tension/spring pressure than the stock one. I may be wrong though. And the stock ones only have HALF the spring pressure that you ideally want according to the belt companies.

Gates (belt company) recommends 20in lbs/rib for best tension. That is their baseline for all belts and how they conduct all their testing. A 6 rib belt should have 120in lbs of belt tension (warm belt). I have a Gates belt tension gauge and have tested a fair number of setups. The only 6 rib stock setup with a blower in the system that has tested to Gates specifications is when using two stacked stock tensioners.

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post #9 of 15 (permalink) Old 09-29-2012
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Quote:
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I was under the impression that the Thumper and Steeda tensioners don’t have any more tension/spring pressure than the stock one. I may be wrong though. And the stock ones only have HALF the spring pressure that you ideally want according to the belt companies.

Gates (belt company) recommends 20in lbs/rib for best tension. That is their baseline for all belts and how they conduct all their testing. A 6 rib belt should have 120in lbs of belt tension (warm belt). I have a Gates belt tension gauge and have tested a fair number of setups. The only 6 rib stock setup with a blower in the system that has tested to Gates specifications is when using two stacked stock tensioners.
You may be right. I just remember some people talking about thumper using a denser spring. I don't have any sources though.

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post #10 of 15 (permalink) Old 09-30-2012 Thread Starter
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Is someone producing that dual stock you were talking about? Or do you just buy another stock and bolt on?

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post #11 of 15 (permalink) Old 09-30-2012 Thread Starter
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I took it out in the rain today ( my explorer is in pieces in my garage right now) and didn't get on it too much as i would get no traction anyway. So i didn't notice the belt slipping but when i parked it back in the garage it smelt like burning belt. Ummmmm

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Quote:
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I took it out in the rain today ( my explorer is in pieces in my garage right now) and didn't get on it too much as i would get no traction anyway. So i didn't notice the belt slipping but when i parked it back in the garage it smelt like burning belt. Ummmmm

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I am suprised if you have belt slip at less than 10 psi. If you are having belt issues I would suspect the tensioner or alignment. The stock tensioner WILL bend or even break its just a matter of time. This is well known and KB should ship a HD tensioner in each and every kit in my opinion. The Thump tensioner is much better quality double bearings and stronger that the less expensive Steeda, Roush, UPR, etc.

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post #13 of 15 (permalink) Old 09-30-2012 Thread Starter
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When i first did the install the belt would slip if i turned the ac on or just slammed the gas. So i took off one of the smaller kb idler pulleys (#5) and put the stock 76 back on. Now it seems good for the most part but still not right apparently. I thought alignment at first but it LOOKS like it is true in all the pulleys. How do i do a real alignment test? I would like to rule that out

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Quote:
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When i first did the install the belt would slip if i turned the ac on or just slammed the gas. So i took off one of the smaller kb idler pulleys (#5) and put the stock 76 back on. Now it seems good for the most part but still not right apparently. I thought alignment at first but it LOOKS like it is true in all the pulleys. How do i do a real alignment test? I would like to rule that out

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Gates or Dayco laser alignment tool! I am going through this alignment issue now. I ordered the Dayco laser.

07 GT vert, Satin Silver, 5spd, premium trim, interior upgrade pkg, comfort group, GT appearance package, cloth top

ADDED: 302 Stroker, KB 2.8 Mammoth @ 20psi, DOB belt drive, E85 fed, TR6060, ATI, Cervini hood, Meziere, Pypes Long Tubes, O/R X pipe, FRPP GTA mufflers, 20" Bullitts, Eibach Springs, BMR relo brackets/UCA/LCA`s, FRPP 4.10, etc, etc.
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post #15 of 15 (permalink) Old 09-30-2012 Thread Starter
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Ill look around for one Monday. Since the sc install i think I've spent more time getting it right than driving it but every time i hit the throttle its worth it

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