Best Pulleys for the 03 Cobra

velazsc · 05-09-2005, 05:48 AM

Which is better to do? Just get the smaller pulley with idlers for the eaton or like on RMP Outlet's website, they sell a full Zero Slip Cog Belt Blower Pulley System? As far as the pulleys, are quick change ones as reliable as the solid pulleys?

birch · 05-11-2005, 06:15 PM

I would advise against RPM Outlet for the pullies/idlers.

Look at billetflow.com

Quick change ones (with the rings) are just as good.

AllVenom · 05-25-2005, 02:37 AM

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RPM sux for pullies. The cheapest way(and easiest for that matter) is to change out your upper. I would suggest a 2.93, but some put in 2.80. IMO, the 2.8 is overspinning the Eaton for no noticeable gain in power (maybe 10 horsies) over the 2.93. But overspinning = heat soak = loss of power. It is more efficient to change to a 4 or 6lb lower, but then you have to change the alternator pulley as well so your not overspinning that. In any case, you will need a decent tune to make any real power gains.