Blown
Elite Explorer
- Joined
- December 6, 2007
- Messages
- 1,163
- Reaction score
- 911
- City, State
- Montrose, CO
- Year, Model & Trim Level
- 2000 X-Edge
Sorry to hear what is sounding like excuses, no facts. It may be that the new impeller just applies too much force for the belt? It may have been a bad belt, not formed right, at the right heat, old, or cut wrong? I hope it was a bad belt. He says it was new, but I have seen some old stuff sold as new. Without a date of manufacture, you do not know, and rubber degrades over time.
You have done the math and are not over-revving it. I did want to mention that I have backed-off my shift point to second. We are pushing the exhaust on these to the max at higher rpms. We are likely hitting significant exhaust restrictions by shifting later vs catching second sooner at lower rpm. I think it is a little faster.
I never had an issue with the Powerdyne unit I bought new in a kit for a Bronco 302. It was on the 302 and then 349 Stroker. I ran it up to 9lbs without issue with the stock truck/bronco302 cam, 5/8" headers and big heads.
Good Luck!, hope this belt holds!
You have done the math and are not over-revving it. I did want to mention that I have backed-off my shift point to second. We are pushing the exhaust on these to the max at higher rpms. We are likely hitting significant exhaust restrictions by shifting later vs catching second sooner at lower rpm. I think it is a little faster.
I never had an issue with the Powerdyne unit I bought new in a kit for a Bronco 302. It was on the 302 and then 349 Stroker. I ran it up to 9lbs without issue with the stock truck/bronco302 cam, 5/8" headers and big heads.
Good Luck!, hope this belt holds!