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how to decrease engine revs at cruising speeds 

 

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 Post subject: how to decrease engine revs at cruising speeds
Posted: Mon Jun 10, 2024 6:13 pm 
Fordmods Newbie
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Age: 69

Posts: 4

Joined: 7th Sep 2021

Ride: 1984 XE SEDAN

Location: Shepparton
VIC, Australia

Hi all, I have a 1982 XE Sedan, I have converted it from a 4.1 auto to a 5.8 auto using the V8 engines original FMX box. The motor has been totally rebuilt with a stage one Cam and other goodies such as extractors. I had drums on the rear so to stop it better I found an XR6 rear end and installed that. On first road test I was disappointed as it was revving at 2850RPM at 100KMH. On investigation I found that the XR^ diff was 3.45 to one (I think), so I changed that to a 2.92 to one. A little better, now its 2500RPM at 100KMH. I am told that there is a 2.72 to one available for that model ( but I need to find a paddock of rocking horses to get one). Does anyone know of where I might get one or any other ideas how to reduce my cruising revs. I am not worried about economy, or I obviously wouldn't have put that motor in, nor do I want to be quick off the mark, it sound s brilliant and its just a cruiser foir me. Ant clues appreciated. Cheers sacko7
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 Post subject: Re: how to decrease engine revs at cruising speeds
Posted: Mon Jun 17, 2024 4:19 pm 
Oompa Loompa
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Age: 48

Posts: 46

Joined: 26th Sep 2017

Ride: El Falcon XR6

Location: Wyndham, Southland,
New Zealand

Larger diameter wheels will reduce your cruise RPM...
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