Join Date: Mar 2000
Location: Colorado Springs, CO USA
Feedback Score: 0 reviews
I'll give you my most recent experience. I've only had my EBPV-based brake this year, so I'm not an expert, but have already towed over Monarch, Vail, and Eisenhower Passes both directions grossing around 18k. It's very effective and takes the worry out of steep downhill braking.
I've found my EB to be effective under 2000 RPM, just not AS effective as over 2000 RPM. I use it in 3rd and 2nd gears as appropriate to control RPM and downhill road speed but found that I could stay in 3rd down Vail and Eisenhower Passes using the EB.
I have a trans temp gage and have yet to observe it hotter than 150-160 deg. while using the EB. I have a manual TC lockup switch and pretty much only use the EB with the TC locked. Like Mark said, it is effective without TC lockup; I just don't use it that way. As for overall effect on transmission life, I don't know much about that. Mine is doing fine.
I've observed that the EGT hovers around 400 deg or slightly above because work is being performed upstream of the EB. No worries, here. This is after several miles of steep downhill on the big mountains passes mentioned above.
Former Ford sensor engineer, 1991-1999
2000 F-350 CC Lariat PSD 4x4, AIS, AIC, BTM, Isspro EV2 gages, manual TC lockup, manual EBPV control, GPR LED monitor, DP-Tuner F6 with Drive-Thru, 60tow, Decel, 60econo, 80econo, 168k miles
1975 FJ-40 Land Cruiser, 350TBI, Muncie 465 trans, ARBs, York on-board air, 4-link rear suspension, Blazer tilt column, Mazda sport buckets, full roll cage, towed on 18' Big Tex trailer
1975 Denver Broncos Special Edition Ford Bronco