| Re: New Manny Tranny on hills [message #195318 is a reply to message #195317] |
Wed, 09 January 2013 20:20   |
JohnL455
Messages: 4447
Registered: October 2006
Location: Woodstock, IL
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I'm not Matt, but I would think it better to be up around 3000 in that high load condition. Less torque converter heat build, better coolant and oil flow. I just towed long distance with my Tahoe pulling a U haul autotransporter with an S15 $WD on it. Now granted the 455 is a lot torqueier than an SB 350, but even with 3.73's, in OD the engine is at 2k at 65MPH and making little grunt. I found it best to shift manually down to D at the start of each rolling hill, thereby skipping the lock / unlock cycle on the wimpy convert lockup clutch and requiring LESS throttle to make the grade. That put me at about 3K and I would then regain lost speed and the engine was happier.
John Lebetski
Woodstock, IL
77 Eleganza II
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