| 1970 Tiara with Toronado FWD Question about power train [message #344706] |
Mon, 01 July 2019 00:15  |
Rick Daley
Messages: 4
Registered: June 2019
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I have a 1970 Ultravan Tiara. It uses the same Toronado drive train that the GMC motorhomes use. My mechanic tells me the engine is in good shape. The low cylinder shows 145 and the high cylinder shows 154 in a recent compression check. My rig weighs 8,000 lbs which is heavy for a Tiara. They were delivered at 6,500 lbs.
I understand the 23 foot GMC motor home weighs 10,000 lbs and the 26 footer 12,000 lbs give or take a few lbs.
I recently crawled over the Cascades on Washington Hwy 20 east and was routinely down to 20 mph with the vacuum gauge in the deep red. If my rig weighed 12,000 lbs I am pretty sure I would still be on the other side of the Cascades.
Can anyone give me some recommendations or some threads to pull on improving my rigs climbing performance? (I don't have a problem doing 70 on the flat but usually keep it at 65 or below).
Regards,
Rick Daley
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