Also, we know that the Spirit already has a very short drvieshaft, I don't know if making it even shorted would affect anything or if there is some kind of limit into shortening it. But, this would require several adaptations such as pushing back the transmission crossmember, shortening out the driveshaft and then rebalancing it, cutting-off a new shifter lever hollow on the transmission tunnel due to different position of it (and no Hurst linkage here).Īll this seems to be also relatively expensive to achieve aside from the whole ordeal of adapting it. I considered swapping the 176-F transmission in favor a Jeep unit used behind the 4.0 engine (models: T5, AX-5 or AX-15). I thought about swapping the original 3.31:1 rear gear ratio in favor of a 3.07:1 used in other VAM cars, but I would lose towing capacity and standstill acceleration. I am really looking forward to both better highway fuel economy and higher speed with my car. I know it was used in the 150-T model three-speed manual in the US. The legal speed limit in Mexico for straight highways is 100-110 kilometers and hour (62.5 and 68 miles per hour).Ĭan a Laycock de Normanville OverDrive unit be adapted/used in the 176-F transmission? Going uphill the speed drops to 80 kilometers an hour and going downhill it rises up to 100 kilometers an hour.
However, the problem I have is that at this point the speed I obtain is 90 kilometers an hour (56 miles por hour) in straight ground. Also, if I can make it to my destination in less time that would be great. This is done with the point of keeping the highest efficiency in my engine, keeping stable not just the temperature but also the fuel consumption. In highway driving, I try to keep my vacuumeter between 10 and 15 and my tachometer at 2000-2200 RPMs. It is coupled to a TREMEC 176-F four-speed manual transmission with Hurst linkage and a Spicer axle with 3.31:1 rear gear ratio.
I have a 1981 VAM Rally GT (Spirit GT) with a 282 cubic inches inline six cylinder. How effective/reliable it is in terms of fue economy or even performance applications? It was used only with column-mounted three speed manual transmissions. Does anyone have any knowledge and/or experiencie with this accessory? I know it was avialable as optional equipment in 1975-1976 Hornets, Gremlins and Pacers as a fuel economy measure.
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