I've seen King Cab diffs (same design) with the centers completely melted out of them due to the added stress of the larger tires.
The diff's small size and limited balls meant it was not overly tolerant to the heat from slippage. Without proper shims, the diff could slip. The Astute, using much the same style diff (different thrust bearing) just says it can be adjusted with more of less spacers. The Madcap calls out no shims for the "standard setting" (whatever that meant) and to add a a pair is necessary. Unfortunately, Tamiya was very vague about what adjustment did or meant for novices in their instructions. The downside was their was a limited range of adjustment. Tamiya, being Tamiya, chose to use varying amounts of shims installed on either side if the diff housing halves to provide adjustment vs the traditional adjusting screw. The benefit would be that the diff would never "loosen up" as there was no adjusting screw to back out/off. After a few previous attempts at center ball diffs in the Celica, Avante and Vanquish, Tamiya tried their hand at making a new-design ball diff in their new batch of cars, the Astute, Madcap and King Cab. Traditional ball diffs use an adjusting screw that goes through the center of the diff, adjusting clamp load on the inner balls and thus the "tightness" of differential action. Can someone elaborate to a Madcap newbie. I have read about the ball diff being a concern but don’t understand the problem. Quite a few people had them, and there's definitely nostalgia for them.įront tyres are also notably tricky to track down, so watch out for that. Currently somewhat undervalued on the collector market too, which makes them a steal even in NIB form. It's also a first-100 car, and one of the later buggies from what I would deem Tamiya's vintage years. Definitely one to collect in my book.
Madcaps were priced well and were pretty great at the entry level, for their time. Brushless folks will laugh at that, but everything is relative. Madcap looks great and by all accounts, goes great I remember driving one for the first time after some mid-80s buggies, and finding it spankingly fast in comparison. So if you happen to love it, then it doesn't really matter either way.
#Madcap forum pro
nice to know if it did! But the pro scene was a tiny minority of the population.
#Madcap forum professional
It's a bit like buying a particular model of vintage Tennis racquet for a hit down at the local courts, and wondering if it ever won tournaments in the hands of professional tennis players. At the end of the day, a car's relevance to racing is definitely part of the history. But as is often the case, it's a sort of trivia really.
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