Joris Posted July 15, 2009 Share Posted July 15, 2009 Staman trading, a Dutch company has new Sherman tracks made, here is a movie of testing them: Something went wrong... More info: http://www.jeeparts.nl/shop/N_frame.html?http://www.jeeparts.nl/shop/ Quote Link to comment Share on other sites More sharing options...
Bodge Deep Posted July 15, 2009 Share Posted July 15, 2009 Yup I'd say they vere tested! VRT! Quote Link to comment Share on other sites More sharing options...
AndyFowler Posted July 15, 2009 Share Posted July 15, 2009 Top Blokes !:-D Quote Link to comment Share on other sites More sharing options...
ajmac Posted July 15, 2009 Share Posted July 15, 2009 Great movie.....but.... That M4A1 appears to have a V8, the exhaust is in the wrong place.... has the Radial been replaced with a Ford GAA V8 ?? Quote Link to comment Share on other sites More sharing options...
Richard Farrant Posted July 15, 2009 Share Posted July 15, 2009 Great movie.....but....That M4A1 appears to have a V8, the exhaust is in the wrong place.... has the Radial been replaced with a Ford GAA V8 ?? It sounds like GM 6-71 diesel twin pack :confused: Quote Link to comment Share on other sites More sharing options...
R Cubed Posted July 15, 2009 Share Posted July 15, 2009 About 5 mins in it seems to be licking along at a fair old rate of knots, what sort of speed would that be doing could not see the car speedo ? does seem fast though. Quote Link to comment Share on other sites More sharing options...
Stone Posted July 15, 2009 Share Posted July 15, 2009 Is it just faster because of the reduced weight of metal tracks, or is there less 'rolling' resistance too? Looks pretty quick! Seems to be doing 60 (I assume kph in Holland) so what, nearly 40mph? :shocked: Stone Quote Link to comment Share on other sites More sharing options...
mcspool Posted July 15, 2009 Share Posted July 15, 2009 It sounds like GM 6-71 diesel twin pack :confused: Indeed, this Sherman has been fitted with a the GM 6046, the twin power pack version of the 6-71. As this type of engine is still in production, the owner has fitted modern injectors, which give a better fuel burn and thus power. H. Quote Link to comment Share on other sites More sharing options...
radiomike7 Posted July 15, 2009 Share Posted July 15, 2009 Good choice of music from Freddie 'I am a man with a one track mind' :-D Quote Link to comment Share on other sites More sharing options...
abn deuce Posted July 16, 2009 Share Posted July 16, 2009 It seems he missed the stop sign at 6:56 . While the new tracks seem to handle the higher speeds permitted by both the lighter tacks and the bigger engines , what of all the bearings in the drive line road wheels and return rollers , how long could you drive a sherman at what spped before you would need to let it cool down or regrease things ? Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted July 16, 2009 Share Posted July 16, 2009 To get 38 mph out of a Sherman, you have to run the propshaft at over 4200 rpm..... I would be concerned at that speed. It's not just more power from the later injectors, he must be running higher revs. The 6046 engine pack does gear up the output speed compared to the crankshaft speed but even so! When the tanks were new, it was not recommended to run them at more than 20 mph for sustained periods because the roadwheel tyres were apt to fly off the rims! Looked impressive though! Quote Link to comment Share on other sites More sharing options...
Enigma Posted July 16, 2009 Share Posted July 16, 2009 It seems he missed the stop sign at 6:56 . QUOTE] No problem... Looks like it was filmed on a military base. They recreated roads and such for trainee drivers. Guess they had permission and empty roads for this. Quote Link to comment Share on other sites More sharing options...
abn deuce Posted July 16, 2009 Share Posted July 16, 2009 :tup:: You could be right , private roads or on base and all . just makes for a bad example / impression. Quote Link to comment Share on other sites More sharing options...
ajmac Posted July 16, 2009 Share Posted July 16, 2009 I'd dismissed the diesel option as I didn't see much smoke to speak of :-D Quote Link to comment Share on other sites More sharing options...
Jim Clark Posted July 16, 2009 Share Posted July 16, 2009 When the tanks were new, it was not recommended to run them at more than 20 mph for sustained periods because the roadwheel tyres were apt to fly off the rims! Very true this happened last weekend after a road run back from a local carnival. Jim. Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted July 16, 2009 Share Posted July 16, 2009 Bummer! They have done well though....:-D Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted July 16, 2009 Share Posted July 16, 2009 I'd dismissed the diesel option as I didn't see much smoke to speak of :-D In the interior shot, you can see the hand throttles and twin tachos of the M4A2 installation. The position of the exhaust fishtails is also a clue. Quote Link to comment Share on other sites More sharing options...
Adrian Barrell Posted July 16, 2009 Share Posted July 16, 2009 Jim, is my bow gun case catcher ready? Can I collect next week? Quote Link to comment Share on other sites More sharing options...
Jim Clark Posted July 16, 2009 Share Posted July 16, 2009 Bummer! They have done well though....:-D Well worth it though. Jim. Quote Link to comment Share on other sites More sharing options...
Jim Clark Posted July 16, 2009 Share Posted July 16, 2009 Jim, is my bow gun case catcher ready? Can I collect next week? do my best . jim. Quote Link to comment Share on other sites More sharing options...
abn deuce Posted July 17, 2009 Share Posted July 17, 2009 Jim How are the rest of the road wheels doing ? the one behind the one that failed looks to be about to fail its self as corrosion seems to be lifting the rubber. Quote Link to comment Share on other sites More sharing options...
Jim Clark Posted July 17, 2009 Share Posted July 17, 2009 Hi ABN, you are right the rubber is lifting and there are one or two more that are the same.When I restored the Sherman it was on a limited budget so I had to use wheels that were not in the best condition. Since June 2004 I have had three tyres come off but I have collected a stack of NOS tyres and spare wheels so I just run them until they need changing. The tracks are just about worn out now, I think after "Tanks in Town" I will have to replace them aswell. Jim. Quote Link to comment Share on other sites More sharing options...
abn deuce Posted July 17, 2009 Share Posted July 17, 2009 Understand completely , You do what you can when you can . Many of Us are in the same position tiring to enjoy our vehicles on limited budgets while looking for limited good used parts or the increasingly rare N.O.S. ones . Quote Link to comment Share on other sites More sharing options...
oily Posted July 18, 2009 Share Posted July 18, 2009 well I suppose that does seem quick....in a tank, ....I got clocked the other day doing 60mph!:cool2:...in my Saracen!:nono::cool2: Quote Link to comment Share on other sites More sharing options...
roy aalderson Posted August 2, 2009 Share Posted August 2, 2009 hello people this i am the owner of this sherman i have build the gm twinset into the sherman with modern injectors. the engine is turning 3000 rpm and i have never had problems with it he can make 70 km-h and the engines are running about 15 years in this sherman never had problems with them regards Quote Link to comment Share on other sites More sharing options...
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