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#1
26-07-2010
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Pumilio Design gear differential for TRF501/511 and DB01/DB01R
Just installed my gear diffs on my TRF501. The diffs are manufactured by Pumilio Design. I have not yet driven them, but they feel very smooth, hopefully they will perform too
 On the down-side, at least on my car (TRF501) the front upper deck needed some cutting for the diff to fit, but at least on my opinion, it is not that big of an issue.Pic.  The price is 120 eur for one diff, which equals to slightly more than a new ball diff made with ceramic bearings and balls. 
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#2
26-07-2010
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How much were they Mof? and who do i speak to about ordering some?
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Southport P.R.O. / Photographer of semi-naked girls www.srcc.co.uk - www.craigmagee.co.uk
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#5
26-07-2010
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Also interested in where to buy
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#9
27-07-2010
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some details on price and where to order them from would be nice.
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#10
27-07-2010
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look nice!
__________________
Tamiya ~ Mugen Seiki ~ Viper RC ~ Pro-Line ~ Xpert Servos ~ BEAT ~ Protek RC ~ Amain Hobbies ~ LMR ~ Ultimate Racing ~ Nitrolux ~ Nibbo Designs ~ Stickit1 Racing ~ The World Famous TFR! 
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#15
27-07-2010
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120 euro?
surely that is a mistype. a set of gear diffs is going to cost 1.3 times more than a db01r?
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#16
27-07-2010
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Quote:
I am not the one who makes them, but there are a few factors to this. Firstly, the need to buy the gears, pulleys, oudrives etc for the diffs. Then a quite a bit of custom machining (outdrives and pulleys need custom machining), then there is the whole diff case that needs to be manufactured and so on. And the production rates are low, it is not a mass product. If you go and buy all the necessary stuff to make a ball diff with ceramic bearings and balls and TRF501/511 outdrives, it will be quite expensive too (the prices are rounded values): Outdrives, 23 eur Ceramic balls, 10 eur Ceramic thrust bearing, 10 eur Ceramic bearings, 10 eur Screw and nut, 10 eur Pulley, 4 eur Diff plates, 4 eur The cost comes to around 70 eur for one. So yes, the gear diffs are more expensive. But they are also a different product compared to the mass produced parts that you use for the standard diffs. And I think it is not right, or fair, to compare the price of an entry level model like the DB01R (which by the way costs around 300 eur in Finland with no tires, wing or body, so in reality around 370 eur with the necessary stuff... taxes, gotta love 'em...) in Hong Kong etc to something custom made, like these diffs. PS. If you look at the price of mass produced carbon or alloy parts for TRF501/511, you also see a trend of not-as-cheap-as-db01r-would-have-been Rear front or rear lower bulkheads. 30 eur. Each (so 120 eur total for the car). 60 eur for the chassis (one piece of carbon fibre), oneway 45 eur, alloy hubs 40 eur / pair and so on, even the body is 45 eur. The diffs don't seem as pricey as if you compare them to the plastic parts of the db01 as if you compare them to the price of the parts for the TRF models...
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#18
27-07-2010
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No maintenance whatsoever once the right oil is found. If its manufactured (and build) correctly...
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#19
27-07-2010
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I find it very hard that there is hardly any maintenance with gear diffs. Just ask any durango owner, even the spec r owners. Tell me a gear diff that doesnt leak!
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Tamiya
But I've heard good things on them from some other drivers.
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