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Old 06-25-2009, 11:36 PM   #16
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as what jamminkrazy pointed out; the only time the piston could reach the top of the sleeve is due to a stretched rod, not a loose sleeve...

no offence...

It makes perfect sense now, thanks for jumping on the bandwagon

The first Nitro engine I owned was the TRX 2.5 (quite a few years back) After a few gallons when It wouldnt start anymore, I took it to my LHS..The guy took off the cooling head and did the test I described and said, you lost compression, send it in for a replacement..That was the way I tested compression for almost 10 years now..with cheep RTR engines for 9 years every time that happened I would just buy a new engine..It wasn't until last october that I bought a real racing engine, and now thanks to you fine gentlemen I know how to check for compression..
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Old 06-25-2009, 11:41 PM   #17
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It makes perfect sense now, thanks for jumping on the bandwagon

The first Nitro engine I owned was the TRX 2.5 (quite a few years back) After a few gallons when It wouldnt start anymore, I took it to my LHS..The guy took off the cooling head and did the test I described and said, you lost compression, send it in for a replacement..That was the way I tested compression for almost 10 years now..with cheep RTR engines for 9 years every time that happened I would just buy a new engine..It wasn't until last october that I bought a real racing engine, and now thanks to you fine gentlemen I know how to check for compression..
but james, you have a vspec, it will most likey will fail the flop test
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Old 06-26-2009, 04:54 AM   #18
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mine definitley fails the flop test (vspec) but still runs great and holds a tune.


I think the flop test is a poor way to tell. If i get to where i can't tune my engine, it wont idle or it flames out repeatedly would be a better way to tell. If it starts doing that i might take the engine apart and check the P/S.


Jazz got my losi re11 yesterday. Going to the track today to test it out.
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Old 06-26-2009, 08:57 AM   #19
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Jazz got my losi re11 yesterday. Going to the track today to test it out.
You will surely be pleased with the Pipe Dreaux..next thing you need is a 6.5 MM restrictor for your carb..That will give your severely longer run times and help settle your power delivery so your not all over the place..any restictor (venturi) made for Novarossi, OS, or RB engines will fit the V-spec
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Old 06-26-2009, 09:13 AM   #20
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Jaz, on a Novarossi 421 w/ JP-2 which size restrictor would you say is best? 30% Nitro
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Old 06-26-2009, 09:27 AM   #21
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You will surely be pleased with the Pipe Dreaux..next thing you need is a 6.5 MM restrictor for your carb..That will give your severely longer run times and help settle your power delivery so your not all over the place..any restictor (venturi) made for Novarossi, OS, or RB engines will fit the V-spec
engine comes with 8 and 9 mm restrictor. I have been using the 9 so i should at least use the 8 for now right?
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Old 06-26-2009, 10:52 AM   #22
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You will surely be pleased with the Pipe Dreaux..next thing you need is a 6.5 MM restrictor for your carb..That will give your severely longer run times and help settle your power delivery so your not all over the place..any restictor (venturi) made for Novarossi, OS, or RB engines will fit the V-spec
grp works fine as well
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