OS SPEED B2102
#166
Tech Lord
iTrader: (148)
I like the dubro nitro line. Sticks well and holds up nicely. Also comes in many colors, I have tried many colors and the light blue is the best IMO.
Also I checked my carb and its almost exactly what Drake posted, within 1 hour or so. I'm also in CA, but when we went to TX to the lone star challenge at Thornhill the needles only moved 1 hr. So I think the range Drake suggests is good just about anywhere. If you are having issues my guess would be the idle gap.
Also I checked my carb and its almost exactly what Drake posted, within 1 hour or so. I'm also in CA, but when we went to TX to the lone star challenge at Thornhill the needles only moved 1 hr. So I think the range Drake suggests is good just about anywhere. If you are having issues my guess would be the idle gap.
#167
Tech Champion
iTrader: (32)
I like the dubro nitro line. Sticks well and holds up nicely. Also comes in many colors, I have tried many colors and the light blue is the best IMO.
Also I checked my carb and its almost exactly what Drake posted, within 1 hour or so. I'm also in CA, but when we went to TX to the lone star challenge at Thornhill the needles only moved 1 hr. So I think the range Drake suggests is good just about anywhere. If you are having issues my guess would be the idle gap.
Also I checked my carb and its almost exactly what Drake posted, within 1 hour or so. I'm also in CA, but when we went to TX to the lone star challenge at Thornhill the needles only moved 1 hr. So I think the range Drake suggests is good just about anywhere. If you are having issues my guess would be the idle gap.
#169
Tech Rookie
Also I checked my carb and its almost exactly what Drake posted, within 1 hour or so. I'm also in CA, but when we went to TX to the lone star challenge at Thornhill the needles only moved 1 hr. So I think the range Drake suggests is good just about anywhere. If you are having issues my guess would be the idle gap.[/QUOTE]
Frank, what temps are you getting with these settings?
Frank, what temps are you getting with these settings?
#172
Tech Fanatic
iTrader: (13)
Looks like the LRP branded B2102 is 50 bucks less, if anyone is interested.
https://www.amainhobbies.com/lrp-zz....p32123/p637439
https://www.amainhobbies.com/lrp-zz....p32123/p637439
#174
I usually run a 6.5mm or 7mm venturi in the O.S. Speed B2102 engine.
#175
#176
#177
Tech Rookie
Does anyone have a good needle setting? I don't onw a caliper sorry. Thanks.
#178
Tech Fanatic
iTrader: (6)
Home Depot or your favorite tool shop has digital calipers for $15-$30.
I find it to be a priceless tool not only for needle settings, but for droop measurement, linkages, shock lengths, measuring out screws and shims... don't know if I could wrench on a car without it.
#179
Ran my 2102 for the first race this weekend at the brca national race series.
Running in was very easy, 4 tanks on the box heat cycling & 6 more on the ground progressively getting up to full throttle.
Set up
OS 2090 pipe
JVD ally 4 shoe clutch
7mm Venturi
Carb setting top end as per Adam drake instruction
Bottom end at least half a turn richer than Adam drake as it wouldn't settle down to idle properly & was lean bogging, after I richened it the engine ran perfect.
Ambient temperature was around 80 degrees Fahrenheit. Qualifying runs were 1.30 warm up & 5 mins & 1 min at the end so generally 7.30-8 mins on the track.
Engine was coming off around 253f with 1/4 to 1/3rd fuel left, really happy with this as the engine has only done 1/2 gallon.
When the engine came back from the run it settled down to idle really quickly & sat at idle comfortably.
Final was 20 mins long & I did just 1 fuel pit stop, during fuelling all good and again settled down during fuelling. Good trail of smoke all the way through power.
The engine had so much useable power bottom to top, top end really sings & is crisp on the bottom end.
I came off the final with roughly 1/8th of a tank of fuel left!
Running in was very easy, 4 tanks on the box heat cycling & 6 more on the ground progressively getting up to full throttle.
Set up
OS 2090 pipe
JVD ally 4 shoe clutch
7mm Venturi
Carb setting top end as per Adam drake instruction
Bottom end at least half a turn richer than Adam drake as it wouldn't settle down to idle properly & was lean bogging, after I richened it the engine ran perfect.
Ambient temperature was around 80 degrees Fahrenheit. Qualifying runs were 1.30 warm up & 5 mins & 1 min at the end so generally 7.30-8 mins on the track.
Engine was coming off around 253f with 1/4 to 1/3rd fuel left, really happy with this as the engine has only done 1/2 gallon.
When the engine came back from the run it settled down to idle really quickly & sat at idle comfortably.
Final was 20 mins long & I did just 1 fuel pit stop, during fuelling all good and again settled down during fuelling. Good trail of smoke all the way through power.
The engine had so much useable power bottom to top, top end really sings & is crisp on the bottom end.
I came off the final with roughly 1/8th of a tank of fuel left!