YOKOMO Touring Car BD-7
#6331
The Yokomo BD series have always had 40/20 gears as far as remember. Interesting that they changed it for 2016. Looks like a good car.
#6333
When did it change? The first BD7 (2014) had 41 tooth diff crowns. Did it change when the new diff came out? That's probably the smallest diff tooth count on the market right now (and seems pretty small at that).
Personally I prefer an irrational internal ratio otherwise you'll have the same tooth and the same belt tooth running in all the time. Something like 19/37. Even these have at some point a common multiple, but in my opinion it's better for longer lasting drive trains.
Personally I prefer an irrational internal ratio otherwise you'll have the same tooth and the same belt tooth running in all the time. Something like 19/37. Even these have at some point a common multiple, but in my opinion it's better for longer lasting drive trains.
#6334
Tech Adept
Are you sure it's tightness and not some bonding solution? You might be able to use acetone and let it sit for a while to make sure the bonding agent is dissolved. Or if you want to avoid losing the colour, you can try freeze and release, it's liquid nitrogen in a can. Spray the bearing and it should drop out.
#6335
Tech Adept
which BD7 to choose
hi,
I`m offroad guy who is going to try my luck at touring cars during the winter
I wish to get used BD7...as Yoko parts are easy to get, but could somebody tell me if its remarkable difference how BD7, BD7-14 Blue and BD7-14 Black editions performs on high grip carpet tracks?
Wish to start with used car- with limited budget for the test car, but if its remarkable difference between those above, then I will try to get best from those.
Any advise is welcome
and if somebody from Europe sell their BD7 I`m waiting your offers at pm.
I`m offroad guy who is going to try my luck at touring cars during the winter
I wish to get used BD7...as Yoko parts are easy to get, but could somebody tell me if its remarkable difference how BD7, BD7-14 Blue and BD7-14 Black editions performs on high grip carpet tracks?
Wish to start with used car- with limited budget for the test car, but if its remarkable difference between those above, then I will try to get best from those.
Any advise is welcome
and if somebody from Europe sell their BD7 I`m waiting your offers at pm.
#6336
Tech Champion
iTrader: (34)
hi,
I`m offroad guy who is going to try my luck at touring cars during the winter
I wish to get used BD7...as Yoko parts are easy to get, but could somebody tell me if its remarkable difference how BD7, BD7-14 Blue and BD7-14 Black editions performs on high grip carpet tracks?
Wish to start with used car- with limited budget for the test car, but if its remarkable difference between those above, then I will try to get best from those.
Any advise is welcome
and if somebody from Europe sell their BD7 I`m waiting your offers at pm.
I`m offroad guy who is going to try my luck at touring cars during the winter
I wish to get used BD7...as Yoko parts are easy to get, but could somebody tell me if its remarkable difference how BD7, BD7-14 Blue and BD7-14 Black editions performs on high grip carpet tracks?
Wish to start with used car- with limited budget for the test car, but if its remarkable difference between those above, then I will try to get best from those.
Any advise is welcome
and if somebody from Europe sell their BD7 I`m waiting your offers at pm.
BD7-14 Blue and BD7-14 Black edition; these are the same aside from color
With aluminum chassis is great on carpet, 15, 16 should be even better, but 14 is a weapon anyway
#6337
Tech Adept
So I`ll search for BD7-14.
Any offers from Europe are wellcome
#6338
#6339
Smaller than a 34 pulley? What are those brands?
#6340
With heat, you might also try a heat gun, that should be a quick one, but again, I am not sure if the colour would be affected or not.
#6341
#6342
They are replaceable but rather hard to remove original ones especially if you do not have a press. They fit tightly! New ones will slip in no problem once you remove the original ones. I had to heat mine to get it off. Be aware once you heat you will loose the blue ionisation colour - it will turn silver! Good luck.
P.S. I changed bearings on mine as I needed a quick repair, but ordered the new steering parts and had them replaced anyway. its up to you though.
P.S. I changed bearings on mine as I needed a quick repair, but ordered the new steering parts and had them replaced anyway. its up to you though.
#6343
Tech Elite
iTrader: (8)
Hello! I'm seeking some advice on gear differential oil for high traction (Yatabe Area) with a 13.5 boosted motor.
My current setup is 10k for my low-medium grip track. However, I am a little skeptical that the differential oil might be too hard for high traction surfaces. Where should one start? I have three gear differentials to test.
What oil range should I test within?
3k
5k
7k
Or do you think 10k will be fine?
Let me hear your thoughts and suggestions.
My current setup is 10k for my low-medium grip track. However, I am a little skeptical that the differential oil might be too hard for high traction surfaces. Where should one start? I have three gear differentials to test.
What oil range should I test within?
3k
5k
7k
Or do you think 10k will be fine?
Let me hear your thoughts and suggestions.
#6344
7k 1.2grams.
The volume of oil is just as important as the viscosity. 10k is too thick for most carpet tracks like those with many sharp and 180 deg turns. I used 5k 1.5grams but it takes too long to come up to temp and the handling change is drastic when it does.
I think the new '15 diff is a step backwards from the old BD-5/7 diff.
The volume of oil is just as important as the viscosity. 10k is too thick for most carpet tracks like those with many sharp and 180 deg turns. I used 5k 1.5grams but it takes too long to come up to temp and the handling change is drastic when it does.
I think the new '15 diff is a step backwards from the old BD-5/7 diff.
#6345