Yokomo MR-4TC SD
Originally posted by Matt Howard
And new Reedy/Yokomo mod motors with aluminum endbells
http://www.teamyokomo.com/japan/newp...zt6208_450.jpg
And new Reedy/Yokomo mod motors with aluminum endbells
http://www.teamyokomo.com/japan/newp...zt6208_450.jpg
Have you used MIP CVD's on the Yok SD Matt? I know you usually use the old MR4 UJ's - but those RS/MIP items look pretty good, just wondered if you knew how durable they are for 'average racers'.
Regards
Horatio
Tech Champion
iTrader: (6)
Originally posted by Horatio
It will be interesting to see how these compare to the Orion V2 modifieds.
Have you used MIP CVD's on the Yok SD Matt? I know you usually use the old MR4 UJ's - but those RS/MIP items look pretty good, just wondered if you knew how durable they are for 'average racers'.
Regards
Horatio
It will be interesting to see how these compare to the Orion V2 modifieds.
Have you used MIP CVD's on the Yok SD Matt? I know you usually use the old MR4 UJ's - but those RS/MIP items look pretty good, just wondered if you knew how durable they are for 'average racers'.
Regards
Horatio
Tech Elite
iTrader: (42)
hey matt couple questions wherer can i get the new stuff overseas i use to run with u at etown im in pa. but i ordered some stuff from presicion rc an was wondering when i can get the body fan an mount
im me on aol im if u can xcaptainpunchx is my sn
im me on aol im if u can xcaptainpunchx is my sn
Tech Elite
iTrader: (42)
i also have some setup issues im running with cuffs every week at my track an hes fast
Tech Champion
iTrader: (6)
Originally posted by DENNIS STORTI
hey matt couple questions wherer can i get the new stuff overseas i use to run with u at etown im in pa. but i ordered some stuff from presicion rc an was wondering when i can get the body fan an mount
im me on aol im if u can xcaptainpunchx is my sn
hey matt couple questions wherer can i get the new stuff overseas i use to run with u at etown im in pa. but i ordered some stuff from presicion rc an was wondering when i can get the body fan an mount
im me on aol im if u can xcaptainpunchx is my sn
Tech Champion
iTrader: (6)
Originally posted by DENNIS STORTI
i also have some setup issues im running with cuffs every week at my track an hes fast
i also have some setup issues im running with cuffs every week at my track an hes fast
Tech Elite
iTrader: (9)
Originally posted by Blakesrc
Shooky,
what track are you racing at? I have a couple of setups for different places in So Cal so i might be able to help.
Blake
Shooky,
what track are you racing at? I have a couple of setups for different places in So Cal so i might be able to help.
Blake
Also I just installed the Product D gear ratio revision on my SSG and for what it does I would recommend it. It brought my Motor into touching the Drive shaft if I use anything smaller than a 48P 69T spur. I read all that people were saying about how the Product D item was not useful, I respectfully disagree with there assesment of that product. It changed my roll center and helped me get my car so close to a finishing set-up that I need maybe another day of tuning before it will be ready for a set-up sheet. I have had a problem with pushing before the Upgrade and it still pushes a little but a like I said one more day of tuning should have it solved. I look forward to your suggestions.
Thanks in advance
Stephen <><
Tech Elite
iTrader: (14)
I don't get it... how can bevel gears change anything about handling? The only thing I can think about is a different mesh which binds the transmission differently and creates a different built-in braking pattern... as for the rest, gear ratio is gear ratio to me... otherwise, I need somebody to explain, because I really don't get it...
Paul
Paul
Tech Elite
iTrader: (9)
Originally posted by Lonestar
I don't get it... how can bevel gears change anything about handling? The only thing I can think about is a different mesh which binds the transmission differently and creates a different built-in braking pattern... as for the rest, gear ratio is gear ratio to me... otherwise, I need somebody to explain, because I really don't get it...
Paul
I don't get it... how can bevel gears change anything about handling? The only thing I can think about is a different mesh which binds the transmission differently and creates a different built-in braking pattern... as for the rest, gear ratio is gear ratio to me... otherwise, I need somebody to explain, because I really don't get it...
Paul
Stephen<><
Matt:
Cheers for the CVD/Motor info. Much appreciated.
Cheers for the CVD/Motor info. Much appreciated.
You are actually making the motor work a tiny bit less to get the car moving... The TC3 is a 2.5 ratio.... Me personally I like the fact them my Yok is 2.3 and TC3 is 2.5, they are always around 2 teeth apart on the pinions which means I never have to buy any more than what I own...
Tech Regular
Anyone remember yokomo had made aluminium endbell years ago, which was purple in colour. Looks just like the new one except colour. Reedy never used it( too expensive, I think) but Corally did use it, I had one long time ago.
Tech Regular
when you talk about move the motor toward the center, you change the polar moment, not roll center. Roll center is determined by suspenion geometry. I like to use bigger spur gear, so I can move the motor to the outside, it helps to balance the weight left and right. GP cells are so heavy, even Sanyo are heavy.
Originally posted by shooky
Well here is how it works for ME. By changing the gear ratio, you can use smaller spur gears by which you can move the motor in towards the center line of the car, by which it make the roll center better, by which makes MY car handles better for ME. These assesments are what is working for me. I actually bought it, tried it, enjoy it and will keep it. I am a person who will only give advise or my opinion on things I have either seen or have tried myself. I am not bashing anyone, but tired of people always bashing things that they haven't tried themselves. I happen to like the Product D gears, not only does it help roll center but the gears are aluminum which last longer than the plastic ones. Also you will have to shim the diffs inward so as not to have a binding issue. Hope this helps you make a informed judgement.
Stephen<><
Well here is how it works for ME. By changing the gear ratio, you can use smaller spur gears by which you can move the motor in towards the center line of the car, by which it make the roll center better, by which makes MY car handles better for ME. These assesments are what is working for me. I actually bought it, tried it, enjoy it and will keep it. I am a person who will only give advise or my opinion on things I have either seen or have tried myself. I am not bashing anyone, but tired of people always bashing things that they haven't tried themselves. I happen to like the Product D gears, not only does it help roll center but the gears are aluminum which last longer than the plastic ones. Also you will have to shim the diffs inward so as not to have a binding issue. Hope this helps you make a informed judgement.
Stephen<><
You will also want to do the same for the cells - fair enough.
When using GP3300's, the motor side of the car is the lighter side of the car - it's way too deep for me to want to go there for any length of time - but I gather that if you move the motor closer to the cells, you'll probably need to add extra weights to keep the chassis properly balanced (in theory).
Regards ratio with the 2.5 Product D - anyone with a TC3 will have already used that very same internal final drive ratio. ON the SD, I pretty much use the 48dp 70 tooth spur - I use ratios in the 1:7 range for 19t superstock indoors on rubber.
Using the stock internal ratio, that means I'm usually running 21/22/23 tooth pinions with the 70 tooth spur, depending on the track. On 2.5 ratio kit, that would mean I would need to use 23/24/25 tooth pinions - placing the motor further out.
So what Spurs do you run?
Originally posted by caveman
when you talk about move the motor toward the center, you change the polar moment, not roll center. Roll center is determined by suspenion geometry. I like to use bigger spur gear, so I can move the motor to the outside, it helps to balance the weight left and right. GP cells are so heavy, even Sanyo are heavy.
when you talk about move the motor toward the center, you change the polar moment, not roll center. Roll center is determined by suspenion geometry. I like to use bigger spur gear, so I can move the motor to the outside, it helps to balance the weight left and right. GP cells are so heavy, even Sanyo are heavy.
Also thanks for pointing out that lateral balancing is actually to do with the polar moment of inertia - not roll centres.
As I understand it, roll centres are determined by the Angle of the camber links, the angle of the suspension arms at ride height and the lines that intersect with the contact patch of the tyres.
The lower the roll centre is from the CoG, the more the car will roll and therefore produce more grip - the higher the roll centre/closer it is to the CoG, the car will roll less and produce less grip.
Front and rear roll centres are not normally the same and the line that passes through both these theoretical points produce what is known as the roll axis.
If a car isn't laterally balanced, it will obviously effect the CoG but what about the the roll centres? Surely these theoretical points won't be central to the car - so presumably neither will the roll axis? Even if the suspension geometry is symetrical?
Last edited by Horatio; 10-19-2004 at 09:15 AM.