3LikesXray T4 2016
03-17-2017, 02:10 AM - Wikipost
|
|||
|
|||
|
08-11-2016, 02:48 AM
#901
08-11-2016, 05:34 AM
#902
Hi All!
I have been running 17.5 on asphalt this summer. Upon post race inspection today, I noticed one of the belt teeth on the front belt was half gone. Big deal or no? (White belts)
Also, found a cut on the rear belt...topside, down to the belting strands...so put a touch of CA in there
.
What is the general consensus about when to replace belts...when they just completely fail and fall off the car?
Thanks in advance!
I have been running 17.5 on asphalt this summer. Upon post race inspection today, I noticed one of the belt teeth on the front belt was half gone. Big deal or no? (White belts)
Also, found a cut on the rear belt...topside, down to the belting strands...so put a touch of CA in there
. What is the general consensus about when to replace belts...when they just completely fail and fall off the car?
Thanks in advance!
From an engineering point of view, you are more likely to have slippage problems from initial stretch of a new belt than loss because of a single damaged tooth.
08-11-2016, 06:49 AM
#904
This is how I look at it .
If their is chassis flex (which there is ) the relation between the servo and steering parts change wile car is flexing thru the corner when steering posts are attached to chassis .
When using the floating mount the servo and linkage are moving at the same time in the same dirrection no matter the chassis flex, but instead as it flexes it changes steering angles more dirrectly. Kinda hard to test on the bench really but able to be felt in the track under corner loads .
As for not using the floating mount but keeping it installed ... Its to make a quicker change if you decide to swap (it's already there) faster in the pits makes you faster on the track
If their is chassis flex (which there is ) the relation between the servo and steering parts change wile car is flexing thru the corner when steering posts are attached to chassis .
When using the floating mount the servo and linkage are moving at the same time in the same dirrection no matter the chassis flex, but instead as it flexes it changes steering angles more dirrectly. Kinda hard to test on the bench really but able to be felt in the track under corner loads .
As for not using the floating mount but keeping it installed ... Its to make a quicker change if you decide to swap (it's already there) faster in the pits makes you faster on the track
08-11-2016, 07:09 AM
#905
Tech Adept
Just wondering if XRay or other RC parts in Hong Kong's hobby shop (mostly in Mong Kok) will be cheaper than Singapore. For example, a XRay front low friction belt (the white color one) cost about SGD$16+, and a set of RIDE touring rubber tyres cost SGD$45 in Singapore.
Any Hong Kong racers around to provide inputs?
Any Hong Kong racers around to provide inputs?
08-11-2016, 07:29 PM
#906
I'll be the contrarian here. I'd say changing belts every time you chip a tooth is a waste. Playing hurt is one reason we went to HTD drives over chains in the first place. The teeth flex and compress as they ride over the sprocket, survive slippage, and have small rocks and debris run through it all the time. A well worn belt will have missing teeth, be significantly stretched out, and have some twist from irregular wear yet still not slip and have no significant loss in power transfer.
From an engineering point of view, you are more likely to have slippage problems from initial stretch of a new belt than loss because of a single damaged tooth.
From an engineering point of view, you are more likely to have slippage problems from initial stretch of a new belt than loss because of a single damaged tooth.
Hard decision! Especially because the voodoo placebo effect could go either way...me thinking the white belts are faster so thinking I'm faster...or thinking they are about to fail and need to be replaced so driving more conservatively.
Thanks for all the thoughts!
Last edited by JeffofSpace; 08-11-2016 at 07:30 PM. Reason: Spelling
08-14-2016, 01:37 AM
#907
Tech Fanatic
iTrader: (1)
Just wondering if XRay or other RC parts in Hong Kong's hobby shop (mostly in Mong Kok) will be cheaper than Singapore. For example, a XRay front low friction belt (the white color one) cost about SGD$16+, and a set of RIDE touring rubber tyres cost SGD$45 in Singapore.
Any Hong Kong racers around to provide inputs?
Any Hong Kong racers around to provide inputs?
08-14-2016, 07:26 PM
#908
Tech Apprentice
Hi all, a question regarding the progressive spring (2.5-2.8 or 2.3-2.6). Do they have top side and bottom side? Side view of the progressive spring shows that distance between coils varies. i.e. from wider to narrower or the other way round depends on which side the spring is standing on. Or I can just ignore that?
08-14-2016, 10:36 PM
#909
Just wondering if XRay or other RC parts in Hong Kong's hobby shop (mostly in Mong Kok) will be cheaper than Singapore. For example, a XRay front low friction belt (the white color one) cost about SGD$16+, and a set of RIDE touring rubber tyres cost SGD$45 in Singapore.
Any Hong Kong racers around to provide inputs?
Any Hong Kong racers around to provide inputs?
Also, best to buy in cash as they sometimes give discounts for cash payments. If you purchase via credit card, there will be a 3 - 5% surcharge I think (that was 3-4 years go when i paid via card). Just shopped there in June and paid in cash.
Many parts in Action hobbies but not complete (sway bar and spring sets not complete).
08-19-2016, 01:30 AM
#913
08-19-2016, 05:24 PM
#914
