Tamiya TRF417
#5941
Tech Master
#5943
Just a longer rear wheelbase because the motor is further back with the Smokem V7 compared to the RB
Kentech mod has no screws in the motor mount so the flex point is more or less in the middle of the car
Smokem conversion has only 1 top deck screw in the motor mount at the front which moves the flex point forward, but also lets the top deck to flex freely above and behind the layshaft like yokomo/raceberry
Sepes conversion (like 417) can't do that configuration easily, either it will be just like kentechs mod with the flex completely in the center or it will be like a standard 417 with the rear end very stiff
The best of all worlds is the 418, it has a captured layshaft so you can run it like the yoke/RB but also has screw holes over the layshaft to stiffen up the rear end if the track demands that
Kentech mod has no screws in the motor mount so the flex point is more or less in the middle of the car
Smokem conversion has only 1 top deck screw in the motor mount at the front which moves the flex point forward, but also lets the top deck to flex freely above and behind the layshaft like yokomo/raceberry
Sepes conversion (like 417) can't do that configuration easily, either it will be just like kentechs mod with the flex completely in the center or it will be like a standard 417 with the rear end very stiff
The best of all worlds is the 418, it has a captured layshaft so you can run it like the yoke/RB but also has screw holes over the layshaft to stiffen up the rear end if the track demands that
One advantage of Smokem is that, if you have V5 bulkheads, then you don't need to add any shims under the topdeck. If you are running 417/417x bulkheads, then you need 1mm under but have the option to not add the shims and level the motor mount + screw to stiffen up.
The other advantage is that the original 417V5 bottom deck/belts can be used with the smokem.
Overall, I feel that the Smokem provides a more consistent drive/ more rear grip than stock with the same setting, someone us have therefore, changed our setup to give more steering.
#5945
The big advantage of the Sepes Conversion set is that all parts are could separately being used with the TRF417
One possible configuration is the use of the original motormount with center post and lifted (free from the centershaft holder) top deck.
Another configuration is the use of only the sepes motormount with the original TRF417 topdeck.
The lifted topdeck is tested with 1.5mm spacers under the bulkheads in combination with the original lower deck which gives the best flex properties.
Please note that the Sepesmotormount has a new design middle layshaft holder. Different from the original ‘open’ part the ‘closed’ designed of the bulkhead captures the layshaft bearing to allow to lift the upper deck in order to further adjust chassis flex and therefore the characteristic of the car.
One possible configuration is the use of the original motormount with center post and lifted (free from the centershaft holder) top deck.
Another configuration is the use of only the sepes motormount with the original TRF417 topdeck.
The lifted topdeck is tested with 1.5mm spacers under the bulkheads in combination with the original lower deck which gives the best flex properties.
Please note that the Sepesmotormount has a new design middle layshaft holder. Different from the original ‘open’ part the ‘closed’ designed of the bulkhead captures the layshaft bearing to allow to lift the upper deck in order to further adjust chassis flex and therefore the characteristic of the car.
#5946
Tech Master
Can you race stock (17.5 blinky) with the Sepes motor mount and no screws in the top deck other than the front and rear bulkheads?
#5947
#5948
If using TRF417x Bulk heads and want to use the two top deck holes, then the centre post of the smokem conversion cannot be used since it will sit too tall.
The other option is obviously to shim up the top deck + motor mount
#5949
I just picked up a 417 with front and rear gear diffs and will be racing 17.5 blinky this Sunday on a 80x40 indoor carpet track. Can somebody please give me a starting point on gearing and fdr . Thanks in advance !
#5950
Tech Master
For my 417 I used a 100t spur and 49t pinion for 17.5 blinky with my ORCA at about 3/4 advance timing and it was smooth and fast without the motor getting very hot.
Also I used a gear diff with 500k oil in the front sometimes if I found any corners too tight
Also I used a gear diff with 500k oil in the front sometimes if I found any corners too tight
#5952
Tech Master
iTrader: (19)
I ran the Smokem V7 conversion last night the biggest thing I noticed the car was real darty and hard to drive early in a run but it wouldn't over rotate as soon as the tire sauce wore off the car was great next time no sauce or just sauce the inside of the front tires. I was really happy how the car ran from 2 min into the race till the end it was fast qualified 2nd and was real happy with my car.
#5954
Has anyone put a gear ratio chart together for the raceberry conversion yet??
I do know that you can use your calculator but its better for me to look at a chart
Cheers
I do know that you can use your calculator but its better for me to look at a chart
Cheers
#5955
Tech Adept
iTrader: (5)