The chassis brace will also help the body of your truck as well as the belt. I have had the body holes in the rear start tearing up around the edges from hard landings, but dremeling them out a bit in an oval shape front to back will help this also.

Suggest to use advise from someone who has already travel down the road you are using .....

Testing is not a easy thing to do ..
When we test ?
It take us many days, even weeks as track conditions change and affect results .

Good for you for trying and seeing what works for you. Some people with loads of experience still have issues with actually doing that :blush:

If you do get the RC Shox center diff, PM me as I have some spares for it that I found that I would sell cheap and some other things you may find useful. I would recommend also picking up at least 1 extra spur gear at least just in case from RC Shox.

The main thing with the Tekin Pro4 4600kv is to just watch temps and gear reasonably. I would say start with your current pinion and see how temps are after 3 minutes or so. Pay attention to how it feels around the track. You may find you will go down in pinion size depending on how big the track is. Having a selection of pinions works well in this case. Also, larger pinions like a 15t I believe (memory here) may need you to remove them before removing the motor from the mounting plate as they are too big for the opening.

One thing you can do, determine what someone else is using for gear at the track. use a speed calculator and find out what there estimated top speed is. Then, plug in your info to try and back track to similar top speed with the gear you want to use. You can then get a ballpark estimate on pinion size that way.

http://scriptasylum.com/rc_speed/_top_speed.html

good luck.

I don't think there is a smoother motor out there go 4x than the reedy 550 4.5.
It's a gem for sure

What is your experience as far as torque goes in comparison to a Pro4 motor?

Cain , I agree many
that do not try, test or even have Ae help .:lol:

the 4 pole is a 540 can so a 550 ?

Has more....

Biggest difference between?
Is the weight ....

Looking forward to seeing one of these Reedy's in person to compare, but from what I have seen from the Tekin and Novaks without the larger rotor, the 540 4 poles have more torque. may not be as smooth though.

Torque Curves
 

540 4 pole has way more torque then a 540 2 pole

550 2 pole has even more torque the a 540 4 pole

unfortunately, that is not what I saw in actual real world use with the Tekin 550 in several configurations or the Novak 550 (stock rotor, not the 13mm). It is what it is WC, on the extremely tight indoor carpet tracks I run on, torque in king. Guys are running Pro4 style motors in there 2wd stadium trucks to get that instance punch they need over the jumps coming off 180s where you are at a dead stop.

Can't comment on the Reedy however, never seen one used around these parts but doens't mean that it hasn't been. Will have to check around, but the usual "its smooth" nomenclature means "it doesn't have as much instant torque'.

Go ahead & test motor's some more then....:cool:

I can wait ....

Same here with the Center Diff ... ;)

Back to that crap ....:confused:


If your so expert ?

You could prove it works as Cameron ( Mantis best trusted driver) showed me it don't ...:ha:

As far as the Center diff working, yes, it does. As for Cameron's issues, I talked with him about what really happened, and it was no issue with the Center Diff as you already know but choose to ignore. It is what it is WC.

O please tell us what really happen ....:ha:

If there was no issue why did have to remove to get good laps like he did achieve with the VTS..
I drove his truck , watched in person carefully everything he did ...

His pit was about 10 ft away from mind ...


Up O !

Sounding like another engineer story....;)

I let you do that WC ...

or this one?

Which jives with what he said when I asked, that he was hunting essentially for anything to fix the issue.

But hey ... don't let the truth or your own words get in the way ...