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Old 01-09-2015, 05:01 AM   #706
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Here you go.

All the springs, 42278 at the front. Kit 418 incl. "bonus" to the rear.


And then each side by side - you can already tell they are grossly different. 42278 (with tubes for yellow and red) to the left.


And some numbers.

Yellow "hard" - 6 coils and 6.5 coils


Black "medium" - 6.5 and 7.25


Red "soft" - 7 and 7.75


All wire is 1.5mm and wound the same direction. For comparison, HPI silver (6543) are 6.5 coils of 1.5mm wire. So in theory same as the medium in the TRF set.

The 419 manual lists the springs as 42278 (red) so when I finally open my kit I'll compare those too.
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Old 01-09-2015, 05:21 AM   #707
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And why not, a HPI comparison for Nerdiness sake.

TRF Black - HPI Silver - 418 Yellow

All 6.5 coils of 1.5mm. HPI wound the other way as compared to Tamiya.


And top view you can see how similar they are.
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Old 01-09-2015, 05:25 AM   #708
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Thanks for that. So my list will be for the kit springs not the pack ones. I need to check the ones in the 419 as I didn't even look at them.
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Old 01-09-2015, 05:33 AM   #709
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I've never used any of these. I bought the TRF ones about the time I got the 418 thinking it would make a set as I mentioned. Unpacked them and thought "what the hell" and proceeded to use the ride springs I have and have just stuck with them - they are consistent and publish the rates.

I doubt I'll use the 419 ones either!
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Old 01-09-2015, 09:55 AM   #710
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lets get some Lbs compared to yoko pink and blues lol
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Old 01-09-2015, 10:59 AM   #711
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Here is a website that calculates spring rates.

http://www.thespringstore.com/spring...alculator.html
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Old 01-09-2015, 11:26 AM   #712
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HMMMM THATS COOL
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Old 01-09-2015, 11:54 AM   #713
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Quote:
Originally Posted by cplus View Post
And why not, a HPI comparison for Nerdiness sake.

TRF Black - HPI Silver - 418 Yellow

All 6.5 coils of 1.5mm. HPI wound the other way as compared to Tamiya.


And top view you can see how similar they are.
Nice! Thanks for sharing. Good to know they are different then. I always felt the 418 springs were completely worthless. Glad Tamiya recognized that. Maybe I'll pick up a set to try.

- JV
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Old 01-09-2015, 12:15 PM   #714
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Quote:
Originally Posted by SoCalMitch View Post
Here is a website that calculates spring rates.

http://www.thespringstore.com/spring...alculator.html
What do you use for material?

Wouldn't that be different from one manufacturer to another?
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Old 01-09-2015, 01:58 PM   #715
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Hi guys,

I'm thinking about getting the 419, but is it possible to change the diff screws to something that fits and isn't a "self tapper" ? Is it even adviseable?

Just saw MR in practice today at the DHI Cup, car looked good, but not as fast as Volker and the BD7... I hope he can close the gap to Ronald during the weekend
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Old 01-09-2015, 02:36 PM   #716
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The diff case screws are fine, they are not the easiest to screw in cause the 1.5mm hex is a bit shallow. It's no great issue, but is stands out as it's just not as great as the rest of the components.
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Old 01-09-2015, 03:04 PM   #717
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Quote:
Originally Posted by Qatmix View Post
The diff case screws are fine, they are not the easiest to screw in cause the 1.5mm hex is a bit shallow. It's no great issue, but is stands out as it's just not as great as the rest of the components.
That's why I wan't to change them out. It might not be a big deal, but if it's possible to use another screw, I will do it for sure.
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Old 01-09-2015, 04:00 PM   #718
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An incredible stupid question:
How do you Mount your fans?
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Old 01-09-2015, 04:01 PM   #719
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Quote:
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That's why I wan't to change them out. It might not be a big deal, but if it's possible to use another screw, I will do it for sure.
For four screws that you do once every blue moon if you are lucky (and if you run multiple diffs) - don't bother.

You could try to find a 2mm ish machine screw instead of a self tapper, but you would need to get a very small tap suitable for plastic also. Not so easy.

The xray t4-15 screws are 2.5mm (but 6mm deep not 8mm) and pretty sure the BD7 screws are about right - you could try and get them to fit perhaps if you really wanted to.

It all honestly, it's an "annoyance" not a "problem"

Maybe Naoto will loose his shit the first time he has to build one and they'll fix it
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Old 01-09-2015, 04:03 PM   #720
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Quote:
Originally Posted by lmlindbo View Post
An incredible stupid question:
How do you Mount your fans?
With a fan/motor mount.



Or just with double sided tape. My WTF fan was held on for months with a piece smaller than my finger nail!
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