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-   -   RB Concept Engine Thread (https://www.rctech.net/forum/offroad-nitro-engine-forum/191799-rb-concept-engine-thread.html)

LiL_JaSoN 07-26-2010 06:56 PM


Originally Posted by DS Motorsport (Post 7720099)
The 2604 or the Capricorn 2662 work best.
I like the 2604 the best, the 2662 gives it a higher top speed but less bottom/mid power.

The 2630 is a useless pipe if you ask me, uses a lot of fuel and creates a lot of heat with less power as most other pipes.
If you want a nova pipe get the 2660 instead.

ill stick with the stock 2604 pipe then.

Speedy Gun 07-27-2010 04:59 PM

Can anyone tell me if the piston & sleeve, rod for a T9/10 will work in a R3?

LiL_JaSoN 07-27-2010 07:06 PM

for 25% nitro on a RB TJ10, you guys recommend adding a .1 or .2 shim?

i need to buy some shims - will these fit http://www.amainhobbies.com/product_...n/RB-Head-Shim

Stlfc 07-27-2010 07:57 PM


Originally Posted by LiL_JaSoN (Post 7728078)
for 25% nitro on a RB TJ10, you guys recommend adding a .1 or .2 shim?

i need to buy some shims - will these fit http://www.amainhobbies.com/product_...n/RB-Head-Shim

Add .2 to run 25% also if I am not mistaken those silver shims are .3. FYI picco shims will work also.

LiL_JaSoN 07-27-2010 08:06 PM


Originally Posted by Stlfc (Post 7728311)
Add .2 to run 25% also if I am not mistaken those silver shims are .3. FYI picco shims will work also.

looking at the packet of the picture, it says they are 0.3 thanks for that.

http://www.amainhobbies.com/product_...-020mm-0008-28

this one? :S

or this - http://www.amainhobbies.com/product_.../RB-Head-Shims

it says for .21 but also fits junior 9 etc

Stlfc 07-27-2010 09:09 PM


Originally Posted by LiL_JaSoN (Post 7728358)
looking at the packet of the picture, it says they are 0.3 thanks for that.

http://www.amainhobbies.com/product_...-020mm-0008-28

this one? :S

or this - http://www.amainhobbies.com/product_.../RB-Head-Shims

it says for .21 but also fits junior 9 etc

They made a junior 9 .21 buggy engine also so those won't work.

These are what you want:
http://www.serpentamerica.com/shop/p...6&cat=9&page=1

LiL_JaSoN 07-27-2010 09:20 PM


Originally Posted by Stlfc (Post 7728662)
They made a junior 9 .21 buggy engine also so those won't work.

These are what you want:
http://www.serpentamerica.com/shop/p...6&cat=9&page=1

only problem is.. postage is $93.. lol

but found them elsewhere

http://shopping.rcmodel.hk/product_i...10jfpk428o2625

or should i get the .15

http://shopping.rcmodel.hk/product_i...ducts_id=14708

Stlfc 07-28-2010 04:59 AM


Originally Posted by LiL_JaSoN (Post 7728712)
only problem is.. postage is $93.. lol

but found them elsewhere

http://shopping.rcmodel.hk/product_i...10jfpk428o2625

or should i get the .15

http://shopping.rcmodel.hk/product_i...ducts_id=14708

Well you need a total of .5 shims so what ever way you can come up with that number is not important. I always use 2-.1 shims and the stock shim when running 25% and the motors seem to like that.

LiL_JaSoN 07-28-2010 05:48 AM


Originally Posted by Stlfc (Post 7729665)
Well you need a total of .5 shims so what ever way you can come up with that number is not important. I always use 2-.1 shims and the stock shim when running 25% and the motors seem to like that.

2x 0.1 shim will be good

:D ordered.

Maximo 07-28-2010 02:40 PM

On the RB K9/K10 run a total of 3 x 0.22 mm shims for 30%....They are the included shims with the engine...some of these engines came with 4 shims, some came with 3 shims.....however for 30% fuel 3 shims is about right, 4 shims is too many and lowers the compression too much IMO ..

DS Motorsport 07-28-2010 03:19 PM


Originally Posted by Speedy Gun (Post 7727466)
Can anyone tell me if the piston & sleeve, rod for a T9/10 will work in a R3?

Yes, they are a direct fit.
The crankcase hasn't changed.
Only big change has been the T10RC crankshaft which is now balanced.

Speedy Gun 07-29-2010 09:07 AM


Originally Posted by DS Motorsport (Post 7731848)
Yes, they are a direct fit.
The crankcase hasn't changed.
Only big change has been the T10RC crankshaft which is now balanced.

Thank you Mr DS, one thing solved working on the car next.

musti72 07-29-2010 12:20 PM

So Novarossi Plus 12-3SCT Piston sleeve fits on a R3? And where can I find a T9/10 piston sleeve set online? I will need a new P/S for my R3...

Speedy Gun 07-30-2010 09:49 AM


Originally Posted by musti72 (Post 7736004)
So Novarossi Plus 12-3SCT Piston sleeve fits on a R3? And where can I find a T9/10 piston sleeve set online? I will need a new P/S for my R3...

I dont know if nova plus will work, fit yes Im sure somebody knows. Seen the piston and sleeve set on A main hobbies under engine parts. From what I was told it has a little higher exhaust port.

Grinder 07-30-2010 09:55 AM


Originally Posted by musti72 (Post 7736004)
So Novarossi Plus 12-3SCT Piston sleeve fits on a R3? And where can I find a T9/10 piston sleeve set online? I will need a new P/S for my R3...

Yes. The +12-3sct piston/sleeve/rod are a direct fit for the rbr3, rbm3, t10, t10rc. ;)


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