New to Engines: some enquiries.

[nightbreed]

Well, I've decided to give nitro another shot. The truck in mind is either the Associated RC10GT or Losi XXX-NT AD2 kit.

From what I've read in magazines, these trucks are usually paired with a .12, .15 or .18 engine. So, my question is this:

1. How big an engine can these trucks use without sacrificing control?
2. Same displacement engines can be used for different purposes. So which kind of engine good for backyard bashing, but can still go fast?
3. Which brand to get?
4. Which one can be tuned easily?

Thank you!

[Mad Armour]

Well, I've decided to give nitro another shot. The truck in mind is either the Associated RC10GT or Losi XXX-NT AD2 kit.

From what I've read in magazines, these trucks are usually paired with a .12, .15 or .18 engine. So, my question is this:

1. How big an engine can these trucks use without sacrificing control?
2. Same displacement engines can be used for different purposes. So which kind of engine good for backyard bashing, but can still go fast?
3. Which brand to get?
4. Which one can be tuned easily?

Thank you!

Your RS4-MT2 is beyond redemption?

Anyway, rc engine is broadly based into 2 group - small block and big block. The mounting for these 2 groups are different and I believe the dimension is different too. I'm not exactly sure where the cutoff point is but I think small block is .15ci to .18ci or less, while big block is anything bigger than .21 ci.

So even if you managed to mount on a big block engine to a small block chassis, the clutch may not be align. In other words, it's not a drop-in engine.

The bigger the engine, the faster your truck will be. Control is largely in your hands.

Some engines are made for off-roading, with higher torque while some made for on-road, with higher speed.

OS engines are known to be easy to tune. Those Italians are manic but behaves like prima donnas too.

Cheers!

[Icon]

Yup.. mad armour is right.

I have seen 0.18 sirios installed in 1/10 scale V1S.

Going fast don't just depend on the Engine size. Alot plays on the gearing use too.

For me, if i were to do mainly backyard basing and no racing(have yet to see an organised truck race here), I'll just plop in the Biggest powerplant i can get to fit.

Just do a decent engine run in process and you should have a reliable engine to last for yonks.

[Mad Armour]

For me, if i were to do mainly backyard basing and no racing(have yet to see an organised truck race here), I'll just plop in the Biggest powerplant i can get to fit.

Agreed! A .18 engine can be cheaper than a racing .12.

[Orangie]

They used to have MT racing at TC ... when its still around

[Mad Armour]

They used to have MT racing at TC ... when its still around

That's history liow lor......

[Orangie]

I agree Just get a decent engine, just dun be TOO greedy for speed and power.

[Orangie]

That's history liow lor......

Ya... that may be in the books for the shortest lived HS

[nightbreed]

I agree Just get a decent engine, just dun be TOO greedy for speed and power.

Yup, the temptation is there to get the biggest one out there, budget permitting. But I guess I'm more interested in the ease of tuning it, given the frustrations from last time.

Will the truck manual give me an idea of how big an engine it can accomodate? If not, how to find out? Also, if I get an OS engine and want to change the cooling head, do I need to get an OS cooling head or any after-mkt ones can do? Finally, who sells a good range of engines?

Thank you all for your time!

[Mad Armour]

Yup, the temptation is there to get the biggest one out there, budget permitting. But I guess I'm more interested in the ease of tuning it, given the frustrations from last time.

Will the truck manual give me an idea of how big an engine it can accomodate? If not, how to find out? Also, if I get an OS engine and want to change the cooling head, do I need to get an OS cooling head or any after-mkt ones can do? Finally, who sells a good range of engines?

Thank you all for your time!

Think proper running-in will save you lots of headache later on. As for pricewise, you'll find a racing .12 will be more expensive than a .18.

As for the recommended engines, I think you can try downloading the truck's manual to check it out. If it says .12 (assuming it's the Losi you want), you can bet it's a small block and a .21 won't fit.

[Icon]

Yup, the temptation is there to get the biggest one out there, budget permitting. But I guess I'm more interested in the ease of tuning it, given the frustrations from last time.

Will the truck manual give me an idea of how big an engine it can accomodate? If not, how to find out? Also, if I get an OS engine and want to change the cooling head, do I need to get an OS cooling head or any after-mkt ones can do? Finally, who sells a good range of engines?

Thank you all for your time!

Chances are if you truck runs a .12 or .15 it could accomodate a .18

I think the Sirio .18 pull start is slightly cheaper then a Sirio .12 Evo 2 so you might want to consider a .18 instead as it got loads of low end torque.

[nightbreed]

Chances are if you truck runs a .12 or .15 it could accomodate a .18

I think the Sirio .18 pull start is slightly cheaper then a Sirio .12 Evo 2 so you might want to consider a .18 instead as it got loads of low end torque.

Hmm. This isn't easy at all. Tower's got this combo of the AE RC10GT with an OS .12 CV-RX (S) w/10ER Rotary Carb (whatever that is). Any idea if this engine will do? Apparently, the 10GT takes only a shorter shaft, hence the (S) designation.

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXXA43

.15 engines aren't that many.

Sirio engines ARE expensive!

So, anyway, any idea if cooling heads need to be from the same company or any one will do?

Thank you!

[Orangie]

Yup, the temptation is there to get the biggest one out there, budget permitting. But I guess I'm more interested in the ease of tuning it, given the frustrations from last time.

Will the truck manual give me an idea of how big an engine it can accomodate? If not, how to find out? Also, if I get an OS engine and want to change the cooling head, do I need to get an OS cooling head or any after-mkt ones can do? Finally, who sells a good range of engines?

Thank you all for your time!

Given time and patience, I believe most engine are not that difficult to tune
I've seen ppl tuning the engine by 1/4 turn of the needle and they enjoy the engine while it lasted

A big block engine can't fit into a chassis meant for a small block engine unless going for extreme mod-ing.

Manuals would recommand the engine... as for my mad force. If you do not fancy the recommanded engine, can alway get the same block size engine. If the recommanded is a .12, can always get a .12, .15 or even a .18 as these are small block engine. These engines usually are able to fit into a 1/10 car.

About the cooling head, got to get 1 that fits I've got a old sirio head that can't fit onto a nova

Hope t helps

[Icon]

Hmm. This isn't easy at all. Tower's got this combo of the AE RC10GT with an OS .12 CV-RX (S) w/10ER Rotary Carb (whatever that is). Any idea if this engine will do? Apparently, the 10GT takes only a shorter shaft, hence the (S) designation.

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXXA43

.15 engines aren't that many.

Sirio engines ARE expensive!

So, anyway, any idea if cooling heads need to be from the same company or any one will do?

Thank you!

The only after market heat sink i know of is from M Speed. And they are model specified. Meaning that unless its for that particular model it ain't going to fit.

Just for bashing I am sure any engine will be fine.

[Orangie]

From the osengines site, OSMG2048 12 CV-RX w/10 E-R (Rotary) Carb gives
1.0HP @ 31,000 rpm

Er.. there is a limited choice of short shaft engine locally I think there only sirio and os.

GPM have aftermarket cooling heads, so does other who customise it.



Hmmmm..... why think of mod when its ain't broken?