engine ID

[rikkidy]

Can anyone identifie (or tell me how to) this motor? I ordered a 4.6 back plate and one way but, it don't fit. Note the back plate is some kinda composite. It is an HPI

 

[rikkidy]

Can anyone identifie (or tell me how to) this motor? I ordered a 4.6 back plate and one way but, it don't fit. Note the back plate is some kinda composite. It is an HPI

 

[Jam Racing 1]

Looks like a ver 1 4.6 hpi engine to me......

 

[fz1dave]

Looks like a ver 1 4.6 hpi engine to me......

I agree with jam.

 

[rikkidy]

do ya think it's worth spending $ on or should I replace it?

 

[rcnut14]

well, if u can find the correct backplate, it would be cheaper than a new engine. how does it run and how much has it been run?

 

[rikkidy]

well, if u can find the correct backplate, it would be cheaper than a new engine. how does it run and how much has it been run?

this I don't know I bought the rig from a rip off guy in prince george and have never had it running. The piston looks ok no scratches as far as I can see through the exhaust hole

 

[rcnut14]

I would take the head off and check to see what the top of the piston looks like. if u have to rebuild it, it probably would be better to get a new one

 

[X]

Since when is it less expensive to buy a new motor over rebiilding? The only reason nutjob could be remotely correct is that the V1 f4.6 is all but nonexistant now. I'm not sure if the V2 piston/sleeve will work, but it's worth a shot.

 

[rcnut14]

I didn't say it was less expensive. I said it would be better.

 

[rcnut14]

it's an old engine. who knows what could be wrong with it

 

[X]

Throwing away an engine that just needs a rebuild in favor of buying a new engine is not "better". To each their own though.

 

[rikkidy]

Time v/s money I guess. The rig that motor came with was advertised as rtr and not much on it is wirth a pooo so I think I'll just get a engine. What's the hottest one out there?
Maybe I'll play with that one some cold frozen winter night when the wife says NO

 

[Jam Racing 1]

Some say LRP others say a Nova or an OS , while others say an Ofna or Axial, I have had about all of them and am very satisfied with the Axial .32 that was in my Savage basket case, I also have a .32 Ofna in my XTM MMT which is a heavyweight weighing in at 18 pounds RTR and it moves right out... engine choice is like deciding on which pair of socks to wear to tonights dance... I am sure you will get many different replies and ultimately it is a decision you must make taking into consideration budget and availability.....
Good Luck and I look forward to seeing what you decide on doing.....

 

[Jr.]

That's an S-25

 

[X]

No, it is not Jr. The S-25 has a black crankcase.
https://www.hpiracing.com/en/part/1406

 

[rikkidy]

What do ya think of this one?
Team Associated 1/8 Monster GT 8.0

 

[Jr.]

No, it is not Jr. The S-25 has a black crankcase.
https://www.hpiracing.com/en/part/1406

Huh, you're sure right... I wonder if its the old .21 then?

As I recall, the 4.6's had the sides of the heads milled

 

[rcnut14]

jr., we know what it is. it's an original 4.6. I have the new 4.6, and they both have the same crankcase. thanks for ur input, anyway

 

[X]

Jr. the K4.6 has the head you are thinking of. As has already been pointed out in this thread, this is a V1 F4.6.