2.5 vs. 2.5r

[nitromaxx3.3]

is there much of a diffrence between the two? how can you tell if its a 2.5r?

 

[trich88]

The 2.5r has a blue head on it i just put a 2.5r motor on my t maxx i can't really tell a difference other then the blue head i think its basically the same motor... its a direct drop in for the regular 2.5

 

[itsalifeworthliving]

same thing here. there isnt a big diffrence. i swapped a 2.5r to a 2.5 and didnt really notice much.

 

[jay3]

The only difference is that it has a newer cooler looking and performing cooling head on it.
(Atleast thats what I read)

 

[nitromaxx3.3]

but power wise is there any difference? can you compare some things to the 3.3?

 

[jay3]

Exactly the same engine as 2.5, just different head. This will allow the engine to run at a cooler temperature (You should be running at a proper temp with the 2.5cooling head anyways). The 3.3 is a hole new engine with the same cooling head as the 2.5R.

 

[nitromaxx3.3]

but why is everyone saying the 3.3 is better?

 

[olds97_lss]

E... with the same cooling head as the 2.5R.

I think you meant to say "same style". The 3.3 head is larger.

The TRX2.5(R) is 2.5cc (.15ci) whereas the 3.3 is 3.3cc (.20ci). The 3.3 has more torque and hp than the 2.5 but doesn't loose much in the peak RPM's. So, anything you have with a 2.5(r) in and replace with a 3.3, you will notice a pretty decent performance bump.

 

[jay3]

Yeah, i meant same material/colour/style as 3.3.

 

[nitromaxx3.3]

but can you tell from a picture its a 2.5r, is there like any numbers?

 

[SMaxxin]

but can you tell from a picture its a 2.5r, is there like any numbers?

You can not tell the difference...If someone put a blue head on an old 2.5 they could tell you it a 2.5r and you would never know the difference. As for power they are the same.

 

[abadk9420]

I Believe It Says On The Side Of The Motor 2.5 Or 2.5r.

 

[SMaxxin]

I Believe It Says On The Side Of The Motor 2.5 Or 2.5r.

It says TRX on the motor and thats it.