gofastkid

I have a tmaxx and I was wondering if I should keep my 3.3 motor or get a os 18mt. what should I do?

KRO

The TM has alot more torque and a little more HP , my son can pull wheelies from a dead stop and rolling at 5-10 mph with his REVO .18TM .

I like the 3.3 , but I like the O.S. .18TM alot better !

LSTVega28

There isn't alot, but noticeable. There isn't much differnce between the two engines performance wise.

adam032981

Keep the 3.3 until it ceases and if you want the better motor get the O.S. but if you wana save yourself some money get the 3.3

DaveG55

Is there some reason you're asking that question?
If the 3.3 is doing fine for then why would you change?
If the 3.3 has issues then you need to determine if they are the fault of the engine or the operator. (no offense intended but sometimes newbs have engine issues that they think a new motor will fix when what they really need is more experence)
If you just want more power then the TM is not your best choice.

LSTVega28

+1

You need to look into a Picco or any .21+ big block if you are craving for some power.

gofastkid

Is the picco .26 max a direct drop-in?

IOWAREVO

Below is a collection of information for the COMMON small & mid block engines installed in a REVO. I have avoided HP, Torque, & Price intentionally. I thought this might be useful to someone thinking about replacing their engine. This list deals with what is commonly called “Drop-in” engines. If I have missed any or have any wrong info please let me know. Opinions & comments are always accepted (like I have a choice…lol)

EZ = EZstart
RT= Rotostart or Jumpstart
PS= Pullstart
SB=starter box (bump start)
RT adapter: Conversion that replaces the EZ or PS on a PS engine
SB adapter: Conversion that replaces the EZ or PS w/o grinding down crank nub
Non PS version: Used for new install with SB
Note: You can usually bump start an engine with a RT or PS in place but you’re still carrying the weight of it.

Small Block

Model: TRX 2.5R (.15)
Mount: none required
Starting System: EZ or PS compatible
Additional Parts: includes PS
RT adapter: Ofna TRX Engine Backplate (OFN50007)
SB adapter: Maximizer TRX 2.5R, 3.3R Backplate (w/ heatsink) (MAX2245)
Non PS version: Available

Model: OS .18 TM w/Revo Manifold
Mount: None needed
Starting System: EZ or PS compatible
Additional Parts:comes with exhaust manifold
RT adapter: Ofna TRX Engine Backplate (OFN50007)
SB adapter: Maximizer TRX 2.5R, 3.3R Backplate (w/ heatsink) (MAX2245)
Non PS version: none

Model: TRX 3.3 (.20)
Mount: none required
Starting System: EZ or PS compatible
Additional Parts: includes pullstart
RT adapter: Ofna TRX Engine Backplate (OFN50007)
SB adapter: Maximizer TRX 2.5R, 3.3R Backplate (w/ heatsink) (MAX2245)
Non PS version: TRA5404






Mid-Block

Model: RB Concept TM323 .23 Revo
Mount: provided
Starting System: EZ or PS compatible
Additional Parts: comes with rear pipe & manifold
RT adapter: Ofna TRX Engine Backplate (OFN50007)
SB adapter: Non Pull Start Rear Engine Back Plate (RBC01901-323210)
Non PS version: none

Model: RB Concept TM523 .23 Revo
Mount: provided
Starting System: EZ or PS compatible
Additional Parts: comes with rear pipe & manifold
RT adapter: Ofna TRX Engine Backplate (OFN50007)
SB adapter: Non Pull Start Rear Engine Back Plate (RBC01901-323210)
Non PS version: none

Model: Picco .26 MAX
Mount: requires OFNA engine mount
Starting System: EZ or PS compatible
Additional Parts: comes with pull start
RT adapter: Ofna Picco .26 Max Engine Backplate (Roto-Start)(OFN50010)
SB adapter: unknown
Non PS version: none


Model: Sirio .27 (S27RE)
Mount: provided
Starting System: EZ or PS compatible
Additional Parts: comes with mount & manifold
RT adapter: unknown
SB adapter: unknown
Non PS version: none