Hi all simple engine question
 

This is my T-MAXX i was told it was a 2.5 in a 3.3 chasis with the larger and stronger parts (drive train). I want to put a 3.3 in it,anyway the guy at Traxxas said it's a pro .15.i want your opinions cause i looked at the pro .15 and this looks identical to the 3.3 just a bit smaller bore same block and a little smaller head.What is your thoughts? I hope these pix turned out ok cause my cam is a piece of you know what.Thanks.

RE: Hi all simple engine question
 

its a 2.5R. I like that motor... it keeps your wheels on the ground.

And yes those are good arms..... RPM!!!

RE: Hi all simple engine question
 

Thank you,i knew he just wanted me to buy parts that are un needed.So a 3.3 will drop right in it right?

RE: Hi all simple engine question
 

yeah it will drop in fine. You may need to upgrade some of your drivertrain though. The 2.5 stuff wont hold up too long. THat is what i am going through right now on one of my 2.5 maxxes that i put a 3.3 in.

RE: Hi all simple engine question
 

yes, a 3.3 will drop right in just fine without any modifications to the chassis or engine mount...:)

RE: Hi all simple engine question
 

Thanks,that's what i figure cause the drive lines alone are like 3x's the size of a round pencil.I think it origanly had the 3.3 and after the deal was done dude yanked it and droped the 2.5 in it,wich is ok cause i didn't care,so he did tell me it is a 2.5.But it is all up graded to handle a 3.3.

RE: Hi all simple engine question
 

is the tranny grey or black.... If it is grey it has the new 3.3/2.5R tranny that is good.... if it is black it is the older crap.

All my trannys are black :(

RE: Hi all simple engine question
 

Oh shoot the tranny is old school black.It's old it has reveverse but i discionnected it.Any more detailes would be greatly appriciated.Thanks,i do apologigige for my spelling.I'm a feather weight boxer and got my a ss whooped,so i got to go and get a few stiiches in, Swear on my cats life,man dude got the best of me FUUUUUUUUCC. HeY IT HAPPENS

RE: Hi all simple engine question
 

I would be careful about ur use of the "F" word there man; if the mods see it; or it gets reported by someone; u may get warned about it...just something to keep in mind...

now back to the topic at hand....well even if its a old skool trans; it should still work fine assuming all the gears inside are still in tact and whatnot....

RE: Hi all simple engine question
 

You tell him to watch his language, And then you you leave it in your quote.... :eek:

RE: Hi all simple engine question
 

Hey Nice A-arms RPM Real nice!!!!LOL and is far as ur motor it looks like a 2.5R or a regular 2.5 like mine but upgraded cooling head IDK but as far as the 3.3 in there wold be CRAZY but awesome!!![X(]

RE: Hi all simple engine question
 

+1!!; that was kinda my thoughts as well on this one....

RE: Hi all simple engine question
 

Yeah i'm thinking leave the 2.5 in,i mean why put a 3.3? It goes just as fast but doesn't keep up due to the 3.3 over powering it with torque.Lets face it all the 3.3 is the same block same block different..So to to the slighty larger 3.3,2 dfferencas,(1) larger bore ((and stroke).Mine with the 2.5 can spin around on black top,on 3 wheels.

RE: Hi all simple engine question
 

Well then, in this case I guess if it ain't broke, don't fix it; I mean I guess if the 2.5 suits u perfectly fine and it still runs and performs good enough for ya, then why spend the $ to upgrade to the 3.3? I mean that is unless u really do at some point change ur mind and do want a little more power....at that point I would say go for it; but for now, just stick with what u have...:)

RE: Hi all simple engine question
 

If you were to put a 3.3 in there don't upgrade the drivetrain until something breaks. When I put my Sirio .23 in my S-Maxx 5 yrs ago it took a while for the rear diff to go out and then every once in a while the axle shafts would snap and that's all. And I know the 3.3 isn't nowhere nearly as powerful as the Sirio .23