4shizzle

Hey... i have one of the old t-maxxes and i was thinking about upgrading to the 2.5 engine. Then i saw that you guys didnt really recommend the 2.5 engine. So what should i get and is there any other conversion kit needed for the old t-maxx? Thanks
Rick

sirio_smaxx

sirio makes a direct replacement engine for the old maxx's im not sure on the price but its cheaper than a conversion kit

4shizzle

thanks for the help but i was looking to put a bigger engine in it like the 3.0. do they make anything for that??

wadesie93

My Feedback: (11)

XTM .21 big block kit you can get them on ebay for about 125.00 and then you get an big block you want. I converted my 2.5 and I like it.

chase044

My Feedback: (1)

hobby people sells the xtm .21 conversion kit for $120 and when its on sale wich is every month its on sale for $89.99. i got mine during a sale so i saved alot of money$$$. the xtm kit is a very good kit. i like it. any .21 would be good but if you want a good engine the p2 is a dirrect drop in for the 2.5 so all you would need is a motor mount i think. but with a big block engine be prepared to complain about how weak the trany is and how weak the diffs are then you'll have to upgrade them. ue sells the diffs and trany parts that you will need. but they are very pricy. i am trying to find a diffrent company that sells the parts for cheaper.

sirio_smaxx

sirio makes the 3.0 to drop right in

4shizzle

and your sure those kits are made for the OLD t-maxx .15???

basher314

i have an old style t-maxx too. i was thinking about putting in the 2.5 but i was tight on cash so instead i got the XTM .18 and its cheap conversion kit, it ended up being expensive a the 2.5 alone. it has tons of power and i very user friendly. i highly reccommend it

wadesie93

My Feedback: (11)

RRP I have been very happy with their stuff as far as gears.

buggycrazy

I am surprised you havent upgraded yet. I mean the TRX 2.5 isnt that expensive and not that hard to put in!

RCautohouse

I have two old school T-Maxx's and I was curious what engine would be a good upgrade but would not put strain on the transmission.

Nelson

jschevy01

My Feedback: (1)

I have put a new post out on the T-Max I have had for about 1 season.. (Should of read this first I guess) New to the T-Maxx truck. It has the 2.5 and I now see I am not the only one fighting with the tuning of this engine?? Is that an understatement..Well what is the best fix, without having to replace half the drive train, but yet still givin you plenty of power?

mgreen

I got the Dynamite .21 conversion kit, OS .21 motor, MIP CVD's and abunch of RRP stuff along with Maximizer Diff-cups and Integy diff-case. I have no more trans problems, but it cost alot. Its allot cheaper than UE parts.

jschevy01

My Feedback: (1)

Sounds like you upgraded a lot more stuff then I am looking to do right now.. Is there a direct engine swap to get rid of the 2.5 it comes with? Or can the engine be tuned to run reliabily? If so..How[>:]

chetscc

Yes the engine can be tuned, but it will take probably take 1.5 gallons of nitro to complete the entire break in. Traxxas says 5 tanks, but I really noticed a difference around 1.5 gallons. My TRX 2.5 now holds a tune and runs great. I have noticed that the settings on my carb are quite a bit different then that of the recommended traxxas breakin settings.

I thought I had wasted $500.00 on a truck up until approx. 1.5 gallons of nitro had been used. Then it came alive, and now I would not trade it.

jschevy01

My Feedback: (1)

I think I am going to spend money to have somebody at the hobby shop tune it and try to watch and learn something..
Thanks for the feedback...