You really remember me at your age working with my Tmaxx. Is increible this platform still giving good times to younger generation. Im 35 and still running my tmaxxes:-) Problably you know but one of the cofusing things about the stock 2.5 + carbs is that the low speed needle move at the same time you turn the idle screw. My suggestion is try to play with both low speed needle and idle screw at the same time, you have to get the air ( idle screw) and low speed fuel mixture balanced to get a low idle and very good throttle response (Wheelies). Remember high speed needle have to be set first to then play with low neddle and idle screw. I alway set high speed needle depending of : engine response at the high end , amount of smoke out of the pipe and engine temp. Ones you have the carb properly balance you only have to open or close high speed needle depending on weather condition.
Hey just wanted to say I've started to watch you lately and your doing great my only advice to you is only touch one needle at a time and I between adjustments you really need to clear out the motor do like 5 laps and then adjust again but good work man
Great video as you said. I can't go to stick to the power up program for the engine yet to much work at night shift. I hope to do it this week. Go fast
I had the same issues with the Trx carb i installed the O.S. 11K and solved all the problems. I can adjust mixtures and it actually makes a difference in performance. Sometimes i cause the idle to still race when you let off but im mess around with the mixtures a bit more.
Awesome videos !!! You have been making me rebuild my tmaxx because of them. What hump pack are you running ? Need something to fit under the cover like yours
@@MannyGunzz you can as long as you have high voltage servos. Most servos in rtr cars run at 6 volts. You want to double check to see if your servos will operate at 7.4 volts
Stock carb problem is it cant hold a tune and quality isn't as good as the losi most likely, but what also made a difference for me was glow plug itself i ordered some o.s lc4 and a colder plug to experiment with run quality and ohh my was there a difference and this with stock carb, something to think about along with losi carb which is on my list next after my servo's are replaced not a month old and steering servo went out smh, truck has been out 10yrs or more you would think this wouldn't be a problem within 1 month of owning it !!!
Hey bro I have a question for you I have a T-Maxx 2.5 it is brand new I've only put one tank of gas through it when I push the throttle forward it like hesitates meaning like if it's jerking a little bit what is causing this
I love the video and advise if you would please do a video on tire sizes and what gear set ups to do with them I don't know much about the gear ratio on the tmax nitro
@@GoFastRC hell Yeah!! Im go try it now then the Trx 2.5R in my option is slightly better then the 3.3 even tho its in every nitro model Traxxas makes.
@@GoFastRC i installed the OS 11K and it fits just the same as it does in the 3.3. Only problem and even with the Shitty plastic carburetor. Is the idle gap is open enough to make the idle high. So im hoping that spring will help.
Might wat to lean your idle, either that or you low speed is super lean and its acting rich. Does it smoke when you give it full throttle from a stop or is there not a lot of smoke?
The Losi carbs really wake up the 3.3 BUT they are very poorly made. Best carb I would recommend is the os 11k or sts carb. It’s what I have on my Tmaxx. It’s also supercharged 🤪it’s a wheelie monster
Get rid of that junky top fuel. Definitely see gains if you switch to a better fuel. Another mod you could do is put a 3.3 crank in that 2.5 and it’ll wake it up even more.
This guy makes solid videos n skillful at tuning.
You really remember me at your age working with my Tmaxx. Is increible this platform still giving good times to younger generation. Im 35 and still running my tmaxxes:-)
Problably you know but one of the cofusing things about the stock 2.5 + carbs is that the low speed needle move at the same time you turn the idle screw. My suggestion is try to play with both low speed needle and idle screw at the same time, you have to get the air ( idle screw) and low speed fuel mixture balanced to get a low idle and very good throttle response (Wheelies). Remember high speed needle have to be set first to then play with low neddle and idle screw. I alway set high speed needle depending of : engine response at the high end , amount of smoke out of the pipe and engine temp. Ones you have the carb properly balance you only have to open or close high speed needle depending on weather condition.
Nice! Yeah i had my high set before i set my low and idle. Wanted to get it shifting before i did anything else. Appreciate the tips!!!
Hey just wanted to say I've started to watch you lately and your doing great my only advice to you is only touch one needle at a time and I between adjustments you really need to clear out the motor do like 5 laps and then adjust again but good work man
The Tmaxx 2.5 transmission had that glitchy response when it was idling at a specific rpm. To answer your question from a prior video.
Great video as you said. I can't go to stick to the power up program for the engine yet to much work at night shift. I hope to do it this week. Go fast
On my 3.4 losi carb the throttle arm is to short so wont go on my slayer pro .the fork is to thick
I was thinking that because I wanted a low idle because like you said you can everything and it still idles high
I had the same issues with the Trx carb i installed the O.S. 11K and solved all the problems. I can adjust mixtures and it actually makes a difference in performance. Sometimes i cause the idle to still race when you let off but im mess around with the mixtures a bit more.
Awesome! Just got my new revo in, now just have to wait for the now to go away to run it. :(
Damn that sucks, at least you got one, had to wait 6 months for mine 😭😭😂
Awesome videos !!! You have been making me rebuild my tmaxx because of them. What hump pack are you running ? Need something to fit under the cover like yours
I got a dynamite 1800 mah hump pack i think. I know its a dynamite but i dint remember the mah. Get that tmaxx running again!
Can I run a small 2s lipo instead of hump pack? I have one that's small enough for battery box@@GoFastRC
@@MannyGunzz you can as long as you have high voltage servos. Most servos in rtr cars run at 6 volts. You want to double check to see if your servos will operate at 7.4 volts
Awesome, nice carb and cool run
Stock carb problem is it cant hold a tune and quality isn't as good as the losi most likely, but what also made a difference for me was glow plug itself i ordered some o.s lc4 and a colder plug to experiment with run quality and ohh my was there a difference and this with stock carb, something to think about along with losi carb which is on my list next after my servo's are replaced not a month old and steering servo went out smh, truck has been out 10yrs or more you would think this wouldn't be a problem within 1 month of owning it !!!
Hey bro I have a question for you I have a T-Maxx 2.5 it is brand new I've only put one tank of gas through it when I push the throttle forward it like hesitates meaning like if it's jerking a little bit what is causing this
That is normal. Its the clutches in the transmission that are grabbing. The truck uses a clutch system to go forward and backwards.
@@GoFastRC so I ordered a forward-only will that take it away
@@sambo6591 yup!! It makes the truck run way better and gets rid of that cogging thing. I have a video on it.
@@GoFastRC thank you so much for all your help
I love the video and advise if you would please do a video on tire sizes and what gear set ups to do with them I don't know much about the gear ratio on the tmax nitro
Where the hell did you even get one at I can't find 1 anywhere they're out of stock everywhere and discontinued
I got mine off amazon.
@Go Fast RC none left and the message don't know if will ever be available
@Go Fast RC no ebay no horizon hobby
@@brianf3146 damn that sucks, i guess i got lucky
Question brother do you know what idle gap you go with for best tuning
1 mm
0.7mm
Or 0.5 mm
What would you say your gap is set to
Where did you find the carburetor? they seem to be sold out and discontinued everywhere
I actually got mine off of amazon it said there was a few more in stock, maybe try there.
I wonder if O.S 11K carburetor will fit the 2.5/ 2.5R i figure if it fits the 3.3 it should fit the 2.5 since both use the same carburetors.
Yeah it should fit it.
@@GoFastRC hell Yeah!! Im go try it now then the Trx 2.5R in my option is slightly better then the 3.3 even tho its in every nitro model Traxxas makes.
@@GoFastRC i installed the OS 11K and it fits just the same as it does in the 3.3. Only problem and even with the Shitty plastic carburetor. Is the idle gap is open enough to make the idle high. So im hoping that spring will help.
I need to replace a 3.4 carburetor, what is a good option?
OS11k is the next step up 💪
Awesome man. That carb makes a difference for sure. Pick you up a os 21tm if you ever can. World of difference in quality compared to a 3.3!
Yeah i was wanting to put that in my revo one of these days. My dad has on in his tmaxx and it has so much low end, wheelies for days!!
Sorry new to nitro. Difference between os 11k and 21tm? Would be going on a 3.3 inside a 2.5 truck.
Sick bro 🚗 🔥
Appreciate the comment!🔥🔥🔥
I just bought a t maxx 2.5 it’s running rich I lean it a little and it won’t idle any suggestions
Might wat to lean your idle, either that or you low speed is super lean and its acting rich. Does it smoke when you give it full throttle from a stop or is there not a lot of smoke?
Will this better bigger carb wear out the engine fast??
No it wont, the tune and how you maintenance the engine can wear out the engine faster.
Yo can you help me the transmission settings are please?
Is that a 3.3 cooling head on your 2.5?
Its is a 2.5r engine. Its gotta blue cooling head and it makes a little more power. Idk if its true, but i do know the 2.5r is a good engine
The Losi carbs really wake up the 3.3 BUT they are very poorly made. Best carb I would recommend is the os 11k or sts carb. It’s what I have on my Tmaxx. It’s also supercharged 🤪it’s a wheelie monster
What servos u running
Get rid of that junky top fuel. Definitely see gains if you switch to a better fuel. Another mod you could do is put a 3.3 crank in that 2.5 and it’ll wake it up even more.
COOPER KUPP!!!!!!!!!!
can't find 3.4 carbs anywhere!. the .21 tm engine I think is garbage. had one and wasn't much more power full. novarossi or Lrp
What settings are you using for HSN and the LSN?
Tbh idk. Its really depends where you are at. Everywhere is a little bit different.
Can't wait
I just got a 3.3 nitro and it is soo fun
get a resonator pipe and you don’t even need a carb upgrade bro
You can get it to idle just as low and just as good as the OS check out David RC‘s video he has one
Will it fit on my T max 3.3
Yeah it will fit.
What's up man
Supppppp how u been bro?