I dropped 3.3 cranks in both my 2.5R's as per your info in an earlier video and the results were quite a noticable improvement. You've never steered us wrong. Cheers!
I did that modification to my crankshaft in my Rossi 12 motor and I also opened up the sleeve a lot… my RC10gt never lost a drag race. I also have those foam tire on it.
My Northern Brother. Thanks for the wildfire smoke hitting the assholes on the other side of My country. Keep up the good work! My Traxx is running great. 😁👍
i put a 3.3 in my rustler that came with a pro15 didnt need a kit turned the throttle servo around and got a brake lingage just a bit longer works fine
Literally pulled my hair out over a backwards inserted piston. It ran but only at certain throttle ranges. Had to think about it for a while about why it goes that way😂 💀
Hi there, man but you sound like another rc engine guy on UA-cam and I like him just as much as I like you, lol 😊 nice video man.😮 I do the same thing with my oil filter’s.
Sirio used to make some beautiful engines. It’s a shame they don’t make engines anymore. The factory is still producing engines though so you can technically still get sirios just with a different name like bliss, xrd, boss, or schepis model. Adrien Bertin who was a pro driver for sirio (and ifmar world champion in on road) just came out with his brand of engines Corsatec which are sirio based, but he designed them with his own timing numbers and everything so they’re not like any of the other sirio based engine in terms of performance, but the material quality and everything is still the same
They are awesome engines and yet kind of sucks that you can't get parts with them half the time or the waiting is ridiculous especially over here Basically all the Italian manufacturers are impossible to get parts here for half the time
It’s called a low tolerance to b/s bro and you video was good , I sent u a link to a dusty pro 21 that I’ve had recently think it was in ur last video the comment with link
I enjoy watching your rebuild videos. I have a pretty bad pro .15 that rusted and stuck bad. I’d love to send it to you maybe you can make a revival video and hopefully get it going again. If you have a PO Box I can send it to let me know.
did look like u may be able to mimic the bigger port on the old 3.3 crankshaft if u open it up by milling/grinding avay some material. they seemed pretty similar exept the opened up port and removed material to rebalance it.
I have a 3.3 loses compression on high-end runs great on low for just running around the yard should I just replace the piston sleeve and the piston what do suggest thank you very much your videos are great
Great vids as usual :) Question, where are you buying your nitro fuel from on the mainland? How much do they want for 30% nitro? I'm having some issues with getting it shipped to me on Vancouver island. Thanks man
Rc pit stop in Langley usually Go go hobbies In Coquitlam has a whole bunch and I think it's around $60 for 30% i believe As far as shipments go I'm not sure how that works
People are stupid bro! Always pre oul your oil filters. And any new metal car part or engine component brake clean it to get factory coatings or protective oils off then put proper clean lube on
@@thebug4046 Hopefully one goes up for sale in the future. If not then I'll probably just buy a 3.3 crank. 2.5 doesn't do it for me anymore after being spoiled by other engines.
@@Albertotron Well now that you have the part number just keep that handy and search every so often especially in the RC sales groups you never know but for now just spend the 28 bucks and buy a 3.3 grand can swap it out it does make a difference in the way it runs you will be happy with it I promise Especially if you run with a good 30% fuel
@@Albertotron if you live in the USA it's cheap. In Canada it's 40$ but still cheap then a sirio if you can find one or a RCR crank that the guy is asking 180$ Canadian for and it looks like it was done on a drill press lol
I have a 2.5r in a nitro tc3, and a 2.5 in a nitro stampede. I have a spare 3.3 crank. Which one should get it? The stampede coupd use more torque, and the tc3 could use more rpm to hit second gear more reliably.
Exact same engine just a blue cylinder head. All parts and part number are the same between the two all though Traxxas says the 2.5R makes more power when infact it doesn't lol
These ones sadly are no longer made. and don't go through that RCR guy he's a hack job get a hold of RB mods he's doing engine stuff again and actually knows what the hell he's doing for a whole lot less money send him a brand new 3.3 crank. Rb Mods is in the Nitro RC enthusiasts group on Facebook 🤘🏻🍻😎
I recently got a revo 2 5r that sat for over 10 years. Did some cleaning. Got it running but after about 10 mins off running, she shuts off and needs new glow plug..bad tune? Losing compression ? Worth a rebuild or just buy the 3.3
@thebug4046 I have taken it apart and seems to have good pitch based off your videos but I'm sure something is wrong bc that's what it does. Also is filing glow plug during that process, the plug seems and looks good after that happens but light on the lgnitor
JRC on eBay has really good prices. If you are doing a 2.5 grab piston and sleeve pin rod bearings and a 3.3 crank. If you live in the United States you can probably get that whole engine new for like $80 and then just buy a 3.3 crank to put in it
@@thebug4046 Yeah I missed out. Anyway I wanted to ask you something, do you know about the Kyosho GXR18 rod fitting the 3.3? Someone mentioned its an upgrade for the 3.3 but I can't find any information to back that up.
@@331fox. no worries. Some people say they make a big difference Some people say not as much as they were hoping for. But you can be the judge of that if you decide to get one. Also replace the rod wrist pin and bearings when you're at it.
3.3 will always have more power but some people want a little more out of the 2.5 without spending more on a 3.3 or whatever but it's definitely a nice easy hop up 😎🍻💯
@@kavonroberts4724 the 3.3 crank in the 2.5 will give it more in the mind range and up top. If you want torque buy a bigger engine and yes you will notice it wakes up over stock. Especially if you have a good pipe and fuel
@thebug4046 what pipe you recommend running and would I need to swap transmissions if I was to put a 3.3 motor in my 2.5r tmaxx? And thank you for all the tips!!
@@kavonroberts4724 no transmission swap required the 3.3 is i direct fit. And i have a Ritter pipe on my tmaxx at the moment. If you can find an aluminum tuned pipe even the aluminum Traxxas tmaxx pipe is better then the plastic one
@@kennybowers7607 Lucky guy I will say to order the 3.3 or 2.5 carb boot for your 3.4 carbs makes them slide and move a whole lot easier! But yes both will work on either 2.5 or 3.3 engines it's quite the improvement definitely much better tuning and performance as well as Throttle response
![Savage X- Seized Piston ([FiXeD])](http://i.ytimg.com/vi/9rLqceT3L-4/mqdefault.jpg)
I dropped 3.3 cranks in both my 2.5R's as per your info in an earlier video and the results were quite a noticable improvement. You've never steered us wrong. Cheers!
Glad it helped ya! And yes a lot of people don't think it will do anything till they try it they they see just how much better they run lol
I did that modification to my crankshaft in my Rossi 12 motor and I also opened up the sleeve a lot… my RC10gt never lost a drag race. I also have those foam tire on it.
Nice
My Northern Brother. Thanks for the wildfire smoke hitting the assholes on the other side of My country. Keep up the good work! My Traxx is running great. 😁👍
My apologies do it it's so bad over here right now
Well at least you started out with the proper tool “PBR” 🤣
Haha only way to fly brotha 😎 💯👌🏻
Helpful and interesting!
Thanks for watchin! 🍻
i put a 3.3 in my rustler that came with a pro15 didnt need a kit turned the throttle servo around and got a brake lingage just a bit longer works fine
Literally pulled my hair out over a backwards inserted piston. It ran but only at certain throttle ranges. Had to think about it for a while about why it goes that way😂 💀
Hahaha shit happens! I have seen it so many times
Hi there, man but you sound like another rc engine guy on UA-cam and I like him just as much as I like you, lol 😊 nice video man.😮
I do the same thing with my oil filter’s.
And who would that be? Lol
Love your videos keep up the good work🤣🤣🤣
Sirio used to make some beautiful engines. It’s a shame they don’t make engines anymore. The factory is still producing engines though so you can technically still get sirios just with a different name like bliss, xrd, boss, or schepis model. Adrien Bertin who was a pro driver for sirio (and ifmar world champion in on road) just came out with his brand of engines Corsatec which are sirio based, but he designed them with his own timing numbers and everything so they’re not like any of the other sirio based engine in terms of performance, but the material quality and everything is still the same
They are awesome engines and yet kind of sucks that you can't get parts with them half the time or the waiting is ridiculous especially over here Basically all the Italian manufacturers are impossible to get parts here for half the time
It’s called a low tolerance to b/s bro and you video was good , I sent u a link to a dusty pro 21 that I’ve had recently think it was in ur last video the comment with link
Hey man I clicked on that link and it didn't work I don't know what it is well UA-cam and sending links it's freaking impossible sometimes
I enjoy watching your rebuild videos. I have a pretty bad pro .15 that rusted and stuck bad. I’d love to send it to you maybe you can make a revival video and hopefully get it going again. If you have a PO Box I can send it to let me know.
Hey Man that sounds awesome I'm in the Nitro RC enthusiast group on Facebook the Admin and dark sunglasses smoking.
did look like u may be able to mimic the bigger port on the old 3.3 crankshaft if u open it up by milling/grinding avay some material.
they seemed pretty similar exept the opened up port and removed material to rebalance it.
Oh yeah for sure if you threw a mic on it and got some measurements I just don't feel like taking it apart all over again to do that
oh man that thing is gonna be a screamer
I think so!
I have a 3.3 loses compression on high-end runs great on low for just running around the yard should I just replace the piston sleeve and the piston what do suggest thank you very much your videos are great
If it's lost on compression when hot shuts off and won't start till cool time for a rebuild
Great vids as usual :) Question, where are you buying your nitro fuel from on the mainland? How much do they want for 30% nitro? I'm having some issues with getting it shipped to me on Vancouver island. Thanks man
Rc pit stop in Langley usually Go go hobbies In Coquitlam has a whole bunch and I think it's around $60 for 30% i believe As far as shipments go I'm not sure how that works
Nice nice
Thanks man
People are stupid bro! Always pre oul your oil filters. And any new metal car part or engine component brake clean it to get factory coatings or protective oils off then put proper clean lube on
Nice video! Ha and I always fill my oil filters first!!! 😅 Also do you know if the os 21tm needs a no.5 ball link for the revo?
I'm not sure but I see a lot of people run them in a revo
Thanks eliminator rc up there in Canada says it dont work but amain says it's required for revo!
Love your content right on point.See you on the next one.✌
Thanks for watchin!
Son of a bitch... The last one on ebay just sold today. Wish I knew about this crank earlier
Shit that sucks man
@@thebug4046 Hopefully one goes up for sale in the future. If not then I'll probably just buy a 3.3 crank. 2.5 doesn't do it for me anymore after being spoiled by other engines.
@@Albertotron Well now that you have the part number just keep that handy and search every so often especially in the RC sales groups you never know but for now just spend the 28 bucks and buy a 3.3 grand can swap it out it does make a difference in the way it runs you will be happy with it I promise Especially if you run with a good 30% fuel
@@thebug4046 Oh damn, I didn't know the 3.3 crank was that cheap. Thought it'd be more. Think I'll do that then. Thanks!
@@Albertotron if you live in the USA it's cheap. In Canada it's 40$ but still cheap then a sirio if you can find one or a RCR crank that the guy is asking 180$ Canadian for and it looks like it was done on a drill press lol
Nice looking Crank Swap. ❣ As far as you can tell, is the induction port position/timing the same as the original crank? Thanks for the vid Bug
It's a lot wider by the looks of it. I haven't Measured it but definitely more then the 3.3 crank
Make sure you don’t split that rod in half! With all those mods done to it it’s gonna be a little screamer lol
The 2.5s don't usually kick the rods out as much as the 3.3 but I have a fix for that should be here soon. Haha
I have a 2.5r in a nitro tc3, and a 2.5 in a nitro stampede. I have a spare 3.3 crank. Which one should get it? The stampede coupd use more torque, and the tc3 could use more rpm to hit second gear more reliably.
It makes the power come on earlier and gives more RPM up top. It helps everywhere.
Is there really any difference from a trx2.5 vs trx2.5r? They look exactly the same internally.
Exact same engine just a blue cylinder head. All parts and part number are the same between the two all though Traxxas says the 2.5R makes more power when infact it doesn't lol
are the 2.5s marked with an R My buddys they are i didnt think so i thought the difference was a b igger cooling head and just marked 2.5
Only difference is a blue cylinder head
Are those cranks worth it they look wicked im looking at rcr crank for my 3.3
These ones sadly are no longer made. and don't go through that RCR guy he's a hack job get a hold of RB mods he's doing engine stuff again and actually knows what the hell he's doing for a whole lot less money send him a brand new 3.3 crank. Rb Mods is in the Nitro RC enthusiasts group on Facebook 🤘🏻🍻😎
I recently got a revo 2 5r that sat for over 10 years. Did some cleaning. Got it running but after about 10 mins off running, she shuts off and needs new glow plug..bad tune? Losing compression ? Worth a rebuild or just buy the 3.3
If it runs fine for a while then shuts off and won't start till it's cool again is the sign of a warn out piston
@thebug4046 I have taken it apart and seems to have good pitch based off your videos but I'm sure something is wrong bc that's what it does. Also is filing glow plug during that process, the plug seems and looks good after that happens but light on the lgnitor
Won't light up on ignitor
@thebug4046 worth a rebuild or just 3.3 the thing? Parts alone in USA get to costing about what a motor new is..
@@damonbridgmon7199 in that case go new 3.3
Where do you suggest I get a rebuild kit for the 2.5?
JRC on eBay has really good prices. If you are doing a 2.5 grab piston and sleeve pin rod bearings and a 3.3 crank. If you live in the United States you can probably get that whole engine new for like $80 and then just buy a 3.3 crank to put in it
@@thebug4046 thank you for the response! You think eBay is the best place for a new engine all together also?
Thank you!
So how would this shaft do in a modded 3.3?
Really good.
@@thebug4046 Yeah I missed out. Anyway I wanted to ask you something, do you know about the Kyosho GXR18 rod fitting the 3.3? Someone mentioned its an upgrade for the 3.3 but I can't find any information to back that up.
@@revtech2917 that's a first for me to. I haven't heard anything about it. Would be interesting to find out if that is true.
You ever run a rcr mod crankshaft if so was it any good
For what he is asking he can keep it. 150$ Canadian and barley anything done to it. If you can get one cheap enough go for it
Thank you
@@331fox. no worries. Some people say they make a big difference Some people say not as much as they were hoping for. But you can be the judge of that if you decide to get one. Also replace the rod wrist pin and bearings when you're at it.
Would you recommend doing this for an upgrade for a tmaxx with a 2.5 r or is the 3.3 still faster and have more torque?
3.3 will always have more power but some people want a little more out of the 2.5 without spending more on a 3.3 or whatever but it's definitely a nice easy hop up 😎🍻💯
@thebug4046 does it give you any noticeable torque or speed gains or just makes engine run stronger ?
@@kavonroberts4724 the 3.3 crank in the 2.5 will give it more in the mind range and up top. If you want torque buy a bigger engine and yes you will notice it wakes up over stock. Especially if you have a good pipe and fuel
@thebug4046 what pipe you recommend running and would I need to swap transmissions if I was to put a 3.3 motor in my 2.5r tmaxx? And thank you for all the tips!!
@@kavonroberts4724 no transmission swap required the 3.3 is i direct fit. And i have a Ritter pipe on my tmaxx at the moment. If you can find an aluminum tuned pipe even the aluminum Traxxas tmaxx pipe is better then the plastic one
Bug Losi 3.4 or O.S. 11k work on the 2.5r?
Both will but the losi 3.4 carburetor is long Out of production
@@thebug4046 I have 2 used like new and one new in Pack plus two O.S. 11k carbs new in package
@@kennybowers7607 Lucky guy I will say to order the 3.3 or 2.5 carb boot for your 3.4 carbs makes them slide and move a whole lot easier! But yes both will work on either 2.5 or 3.3 engines it's quite the improvement definitely much better tuning and performance as well as Throttle response
Common sense is the least common of all sense's, going to be nasty!!!!!!
Ain't that the truth haha