Is there any way to learn nitro engine modding?
#1
Is there any way to learn nitro engine modding?
It seems like an(understandably) black art. I think I'd enjoy it, but there is almost no way to learn about it.
Tools of the trade, where and why to cut, grind, drill out. There are no real explanations of "porting work". It all seems very vague.
Do modders just start out with a dremel tool and grind things away to see what they do? Is it a trial and error process or are there basic guidelines?
Thanks in advance.
Tools of the trade, where and why to cut, grind, drill out. There are no real explanations of "porting work". It all seems very vague.
Do modders just start out with a dremel tool and grind things away to see what they do? Is it a trial and error process or are there basic guidelines?
Thanks in advance.
#2
#3
It seems like an(understandably) black art. I think I'd enjoy it, but there is almost no way to learn about it.
Tools of the trade, where and why to cut, grind, drill out. There are no real explanations of "porting work". It all seems very vague.
Do modders just start out with a dremel tool and grind things away to see what they do? Is it a trial and error process or are there basic guidelines?
Thanks in advance.
Tools of the trade, where and why to cut, grind, drill out. There are no real explanations of "porting work". It all seems very vague.
Do modders just start out with a dremel tool and grind things away to see what they do? Is it a trial and error process or are there basic guidelines?
Thanks in advance.
Tyler
#6
#8
Tech Prophet
iTrader: (96)
when you get it right , you just get it right
and remember what you did to get it right
you can "calculate" all you want but there is no and i mean no substitute for actual hands on , learn as you go common sense applied tuning. once you get this down then transfer your work into measurements that make sense
good luck ,
monty
and remember what you did to get it right
you can "calculate" all you want but there is no and i mean no substitute for actual hands on , learn as you go common sense applied tuning. once you get this down then transfer your work into measurements that make sense
good luck ,
monty
#11
Porting
These nitro motors are similar in design to two stroke engines. (IMHO closest to a rotary valve two stoke) Might want to read some two stroke stuff by Gordon Jennings or A. Graham Bell. I've used software to help a little. tsrsoftware.com also their is a program out their called bimotion which is pretty quick in helping figure out duration. Calculator works too. At the minimum you'll need a good set of calipers, measuring tools are a must. Once you start modding timing and duration are calculations that are very helpful. (Yes, blowdown and port area and etc. are important too, duration is a must.) You can get cutting tools at ccspecialtytool.com. Really anything you can cut/grind with will work. If you spend the time to learn all this stuff you can get a good understanding of how porting works. If your learning document what you've done and how it effects the motor. (I.E. raised the main exhaust port .5mm = more RPM at the cost of a little low end and etc.) Their are things you'll have to watch out for, making sure you don't open up a trasfer and it flows into the exhaust port casting and etc. (Working on Nitro engines a lot of times the engine exhaust casting is bigger than the sleeve) To learn all this stuff is going to take a lot of reading and in the end hard work. It can be done though. If your doing it for fun you'll enjoy it. If your doing it to save $100.00.... LOL.. Spend the money. Personally I wouldn't properly mod a motor for somebody for $100.00.
#12
Yeah, just for fun. I have no intentions of starting a business or anything. I like to learn everything I possibly can about the things I enjoy.
Many thanks for the tips.
Edit: I was thinking of just buying a couple piston/sleeve combos for a Go-Tech engine I've got, and going trial and error on them.
Many thanks for the tips.
Edit: I was thinking of just buying a couple piston/sleeve combos for a Go-Tech engine I've got, and going trial and error on them.
#13
Tech Rookie
First I would say do you need a mod? If so what engine how old and what could be done. first you can use a tool like a air plane prop they work really well for load. then blue print the engine in degrees intake ex port case boost transfer timeing #s etc. then what could be done top low end mid etc. fuel and run time is very much a hard fought learning curve. take your time with no guess work. take notes and good luck Sean Smith
#14
#15
Tech Addict
I have found that engine design is the key to performance, almost anything you do is going to be a trade off.I have seen mx bikes with the transfer ports filled with epoxy... why??? IDK. Probably takes away bottom end grunt and replaces with power in the upper ,,,,or vice versa???? The guys that mod these engines need to know what you are looking for the engine to do before they mod it. I personally am running a v-spec 21 and I can't even begin to think of modding it. Maybe I am not good enough to know the difference, but I really love this hobby and I know the pro's need these modded engines, Very interested in learning this stuff though!