Devgru spring change

[SimonDJXC]

Hi,

 

I am running 0/28s and was wandering if anyone knows what spring would get me to about 300fps. I am currently at 250. Any recomendations?

[Colin Allen]

There are so many variables that it is almost impossible to say.  What spring is currently fitted?

[SimonDJXC]

i believe it was called an M something.... looking i think its the m100. next question is then will the mofset need upgrading as well?

[Hudson]

You don't want to beat 300 on 0.28s.

 

The 1.14J limit will be approximately 295fps.

 

Rather than opening the gearbox and swapping the spring, you'll probably be better off ensuring you have a good air seal, as well as bucking & barrel which should get you to what you want.

[SimonDJXC]

how do you ensure a good seal?

[Hudson]

Good bucking and barrel and ensuring it's all in place properly and snugly in the hop unit to start with, after that it means opening the gearbox up and getting good air nozzle/cylinder etc. parts

[Colin Allen]

3 hours ago, SimonDJXC said:

i believe it was called an M something.... looking i think its the m100. next question is then will the mofset need upgrading as well?

You need to get it up to about 280-290 fps (300 is hot!), which is a considerable increase and, if the current spring is an M100, is going to need at least an M110 spring.  However, assuming that the barrel and cylinder are properly matched, you may well have a poor air seal, which you would be well advised to sort out.  Give the inner barrel a good clean with isopropyl alcohol as well.

 

You don’t need to upgrade the mosfet just because you install a stronger spring.

Edited 1 hour ago by Colin Allen

[Galvatron]

1 hour ago, SimonDJXC said:

next question is then will the mofset need upgrading as well?

 

What feature do you think your current one is lacking that you need to upgrade it?