nitro or nothin

Received my modified Mito 7 from TNS, it's a beast! Question I have, what would be the effect of running with NO carb insert?
I'm not concerned with fuel economy, just as long as it holds a tune. I know I could simply experiment, but I thought I'd throw this out anyway.

bash bros

iTrader: (2)

I've never tried it so I won't bother guessing what the results would be, but if you want silly top end you could also try a larger venturi like 8.5 or 9mm

BiLL77

iTrader: (4)

I would think no insert would give you better top end IF you could get the tune right, but throttle response and bottom end would be horrible.

Roelof

I have raced many times onroad w/o an insert, does not feel differen than with a 9mm insert. The hole in the carb is with onroad 9mm, If it is also 9mm with the offroad carb then yes, you can have lots of power and if you do not use it right a bad milage.

Maximo

iTrader: (11)

I sent that engine with a custom drilled carb insert.....you should be good to go

removing insert affects the tune and how the engine comes up off idle.... you are definitely better off with a insert then without

nitro or nothin

Hi Neal, that's why the 5.48mm insert is more like 8mm or so. I was scratching my head trying to figure this out, and thanks for the tip.
Fwiw, I took the insert out and re-tuned yesterday. Had to richen the high end substantially, and power became difficult to manage. The engine was more of an off/on switch, with "on" being a ridiculous amount of power and very hard to handle on a loose surface. Your drilled insert is going back in as we speak, and I'll re-tune when I get back out, then I will leave well enough alone.

BTW, love the engine Neal, you will be my source for the foreseen future. Thanks

Maximo

iTrader: (11)

Its a little over 8 mm....I have been drilling the inserts on all my engines lately....

and yes you will lose power down low with no insert, then you will get a big surge towards the midrange...

nitro or nothin

I re-installed the drilled out insert, and re-tuned. I like the power delivery much better. The bottom end is stronger, and spools up quickly when asked to.
Very drivable now, but gobs of power when needed.