I think it's too fast for the kids

[Babb]

How fast does average dead axle go kart go?

 

[chancer]

25 On average

 

[Bbqjoe]

25 On average

Not if you put a cox .049 in it!

 

[OzFab]

How fast does average dead axle go kart go?

How long is a piece of string?

There's a lot of variables which determine the top speed of a kart; without knowing any of them, all we can do is give you an average; provide us with more info & let's see what we can work out...

 

[Babb]

How long is a piece of string?

There's a lot of variables which determine the top speed of a kart; without knowing any of them, all we can do is give you an average; provide us with more info & let's see what we can work out...

That's what I was asking was what the average kart does.

I know my kids will do 45 mph on the street and I added after market air filter and jet and changed sprocket, clutch and chain from 35 to 41. Sprocket is smaller than it was and clutch has less teeth. I was just wondering if this is above average?
i.e. Am I Tim the tool man tailoring it or shouldi t have been this fast anyway?

 

[ultralight01]

Meh. I built a kart to go 55. It's fast and fun, there's nothing wrong with speed as long as the driver is responsible and the kart isn't a hillbilly project. I'll probably end up buildignmambuggy that goes 90mph+ with a motorcycle engine. Average speed for a kart depends on engine type and budget,

 

[chancer]

I kinda doubt it does 45mph
Enter your info here :http://www.diygokarts.com/speed-calculator.html

You will have to guesstimate RPMs till you get to 45mph.
If you are over 5000 RPMs and not yet to 45mph, You will see my point.

 

[FreeRunner15]

Average?
6:1 is the average referred-to gear ratio.

so Around 20 to 25-30mph.
The Acceleration-Factor is a different story. Tire size and total weight. Of course the performance modifications made as well.

 

[bob58o]

I'd say 30 mph is about average.
45 is faster than an average yard kart I'd say.

45 is achievable with a 212cc, a light kart 16" tires, 6:1, a TC, and no gov.
Might need stage 1 mods

 

[chancer]

And 5700 RPMs!!

 

[bob58o]

And 5700 RPMs!!

Nope, did you forget about the 0.90:1 overdrive from the TC.

5400 RPM = 48 MPH (without slipping)

 

[chancer]

Nope, did you forget about the 0.90:1 overdrive from the TC.

5400 RPM = 48 MPH (without slipping)

I see nothing from the OP about a TC.

 

[bob58o]

Pretty sure your 5700 came from my made up 45 mph case where I said TC,
But any...

 

[chancer]

Ahh. I see the confusion. I was using the OP's 45MPH figure from post 5.

Yeah But any....

 

[Babb]

Yes it's only 35

 

[chancer]

They'll be Fine.