The solution for four-stroke 250s?

**B0000M** · 15th August 2010, 07:40

http://www.trademe.co.nz/Trade-Me-Mo...-309707705.htm

with one of these your bike might make some power!

or maybe not..

**schrodingers cat** · 15th August 2010, 08:24

I think by the questions they're fielding and the (thus far resonable) tone of the replies they know they've got a lemon.
The concept is sound but without some technical info why bother.

Might be a hoot on a grasskart engine. Doesn't matter if it flys to bits and roots the engine then does it?

**morg_nz** · 15th August 2010, 08:25

Originally Posted by B0000M

http://www.trademe.co.nz/Trade-Me-Mo...-309707705.htm

with one of these your bike might make some power!

or maybe not..

quite serioisly, there is not way a piddly electric motor could generate airflow anywhere near to, let alone exceed what the bike would induce through the air box naturally. all that will do is kill your power as it will be a massive block on any airflow into the bike. it may be use as a hair dryer mounted on your handle bars however?

now if you actually turbocharged it, then you might get some cool power!

**B0000M** · 15th August 2010, 09:41

Originally Posted by morg_nz

now if you actually turbocharged it, then you might get some cool power!

the problem with that is that most bikes are producing as much heat as their cooling system will allow for allready- add a turbo to the mix and you have more problems.... not to mention turbos like dirt particles / water going through them even less than a standard piston engine

**yokel** · 15th August 2010, 14:18

I always wanted to try something like this

just have it hooked up with a VSD and linked to the RPMs or throttle position, simple as bro

if it was a bit better quality lookin I'd try it!

This could well a good alternative to using hi RPMs to make power on 250fs

**Stylo** · 15th August 2010, 18:58

Originally Posted by yokel

I always wanted to try something like this

just have it hooked up with a VSD and linked to the RPMs or throttle position, simple as bro

if it was a bit better quality lookin I'd try it!

This could well a good alternative to using hi RPMs to make power on 250fs

Why not just buy a 250 T and save the expense ?

You're talking about adding more moving parts to ...already too many moving parts ,

So many moving parts and, so little power gain...you must have more money than I to waste on polishing turds .....go the 2 Strokes

**warewolf** · 15th August 2010, 20:13

Originally Posted by morg_nz

quite serioisly, there is not way a piddly electric motor could generate airflow anywhere near to,

Umm, it's not a piddly electric motor.

14 Volts x 10-to-14 Amps = 140-to-196 Watts.

So another problem is how many 250 4T's have a spare 196W out of the generator??

**CRF119** · 15th August 2010, 20:46

Some things really are made to just fill landfills lmao

**cheese** · 15th August 2010, 20:56

Nice idea, but you need to vary the air pressure depending on demand. So unless its got some pressure release valve of a variable speed controller that adjusts itself to revs, its ass.

My vote is its ass.

**gatch** · 15th August 2010, 21:07

Originally Posted by warewolf

Umm, it's not a piddly electric motor.

14 Volts x 10-to-14 Amps = 140-to-196 Watts.

So another problem is how many 250 4T's have a spare 196W out of the generator??

Think about how much air flows through a 1800W vacuum cleaner. Take one tenth of that and compare it to the air requirements of your 250..

I think very much insufficient..

**warewolf** · 15th August 2010, 21:36

Originally Posted by gatch

I think very much insufficient..

You could very well be right.

So it consumes more electrical power than the generator can supply, can't flow enough air, doesn't vary with the load, and if it did it would overload the cooling system.

Any more negatives?!

**barty5** · 15th August 2010, 22:14

Originally Posted by warewolf

You could very well be right.

So it consumes more electrical power than the generator can supply, can't flow enough air, doesn't vary with the load, and if it did it would overload the cooling system.

Any more negatives?!

yup mounting it and i wonder how well it will go after you go flying through a large puddle let alone sand. Besides where in the hell are you going to find the room to fit it????