Types or Carbs

[suppaduppa]

Can any one explain the pro's & con's between a "Slide valve" carb and a "Rotary" Carb?

 

[GilBeQuick]

Supposedly the slide carb gives you smoother, more consistent air flow and fuel metering (more precise). Most higher end vehicles come with slide carbs, most lower end vehicles come with rotary carbs.

I've had both and I honestly can't tell any difference.

 

[StaticSag]

I raced back to back races on the same track recently with the same truck. 1st weekend I ran a Mugen MT12 Rotary carb....the next a Mugen MT12 Slide......the slide seemed to have a smoother broader power distribution. especially from low end to mid range...made the car more manageable

my .02

Saggy

 

[robriguez]

Yes the slide will give you more throttle control than a rotary. The exponential gain in the opening is less than with a rotary carb.

In my experience with a slide carb you can smoothly go from 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, 100% open.

With a Rotary it seems its more like 10%, 20%, 50%, 90% 100% open.

If you are the type of person that is either 100% on the throttle or 100% off the throttle you will not notice a difference between the two. If you want more linear control over the throttle position then you want a Slide Carb hands down.

 

[GilBeQuick]

Originally posted by robriguez
If you are the type of person that is either 100% on the throttle or 100% off the throttle you will not notice a difference between the two. If you want more linear control over the throttle position then you want a Slide Carb hands down.

That's my problem right there....I can't drive!