measurements for itb's/carbs

[robbo]

does anyon know the optimumn length from end of trumpet to face of head for air flow velocity on f7r running throttle bodies/carbs?

looking into converting to r1 bike carbs on a budget any opinions are welcome on pro/cons
cheers

[robi1000]

Answer to this question is really simple. There's really no abundance of space in Clio bay, so make them as long as possible.

[Laine_16v]

Answer to this question is really simple. There's really no abundance of space in Clio bay, so make them as long as possible.

+1

Make them as long as you can physically fit under the bonnet with enough space for decent filtration without smothering the end of the trumpets;

[sideways danny]

With bike parts, your biggest concern will be more finding some with a large enough throttle plate. Most bikes use 38mm or less. Overall length will just effect torque by a handful of lb/ft

[dkrevs]

As above. IMHO, somewhere around 33cm is doable on F7 series engine in Clio, but with special MAXI style plenum.

[dkrevs]

As above. IMHO, somewhere around 33cm is doable on F7 series engine in Clio, but with special MAXI style plenum.

This is from the head, not valve.