pulse tuning

[Polska]

when pulse tuning an induction system for torque would i have to weld up a longer intake manifold or can i just add trumpets on the carbie .... or is there other options?

[Ben Wilson]

For tuning at wide open throttle it doesn't really matter where the butterfly is. Are you trying to get it working on a single carbie?

[Polska]

i ve got a 2t single carb i was seeing if i can get away with just a trumpet on top but if a new manifold is in order i could fit two or four individual carbs (motocycle carbies ) would someone know how much length/diameter i would need for some good torque numbers

[MWP]

Here is a bit of info on the subject:
http://www.v-eight.com/tech_forum/viewtopic.php?t=22

Enjoy

[Ben Wilson]

Motorcycle carbs (or throttle bodies), would allow you to have a lot of fun. The link above should give you enough information to get started...

[ed]

also worth a read (if this type of stuff appeals to you)

Journal of Sound and Vibration 271 (2004) 959–984
The acoustics of racing engine intake systems
M.F. Harrisona,*, A. Dunkleyb
School of Engineering, White Building, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK, Ilmor Engineering Ltd, Quarry Road, Brixworth, Northants NN6 9UB, UK