pulse tuning

**Polska** · 13-11-2006, 09:02 PM

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** · 14-11-2006, 08:09 AM

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** · 14-11-2006, 06:09 PM

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** · 15-11-2006, 03:57 AM

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

Enjoy

**Ben Wilson** · 15-11-2006, 08:01 AM

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 · 15-11-2006, 10:13 AM

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