I am looking to buy a replacment set of these as mine are fairly hard and like to not stay on once clamped.
Can anyone give a suggestion on where to order them from? Please dont say a dealer lol
Those are OEM Gen 1 Suzuki Hayabusa Josh.
@rlm-dan .. G'day Dan. This makes me wonder if the bottom 'couplers' between the jenvey TB's and the cylinder head are also Gen 1 Hayabusa parts - do you know who makes them?
@rjbender Morning Rod, they are a custom part and not made by Suzuki so not readily available unfortunately. Its Radical, Jenvey or RLM for them!
Just to add Rod those trumpets Josh has are ones that were fitted to short stroke engines or tuned ones. The smaller airbox coupling that is used on most RS/RSX is a Honda component.
@rlm-dan ... great info as usual Thankyou! My RSX was originally built as a short stroke (Oct 2015), but was later upgraded to a long stroke (late 2017). The airbox is red and has a mix of shorter and longer inlet trumpets inside the airbox (shorter on cylinders 1 and 4, longer on 2 and 3.)
- Is that how they were 'arranged' originally?
- Does it really matter that I might have a short stroke airbox set-up on my long stroke 1500?
No problems Rod!
Larger airbox is better to have.
That is the standard set up on the trumpets - don't think you will get the long ones on the ends anyway but the order is not too critical - the SR8 runs a short - long - short - long set up.
Good to run on the long stroke as well, from memory, it should offer a better spread in power throughout the rev range and it was the main reason for doing this when Radical were trying to get the short stroke to produce similar power to the long stroke.
Awesome, thank you for all the great info Dan.
I'm wondering if the orientation of the taller trumpets matter at all.
Originally the two longer trumpets are placed in the middle and angled away from each other.
Should towards the airflow direction, away from the air flow direction or away from each other pointing to the outsides of the Box?
As standard they were fitted facing towards the inlet of the airbox.
To be honest I don't think it will really matter if they are angled off to each side slightly, they just don't want to be backwards as the inlet of the trumpet then sits quite close to the box which could restrict the intake slightly.
