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Suppards
Cheapside,
United Kingdom
Posts: 724
Premier Member
Bonneville T100 (01->)
31 Mar 2008 21:40 |
I'm thinking of dropping the standard air filter and snorkel on my Bonnie for a Unifilter and velocity stack. (Got TOR exhausts fitted). Has anyone got any experience of this mod? Is it actually worth doing?
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~Bluelabel~
The Shades, Ongar,
United Kingdom
Posts: 31,217
Premier Member
Thunderbird Sport (98-00)
01 Apr 2008 08:54 |
Have a look at RobnoBrakes's bike he dropped the airbox... I think he runs just bellmouths
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Suppards
Cheapside,
United Kingdom
Posts: 724
Premier Member
Bonneville T100 (01->)
01 Apr 2008 19:09 |
Just love Rob's bike!  
Peter Jenks (Jenks Bolts) was developing a prototype airbox eliminator kit which, IIRC, replaces the mudguard function of the stock airbox and provides a storage compartment. But there's no signs of it being in production yet 
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Robnobrakes
Chelmsford,
United Kingdom
Posts: 148
Thruxton 900 (04->)
02 Apr 2008 17:40 |
Velocity stacks rock. The intake noise, and twittering of the carbs through town - magic.
Inline Image
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Suppards
Cheapside,
United Kingdom
Posts: 724
Premier Member
Bonneville T100 (01->)
03 Apr 2008 06:10 |
.......the rattle of the slides in twin Amal Concentrics (well, perhaps not). Magic Rob!  Where did you get your bellmouths from and what did you have to do to the jetting?
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Robnobrakes
Chelmsford,
United Kingdom
Posts: 148
Thruxton 900 (04->)
03 Apr 2008 06:22 |
[edited]:
The stock carbs have been replaced with 39mm flatslide Keihin FCR race carbs, which do rattle at tickover, further adding to the fun. The bellmouths were supplied with the carbs. They gave me another 2bhp over K&N filters. We needed to go up a jet size with the bellmouths. Main jets are now 150's. All tuning work has been carried out using a rolling road dyno at Bob Farnham Tuning. Fuel'air ratio is perfect.
PS You don't need to wait for Jenks Bolts to develop the airbox eliminator kit. You could cut out the airbox, leaving the battery box in position. That will save you ££££££'s
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