I received the following by email from NSMG, thought it would be more use to post the answers up here, also others may have different views.
Regards,
Michael
NSMG said:
NSMG said:
I'm thinking of getting a 40 mm TB by Tricker of Denmark , however if I get a 2nd hand punto 55 or 60 TB , there is no nozzle for the vacuum hose that goes to the airbox. How can I get around this problem ?
I would also like to hear your overall impressions about the Tricker TB in terms of drivability , fuel consumption and noise.
Do you think that a classic K&N panel filter can cope with the larger TB ?
Best Regards.
NSMG
Response
1) You only need the extra vacuum line if you keep the standard airbox. If you are using a K&N or GSI type its better to not have the extra vacuum hole as you only have to blank it off. If you want to use the standard airbox get a throttle body from a standard cento sporting and have that modified by tricker... (but seems a bit of a waste to keep with the standard box... see comments on using a panel filter)
2) Drivability, much better, more torque, more power, no real downside.
3) Fuel Consumption, on a week of mixed driving, 40% motorway (fast) and 60% cross country (hard acceleration and braking), about 10%-12% higher consumption 35mpg down to 31mpg. But as I get used to more power I think this will be less of a reduction as I am realising that there is less need to change down.
4) Noise, slightly louder induction roar when accelerating, but not any louder when cruising.
5) Panel filter, I expect that a panel filter will be OK but as I keep saying cold air is at least as important as lots of air. With a panel filter you need to remove the hot air mixing system and I would suggest that you use the hot air pipe (or preferably a bigger one) to feed cold air direct into the airbox. If you do this then you don't need the extra vacuum feed.
Hope this helps, others may have more tips or different views
Regards,
Michael