dave-69isit
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 posted on 21/2/06 at 10:11 PM |
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trumpet socks or filters
i have twin 40 on my xflow what are the best to use trumpet socks or filters
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Jon Ison
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| posted on 21/2/06 at 10:13 PM |
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personal opinion but i think a pair of webbers deserve a nice long single filter with nice shiny ram pipes sticking out of the back plate,
socks look like 1/2 a job too me.
just an opinion.
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zilspeed
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| posted on 21/2/06 at 10:17 PM |
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Even better is an airbox with the inlet facing the front. It focuses the intake noise to the front so that the engine sounds ferocious on full noise.
That's my favourite memory of the old Clubmans 'A' cars. 1700cc xflows on twin 45s making 195bhp at big revs. What a noise 
Err - anyway. Back to the point. Big single filter inside the airbox 
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skydivepaul
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| posted on 21/2/06 at 10:29 PM |
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I would suggest an airbox with ram pipes on the carbs and a panel filter.
Or two K&N's with the back plate to house the ram pipes.
I had a westie with twin 40's and ram pipes, I ran it with the trumpet socks and they just killed the power. I ran it with open pipes for the
best effect but the K&N didnt sap too much power.
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NS Dev
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| posted on 22/2/06 at 12:05 AM |
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agreed, socks are cheap n dirty but cost power and look crap in my opinion.
I ran em a while back on my XE 16v in the manta road car as I couldn't get a proper filter in.
On the rolling road they cost quite a bit of power (11hp I think and that was huge ITG socks)
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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DIY Si
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| posted on 22/2/06 at 12:48 AM |
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Sock filters tend to sit far to close to the end of the ram pipe/carb face. They generally restrict the airflow and therefore power. Which is bad.
K&N's shouldn't affect power in the slightest due to having a huge flow rate, IF you've got the right size one. My mini runs a
single 48 IDA with a single K&N rated at well over 300 bhp. Given a choice though, go for an air box with the biggest panel filter you can fit and
a scoop/ram at the front for all that lovely cold air.
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bimbleuk
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| posted on 22/2/06 at 08:20 AM |
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Not a lot to add except what DIY Si said!
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Benzine
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| posted on 22/2/06 at 01:47 PM |
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I have twin weber 45s with socks on at the moment, didn't realise they restricted flow so much. Can you get a K&N filter box that fits over
both carbs or do you need seperate ones?
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NS Dev
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| posted on 22/2/06 at 03:53 PM |
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You can get one that goes over both, not cheap but flipping nice, carbon effect ABS covers.
see below, see the airbox on the back of the grasser, fitted to 48mm throttle bodies (DCOE pattern bodies)
[img][/img]
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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NS Dev
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| posted on 22/2/06 at 05:24 PM |
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Metallic tricky!!!
You can buy em from demon tweeks, but they are around £100
try BP Grassing, not on their website but worth a try, you won't find much cheaper.
BP Grassing
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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Benzine
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| posted on 22/2/06 at 05:43 PM |
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Thanks. I deleted my previous post as there were 2 of them but now they are both gone :S
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DIY Si
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| posted on 24/2/06 at 12:20 AM |
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I believ, but don't take this as gospel, that ITG make a filter housing that will cover both carbs with one big filter. The back plate needs
cutting to suit I think, but you can prob but them ready cut from somewhere. Prob direct from ITG thinking about it
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Benzine
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| posted on 24/2/06 at 12:43 AM |
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Like this one?
http://www.needforspeed.co.uk/pages/sbv_pl.asp?Vehicle=UV___01&
amp;PartType=AFI06
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NS Dev
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| posted on 24/2/06 at 10:55 AM |
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Aye they make some very nice sausage filters, but I would ALWAYS use K&N filters as a preference.
I have an ITG one for my 7 but only as it was with the throttle bodies etc and will be easy to get through SVA.
In my opinion the K&N is a better item altogether, though at around £100 for the airbox it needs to be!!
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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DIY Si
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| posted on 24/2/06 at 10:35 PM |
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Agreed. K&N aren't cheap, but when you consider that they will run happily with 1/4" of dust on them and not drop much in the way of
flow rates you can't arque too much. And they only need oiling once every 6-12 months. On of the lowest maintenaince bits on the car!
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NS Dev
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| posted on 25/2/06 at 02:02 AM |
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EXACTLY!!!!!!!!!!
That's why I love them!
Not many autograssers that don't use them, for just that reason, cos we'll get 1/4" of dust in two heats if the track water
doesn't get laid down and the poor engine's breathing pure soil dust.
With the ITG socks I always used to get brown crud near the throttles on the throttle bodies, but they stay
completely clean with the K&N.
The ITG socks were also the long ones, 10" long, not the small ones like pipercross etc.
Not dissing any filter makers, as I said I am using an ITG jobbie as I have it, but K&N are the best type full stop.
Retro RWD is the way forward...........automotive fabrication, car restoration, sheetmetal work, engine conversion
retro car restoration and tuning
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