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Author: Subject: Throttle body trumpets
phoenix70

posted on 3/2/09 at 03:42 PM Reply With Quote
Throttle body trumpets

Hi Guys,

I'm on the lookout for some TB trumpets, the need to fit a 40mm O/D Throttle Body.

Oh and I need 4 for them


TIA

Scott

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cd.thomson

posted on 3/2/09 at 03:51 PM Reply With Quote
still struggling to get some sensibly priced ones phoenix?

what bike are they from again? Ill keep my eye on ebay for you.





Craig

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BenB

posted on 3/2/09 at 03:52 PM Reply With Quote
Ooooh! So do I!! If all else fails I might end up fabbing some out of GRP... Turn some floral foam on a pillar drill to the required profile and use it as a buck to make some trumpets....
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phoenix70

posted on 3/2/09 at 03:57 PM Reply With Quote
quote:
Originally posted by cd.thomson
still struggling to get some sensibly priced ones phoenix?

what bike are they from again? Ill keep my eye on ebay for you.
]

Yup still struggling, being a cheapscate, I really don't want to spend £100-200 on then, also there going in an airbox so I don't really need shiney ones, just some plain old plastic ones will do. The TB's are off a Kawasaki GPZ1100.


Cheers

Scott

[Edited on 3/2/09 by phoenix70]

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liam.mccaffrey

posted on 3/2/09 at 04:00 PM Reply With Quote
once i get up and running in the workshop, im going to start making these because it seem like everyone want them





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coozer

posted on 3/2/09 at 04:03 PM Reply With Quote
I could do with some longer ones as well for my 55mm jobbies





1972 V8 Jago

1980 Z750

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cd.thomson

posted on 3/2/09 at 04:07 PM Reply With Quote
quote:
Originally posted by coozer
My 55mm jobbie


*Rolls eyes* put it away coozer





Craig

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twybrow

posted on 3/2/09 at 04:11 PM Reply With Quote
Are they not available from the OEM? I am using a Triumph engine, and the rubber inlet trumpets are £6 each from Triumph...
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will121

posted on 3/2/09 at 04:19 PM Reply With Quote
quote:
Originally posted by phoenix70
quote:
Originally posted by cd.thomson
still struggling to get some sensibly priced ones phoenix?

what bike are they from again? Ill keep my eye on ebay for you.
]

Yup still struggling, being a cheapscate, I really don't want to spend £100-200 on then, also there going in an airbox so I don't really need shiney ones, just some plain old plastic ones will do. The TB's are off a Kawasaki GPZ1100.


Cheers

Scott

[Edited on 3/2/09 by phoenix70]


as above can you not get a airbox off ebay which has the trumpets fitted? generally they are soft rubber type and just pull out of the origional hard plastic air box.

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cd.thomson

posted on 3/2/09 at 04:36 PM Reply With Quote
The GPZ1100 airboxes dont come up often unfortunately.





Craig

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twybrow

posted on 3/2/09 at 04:41 PM Reply With Quote
Have you actually asked Suzuki spare parts? They will probably be a cheap spare part if they are still available.
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clairetoo

posted on 3/2/09 at 05:06 PM Reply With Quote
This is what I made when I first went for throttle bodies - they are 40mm internally , but I can only find three `leftover's` the same - they are allso quite long (110mm) as they were for a very short manifold setup .
I dont have any carbon , but I could knock up a set in aluminised glass fibre cloth ? (like the odd one on the right)
Crossflow bits
Crossflow bits

Or.........if others are likely to want the same , I could turn a former to whatever size needed ?





Its cuz I is blond , innit

Claire xx

Will weld for food......

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BenB

posted on 3/2/09 at 05:12 PM Reply With Quote
Thats kind of what I'm planning on doing but with a very shallow trumpet (not much height in the airbox) and a stepped bit so that they slide on to the end of the 40mm tube as it enters the airbox without an internal restriction or ridge....

My plan of attack is

Floral foam
Pillar drill roughly file to shape (IE attack with dremel with sanding drum)
Car body filler
Smooth on pillar drill with files / sand paper
Wax
PVA
4 epoxy GRP trumpets....

I was going to make some moulds out of wax and then melt out the wax afterwards (I even made a little wax lathe to turn them on) but realised it was much easier to make a buck....

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phoenix70

posted on 3/2/09 at 06:00 PM Reply With Quote
quote:
Originally posted by clairetoo
This is what I made when I first went for throttle bodies - they are 40mm internally , but I can only find three `leftover's` the same - they are allso quite long (110mm) as they were for a very short manifold setup .
I dont have any carbon , but I could knock up a set in aluminised glass fibre cloth ? (like the odd one on the right)
Crossflow bits
Crossflow bits

Or.........if others are likely to want the same , I could turn a former to whatever size needed ?


I like those trumpets, unfortunately, they are too long, I would need them to be much shorter than that.

Scott

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Peteff

posted on 3/2/09 at 06:23 PM Reply With Quote
Get the saw out then





yours, Pete

I went into the RSPCA office the other day. It was so small you could hardly swing a cat in there.

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stevebubs

posted on 3/2/09 at 06:35 PM Reply With Quote
hint: look at the bike airboxes on ebay. They often have the rubbers attached...
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stevebubs

posted on 3/2/09 at 06:38 PM Reply With Quote
e.g. this CBR600 box has 3 of the 4 still attached...

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=270149034537

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chrisg

posted on 3/2/09 at 06:42 PM Reply With Quote
Imagine this, upside down with the "egg" bit removed



Might look a lot like a stainless steel trumpet......?

Cheers

Chris





Note to all: I really don't know when to leave well alone. I tried to get clever with the mods, then when they gave me a lifeline to see the error of my ways, I tried to incite more trouble via u2u. So now I'm banned, never to return again. They should have done it years ago!

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stevebubs

posted on 3/2/09 at 06:50 PM Reply With Quote
Clicky

<---- I used a 48mm bare aluminium spinnings on mine and connected them using jubilee clips and fuel filler pipe .... don't seem to do 40mm, though


[Edited on 3/2/09 by stevebubs]

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v8kid

posted on 3/2/09 at 08:35 PM Reply With Quote
Ian Richardson from Wildcat Engineering www.roverv8engine.co.uk supplied mine at a very reasonable price - give him a ring he's a good guy.

Cheers

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Numb nuts

posted on 3/2/09 at 08:45 PM Reply With Quote
Scot

The R6 ones are 45 mm long and 42 mm I/D in black rubber, will reduce to 40 mm with ease...and cheap

Steve

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