72mm Plenum , Insulater & Spacer?

[Fat Griff]

Hi there people, just wondering on the best place and/or price to get these for a griff 500? Also if anyone has fitted a insulator spacer and plenum spacer does the afm elbow fit ok as everythings gone up and inch? Thanks in advance!

Edited by Fat Griff on Friday 21st March 21:26

[Johno]

Will the plenum still fit under the bonnet with both the spacer and the insulator ?

[Pupp]

Johno said:

Will the plenum still fit under the bonnet with both the spacer and the insulator ?

With the Magna parva insulator and the SC spacer, yes not a problem

[Johno]

I was considering both of these, but in the end I've re-assembled without for the moment. . . Perhaps I'll indulge late

[Pupp]

Johno said:

I was considering both of these, but in the end I've re-assembled without for the moment. . . Perhaps I'll indulge late

Bigrah on here made his own spacer from a nylon chopping board. Bloody Wilco one at that

[The AJP Griff]

if you want to buy new,then V8 Developments,or Castle Race Engines are a very good place to get a 72mm plenum.They also come up on e-bay quite often as used ones.The magna parva insulator is only 2mm thick,so does not compromise bonnett clearance.You can also make your own insulator from tuffnol,a material that can be bought very cheaply and in just about any thickness on e-bay.I made my own insulator for the manifold to trumpet base for £7(delivered price of some 3mm thick tuffnol),and there was just enough material to make two of them!!If you then wanted to make a plenum spacer(very simple)You could make one to the maximum thickness your bonnet clearance would allow if you liked.To measure how much clearance you have,you just need to close down the bonnett with a piece of plasticine stuck on the highest point of the plenum
Key in 'tuffnol' on e-bay and you'll find the company that sell it.Its best to get the 'carp' grade by the way.

[Fat Griff]

What would you make the plenum spacer in? Would raising the plenum height with a spacer cause problems with the elbow from the AFM?

[Pasco]

My spacer is 20mm thick with no issues what so ever.

HTH

[Wotland]

Hello, if you are interested I will have soon one ported hotwire plenum 71mm throttle.
Similar as this flapper :
[url=http://www.servimg.com/image_preview.php?i=215&u=11148396][/url]

[Fat Griff]

What tools are needed to cut the Tufnol base's? Was thinking of making a 2mm tufnol insulator to fit between the trumpet base and a 20mm plenum spacer to increase the plenum volume. Thanks for the advice in advance!

[The AJP Griff]

Fat Griff said:

What would you make the plenum spacer in? Would raising the plenum height with a spacer cause problems with the elbow from the AFM?

Make the plenum spacer in Tuffnol as well,as it's a fabulous insulator.It can easily be worked with normal hole saws,band saws and drills,just like a hardwood really,it machines very nicely

[eliot]

dont breathe the dust in though - its not good for you IIRC.

[Pupp]

eliot said:

dont breathe the dust in though - its not good for you IIRC.

Yep. Contains asbestos.

[The AJP Griff]

Pupp said:

eliot said:

dont breathe the dust in though - its not good for you IIRC.

Yep. Contains asbestos.

I've been told thats complete urban myth,which,considering asbestos is a banned substance,sounds likely!Perhaps they used to use asbestos to make it years ago?It is a cotton reinforced resin according to the websites i've been looking on,but i've asked the question to the producers,so we'll see.
Obviously it goes without saying that you should always wear a mask when machining materials that create dust!
I couldn't see it for sale on e-bay at the moment,but this company sells it here

Edited by The AJP Griff on Sunday 23 March 10:55

[Pupp]

The AJP Griff said:

Pupp said:

eliot said:

dont breathe the dust in though - its not good for you IIRC.

Yep. Contains asbestos.

I've been told thats complete urban myth,which,considering asbestos is a banned substance,sounds likely!Perhaps they used to use asbestos to make it years ago?It is a cotton reinforced resin according to the websites i've been looking on,but i've asked the question to the producers,so we'll see.
Obviously it goes without saying that you should always wear a mask when machining materials that create dust!
I couldn't see it for sale on e-bay at the moment,but this company sells it here

Edited by The AJP Griff on Sunday 23 March 10:55

Hmmmm.... maybe a circumstances thing and perhaps not representative now, but http://www.irwinmitchell.com/PressOffice/PressReleases/SheffieldWidowsSearchforWorkersAfterElectricianHusbandDiesFromCancer.htm 

[The AJP Griff]

Pupp said:

The AJP Griff said:

Pupp said:

eliot said:

dont breathe the dust in though - its not good for you IIRC.

Yep. Contains asbestos.

I've been told thats complete urban myth,which,considering asbestos is a banned substance,sounds likely!Perhaps they used to use asbestos to make it years ago?It is a cotton reinforced resin according to the websites i've been looking on,but i've asked the question to the producers,so we'll see.
Obviously it goes without saying that you should always wear a mask when machining materials that create dust!
I couldn't see it for sale on e-bay at the moment,but this company sells it here

Edited by The AJP Griff on Sunday 23 March 10:55

Hmmmm.... maybe a circumstances thing and perhaps not representative now, but http://www.irwinmitchell.com/PressOffice/PressReleases/SheffieldWidowsSearchforWorkersAfterElectricianHusbandDiesFromCancer.htm 

Things are very different now,this is exactly why asbestos was banned many years ago.I just had my enquiry answered by 'monique' at a company that deals with tufnol.I definately does not contain any asbestos,nor are any other harmful substances created from machining tufnol.it contains no harmful chemicals.As expected,they recommend you wear a mask when machining it to prevent inhalation of dust,just as you would with wood or similar,but thats it
If anyone would like a copy of the conversation transcript,then just mail me and i'll forward it.

Edited by The AJP Griff on Wednesday 26th March 16:26

Edited by The AJP Griff on Wednesday 26th March 16:28