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 Post subject: Surge tank material
PostPosted: Sun Oct 04, 2015 10:41 pm 
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Hi everyone,

I am wanting to make up to a surge tank for my car and would like to know what materials people are using for their surge tanks?

Also what sort of fittings and size of fittings you have used?

Cheers
Muray_lotus7


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 Post subject: Re: Surge tank material - Pumps
PostPosted: Thu Oct 08, 2015 11:14 am 
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Hi everyone,

What low pressure pump would you suggest for filling up a Surge tank?

I have seen through the different conversion that most on the forum have used Facet Posiflow pumps. I have also read on other forums users complain that the square steel facet pumps fail and are also noisy if not mount on rubber washers and they use Huco low pressure pumps instead. Which pumps are better?

An update on the materials for the surge tank, I am going to be using a mild steel 74mm diameter pipe with a length of 240mm for the tank which will give a volume of roughly 1 litre. Is this a large enough volume tank for a Silvertop 20 valve?

Cheers
Murray_Lotus7


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 Post subject: Re: Surge tank material
PostPosted: Thu Oct 08, 2015 10:14 pm 
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Location: Goorrood
Rather use stainless steel, if any moisture gets into the steel tank it will rust inside. I used 100mm and about 350 which gave me about 2liters which I would say is the minimum.

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 Post subject: Re: Surge tank material
PostPosted: Thu Oct 15, 2015 9:05 pm 
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Thanks Boksie for the advice on using stainless steel, I hadn't thought about the steel rusting. I will look around JHB to find a suitable length of stainless steel to get the increase in volume of the surge tank.

What type of connections have you used on your surge tank? Your original surge tank pipes look like stainless 8mm piping and then you changed to brass barbed connections?

Cheers
Murray_lotus7


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 Post subject: Re: Surge tank material
PostPosted: Thu Oct 15, 2015 9:35 pm 
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Location: Goorrood
Yes, I tried to weld them in but couldn't get the rubber pipes over them, then I took them out and tapped the holes and brased the barbed fittings in the stainless/

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