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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Surge tank info?
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Wed, 27 October 2004 06:18
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Just wanted to see what kind of info was available for surge tanks, ie. how they're used, what applications, etc. I was thinking of using one, but I don't really have anywhere to put it except in my cargo area. I don't have rear seats so that makes for a LOT of cargo area. Most people I've seen put one in their boot area as it's close to the fuel tank. Mine is right under where the left-rear passenger seat WOULD be, but I don't know if I'd get it passed for engineering.
Anyone have any info on these?
Thanks in advance. 
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Location:
Sydney
Registered:
June 2004
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Re: Surge tank info?
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Wed, 27 October 2004 06:29
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surge tanks are mainly used as far as i know so that the motor doesnt lean out when the petrol tank is under 1/4 full.
they are usually put in either the boot, the engine bay or internal surge tanks (in petrol tank)
your best bet would probably be to get an internal one made. i dont think that you would get passed if in cargo bay as it is open into the compartment and if there are any leaks/explosions/etc then very hazardous.
the most common method for external ones near the tank is that they are filled from the top of the surge by a lift pump (small low pressure pump as small distance to travel) and then normal/high pressure pump feeds it to engine from bottom of tank.
if its in the engine bay then normal/high pressure pump to top of surge and lift pump to motor.
if you have an internal one then all is required is a normal/high pressure pump to motor as surge is filled within tank automatically.
with the return you can either have it go to the petrol tank or back to the surge. i believe if it goes back to surge it is a little better as less pumping/work required by lift pump.
hope this helps you.... also as for getting them made do a search in the sales sections as a few people on the forums make them if memory serves me right...
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Location:
Terrigal
Registered:
May 2002
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Re: Surge tank info?
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Wed, 27 October 2004 09:26
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Its only a guess but I would have thought a Rav4 would already have a efi style tank with baffling or internal swirl pot?
Cheers
Joel
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Location:
Adelaide
Registered:
May 2003
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Re: Surge tank info?
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Wed, 27 October 2004 10:01
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Aye as Joel said, probably internal. Well i would hope that the RAV4s wernt that crap not to have one. Then again,......
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I Supported Toymods
Location:
Sydney
Registered:
December 2002
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Re: Surge tank info?
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Wed, 27 October 2004 10:14
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You won't get past engineering with a surge tank in the cabin.
Just chuck it in your engine bay!
A surge tank minimises the chance of your engine running lean due to restrictions in your fuel system.
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Toymods member
I supported Toymods
Location:
Rydalmere, NSW
Registered:
May 2002
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Re: Surge tank info?
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Wed, 27 October 2004 22:53
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Thanks for the responses guys. I'm just "testing the water" here..
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