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Location:
Perth
Registered:
August 2002
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Re: surge tank legalities
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Wed, 04 December 2002 03:43
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hey ppl i got a sprinter and was wondering where can i put the surge tank legally???
if ne 1 can hel that would be great.
ps. i live in WA...
cheers az
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Location:
Brisbane
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 03:53
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I don't know much about the legal requirements in WA, but generally speaking you're not allowed to have any fuel system components in the passenger compartment. That means you'll need to mount your surge tank under the car somewhere.
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Location:
Brisbane
Registered:
July 2002
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Re: surge tank legalities
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Wed, 04 December 2002 03:57
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I just had my Sprinter converted to EFI. The surge tank was placed behind the guard behind me rear right wheel. There actually is some space there to fit one. Pumps then went under the car and are protected in a custom made guard box.
Not sure about legalities but I got me blue mod plate & all. Hope that helps.
Cheers.
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Location:
Terrigal
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 04:03
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I've also heard no fuel in passanger compartment. Though what I think is stupid like in an RA28, the fuel filler neck, breather pipes etc all run through the back of the car and are only protected from the passanger comparement by a thin piece of cardboard. So why cannot I put a surge tank in the back and screen it with cardboard ?? Not that I would, metal and wood would be much more appropriate but yeah point is how can they say its illegal when it basically comes from the factory like that?
Cheers
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Location:
c'town, NSW
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 04:16
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if its a liftback and theres no room above or beside the fuel tank you can mount it in the engine bay (talk to your engineer first) mine used to be mounted in the engine bay in front of firewall, behind the passenger side strut tower and engineered fine.
once again talk to your engineer
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Location:
Brisbane
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 05:23
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| TurboRA28 wrote on Wed, 04 December 2002 14:03 |
Though what I think is stupid like in an RA28, the fuel filler neck, breather pipes etc all run through the back of the car
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That's different - none of those components have high-pressure fuel in them. If you're in an accident and the breather pipe ruptures, it's not going to spray fuel around the passenger compartment at 40psi is it? When you think about it that way, keeping the fuel pumps and fuel lines under the car is just common sense.
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Location:
Sydney
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 09:07
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the engineer I spoke to said I could put it in the cabin (ra28) if it was sealed and was ducted to the outside
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Location:
Perth
Registered:
August 2002
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Re: surge tank legalities
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Wed, 04 December 2002 11:34
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cheers for the help guys still have no idea where to put mine tho ne more info would be great.
thanks az
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Location:
Sydney
Registered:
May 2002
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Re: surge tank legalities
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Wed, 04 December 2002 11:41
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speak to an engineer
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Location:
Southport
Registered:
November 2002
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Re: surge tank legalities
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Thu, 05 December 2002 01:47
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here is an easy option... I have my battery on the floor behing the passanger in a marine battery box, bolted down etc... put your surge tank where the battery was, for a couple of reasons... less resistance by long fuel lines on the high pressure end being the biggest advantage, another being, you don't have to uprgade all the fuel piping from the boot... Just be careful, and don't run into shit tooo hard...
Saw a system though where sone 2 1/4 inch exhause pipe was used as a surge tank, put that anywhere, the longer the pipe the larger the volume, but you can make it fit into a gap somewhere like along the firewall... I'm a fan of under the bonnet cause the cost of upgrading the fuel line, but hey, im a poor uni bum...
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Location:
Brisbane
Registered:
May 2002
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Re: surge tank legalities
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Thu, 05 December 2002 01:53
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Who says you have to upgrade the fuel lines? The factory ones work fine. Personally I think that putting a surge tank (or any sort of fuel tank) in the engine bay at the front of the car is a pretty dim idea, and probably illegal as well. If you ever have an accident, there's a good chance that fuel is going to end up on your hot engine... BOOM!
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Location:
Southport
Registered:
November 2002
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Re: surge tank legalities
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Thu, 05 December 2002 02:42
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At risk of looking like a complete fool, and being banished, i will defent my claim...
you will be running 40+psi through fuel lines which are old, and intended for considerable less psi...???
also... you onle need about 1 or so litre for the surge tank?? so if you crack and drop 1L of fuel (id suggest not putting it near the exhause by the way), the pump from the boot at low pressure is pushing less fuel into the engine bay. If you have a 40+psi pump in the boot, (or under it) you would be pushing heaps of fuel into the engine pay if you cracked a pipe... so you would have more than 1L in there.. so wouldn't you be more screwed? PLUS... the whole point of surge tanks (or at least part of it) is cause there is no longer fuel bowls at the carbie. now with my twin solex, there is a fair bit of fuel in these bowls anyway.
Thats my arguement. as for legalities, well, if a surge can't be legalised in the engine bay, how the hell do they put these huge water traps in there?
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Location:
Sydney
Registered:
May 2002
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Re: surge tank legalities
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Thu, 05 December 2002 02:53
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only the flexible rubber hoses need to be replaced, the standard metal lines should be fine unless you are doing some masssive horsepower conversion
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Location:
Brisbane
Registered:
May 2002
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Re: surge tank legalities
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Thu, 05 December 2002 03:46
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That's correct; I wasn't talking about the rubber lines, which need to be replaced either way. There's no way the steel lines are going to break with a mere 40psi!
As for safety issues, a decent shunt will see that 1 litre of fuel sprayed all over the place, and a litre of fuel can do a hell of a lot of damage once it's alight! A split high-pressure line is nowhere near as dangerous; the fuel pump is (or should be) wired up so that it cuts out in the event of an accident, so if there's a leak it will only be for a second or so.
In the case of my 18R-GEU (and many other Toyota engines), the fuel pump is triggered by a switch in the airflow meter. As soon as the engine stalls, the flap in the airflow meter closes and the fuel pump is switched off.
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