S1 / AX fuel tank

[jpsaxo]

Thinking of replacing my s2 fuel tank with the smaller s1 or AX fuel tank, anyone know the difference in weight?

Willsy has told me the fuel pump fits in the OE position in the S2 chassis so that's fine.

Would there be any extra issues with fuel surge using a smaller tank?

[Dave_P]

The later tank has less fuel starvation issues. Do you have a swirlpot fitted?

[jpsaxo]

I thought you might know Dave :D

Im just using the standard fuel system... I get fuel surge on long corners like Garrards @ Mallory when around 1/4 or less with the s2 tank currently

[tweeqd]

an AX GTI tank has a built in swirl pot, ive never had any issues with surge while useing one

[jpsaxo]

an AX GTI tank has a built in swirl pot, ive never had any issues with surge while useing one

That's the one to go for then? Any idea of the weight saving?

[tweeqd]

not sure on the weight saving, it might be lighter than a saxo but but there still bloody heavy

[mark1311]

Tbh josh a plastic tank just doset fit in on your car,... To much carbon up top, roof bonnet roof... Need some carbon on underside... Carbon fuel sell is the answer tbh

[jpsaxo]

Haha, I'm flash, but not THAT flash Mark :D

[willsy]

Haha, I'm flash, but not THAT flash Mark :D

..Yet ;)

[Ryan]

Alloy tank at small capacity then

[mark1311]

..Yet ;)

your one to bloody talk... look what u just had built in your garage:homme:

[jpsaxo]

your one to bloody talk... look what u just had built in your garage:homme:

Haha Mark! What's he had?

[Sophia_Bush]

rem the exh bend in the ax tank is different so if you do go for one sandy will need to make the exhaust to suit it

[Dave_P]

Alloy tank at small capacity then

Maybe a bit small... ;)

http://i334.photobucket.com/albums/m433/16v_rallye/14032010226.jpg

[dannygti]

To big Dave :) half the hills you can roll back down... You could get away with smaller ;)

[Olly]

would be good fun not knowing if you could get from services to services with that fuel tank all the way to the ring....

[jpsaxo]

would be good fun not knowing if you could get from services to services with that fuel tank all the way to the ring....

Haha exactly Olly, wouldn't be very practical would it!

[Ryan]

Haha exactly Olly, wouldn't be very practical would it!

couple of jerry cans on the roof for long trips like a safari ready land rover :zainy:

[jpsaxo]

couple of jerry cans on the roof for long trips like a safari ready land rover :zainy:

Lol Ryan, don't think the carbon roof would like that!

[Ryan]

Lol Ryan, don't think the carbon roof would like that!

Bit of foam under each tank job done lol

[jpsaxo]

Bit of foam under each tank job done lol

Lol, don't encourage him Mark!

[scottie_436]

Remember jp the s1 tank has 2 holes in the top... As the pump and sender are seperate.

I run a gti pump in mne so thats no issue.. But i still have to have the s1 sender (cut down mind) in the other side to fill the hole. Bit pikey for you ;)

[axsaxoman]

an AX GTI tank has a built in swirl pot, ive never had any issues with surge while useing one


ax tank has same problems --but it hardly suprises me you haven,t had the problem ,you need to accelerate or corner at over 1G to get notice it
there are two sizes of ax tank gt tank is bigger than the 1.0 cars.
If you are fitting a swirl pot +second pump ,don,t forget to fit another inline filter before the second pump

[axsaxoman]

Alloy tank at small capacity then
if you are running 180-200bhp at race speed you will not be getting more than about 6mpg--so a small tank --less than 5 gallons will be very restrictive
I know we used to get around 6mpg with the 1300cc race car


2.5gallons aprox for a 10 lap race including the warmup + slow down laps making 12 in all @1.3miles per lap
we had a 5gallon foam filled tank + a swirl pot and 2 pumps

[tweeqd]

ax tank has same problems --but it hardly suprises me you haven,t had the problem ,you need to accelerate or corner at over 1G to get notice it
there are two sizes of ax tank gt tank is bigger than the 1.0 cars.
If you are fitting a swirl pot +second pump ,don,t forget to fit another inline filter before the second pump

:homme:

i have had an issue since i wrote that reply but that was with 1/4 tank around donnington

if you have a full tank then there is no issue with an AX tank but im sure you dont actually read what i right you just like to make childish remarks about it, and yes my car wont accelerate and corner over 1g cos it wasnt built by GiMiC

[axsaxoman]

I read exactly what you wrote --you said you have never had a issue and the axtank has a swirl pot --so does the saxo as the returned fuel goes into the housing where the pump is
If you persist in keeping the quote at the bottom of your posts --which on its own is easily taken out of context of the original post --then don,t be suprised if I correct your statements which are incorrect especially when they show up your lack of knowledge of the cars this site is devoted to .
If you run the tank full on any car you will not get problems - common sense would tell anybody that ,but as extra fuel means extra weight and fire hazard ,why would you want to run a full tank on race track for possibly no more than a 30min session
If you have high G loadings then std tank will be fine down to just under 1/2

[blackie_2k5]

i often get surge on the roads with under half a tank :(