Surge Tank & Fuel Line Selection - Advice Needed

[BakemonoRicer]

I plan to run a SARD surge tank fuel system in the S15 but first I need some advice please.

I am looking on the Sard website and have noticed there are two options available for fittings:

1. AN#6
2. φ8

I'm not sure what the difference is between those two? Which fitting do I need to suit the Silvia?

What lines are considered the best brand?

I've figured I'll run an EFR7064 turbo down the track - which is a turbo capable of ~340rwkw. Until the motor is built I'd be putting out ~250-260kw on 98 oct/17psi.

In terms of the surge tank, is the cylinder type typically preferred over the cuboid type? Is it worth buying the 5L surge tank as its only a couple of hundred dollars more than the 2L tank... e.g. any disadvantages to running a 5L surge tank?

Cheers

[Dose Pipe Sutututu]

Is the surge tank so the car is more "race pedigree"?

You don't need a surge tank man, the S14/15 fuel tanks are better designed than the S13 fuel tank thus you won't have issues with fuel sloshing about and leaning out.

If you really want the surge tank just for some rice at those jdmst meets, get those new AI surge tanks that support dual internal pumps with fuel safe bulk heads and fittings that sit ontop.

Many photos will get taken of it

Heard your racing pedigree clutch had issues...

[BakemonoRicer]

lol, surge tank is more so for peace of mind as I plan to do a fair bit of circuit work.

Even for fuel pressure regs, theres AN#6 and phi 8 fiitting option? So which fitting is it that I need? can't find any info on the net really.

and yeah, only had some issues with the clutch because of the idiots who did the install. they lost some of my parts as well.

ive found a good mechanic now who sorted it out, gearbox is still going strong btw.

[GTSBoy]

I'm guessing that your phi is not really phi. I'm guessing that it is just an O with a diagonal line though it, indicating "diameter". The 8 would therefore be 8mm. Unfortunately, no-one describes typical pipe threads (ie, your normal threaded pipe and hose fittings) as 8mm.....they tend to use imperial measurements so people know exactly what is meant. Nearest to 8mm is 5/16th of an inch. This is a reasonably likely size.

The other size mentioned is the rather common AN (stands for Army-Navy) used a lot on braided hoses. The # really should be a - (dash) and would be described as dash6 or -6. You could look that stuff up and find out what the -6 -8 -10 etc sizes mean. You could then decide what you want to order because it will depend on how you want to pipe and plumb it up. Be aware that you need to have a good relationship with your bank manager before embarking on putting good quality braided hoses and fittings into your car. Under no circumstances should you contemplate using the "cheap" brands. There are only 1 or 2 brands of braided hoses and fittings to be contemplated. The rest should be left to people who don't know better and haven't been warned.

[XKLABA]

A single 460 intake will supply that goal, I didn't want to go twin intank and one wasn't going to be enough for my end goal

Just run with the tank above half and you will be fine