Fuel Surge Tanks

[funkymonkey]

OK yes I know I have an N/A atm, but I have big plans which include an RB25DET and a TD06. Anyways, I'm also subscribed onto the OzDat mailing list, and the topic of buying/making a cheap surge tanks came up.

And this link was posted as a response from one of the members

http://www.sdsefi.com/techsurge.htm

Now, my question is this:

How much does a surgetank improve the performance of an R32 with an RB25DET with say..

a) GTR fuel pump and rails

B) Bosch 440 fuel pump n GTR rails

c) GTR fuel pump and RB25 rails with larger injectors (is this possible?)

also how does the location of a surgetank affect its performance, as I know having a surge tank in your engine bay in Australia is a big no-no due to safety reasons (no fuel allowed to collect in the engine bay), so is having it in the boot any better than just running it from the stock fuel tank? Or can you get away with it by disguising it at an oil catch tank or a fluid reservoir (by not making it shiny bling bling obvious)?

[funkymonkey]

oh and while you're at it, read through these highly informative pages on the same site:

http://www.sdsefi.com/tech.html

[R31Nismoid]

Im sure you understand how a tanks works etc... and it will just stop surge in each of your scenarios.

I dont think the scenarios affect the fact that a surge tank will help you if your intend to hit the track.

I dont understand:

so is having it in the boot any better than just running it from the stock fuel tank?

Ie, did you mean running the surge tank in your actual fuel tank?

Or

having a surge tank in the boot, as opposed to not having one at all?

The location wont affect it i wouldnt imagine.

And no, dont run it in the engine bay, keep it semi legal for your own safety and other roads users'

BTW, i'd go a Bosch M/S pump, and 550cc injectors that bolt into the stock 25 rail

No fuss with GTR rails and stuff.

[funkymonkey]

that setup u reccomended is the one you have in you're car eh Ash? If so I rikey that idea velly velly much.

And what I meant was... does having the surge tank in the boot defy the purpose of having a surge tank at all? ie would you be better of having no surge tank and just using the stock system?

More than a performance boost I'm looking to make the engine as efficient as possible with the upgraded parts (higher volume injectors n pump, bfo turbo n all). So does having a surge tank help in this instance? Or has nissan's engineering dept already thought ahead and made fitting a surge tank into a 1993 R32 a waste of time?

[R31Nismoid]

the BTW bit?

Yeah man, it's all bolt in stuff you can get from Japan

No need to change rails or anything. That's added effort not required.

No, having it in the boot doesnt defy the purpose.

It doesnt matter so much where it's located.

It's too hard to explain myself when typing... I'll explain in person on Sat at the meet.

[funkymonkey]

haha sounds good. also, higher flowing braided lines? helpful or not with fuel pumps?

I should be asking my old man this stuff lol he's a hose and valve advisor/expert for the Sydney city council and lectures on mech eng at tafe.

[Laurence]

Here is a setup from another country, not Australia cause that would be illegal.

Basically it stops you from leaning out your nice expensive new engine when your fuel is splooshed off to one side around Phillip Island.

p.s. Ummm I mean, errr another track, not in Australia

[Craved]

thats a good site you posted here Shan!!!