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Built Rb26 And Nos

portaz

By portaz,
in Engines & Forced Induction

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portaz Mentor

portaz

Posted
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Hi guys I need a little help, I have spent hours searching here and other forums (albeit via I phone) my new engine is a built rb26 cams e 85 - 5s etc and I've let myself get into a race with a 520 kw r35 ( which I will probably loose lol ) so in thinking cause nos is so cheap it might make it less embarrassing. So I came across the horror stories but is anyone using it? How is it mounted? I have 2 old d jetro ports I'm not using is that an option direct into the manifold? I've seen ppl plumb it before the tb but not in rb26 it's a genuine nos wet kit and I'm thinking a 50 or 75 hp shot will be enough. I'm after advice on how to do it correctly not dont do it get bigger turbos etc ive already spent a small countries GDP so something under a grand is a great option to get past the bank manager aka wife

Scott

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STATUS Grand Master

STATUS

Posted
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it will need to be in the cooler pipe just pre plenum as its a wet kit and need as much help with distribution as possible, 75hp will be super reliable if set right. make sure it has a min rpm setting (to stop blowing back) and only activates on full throttle and via push button.

luke gtr Grand Master

luke gtr

Posted
Posted

tell harry you need 2 of the big ones.

by tonight....

but srsly, will keep an eye on this.

do your injectors have enough left in them to run a dry setup?

and does your fuel system have enough in it to run it in the first place?

maybe squeeze up to a 100 shot?

portaz Mentor

portaz

Posted
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Posted

2000cc injectors and walbro 460 e85 pump I will know more when it goes on the dyno I'm looking at a few different nos systems in regards to transmission it's Gtr five speed but as long as it holds together I know from experience I can best a 35 off the line

XRATED Veteran

XRATED

Posted
Posted

So a dry system runs inline with fuel system and wet just sprays nos in and hopes for best with fuel system ? Wet is much cheaper but the w.o.n kits look nice with lots of control etc

You have it around the wrong way And wrong...

You'r not going to get a well set up and reliable nitrous kit, installed and running under 1k.

The cheapest way to go would be to buy a nitrous express wet kit. Buy a bottle warmer that is controlled with an inline pressure switch. Buy an msd rpm window switch.

.... then take the whole lot to a workshop that knows what they're doing with imports and nitrous. that's not many workshops in Aus.

Have it activate at wot over 4k rpm... don't install any buttons for activation, it's confusing when your doing 200km/h.

For a single point of injection, limit the shot to 75hp... and 'aim' the stream towards the back runner from the start of the intake plenum.

You'll have to use bigger than recommended fuel jets with e85... and don't tune it using afr meters only. Nitrous will give false oxygen mix readings and you will lean the whole lot off too much.

... then once you have it installed, tuned and into your second bottle.

you still wont see streaming lights, the pop rivets won't drop your floor pan and flames won't shoot out of the tail pipe.

Cheers

Justin

luke gtr Grand Master

luke gtr

Posted
Posted

So a dry system runs inline with fuel system and wet just sprays nos in and hopes for best with fuel system ? Wet is much cheaper but the w.o.n kits look nice with lots of control etc

as in the above post, wrong way.

wet kit, will need install of extra fuel lines and fuel nozzle for the mix.

dry kit, uses the vehicles own fuel output to add the extra fuel required.

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