NITROUS OXIDE ( nos / n2o ) advice forum

Out with the old and in with the... old?

Okay, maybe not THAT old, but definitely more my taste.

This is a Ford Mustang 40th anniversary GT: it features a 4.6 V8, Rwd 5 speed, LSD diff, huge aftermarket, and nitrous potential!

Although this power train his looked down upon in the performance community, it's only a result of Ford being cheap and not putting the good stuff in their flagship muscle car. Of course once you add a few performance items, this engine begins to shine, more so on forced induction. These puppies can churn out very healthy power numbers with only a little bit of air from a blower and even on junk nitrous systems. When I was searching for a worthy WoN nitrous platform, this was the best I could find with a tiny bit of cash.

One main reason why I scored this puppy for dirt cheap (and relatively low mileage) was that it had a very common issue for all Ford 4.6 and 5.4 2v engines: a leaking intake manifold. It is such a common issue with no actual design revision from Ford, that I knew I could repair the problem quickly and inexpensively. However, the factory replacement would eventually fail again. This time, I performed my own modification that SHOULD prevent the manifold from cracking again or at least, delay it for much longer than it would normally.

With the Stang back up and running, there are only a few maintenance items remaining. However, I'm sill waiting on some parts so why not just get started and on giving it the Noscraft Nitrous treatment with some WoN goodness!

To begin, I benefitted from one of the MAJOR features of WoN systems: easy transference to another vehicle!



The donor car is my daily Chevy Sonic. It has a direct port system, but I swiped the Go-Quad crossfire in order to make the quick single point install on the Mustang. I need to block off the holes in the Sonic before converting to direct port on the Stang, also.

The Sonic was stripped of its power in fewer than 10 minutes! When I installed the system, I made sure that it was easily removed this quickly.

It appeared to be bone stock with the exception of an aftermarket intake and muffler replacement: sounds great, but the piping size is stock. Full exhaust will need to be done in the future.

The new manifold is already PRE-DRILLED for lovely DIRECT PORT!



I robbed the bottle brackets from the Lexus for now because I couldn't get access to remove the Sonic's cheapo bottle mount. I'm using U.S. 10 lb bottles because I have 3 of them. I'll upgrade the valves on them when I can.

As usual, nothing to see with the exception of the arming switch (not visible with the door closed), and the Maxy is in the glove box as it was in the Sonic. No TPS nor Tach signal, yet; right now I'm using the microswitch on the TB. The skull shift knob was a cool add-on included with the purchase.




I recycled as much as I could to make this project take shape as quickly as possible, which is why both pipes to the injector are BLUE. The Pulsoid mounting is to accommodate both SP and future DP without excessively long pipe lengths.

Mind you, I performed this transplant in a span of 4 hours. Unfortunately, the only exception from being operational is the lack of fuel take-off. In order to tap fuel, I need to use the compression tee for the plastic fuel feed line from the pump: there is NO SCHRADER or RUBBER PIPE to tap from. I did try the scrap yard to find an older rail to do so, but they all were a radically different fit and wouldn't work. So I will order some of those Tee's for this project and to add to inventory!

The goal on SP is 100 bhp increase, primarily because the intake manifold is SWOOPY with the airflow aiming downward to the plenum, then back upward 180* to enter the LOOOONG runners, which is why direct port is vital for higher increases without risking lean backfires from fuel drop-out.

wow thats a cool Mustang

I know they are probably common place in the states, but over here in the u.k you dont see them often.

I will be watching carefully when you fit the compression fittings on your fuel line, A. because thats what i should of done and B. a lad on face book may be purchasing a WON kit for his fiesta (the same car as mine) on the strength of seeing my car/install on a ford fiesta page i posted on, and hes asked for my help fitting the kit to his car... although I will try and direct him to this forum first

in the mean time i look forward to your further updates on the stang...

I didn't even realise the fittings existed until AFTER you had already done the deed; it's still a viable method, granted the tee is superior.

Another thing i forgot to mention is, I had to replace my replacement rubber fuel hose a few weeks ago, as it had started perishing already... its not even been on the car 12 months yet.

I did a bit of internet research and people were saying its modern fuel that causes them to perish, but when i slit the affected pipe in half, the inside looked ok, no signs of perishing at all, it was perishing from the out side...

so that led me to believe that it must be heat making it happen, but i was a bit puzzled as to why part of the pipe which is at the front of the engine, not in a particularly hot place, had also perished... theres loads of pipes in the engine bay, for coolant etc... but none of these have started perishing even though they are 8 years old.

perhaps you could procure a replacement at the scrapyard and then use the compression tee to cure the problem permanently. Be advised, yours truly just finished cleaning them out, so you'll have to wait until they're back in stock at WoN

I did think about this... and the engine bay nylon line isnt available separate anywhere, its kinda melted onto the connectors, so not easy/possible to remove from even a scrap car. The only option would be to replace the whole fuel line from petrol tank to fuel rail.

so replacing a 3 ft piece of rubber hose every 9 months is the soft option.

It sounds like the quality of the hose you used is poor. Try a better hose like Goodyear Fuel Injection hose.

I have gone for a length of all singing all dancing pipe this time, Bio diesel, Ethanol, Methanol, E85 proof DIN 73379 which wasnt cheap... £16.99p a metre, so i will see how long this one lasts....

so thats what it looks like

Whats the power output of the mustang before nitrous? I saw Jay leno on his show recently where they put a blower on a standard latest mustang, which I think is the same as the one we get here now in RHD, anyway took it up to around 750bhp and hit over 200mph

I forget the name of the tuner, but he appears to be renowned in the US

I saw that Jay Leno program too

And i bet that blower install cost a fair few thousand dollars, against 700 odd quid for a brand new WON nitrous kit.

I looked into having my Fiesta super charged at O.C Motorsport, and they quoted me £3200 for 50hp over stock... so god knows how much a blower on a V8 capable of that kinda extra power would cost ...

and plus the blower cant be easily taken off the car and simply fitted to your next vehicle like a nitrous kit can...

The company is called Hennessy, looking on you tube he got quite a few cars doing doing 200+, to be fair if we had the bucks we'd probably buy one 70k dollars for the stang complete

https://www.youtube.com/watch?v=R6gDZFEC8Oc

There was a time in my past when even the low price of a nitrous kit would of been a dream

Went for a fuel test on this heap and it has too much of a fuel pressure drop to run a mere 75 hit. It is a high mile/km vehicle, but not unreasonably high so I expected the fuel pump to be somewhat degraded. What makes it worse is that the standard pump is already fairly weak so that needs an upgrade anyway, but I have an amp booster that I can use in the mean time: I'll order up a pump ASAP.

BTW, The plugs in this car were probably originals and they were BAD with gaps of 0.065" on avg. New NGKs are installed and restored A LOT of this car's performance; definitely potential for a fun ride here.

Just been looking at the spec for your Mustang, if im correct the performance figures is very close to my Z4, so will be very interesting to see the effect the nitrous has on each car, although the big V8 would probably have more potential, whats the most you will go for 100bhp, once you have the fueling sorted?

A Jap engine in a Mustang... I bet that would go down well with all the American's who seem to have a hatred of all things Jap

has it been done before... a Rice-Stang ?

I think the Jap car makers gave most of the worlds car manufacturers a wake up call in the 70's and 80's, they certainly did in the UK. Otherwise we would still be driving around in Allegro's, Morris Marina's and Austin Maxi's mind you the Indians still survive with the Morris Oxford reincarnation from a 50's design!

I think the other factor why we favour small robust 4 cylinder models in the uk is petrol prices, quite simply no one could afford to run an american v8 over here

the other thing is probably the size of our roads, quite narrow and twisty...

we had a small V8 over here which was an old Buick design, and fitted in top of the range Rover cars including the Range Rover, only 3500cc in its original guise and around 150hp, but it had bucket loads of torque... and was stretched to around 4800cc in its final guise.

plenty of people took them out of scrap yard Rovers and transplanted them into Fords and all kinds of makes of cars, a whole tuning industry was built on getting extra power out of the Rover V8.

Pump arrived, going in tomorrow

Now I see why it's so difficult to get good nitrous performance out of these cars when stock: they're tricky fuel system-wise. Even with the new pump, the fuel pressure falls when the fuel Pulsoid opens. I suspect a mapping adjustment is required to get the pump to flow more fuel. The max I'll go right now is 100 hp because it is the lowest fuel pressure I'd risk on the car. Any more jetting than that and the fuel will be in the danger zone where it'll lean out and hurt something. The only other alternative is to use a separate fuel system so that the factory ecu can remain.