NOS
Ok so its sunday and I am bored!how many peeps on here have had nos fitted to theirs cossies?what was your thoughts on it?any regrets?or just pure smiles?also what hp kits did you have fitted?did you have it so it kicked out when the turbo comes on song,or just to use whenever through the rev range?
Joined: May 2004
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Ok so its sunday and I am bored!how many peeps on here have had nos fitted to theirs cossies?what was your thoughts on it?any regrets?or just pure smiles?also what hp kits did you have fitted?did you have it so it kicked out when the turbo comes on song,or just to use whenever through the rev range?

Mate had a wizards kit on his with a 50 shot..we use to use it to destroy bikes up the bypass... APart from wanting to achieve something like drag strip .. Top speed runs etc...I think it's a waste of time IMO
Joined: May 2004
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From: either at work or on way :)
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50hp without a bottle heater can feel a bit naff, I did a 4x4 saph on a T4 which I jetted for around 125hp and it was savage, I do love a bit of gas but the bigger the jets the sooner it runs out and it does then get a bit like a expensive addiction.
As mentioned above good for drag racing but a little pointless for road use
As mentioned above good for drag racing but a little pointless for road use
ive had a kit on my zetec turbo for years , only used it once at the pod with 25hp jets and we data logged the run. we had no bottle heater and it went rich as hell low 10s iirc . fitted some 50hp jets but never had a go after that.
I have bought the bits and will fit later this year on insurance renew as can't with existing insurance! I will be going for 40 hp in a fiesta turbo. I will have it activated using a gear-stick knob with a guarded switch that will illuminate when on (built it my self!
). I have a controller that I can set so it is RPM and WOT dependent! I have issues with traction if I am flat out in anything but very good conditions in 1st and 2nd. So I am thinking that I can activate on change into 3rd ready for a killer overtake if needed! I have been in a pug 205 GTI with NOS and the kick was very impressive.
yeah i looked into it a bit after that and ordered some bigger jets . i was going to run the fuel jet from the 25kit with the gas jet from the 50kit .fitted them but never got round to giving it go. bottle is empty now tho
I arm it when i want to use it, so either santa pod or for upsetting people on the road
Its triggered through an adaptor on my tps, and activates at wide open throttle only
I know its a saft question but how long does it last?
Depends how big the bottle is and how big the NOS jets are - usually, not very long, that is why its only really suitable for drag racing
What bhp jets you run?
There are "dry" kits (NOS only) and "wet" kits (NOS and petrol into the inlet manifold) NOS makes the engine run lean, the bigger the NOS jets the leaner (its an oxegen supply system) more petrol is injected to balance this, the more petrol the richer it gets, its often set up rich to start (to prevent holed pistons and burnt exhaust valves) and gradually leaned off - as others have said the more NOS injected the shorter it lasts - running NOS can find weaknesses in the engine and trasmission
The wet nos kit can be used in conjunction with Methanol and water injection (again more suitable for drag racing)
Is it armed all the time?
Not normally (limited supply, remember)
Is it switched at full throttle or trigger?
Depends how big the bottle is and how big the NOS jets are - usually, not very long, that is why its only really suitable for drag racing
What bhp jets you run?
There are "dry" kits (NOS only) and "wet" kits (NOS and petrol into the inlet manifold) NOS makes the engine run lean, the bigger the NOS jets the leaner (its an oxegen supply system) more petrol is injected to balance this, the more petrol the richer it gets, its often set up rich to start (to prevent holed pistons and burnt exhaust valves) and gradually leaned off - as others have said the more NOS injected the shorter it lasts - running NOS can find weaknesses in the engine and trasmission
The wet nos kit can be used in conjunction with Methanol and water injection (again more suitable for drag racing)
Is it armed all the time?
Not normally (limited supply, remember)
Is it switched at full throttle or trigger?
A system that cuts out at high boost has to be carefully matched to the engine mapping/ management to avoid a deminishing power characteristrict
I wouldnt use anything apart from a wizards kit, i would stay well away from all the american brands
Wizards of nos kit with 125bhp Jets on mine with a T34.
Spools quicker than a small turbo escos, makes the power and torque of a good T4 engine.
Only downside is at retail money its about 50p a second to use!
Spools quicker than a small turbo escos, makes the power and torque of a good T4 engine.
Only downside is at retail money its about 50p a second to use!
Cool for putting 5bhp on a moped though
. Put mine with Nitrous on a RR it made about 80% of jet size so we fitted a 'push' system. If you use a direct port system & then a Nitogen 'push' bottle @ 1500psi the pressure drop can be negated & it becomes very efficient makes around 150% of jet size .
If you have a turbo charged car that is running loads of boost through a poor intercooler (ie a chipped calibra turbo for example) its not uncommon to massively exceed the rated bhp figures for the jets just thanks to the colling effect.
Also at some points in the rev range you will see MASSIVE gains from spooling the turbo earlier.
Olly clarke for example made 300bhp at the wheels extra on his scooby with 100bhp jets at about 5K rpm.
Basically its very application specific and no general rule of thumb will work for all cars.
Also at some points in the rev range you will see MASSIVE gains from spooling the turbo earlier.
Olly clarke for example made 300bhp at the wheels extra on his scooby with 100bhp jets at about 5K rpm.
Basically its very application specific and no general rule of thumb will work for all cars.
Last edited by Chip; Jan 7, 2013 at 11:52 AM.
Joined: May 2004
Posts: 27,262
Likes: 585
From: either at work or on way :)
Who told you that
. Put mine with Nitrous on a RR it made about 80% of jet size so we fitted a 'push' system. If you use a direct port system & then a Nitogen 'push' bottle @ 1500psi the pressure drop can be negated & it becomes very efficient makes around 150% of jet size .
. Put mine with Nitrous on a RR it made about 80% of jet size so we fitted a 'push' system. If you use a direct port system & then a Nitogen 'push' bottle @ 1500psi the pressure drop can be negated & it becomes very efficient makes around 150% of jet size .Hence I stuck "iirc " on the end and said supposed at the beginning ... You could write on the back of a stamp what I know about NOS..
Go for it, I'm going to put it on my saff when it's finished just for a buzz now and then.
Fitted a wizards of nos kit to my 24v xr4i, power went from 192hp to 248hp with 75hp jets. It feels a lot more than that on the road as the 24v is a lazy old lump so the nos gives it the boot up the rear it needs! With the nos over a distance of a mile it's on par with a e46 m3 which ain't bad for a car built for under a Ł1000 including the gas kit.
Fitted a wizards of nos kit to my 24v xr4i, power went from 192hp to 248hp with 75hp jets. It feels a lot more than that on the road as the 24v is a lazy old lump so the nos gives it the boot up the rear it needs! With the nos over a distance of a mile it's on par with a e46 m3 which ain't bad for a car built for under a Ł1000 including the gas kit.
Ive done a group buy with Wizards before, I got about 20% off most stuff.
But arranging them is a bit of a ballache TBH as people are forever saying they want stuff and then dont come up with the cash etc.
Anyway I think group buys might fall foul of the rules on here as it would be classed as if I was trading on behalf of wizards if I did another one so I dont think I am allowed to do it here anyway.
If I am I would only do so if people paid 100% of the money up front, I wouldnt do it on a deposits basis again as Ive been too mess around in the past.
But arranging them is a bit of a ballache TBH as people are forever saying they want stuff and then dont come up with the cash etc.
Anyway I think group buys might fall foul of the rules on here as it would be classed as if I was trading on behalf of wizards if I did another one so I dont think I am allowed to do it here anyway.
If I am I would only do so if people paid 100% of the money up front, I wouldnt do it on a deposits basis again as Ive been too mess around in the past.







