Anyone considered NOS?

HellFire · 17-07-2005, 14:12

Just wondered if anyone had considered/has chucked some NOS on their vRS's? I'd be interested to know the results

25/50 shot I think would be safe, however I would be concerned about putting even more stress on an already remapped car.

P.S. I am in no way going to attempt doing this, just interested in people's views

bengie · 17-07-2005, 14:25

i have seriously considered nos on my 4x4, but the way to go is a progressive controller rather than a shot. then you can bring it in gradually rather than just shoving a load of power into it and breaking things

FabiaTDi · 17-07-2005, 14:35

Quote:

Originally Posted by HellFire

Just wondered if anyone had considered/has chucked some NOS on their vRS's? I'd be interested to know the results

25/50 shot I think would be safe, however I would be concerned about putting even more stress on an already remapped car.

P.S. I am in no way going to attempt doing this, just interested in people's views

There is a good decription of how it worked on the tdi engine on the JBS site..

well there used to be - cant find it now.

If it was me i would go for bigger turbo instead as you get the benefits of it more often and you dont need to refill bottles/arm system first etc etc..

faboka vrs · 17-07-2005, 18:15

JBS use to have a demo fabia vrs fitted with NOS. MAde around 215-220bhp using a special REVO map. Think this is the limit you can go on power due to maxing out the injectors.

I too would go down the hybrid/bigger turbo road for the same reasons above.

Josh_PoloGTi · 17-07-2005, 23:22

I was going to use the kit from my Polo on my vRS, but I decided against it and sold the kit.

I figured that as I'd have to buy a new uprated clutch, it'd cost too much.

SteVRs · 18-07-2005, 08:53

The petrol boys will be fine, with a diesel you're asking for trouble by increasing octance values - diesel depends on the cetane value, not the octane value and massive detonations seriously damage diesel engines.

It will work, apparently very well, but for how long???

bengie · 18-07-2005, 09:45

nitrous doesn't increase the octane though, nitrousoxide just has more oxygen than air so gives a similar result to a turbo and super charger. more oxygen per gram or what ever

ScoobyChris · 18-07-2005, 09:59

Quote:

Originally Posted by SteVRs

The petrol boys will be fine, with a diesel you're asking for trouble by increasing octance values - diesel depends on the cetane value, not the octane value and massive detonations seriously damage diesel engines.

It will work, apparently very well, but for how long???

But the diesel engine is a stronger unit than a petrol, so can cope with the higher burning temps. Didn't 5th gear put NOS on an N-reg automatic Golf diesel and it absolutely flew. Think the company who did it offered a 3 year warranty on the system so they must have some confidence in it

Chris

Goochie · 18-07-2005, 10:04

IMHO Nitrous is a pointless waste of time in a road car. Why not get a bigger turbo, new cams etc?

SteVRs · 18-07-2005, 12:11

Nitrous does increase oxygen - that's what gives the extra performance, but it also detonates, like petrol - it'll explode without mixing with other fuel if ignited. Yes a diesel is a stronger unit, but it's designed to handle a different kind of force - compressive forces, not detonations.

Like I said, it will defintely work, but I'd severely doubt it working for long.

Goochie · 18-07-2005, 12:15

but a detonation causes a compressive force so whats the problem?

bengie · 18-07-2005, 12:27

the problem is early detonation, causes pinking

SteVRs · 18-07-2005, 13:00

Diesel has a very low octane rating, meaning it burns for a lot shorter time, creating less heat. Petrol has a high octane rating, meaning it burns for a long time.

A diesel block is not designed to cope with high octane fuel, which is essentially what diesel + nos is.

Basically the heat will f*ck the engine.

bengie · 18-07-2005, 13:11

diesel + nos isn't like a high octane fuel though

diesel + nos is like a TD i.e. diesel + more oxygen = biggerererer boom

diesel + nos + turbo = even biggererererererer boom so engine has more torque per rpm

SteVRs · 18-07-2005, 13:30

T'will kill it, trust me

bengie · 18-07-2005, 13:31

have you done it then steve? blown up a diesel through nos?

if so what was it, how much nos and who fitted it?

just curious as i'm interested in nos

SteVRs · 18-07-2005, 16:00

Not personally, father is a mechanic and many moons ago did this very job to an older TDI (he also supercharged an Austin Healy - spare crankshaft in the boot

). I also considered it for mine and enquired with him - forget the science, but basically it kills the engine

Fine for petrols though

HellFire · 18-07-2005, 19:05

Maybe someone should be asking why Wizard of Nos offer a 3 year warranty against engine parts then and why they are more than happy with the results?

Also JBS did a Golf PD 150 IIRC which when revo'd produced 230 bhp? maybe someone should ask Sarah for her input then we could make an informed decision

SteVRs · 19-07-2005, 08:59

If you want to do it, do it.

richarde · 19-07-2005, 17:50

NOS also brings free radicals to the party which like to eat, well most things, but especially the kind of alloys used for pistons, inlet manifolds etc. Hence the lifespan of many internal components will be shortened..

17-07-2005, 14:12	#1
HellFire Briskodian Join Date: Jun 2004 Location: Leeds, West Yorkshire Posts: 3,174 Thanks: 0 Thanked 2 Times in 2 Posts	Anyone considered NOS? Just wondered if anyone had considered/has chucked some NOS on their vRS's? I'd be interested to know the results 25/50 shot I think would be safe, however I would be concerned about putting even more stress on an already remapped car. P.S. I am in no way going to attempt doing this, just interested in people's views __________________ Metro Blue '06' 5 Door Astra 1.8 SRi

17-07-2005, 14:25	#2
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 14,612 Thanks: 15 Thanked 111 Times in 99 Posts	i have seriously considered nos on my 4x4, but the way to go is a progressive controller rather than a shot. then you can bring it in gradually rather than just shoving a load of power into it and breaking things __________________ owner of a skoda octavia 4xvrs3

17-07-2005, 18:15	#4
faboka vrs Briskodian Join Date: Oct 2003 Location: Merseyside Posts: 5,921 Thanks: 11 Thanked 33 Times in 33 Posts	JBS use to have a demo fabia vrs fitted with NOS. MAde around 215-220bhp using a special REVO map. Think this is the limit you can go on power due to maxing out the injectors. I too would go down the hybrid/bigger turbo road for the same reasons above. __________________ John Take away the poor damping, inadequate bushes, heavy diesel lump and spongy brakes its not a bad warm hatch

18-07-2005, 08:53	#6
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	The petrol boys will be fine, with a diesel you're asking for trouble by increasing octance values - diesel depends on the cetane value, not the octane value and massive detonations seriously damage diesel engines. It will work, apparently very well, but for how long??? __________________ Bike with engine coming soon...

18-07-2005, 09:45	#7
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 14,612 Thanks: 15 Thanked 111 Times in 99 Posts	nitrous doesn't increase the octane though, nitrousoxide just has more oxygen than air so gives a similar result to a turbo and super charger. more oxygen per gram or what ever __________________ owner of a skoda octavia 4xvrs3

18-07-2005, 10:04	#9
Goochie Briskodian Join Date: Jan 2004 Location: Up a tree. Posts: 12,384 Thanks: 7 Thanked 27 Times in 25 Posts	IMHO Nitrous is a pointless waste of time in a road car. Why not get a bigger turbo, new cams etc?

18-07-2005, 12:11	#10
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	Nitrous does increase oxygen - that's what gives the extra performance, but it also detonates, like petrol - it'll explode without mixing with other fuel if ignited. Yes a diesel is a stronger unit, but it's designed to handle a different kind of force - compressive forces, not detonations. Like I said, it will defintely work, but I'd severely doubt it working for long. __________________ Bike with engine coming soon...

18-07-2005, 12:15	#11
Goochie Briskodian Join Date: Jan 2004 Location: Up a tree. Posts: 12,384 Thanks: 7 Thanked 27 Times in 25 Posts	but a detonation causes a compressive force so whats the problem?

18-07-2005, 12:27	#12
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 14,612 Thanks: 15 Thanked 111 Times in 99 Posts	the problem is early detonation, causes pinking __________________ owner of a skoda octavia 4xvrs3

18-07-2005, 13:00	#13
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	Diesel has a very low octane rating, meaning it burns for a lot shorter time, creating less heat. Petrol has a high octane rating, meaning it burns for a long time. A diesel block is not designed to cope with high octane fuel, which is essentially what diesel + nos is. Basically the heat will f*ck the engine. __________________ Bike with engine coming soon...

18-07-2005, 13:11	#14
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 14,612 Thanks: 15 Thanked 111 Times in 99 Posts	diesel + nos isn't like a high octane fuel though diesel + nos is like a TD i.e. diesel + more oxygen = biggerererer boom diesel + nos + turbo = even biggererererererer boom so engine has more torque per rpm __________________ owner of a skoda octavia 4xvrs3

18-07-2005, 13:30	#15
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	T'will kill it, trust me __________________ Bike with engine coming soon...

18-07-2005, 13:31	#16
bengie splash!!!! Join Date: Feb 2004 Location: planet earth Posts: 14,612 Thanks: 15 Thanked 111 Times in 99 Posts	have you done it then steve? blown up a diesel through nos? if so what was it, how much nos and who fitted it? just curious as i'm interested in nos __________________ owner of a skoda octavia 4xvrs3

18-07-2005, 16:00	#17
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	Not personally, father is a mechanic and many moons ago did this very job to an older TDI (he also supercharged an Austin Healy - spare crankshaft in the boot ). I also considered it for mine and enquired with him - forget the science, but basically it kills the engine Fine for petrols though __________________ Bike with engine coming soon...

18-07-2005, 19:05	#18
HellFire Briskodian Join Date: Jun 2004 Location: Leeds, West Yorkshire Posts: 3,174 Thanks: 0 Thanked 2 Times in 2 Posts	Maybe someone should be asking why Wizard of Nos offer a 3 year warranty against engine parts then and why they are more than happy with the results? Also JBS did a Golf PD 150 IIRC which when revo'd produced 230 bhp? maybe someone should ask Sarah for her input then we could make an informed decision __________________ Metro Blue '06' 5 Door Astra 1.8 SRi

19-07-2005, 08:59	#19
SteVRs Briskodian Join Date: Sep 2004 Location: Leicestershire Posts: 3,063 Thanks: 4 Thanked 19 Times in 11 Posts	If you want to do it, do it. __________________ Bike with engine coming soon...

19-07-2005, 17:50	#20
richarde Briskodian Join Date: Jul 2004 Location: Liverpool Posts: 27 Thanks: 0 Thanked 0 Times in 0 Posts	NOS also brings free radicals to the party which like to eat, well most things, but especially the kind of alloys used for pistons, inlet manifolds etc. Hence the lifespan of many internal components will be shortened..

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