NOS on a 4age

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Postby Al » Sat Sep 18, 2004 11:42 pm

kingcorolla wrote:maybe for a road AND track car, u could run a switch from the microswitch on the throttle, controllable from the cockpit?


Yep they come with those afaik.

The only thing with a wet kit is you really have to purge the lines before you use it :twisted: Got track intimidation 8)

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Postby kingcorolla » Sun Sep 19, 2004 1:06 am

Al wrote:
kingcorolla wrote:maybe for a road AND track car, u could run a switch from the microswitch on the throttle, controllable from the cockpit?


Yep they come with those afaik.

The only thing with a wet kit is you really have to purge the lines before you use it :twisted: Got track intimidation 8)


ye good call al, fast & furious styles. Definate track intimidation. :D

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Postby Monsterbishi » Sun Sep 19, 2004 6:27 am

Best thing about a car having a NOS purge - your wallet gets instantly lighter when you realise how many dollars of gas you've just fired out of the car without even moving...

A decently setup wet system in a MR2 won't need a purge valve, as the plumbing between bottle and nozzle would be so short, a small gas pocket would be trivial.
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Postby ants_ae92 » Mon Sep 20, 2004 3:42 pm

Well Im here in Auckland so any places in Auckland to do it, would be good. Not sure on whether A 50 or 75 shot of Nitrous would be the go.

4age should be good for a nother 50 hp. If not there are other higher flow 4age injectors. Standard big port = 185 cc
Small port 16v = 235 cc
Small port 20v = 295 cc

So for a dry kit, you have to rely on the fuel management system to supply the extra fuel, but with a wet system you don't have too?
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Postby Al » Mon Sep 20, 2004 4:39 pm

ants_ae92 wrote:So for a dry kit, you have to rely on the fuel management system to supply the extra fuel, but with a wet system you don't have too?


yeah dry system just injects nitrous pre throttle body so your injectors have to inject the extra fuel that the nitrous is going to consume

wet system takes a feed line from your fuel filter and is solenoid controlled to inject the correct amount of nitrous for the amount of extra fuel its drawing and then injects pre throttle body the fuel + nitrous mix :)
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Postby kingcorolla » Mon Sep 20, 2004 8:21 pm

.. so a wet kit, has a FUEL feed, and a NOS nozzle, both pre TB?

so the amount of NOS is injected throught the nozzle, there is a sepaerate INJECTOR that is being contolled by amount of NOS? or the other way round?. and the both are pre TB? eg. separate injector, and separate NOS nozzle?

im guessing a wet kit is more efficient for race conditions.
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Postby Al » Mon Sep 20, 2004 8:28 pm

kingcorolla wrote:.. so a wet kit, has a FUEL feed, and a NOS nozzle, both pre TB?

Yes.
so the amount of NOS is injected throught the nozzle, there is a sepaerate INJECTOR that is being contolled by amount of NOS? or the other way round?. and the both are pre TB? eg. separate injector, and separate NOS nozzle?

There is a seperate solenoid for each the nitrous and fuel and are plumbed in at the same spot with two different nozzles.

Wet kit is more challenging to install from what I've read, but the ZEX kit is supposedly a piece of piss.

Dry is supereasy to install.
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Postby ants_ae92 » Tue Sep 21, 2004 11:48 am

Zex Kit is probably the way to go for me then. The 235cc 4ag injectors should be able to supply the extra fuel, but I wont know for sure til I talk to the specialsits.

I guess more research is needed. Thanks alot Al
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Postby Leon » Tue Sep 21, 2004 1:00 pm

nb: you can use Nitrous on the drag strip, but not on the race track. It is not an approved fuel for use in any MotorSport NZ event.
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Postby Monsterbishi » Tue Sep 21, 2004 1:29 pm

Leon wrote:nb: you can use Nitrous on the drag strip, but not on the race track. It is not an approved fuel for use in any MotorSport NZ event.


Technically it's not a fuel, petrol is the fuel...
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Postby Rollux » Tue Sep 21, 2004 2:25 pm

JiNX wrote:Technically it's not a fuel, petrol is the fuel...


Depends if they class oxygen as a fuel.... :lol: But you would have a very good debate over that one!
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Postby matt dunn » Tue Sep 21, 2004 8:14 pm

Leon wrote:nb: you can use Nitrous on the drag strip, but not on the race track. It is not an approved fuel for use in any MotorSport NZ event.


From what I understand you cant even run at a MSNZ event if the lines and stuff are still there but you have taken out the bottle.
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Postby FLAWLES » Wed Sep 22, 2004 6:32 pm

rite told you i would post back

here we go

dry system

means that the fuel required to make additional power with Nos will be intorduced through the through the injectors" remeber fuel makes power nos simply lets you burn more of it " this keep the upper intake dry of fuel. you xcan accomplish this by two methods first is to increase the press to the injectors by applying nitrous press from the soleniod assembly when the system is activated this causes an increase in fuel flow, the second way is u can add the required fuel is to increase the time the injectors stays on

WET system

this includes nos and fuel at the same time and place " normaly 3-4inc ahead of the t/b "this type of sys will make theupper intake wet with fuel " plane and simple " this is good for supercharged and turbod cars
the reason for this is the fact that fuel flowsdifferntly than air of nos this can lead to intake backfires etc because modern fuel injection intakes are designed to flow air only they have tighter turns and more compact desgin as a result thus they generally do not make good candidates for wet flow nos systems

DIRECT PORT
name says it all i dont need to get in to it

any other Qs

oh by the way this is out of my Holley/Nos " the brand nos " 2000 catologe its got heaps of q & as in the back just ask me
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Postby No_Halo » Fri Sep 24, 2004 4:49 pm

Well i say, if you have the money and want a more reliable setup, go for the direct porting. I have a 100hp shot ported through my manifold and apart from the lines getting blocked (due to lack of purging) i have had no probs with my Nos. The timing on my engine has been changed, but nothing else has been touched.

With the direct port system, it distributes the nos and fuel into each intake port on your engine, which makes it extremely powerful and just as accurate. The power is coming from your fuel itself as your engine is getting supplied additonal fuel, so you also need to make sure your fuel system can keep up with the extra amounts of fuel going through it, if it can't you will need to change this, otherwise there is no point in having nitrous put through because it won't make a difference.

Also if you go ported, make sure the person doing it knows what he is doing as this is the most difficult kind of Nos setup as you are acutally having to drill into the engine area.

:lol:
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Postby FLAWLES » Fri Sep 24, 2004 6:19 pm

lines blocked??? more like mosture in the lines this would cause probs
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Postby Al » Fri Sep 24, 2004 8:28 pm

No_Halo wrote:Well i say, if you have the money and want a more reliable setup, go for the direct porting. I have a 100hp shot ported through my manifold and apart from the lines getting blocked (due to lack of purging) i have had no probs with my Nos. The timing on my engine has been changed, but nothing else has been touched.

With the direct port system, it distributes the nos and fuel into each intake port on your engine, which makes it extremely powerful and just as accurate. The power is coming from your fuel itself as your engine is getting supplied additonal fuel, so you also need to make sure your fuel system can keep up with the extra amounts of fuel going through it, if it can't you will need to change this, otherwise there is no point in having nitrous put through because it won't make a difference.

Also if you go ported, make sure the person doing it knows what he is doing as this is the most difficult kind of Nos setup as you are acutally having to drill into the engine area.

:lol:


For a standard 4age that will prolly take a 75 shot AT MOST, direct porting is a massive overkill.

If it was my 4age id go for either a dry 50 shot or a wet 75 shot :)

For my mr2 ill be looking into a wet 75 shot 8)
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Postby FLAWLES » Sat Sep 25, 2004 11:19 am

75 shot thats wot im looking into for my ze ha im just trying to figure out were to slap the inlet for the nos befor the s/c or after the sc and i/c mmmmmmm any help people???? :?

and u do have to retard your timing abit az well az run a diff heat range plugs........ just thought i would though this into the mix 8)
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Postby Al » Sat Sep 25, 2004 7:54 pm

FLAWLES wrote:and u do have to retard your timing abit az well az run a diff heat range plugs........ just thought i would though this into the mix 8)


I'd be inclined to not retard the timing, because you have a knock sensor, if it knocks it will retard timing for you.

Yep I've already mentioned what plugs to use on a 4age in one of my first posts :) Generally just normal copper plugs that are one heat range lower than stock. I run NGK BKR7E's :)
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