Nitrous

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dhorsman2000

Member
allright I know I'm going to get ridiculed and heckled and told to search the site before asking a question :lol: But I have searched and haven't been able to find a good answer for my ????

Is anyone currently running nitrous? To what degree/benefit? I have a good running low 13's and I was wondering if adding the laughing gas would get me into the 12's. What is a good kit to use?

Thanks and any info would be greatly appreciated,
Dewey
 
sytyguy

sytyguy

Moderated User
Re: Nitrous

You'll find guys on here who have used it with good results (myself, Waller, Philip Long, etc...), but the general consensus is to stay away from it at all costs. Most people would spray too much or do a hack job of setting it up and it's not worth the risks, when you can get more power from our trucks by simply turning up the boost (this assumes a properly set up truck to handle additional boost).

I ran a 35 shot to help cool the intake charge and help my top end a little. It was quite beneficial, but I yanked it in favor of methanol injection and higher boost. I just had more access to alky/meth than nitrous.

Hood
 
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dhorsman2000

Member
Re: Nitrous

See thats what I was thinking as well (lower intake temps) and another couple ponys at the trans couldn't hurt either. hehehe
 
sytyguy

sytyguy

Moderated User
Re: Nitrous

I will say that I had to accomodate this small shot with a fair amount of fuel, so unless you're capable of chipping, you'll only have the FPR to adjust fueling by. And don't even consider a wet kit.....our manifolds aren't designed to flow fuel.

My advice (for what you're looking for) is don't use it. First off, it's easy to get the numbers you desire via traditional methods that retain stock appearance and don't require you to refill them every so often. Secondly, you could lose a lot of respect from the racing crowd in your area when they find out you have nitrous. It won't matter to them that you're only spraying an XX amount or that it's only for certain usage.

I'd look into other things to get you out of the 13's (3 bar chip, more boost, etc....).

:2cents:

Hood
 
NecroWolf

NecroWolf

lost marbles member
Re: Nitrous

i think it's cloneman is running into the 11's with spray. i keep wanting to do it but the kit i wanna run is expensive
 
MRKING

MRKING

New Parts for Old Trucks
Re: Nitrous

sytyguy said:
And don't even consider a wet kit.....our manifolds aren't designed to flow fuel.

Hood
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What besides porting is needed to overcome that . Down the road I have a wet kit planned ,and want to do it right . You care to explain what has to be done to use a wet nitrous kit successfully ?
 
NecroWolf

NecroWolf

lost marbles member
Re: Nitrous

i think one of the NOZsle kits would work good since it's basicly a direct port kit
 
MRKING

MRKING

New Parts for Old Trucks
Re: Nitrous

I looked at them also , but I am not a fan it all being out in the open . *Hidden* is what I am after . Is 30+ psi really safer on a motor than 18-20 psi with a 50 shot ?

Since this has been used effectively in the past ,I hope it can be brought to light here so future searches yield good info . All I have found on the topic from searches is " evil , bad , dont waste your time , ricer , turn up the boost ,retard 2 degrees timing, and kaboom."Not real helpful .
 
myclone

myclone

Donating Member
Re: Nitrous

You can run a 300hp shot on a syty but like Hood said you MUST know what youre doing and be more than capable of chipping the truck to use it.

N20 is absolutely positively NOT for ppl in the syty crowd that want to bolt it on and go like the mustang/f body guys can do. If you REALLY know your way around N2O, syty fuel/ignition systems, and chipping sytys then by all means you'll go fast and prolly not scatter the motor (well, until you get greedy like all gear heads do ;) ).
 
sytyguy

sytyguy

Moderated User
Re: Nitrous

myclone said:
You can run a 300hp shot on a syty but like Hood said you MUST know what youre doing and be more than capable of chipping the truck to use it.

N20 is absolutely positively NOT for ppl in the syty crowd that want to bolt it on and go like the mustang/f body guys can do. If you REALLY know your way around N2O, syty fuel/ignition systems, and chipping sytys then by all means you'll go fast and prolly not scatter the motor (well, until you get greedy like all gear heads do
icon_wink.gif
).
Click to expand...

Exactly. My hesitance against endorsing N2O for our trucks stems from the lack of thought put into installs by the novice that might read this board. Most people see realworld gains from other cars/trucks and think they'll apply with the same magnitude and simplicity on our application. Just not so. Put the necessary homework in and learn to "really" tune your truck (not just change plugs and fuel pressure), and N2O can be very rewarding. Just not a bolt-n-go kinda thing, ya know?

Manifold-wise....can't say that I've got any hard evidence to dictate what our intakes do with fuel going through it, but it has been mentioned before and many have commented on the atrocious design of our intakes (when referring to wet-flow). And, I'm sure some will mention other "dry" intake cars that run wet N2O systems w/o issue (TPI, LT1, LS1, PFI 5.0Ls, etc...), but I have yet to see a "dry" intake as un-symmetrical as our intake. It just doesn't lend itself to good fuel distribution. And being unsure isn't what you want when talking N2O IMO.

Hood
 
D

dhorsman2000

Member
Re: Nitrous

Since this has been used effectively in the past ,I hope it can be brought to light here so future searches yield good info . All I have found on the topic from searches is " evil , bad , dont waste your time , ricer , turn up the boost ,retard 2 degrees timing, and kaboom."Not real helpful .
Click to expand...

That's why I posted this thread, Syty Guy I can totally hear where your coming from, however I am a ASE certified mechanic and work on cars all day long. I have the tools and the ability to proprerly "tune" a car (with a little help in the chip programming dept.) I use a Snap On graphing scanner to "datalog" the truck which works the same as datamaster (I think) except I cant transfer the info from the scanner to a computer to Email etc. I truly think that NO2 could be benificial, under the right circumstances and done right, just wanted to see if anyone has done it right so far......
 
It's just a six

It's just a six

Super Member
Re: Nitrous

sytyguy said:
I ran a 35 shot to help cool the intake charge and help my top end a little. It was quite beneficial,.Hood
Click to expand...

So, how benificial was it?
What type of sprayer did you use, fogger nozzle?
If I remember correctly Torry ran like a 30-50 HP jets & dynoed it & the outcome was more like 80 HP
What was your ET improvement?
:tup:
 
dgoodhue

dgoodhue

BuSTeD 4.3
Re: Nitrous

dhorsman2000 said:
allright I know I'm going to get ridiculed and heckled and told to search the site before asking a question :lol: But I have searched and haven't been able to find a good answer for my ????

Is anyone currently running nitrous? To what degree/benefit? I have a good running low 13's and I was wondering if adding the laughing gas would get me into the 12's. What is a good kit to use?

Thanks and any info would be greatly appreciated,
Dewey
Click to expand...

You have a 13 second truck and want to runs 12's. You can run 12's with a Sy (mid) and Ty (high) with minimal mods.

If you have the stock turbo, you will need an external wastegate to run N2O, it will overboost with the stock one. As other here have said you won't have very good luck with wet shots because of distribution. The people that have had success have used custom chip fueling programs. While a scan tool is nice, it doesn't fueling, it does read each cyclinder with the O2 sensor, it average all 6. It you have one rich and one lean it could think that its fine. (same goes for wideband o2) I amagine a wet direct port nitrious kit, could have some sucess with a SyTy.
 
sytyguy

sytyguy

Moderated User
Re: Nitrous

Waller did have a 6 port direct fogger system on his, and (other than maybe a plenum spacer) this is the method I would suggest for those interested. This way distrubution isn't an issue and you can really get uniform gains. However, IIRC the smallest individual jet he could find was a 20 shot, so he wound up having to fit the truck with a 120 shot (20 x 6). There may be smaller ones available now, but that was the case back then ('99-2000). He may chime in here with his experience.

I wasn't doubting you specifically dhorsman2000, rather the average noob that might browse the forums looking for that "super mod", which N2O can appear to be. Just wanted to state some major drawbacks for our application before someone grenades a perfectly good engine.

My gains? No dyno sheet, but had a couple of track trips (1/8 mile) and I ran .2.-.3 faster and gained a few mph with it on there. However, I'm not the best example because my truck was undergoing some various mods back then (and I was really nailing down chipping at that time), so it's hard to say that N2O was directly responsible for those gains. I have no doubt that it was quite beneficial, just not sure exactly how much it can be credited with. The cooling effect was very noticeable though, as MATs fell rapidly when N2O was applied. Not the same type (gradual & persistent) of drop you get from methabol, but very impressive nonetheless.

Hood
 
D

dhorsman2000

Member
Re: Nitrous

Thanks Hood, I think I'm going to start doing the general beginer mods, ie. AFPR, chip, bigger injectors, bigger turbo, etc. before I go playing with NO2. Got the truck last spring and it ran like crap, got it running pretty decent now, after a lot of time and $$$. I already have 50# injectors in it, got home one day and smelt gas, pop hood and find leaking stock injector. So now I have to get the afpr, should be before spring. The one question I do have is do you all think I should do the bolt on stuff first and then have someone program a chip for the truck specificaly. Or should I buy a 10 in 1 and adjust it accordingly with the installs I do????
 
HotRudyRod

HotRudyRod

New member
Re: Nitrous

In regards of the unasymetrical manifold affecting n2o/fuel distribution i've fixed that on carburated turbo and N/A Jettas/Golfs/Rabitts since there isnt an injector plate that fits them by just drilling a hole for a single wet fogger on the bottom side and aiming it towards the back of the manifold against the rear wall. It hits the wall, mixes and gets sucked into the air stream again goin on even ammounts into each manifold leg.
Now the Sy/Ty manifold is a little different i know but installing a single wet fogger on the exit of the IC like the alki kits but aiming it back into the IC, kinda like "the pissin against the wind" theory would help the fuel and n2o mix and evaporate a lot better before it goes into the manifold. NOTE: Installing the fogger backwards againts the stream will eventually clog the gas duct of the fogger with fine dust that makes it pass the air filter or from a turbo main bearing/seal thats shot, even more so if you live in a "dusty enviroment", so you'd wanna clean it as often as needed.
This is the way i see it and of course some people wont agree here but well, your completely free to give it the importance you want and take what you think it's useful.

P.s. Im completely agreein with Hood on not endorsing its use as a bolt one on and go race thing and should always be used responsably and realistically, someone somwhere here mentioned that 30hp turned into 80 at the dyno so well always have that fact in mind. Shane Whitescarver from NOS Tech told me once to be very careful with boost and n2o cause its super cooling effects, it'll at least duplicate the advertized hp of the jet.
 
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