Competition Nitrous the "right" way....

[Hohn]

Hohn--did anyone answer your original question per your needs??? I don't want to go and reread everything---chris

Mostly.

I just wanted to know what I needed to be able to stretch my stock HX35 to 500hp while limiting boost to 35psi or so. I'm not sure if the weenie wg can bleed off that much energy.

I'm trying to get another 100hp worth of O2 into the engine without swapping turbos.

I want the system to be simply Hobbs-switched when armed. Boost comes up to 35 psi, the WG pops open and BAM the squeeze flows and EGTs drop.


So, with than in mind what do I need to pull this off? This is a STREET truck and it will be used as such-- the nitrous is just to let me use the fuel I have for short blasts.

Could anyone post a parts list for this? Orifice size for 100hp? Plumbing diagram? Etc etc... .

Thanks if you are the one to provide such.

Justin

 

[Cooker]

I want the system to be simply Hobbs-switched when armed. Boost comes up to 35 psi, the WG pops open and BAM the squeeze flows and EGTs drop.

Justin,

Sorry if this was brought up earlier, but do you think the WG is going to be able to bypass enough air to keep the boost at 35psi.

 

[csutton7]

I'd start with a small jet size and work up from there --jets are cheap also---where do you plan to inject--at the intake horn???--that's where mine is(on the side)---sorry if this a repeat from someone's earlier post and sorry for not being specific, but my truck is way different than yours--good luck and have fun---chris

 

[Turbo Thom]

500HP with a HX35 at 35 lbs 0 boost, you don't want much.

 

[RCenters]

I was talking to dennis yesterday about when he first started and how much HP he was making with a HX35 , so im going to try that sence i sold my T70 , im doing a 2 stage B4 I/C and after jets will b 80+ 1st then 60 to 70 on 2nd , depends willl b on the dyno to c what works , also will b useing a 50mm gate

and changing turbine housings

 

[GiesJ]

Justin - what are your thoughts on this lately? Are you planning this as a mod at 6K feet elevation or sealevel? I like the idea. Keep me posted.

Thanks,

j

 

[Hohn]

My thoughts are these:

Bombing on my truck is on hold for two years. Truck is staying stateside while Uncle Sam sends me to Hawaii.

Meanwhile, all my WAM is spent-- see my other thread for details.

 

[GiesJ]

Hohn -

tried to PM, your box is full.

 

[HeberRam]

My experience

I like Keith Locklier, Maddog, Chris Sutton, and HVAC and some others, made our own Nos systems before ready kits were available. They can be put together cost effectivetly, or more, depending on the bells and whisles. I'm putting one together again for my 05'.



Hohn, first of all, you will need a strong turbo. The HX35, or even a HX40 shafts, are too small to take too many hits with the NOS. You can get by with a single nozzle and jet, but I prefer a two-stage system. The system I design uses two different Hobbs, or pressure switches, set at two different boost settings. The idea is to ramp up the power in two stages with adequate fuel, as to not "hammer" the turbo and the drive train all at once. I use a smaller jet on the first stage, and a larger jet on the second. As you back-off the throttlel, boost will decrease and Nos will automatically shut-off once it gets below the Hobbs set point. Each set-up will be different, depending on your turbo, injectors, fueling boxes, drive-train etc. So jetting is crucial for different boost levels, and fueling. The only real way is to dial the jetting on a Dyno, tweaking different sizes and combinations to get the desired results. With NOS, more does not mean better.



My homemade design, will be a little pricy, and comparable to the kits out there, however, mine will have the ability to, arm, purge, heat and remotely open the NOS tanks from inside the Cab with a single 2-1/16" round gauge type switches. In addition, I will have a digital 2-1/16" round Nos gauge in Cab to monitor the pressure. The dual tanks will be mounted in the rear truck bed for safety, ease of filling and "stealth".



I'm not trying to achieve 800-1000hp with my set-up, around 600 hp on diesel and another 125-150 on NOS. My truck is not set-up for truck pulling, simply, drag racing and road rage. :-laf :-laf



There are a lot of NOS kits out there for diesels that are good, I just prefer to make my own with the features I desire.

 

[Graphic man]

i am also thinking of running NOS... ... i didn't read the whole post but i didn't see anyone saying if a stock head gasket with studs would hold the extra pressure... ... see sig. for my set-up, i am already running 45-48 PSI



Scott

 

[Turbo Thom]

Scott... ... ... ... I would say you have gone to the limit with the stock gasket. Studs clamp tighter, but what I've found is that it's not the clamp as much as the gasket itself. Now that's not completely true either. What I've seen is down the side of the gasket on the manifold side, the heat from the exhaust, "dries out" the gasket. It gets brittle. Extra pressure from boost works on the weakness. Now some will say I'm full of it, and maybe so. Still I think the gasket in its stock condition, can't hold the pressure. If it has any age on it, the heat has already worked on it. The 12V head gasket is good to a point but it stops there. You need an O ring or fire ring job to really seal it.



. . Preston. .

 

[CUMINNTSTRKN]

I like Keith Locklier, Maddog, Chris Sutton, and HVAC and some others, made our own Nos systems before ready kits were available. They can be put together cost effectivetly, or more, depending on the bells and whisles. I'm putting one together again for my 05'.



Hohn, first of all, you will need a strong turbo. The HX35, or even a HX40 shafts, are too small to take too many hits with the NOS. You can get by with a single nozzle and jet, but I prefer a two-stage system. The system I design uses two different Hobbs, or pressure switches, set at two different boost settings. The idea is to ramp up the power in two stages with adequate fuel, as to not "hammer" the turbo and the drive train all at once. I use a smaller jet on the first stage, and a larger jet on the second. As you back-off the throttlel, boost will decrease and Nos will automatically shut-off once it gets below the Hobbs set point. Each set-up will be different, depending on your turbo, injectors, fueling boxes, drive-train etc. So jetting is crucial for different boost levels, and fueling. The only real way is to dial the jetting on a Dyno, tweaking different sizes and combinations to get the desired results. With NOS, more does not mean better.



My homemade design, will be a little pricy, and comparable to the kits out there, however, mine will have the ability to, arm, purge, heat and remotely open the NOS tanks from inside the Cab with a single 2-1/16" round gauge type switches. In addition, I will have a digital 2-1/16" round Nos gauge in Cab to monitor the pressure. The dual tanks will be mounted in the rear truck bed for safety, ease of filling and "stealth".



I'm not trying to achieve 800-1000hp with my set-up, around 600 hp on diesel and another 125-150 on NOS. My truck is not set-up for truck pulling, simply, drag racing and road rage. :-laf :-laf



There are a lot of NOS kits out there for diesels that are good, I just prefer to make my own with the features I desire.

What do you know about nitrous? :-laf



Jim

 

[HeberRam]

My Mentor "Cummintstrkn"

What do you know about nitrous? :-laf



Jim

Jim, you old "coot", what have you been up to... . ???? I must admit to everyone, that you introduced me to the nitrous one day, and the way Jim did it was to stand outside the truck on the dyno with a bottle in one hand, someone else revving the truck, and Jim would just open the bottle full blast. . :-laf :-laf :-laf Another time, he showed me how you don't need a bottle warmer, and put the nitrous bottle in a pan of water on the stove, turned the stove on, and we went outside to hook-up some lines on my truck... we forgot about the bottle, Jim went inside and the gauge was pegged at 1600 psi. . Holy S@#T !! The good news was He caught it in time before it exploded. . :-laf Thoses were the good old days I'm sure glad Jim you didn't show me how to make PIZZA.

 

[CUMINNTSTRKN]

Steve those were the good old days. I'm glad you made it back to the main land.



Jim

 

[MADDOG2]

Steve those were the good old days. I'm glad you made it back to the main land.



Jim

The good old days are when the two of you helped out a lost soul with a piece of crap powerstroke.

 

[csutton7]

yes those were the good ol days----



Jim and Richard--good to hear from you guys--hope all is well... ... chris

 

[TAlbiston]

i am also thinking of running NOS... ... i didn't read the whole post but i didn't see anyone saying if a stock head gasket with studs would hold the extra pressure... ... see sig. for my set-up, i am already running 45-48 PSI



Scott

I run a stock head, head gasket, 12mm studs and alot of NOS! And no problems. I'm also about 55psi. Oo.

 

[HeberRam]

The good old days are when the two of you helped out a lost soul with a piece of crap powerstroke.

Richard, I had forgotten that "little" trip to tulare. Jim even got a ticket. Four trips to Bakersfield and back, 20 hrs. on the road how could I have forgotten that. . looking back at it was kind of funny.

 

[CUMINNTSTRKN]

Yeh who would of thought you can get a ticket for flat towing a FURD at 80mph on the interstate?



Jim

 

[rivercat]

how bout the eye watering cloulds of fumes assosiated with a top fuel run ! 11 or more gallons burned in less than 60 seconds