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Discussion Starter #1
so, if you take a stock truck, and put on a straight pipe, and about 100hp shot of juice, what will egts do?

this is on a 5 spd truck. how do the cummins handle hits of nitrous when prettymuch stock?
 

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it depends on the year of the truck..the 05s had the plastic I/C boots that burst off
 

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You may gain 15hp. Nitrous is an oxidizer and only helps burn any excess fuel that the turbo can't. I wouldn't waste the money on nitrous if your under 550hp.
 

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A 100hp shot will probably kill a stock truck as it would just put the fire out. You need a LOT of fuel if you want to run the hose.

Also realize that N20 effectively advances the timing and you get some power gain from that.
 

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The forced air makes more compression, just like boost does, therefore it starts the burn quicker.

Granted on stock fueling it would make this happen much less severe but, it still does advance the timing.
 

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Gotcha. Either way, it's a waste of money. If you wanna drop egt's (which on a stock truck shouldn't be a problem) then get an intake and exhaust and an EZ.
 

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Discussion Starter #9
okay.


so, now, lets throw a adrenaline box on it with a new fuel pump, and some ddp 150 injectors.

so, with that much fuel flow, nitrous would then be affective right? and it would lower egts? but i heard you can overspeed the turbo if you spray a lot on the stock turbo.

how much boost can the stock hx35 push until it is in the danger zone?
 

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okay.


so, now, lets throw a adrenaline box on it with a new fuel pump, and some ddp 150 injectors.

so, with that much fuel flow, nitrous would then be affective right? and it would lower egts? but i heard you can overspeed the turbo if you spray a lot on the stock turbo.

how much boost can the stock hx35 push until it is in the danger zone?
Ok, I don't know if there is a set limit but, I am a N20 junkie myself and have been for years even when people that N20 would not work.

So with that said we need to get 1 thing out of the way. Nitrous is NOT going to cool egt's. Think of N20 as Oxygen. Ever used a cutting torch? Get something hot and then throw Oxygen on it and it gets HOTTER. That is how a cutting torch works.

Now, in your application I do not see that it is going to make a significant increase in egt but, it certain is not going to lower egt.

Here is what I would do. If you have a box like the Adrenaline you probably have enough fuel for something like a .092 pill or something. Or on a 2 stage setup something like a .030 pill and a .040 pill. I did not do the math but, it seems like a reasonable starting point. Look at the nitrous like a turbo in a bottle, it is just going to make darn sure the fuel you have in the cylinder gets burned and gets burned sooner in the powerstroke.

I would take and wastegate my stock turbo to something like 35psi. Make darn sure the wastegate opens or you will spit the impeller out of the exhaust. While you are not going to be driving your turbo with the extra exhaust you are creating you will be prividig air via the bottle. Not the most efficient way to do it but, it will work. Just let the turbo do what it can and let the rest go out the tailpipe.

With a stock charger, 150's, Adrenaline and N20 you should be able to knock on 525rwhp. It would be a terribly inefficient 525 but, I think it could be done. It would also have extreme amounts of torque because of the bottle, I am guessing in the 1200 ft lbs range or more.

How long the charger lasts is a guess and depends on how often you beat on it and how easy you come in and out of he throttle and on and off the bottle.

If you put a good charger on it with the bottle you should be in the 600's easy.
 

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I would hate to see the drive pressures on a 35 with that much fuel and then nitrous. Your going to need a HUGE external gate on that thing to help exhaust all of that fuel. The factory wastegate on the 35 just won't be able to handle that much exhaust. You'd be better off in the long run (running nitrous on a stock 35 with that much fuel is like poking a grizzly with a stick, bad idea) to go ahead and get a different charger to help keep your egt's in check and help your engine live longer.

For a reference, a buddy of mine lays down 580(+/-10hp) something on fuel only I believe with a 35/s400 twin combo. With that he's hitting 60-65psi of boost. On nitrous he's only doing 620hp (100hp shot of nitrous) yet his boost is pegging 80psi and that's with this blow off valves set at 60psi. It's completely blowing past everything and he's only picking up 40 or so hp.

Nitrous is a great thing but you have to respect it because it will break stuff really quickly. If your looking for an egt drop then try water/meth. Easier on parts and will cool egt's and add 50hp or so.
 

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Mark Ward
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On my silver 62 with 150's, i used a 100 shot and lowered my egt's about 50 degrees. BUT i would not recomend it on a stock truck or turbo.
 

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IIRC, the silver series turbos are more setup for nitrous with the big exhaust wheel and housing.
 

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Another thing to consider about nitrous is the $$$ to refill the bottle. With water/meth you can buy $1 windshield washer fluid and use it. Most guys actually use their windshield washer reservoir as the tank for their water/meth.
 

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true Im picking up alot on a small shot of nitrous just because my hx50 has a big exhaust housing and wheel. with just a .63 jet I picked up a whole second in the qaurter mile.:peelout
 

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A whole second is very impressive. I'll bet you've got the fuel for it also.
 
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