turbo+nitrous?

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Jan 12, 2008 | 05:11 PM

SPOOLIN Z28

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From: LAS VEGAS, NV

turbo+nitrous?

was thinking about adding a little shot to my setup...i have a freshened up ls1..using better bearings and all arp hardware...i am currently running 8lbs of boost with a .70 trim turbo..have fuel mods...wideband...zo6 cam..would it be ok to use a little nitrous for track use...what should i run...wet or dry...how much will too much be? any input will be helpfull

Jan 14, 2008 | 12:05 AM

Nitro Dave's Nitrous Outlet

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From: Waco, TX

Give me the run down on your engine set up. You could spray a little shot just for the cooling affect alone.
Dave

Jan 14, 2008 | 10:57 AM

Big Geek

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Wouldn't hurt a thing. Did it on my Grand National and Turbo T for many years. I prefer a wet shot but I am sure Dave and them can fix you up with something. If you decide to use a dry shot and you are blowing the compressor side of your turbo through the MAF just make sure to plum it a couple of feet from the MAF so as to allow it ample time to mix with the incoming air from the turbo. You would be surprised at how much a 50-100 shot will do. Don't let anyone ever tell you that turbos don't like nitrous. I always had a blast with mine and it never matters how hot it is at the track because it is always the same temp in that bottle.

Jim C.

Jan 14, 2008 | 11:17 PM

SPOOLIN Z28

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From: LAS VEGAS, NV

Thanks For The Info Guys...the Engine Was Jus Rebuilt Using All Clevite Bearings All Arp Hardware...engine Had Right At 20,000 Miles When Rebuilt...i Pulled It Out Of A Wrecked Camaro...should I Run A Wet Or Dry Kit...i Have A Fuel Solenoid And A Few Lines...would I Need To Tune It If Its Jus A Small Shot?

Jan 15, 2008 | 07:31 AM

Big Geek

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From: Montgomery, AL.

Quote:

Originally Posted by SPOOLIN Z28

I personally would just use a small dry shot well ahead of the MAF in order to let it mix with the incoming air. As I previously stated it makes for a GREAT intercooler. In this case it doesn't so much work as a power adder but as a supplement to the main power adder by cooling the IAT's and we all know just how much turbos like the cold air. I personally would use an FJO controller and one of Nitro Daves dry shot kits. I would ramp the nitrous in slowly as the RPM/boost increased. Progressive nitrous did some wonderful things for my GN. I also put together a kit using alchy on the fuel side of a wet kit and I was able to run much more timing than usual in addition to spooling a larger turbo than I needed with ease. (I realize this part was off topic but thought I would toss it in there anyway.) Please keep in mind that this is just my opinion and there are many trains of thought regarding this subject. Hope this helps.

Jim C.

Jan 15, 2008 | 08:03 AM

TARZAN

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From: Memphis Area

What kinda HP is your car making right now? Don't want to push those stock parts *too* hard.

Also, what is you current fuel system? I'd probably advise a wet kit, simply to keep the extra strain off your injectors (since the boost already calls for loads of fuel). A nice lil 50 shot, from a single nozzle, would probably net you 60-75 HP gains on the dyno, and as Dave already said, offer some nice cooling effects for those otherwise warm IAT's.

I have run a 50 shot on my GN for awhile now, with no problems, and the car LOVES it.

-Will

Jan 15, 2008 | 08:39 AM

SS101

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how about direct port?? pros? cons?

honestly, i've been thinking about it but too nervous to try lol

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Jan 15, 2008 | 01:31 PM

TARZAN

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From: Memphis Area

SS101, a DP would work, but I like the idea of a charge, before the intake, to help cool everything down on the way in...

Spoolin, I'd get it tuned, with boost+juice on a stock motor, every lil bit counts

-Will

Jan 15, 2008 | 03:13 PM

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SPOOLIN Z28

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Launching!

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From: LAS VEGAS, NV

So A Dry Shot Should Be Oke How Many Inches Before The Maf? Should I Use A Progressive Switch?

Jan 15, 2008 | 04:17 PM

#11

TARZAN

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From: Memphis Area

Honestly, I'd talk to your tuner and get their advice, as to which one they'd rather tune

-Will

Jan 15, 2008 | 04:21 PM

#12

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From: Montgomery, AL.

Quote:

Originally Posted by SPOOLIN Z28

So A Dry Shot Should Be Oke How Many Inches Before The Maf? Should I Use A Progressive Switch?

As far after the intercooler but before the MAF as possible so as to give it time to mix with the incoming air charge. The progressive switch would depend on the total amount you plan to use. I personally would use one and start it out at say 10-hp at the rpm where your boost begins to come in at then smoothly ramp it up to 50 at the rpm when you are making full boost. Just make sure to keep a close eye on your O2's. Pull some timing out if possible and then ease it back in depending on the O2 count. Another way to do it would be to start it with a 10-hp shot and ease it up to 25-hp. If all is good ease on up 5-10hp at a time until you get to 50-hp. That is the reason I reccomend the FJO controller. I wouldn't go more than 50-75hp so as to give the stock parts some leaway. Hope this helps.

Jim C.

Jan 15, 2008 | 04:24 PM

#13

Big Geek

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From: Montgomery, AL.

Quote:

Originally Posted by SPOOLIN Z28

It really depends on how much power you are making. Again keep a close eye on the O2 counts. You will be fine with a progressive 50-shot so long as you keep the RPM within reason and most importantly detonation free. Just remember there is only so much cylinder pressure the stock pistons will take but like I said keep the boost and nitrous reasonable and you will be fine.

Jim C.

Jan 15, 2008 | 04:31 PM

#14

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From: Montgomery, AL.

Quote:

Originally Posted by SS101

how about direct port?? pros? cons?

honestly, i've been thinking about it but too nervous to try lol

A fogger or (direct port) is a wonderful thing if you are trying to spool a very large turbo but in the case of our cars, particularly street oriented cars a simple dry shot for intercooling is going to serve you best.

As soon as I get mine in the car and the 88-mm hooked up I will be using both N2O and alchy as I have done many times on my GN to be able to run stupid amounts of timing in comparison to straight race fuel and keep a nice clean burn in the cylinders. The key to that combo is in the ignition.

Jim C.