EREBUS

Before I go with a Weistec supercharger, I want to spray. What do you think would be the safest HP spray amount for the mile run? I have refused to use NOS in the past because I thought it was a crutch to get to speed. I have recently found out that nearly 1/2 of the racers at the Texas Mile are on the juice. Even though their profiles show otherwise.......

TheOtherDodge

I used to run nitrous alot on a Challenger I had. They key to nitrous is the same with a blower/turbo... Keep the timing low and don't let it get lean!

Being a supercharged vehicle already, a small shot of nitrous will give a bigger result because of the cooling affect of nitrous. So be cautious on the shot amount. Error on the cautious side and run conservative timing and a little more rich.

As for how much to use or wet/dry or jet sizes, etc., I don't have any experience with this on these type of motors so hopefully others that do will chime in.

Good luck!

chawkins2001

I run a wet system that have the following features:

window switch, determine what rpm it comes in and what rpm you want it to stop spraying
progressive shot so you can adjust how hard to easy it hits
a 32/18 nozzles at 900psi of bottle pressure made 50rwhp/110rwtq on my setup.
gear lock out feature

Dynotune has the best nitrous gear IMO bro.

shardul

iTrader: (1)

about 5 years ago my car was on the dyno and during a run we opened up a bottle of nitrous about 6 feet away from the front of the car and the instantly picked up about 45 rwhp

johnnyblaze

Isnt your engine built? You probably can handle a bigger shot if you wanted to.

I, personally, added this to my setup. I'm using a WOT switch and only do nitrous pulls in second gear.

http://www.summitracing.com/parts/nex-15009

With its own dedicated fuel pump with a safety switch. That way I'm not relying on a older fuel system to make sure I dont lean out the mixture.

You can pretty much do what Craig said above, he did that on a stock block and it worked really well for him.

sircl55amg

like this ....

Hulk

Lmao, crazy

03svtkiller

My buddy runs a 100shot on his 06 E55 he hasn't had any issues he's got all the goodies that come with the kit etc

HeissRod

Sidepipe on a Cobalt?

EREBUS

^^^^this is what I don't have. That is why I'm nervous about using NOS. lol


Thank you, brother. I'll will check into a similar set up, then. I'm not looking to re-invent the wheel.


was that a corrected 45 rwhp or uncorrected 45 rwhp? J/k

boostiality

Sorry had to resurrect this thread for others who are looking for n2o kit info that's laid out pretty openly which I'm probably going to copy for my cls. Kudo's to JohnnyBlaze who posted this info on the c63 section:

"My advice on this subject, which I'm very hands on with, is to get a good nitrous setup. Do not skimp on spending on this kit, do not cut corners, that's how bad things happen quickly. A good nitrous kit should cost you between $2k to $3k including tuning.

On the nitrous kits I've seen a 75hp shot increase 90 rear wheel horsepower on the dyno, and when the nitrous hit the car wanted to raise off the dyno.

mods on the car are

BenzWorks Long Tube Headers
BenzWorks catless mid-pipes
BenzWorks catless x-pipe
ROW Airboxes
aFe Pro-Dry filters
OETuning Custom Nitrous dyno tune.

Car put down 485rwhp without the nitrous.
With the 75 shot of nitrous it put down 555rwhp.

A nitrous setup I've run in a M156 consists of:

Nitrous Express 20923-10 35-75 HP Sport Compact EFI Single Nozzle System with 10 lbs. Bottle (you can change the nozzles accordingly)

Nitrous Express 11720 EFI Fuel Pressure Safety Switch (important for the SAFE system)

Nitrous Express 15600 Nitrous Purge Valve Including D-4 Manifold, Push Button and Vent Tube

Nitrous Express 15508 0-1500 psi Nitrous Pressure Gauge

Nitrous Express 15004 Boosted Stand Alone Fuel Enrichment (SAFE) System

If you also want to see an awesome nitrous kit, take a look at Dads C63 (search) setup. He was able to spray a 200 shot off the line, it cost him some clutchpacks for the transmission, but he did it. Personally, I wouldnt go over 150.

And no, the E55 supercharger will not work on the 63 motors. Only Weistec and Kleeman have proven superchargers."

CLKCLK

485whp with only long tub and tune? Man, I must be drunk.

99lightning

Im 496hp longtubes stock pulley and tune. That's just what they make

cij911

What are your goals / objectives ? I would think your car has plenty of power, good gearing, and aerodynamics for the Texas Mile.

The thing I would focus on is keeping the charge cool (without nitrous) - keep the KC / AC running under WOT and I think you'll be fine. I have not looked into how the MB controls the AC, but I would think this would be a great mod and if you're working with Shar & Jerry, they definitely could figure it out.

kponti

In the quarter mile I would expect the KC to be quite effective. However for a whole mile run in this summer heat... I don't really expect the KC to keep IAT's down much past the half mile mark (could be wrong). A small shot of nitrous (40-50hp worth) however will keep intake charge cool all the way through the mile and beyond

Hulk

With the KC it would depend on how big the water reservoir is

EREBUS

After talking to a few more people who run the mile races, it seems the main people running nitrous are the ones with N/A motors. Not that it makes a hill of beans, just adding spray to a boosted engine is, of course, risky......especially during the mile. I'm well aware that we must take risks while racing.......I don't know if spending $2000+ for a high risk 75 hp gain is worth it to me. (Nitrous is awesome for 1/4 mile, though)

I'm leaning on making the car a little more aerodynamic with cooler IATs as an option. Not that anyone gives a damn, but this stupid race has cost me more grief and money than one would imagine for the past 2 years. Trying to reach 185 mph in the mile with a factory blower has been my father's and I goal. My dad lost the battle with cancer early last year, so I now race with his ashes in my car.(no, not in the ashtray) Come hell or highwater, we will get it.

I really appreciate all of your feedback on nitrous, gentleman.

Grip Grip

With a modded SRT6 (little V6) I was spraying a 125 shot with no obvious ill effects on the engine. I'd think the 55 would handle a 125 equally as well. With the correct safeguards and equal amounts of research (education) and respect I don't believe a 75 shot would ever be a problem. I think it ran 144 MPH in Clayton last year with no bottle heater.

chawkins2001

I still think a small wet shot setup for cooling will get you to your goals and be safe. When I say small, I mean anywhere from a 20-50 shot. During the run just watch your air fuel, fuel pressure and your timing will be OK since you are on race gas. Will you be using c16 for the run?