Need A Link To A Nitrous Install On A CIS-E Benz Thread Please - Page 2 - PeachParts Mercedes-Benz Forum

mytmousemalibu · #16 04-03-2015, 04:56 PM

If you run some type of cold-air induction tube, not the stock air-box, you can plumb the fogger nozzle upstream of the CIS inlet say 6" or so. I wouldn't worry about fuel puddling really, your going to be using this under WOT and there will be more than enough air volume being pulled in to keep any quantifiable fuel from dropping out of the induction charge. Plus the Nitrous/Fuel should be better homogenized and evenly distributed across all cylinders. You could still try to plumb after the CIS and jet it overly rich and watch your wideband like a hawk to keep out of lean territory. Some widebands have a setable alarm which would be nice. I wouldn't worry about the extra fuel pressure on the solenoid, not going to hurt it and added pressure will be better than too little. If it really bothers you, you can buy an adjustable EFI fuel pressure regulator from Jegs or Summit but thats going to eat some of your budget.

400Eric · #17 04-04-2015, 04:46 AM

This is the video I was referring to that says to put the fogger before the throttle body. https://www.youtube.com/watch?v=AyMEXSHes8Y (Please note that this video was not produced by just any yahoo, it was produced by Holley, the parent corp. of NOS.) I think Whipple was thinking that putting it after the TB was better because we want to avoid having the fogger close to the air meter plate. As I stated earlier, I agree that it is important to keep the fogger away from that plate. HOWEVER, this video says to put it 6 inches ahead of the TB, which I think gives the N2O and added fuel plenty of time to vaporize and mix well with the rest of the air that is present there, hopefully well enough that the fuel won't separate when the air and fuel are slammed into that knappy meter plate. I'm thinking to maybe even stretch that 6 inches out to 8 inches!

So yes, doing it this way now requires us to ditch the stock air cleaner assembly, run a remote air cleaner assembly instead and run some tubes which as luck would have it now give us plenty of places to put the fogger and I don't have to run tests on a M103 intake manifold now either.

There's really not enough room on the intake side of the engine bay for an air cleaner assembly though, especially when you consider how I want to put as much distance as possible between the fogger and the air meter plate. But I just hate putting the air cleaner on the hotter exhaust side of the bay, running the intake tube over the hot exhaust manifolds like the HFM M104s do. That's bunk! More design work is needed here.

Running a little more fuel pressure than what was designed for on the N2O system will very likely mean the kit will run a little richer than expected. Probably not a bad thing, more like a erroring on the side of caution kind of thing.

I'll also need to find Jay Rash's schematic for his cockpit adjustable EZL trimer switch. What thread is that in Jay Rash?

mytmousemalibu · #18 04-04-2015, 05:51 AM

I highly doubt that mix of gas & nitrous will separate under WOT conditions. Turbulence and boundry layer will keep it in suspension and flowing to the cylinders. I wouldn't go placing that nozzle upstream too far, 6" is probably pretty good. Remember you are filling the induction system full of fuel and oxidizer, it will make quite a bang if it ignites so the less = better. That can happen if you accidentally go lean for any reason. And as far as mixing goes, look at a carb plate kit, it sprays fuel and nitrous from 2 individual bars and mixes well enough in the 6-10in it travels through short intake runners to the cylinders. Your fogger nozzle mixes way better right out of the nozzle tip and has far longer to travel. Many, many an efi car has had a nozzle stuck in an air intake tube and worked great

As for your intake routeing, I looked at this when I was still driving my 300TE. I thought about running it across the front of the engine to the other side and making a heat shield for the filter area from thin gauge sheet aluminum. Easy to bend & rivet and you can get cheap door seal moulding type stuff to put around the edges. And you can get heat reflective wrapping for the tube. Second thought was apply the same materials and techniques but make a cowl induction air box to draw cool air from the base of the windshield. Little more creativity for that and probably a flat element filter. My old 79' Malibu drag car dropped .20sec off my ET in the 1/4 mile when I put a cowl hood on the car and made it actually function. I made a sealed carburetor air-tray so it only sucked air in from the cowl. Cool air is free horsepower

400Eric · #19 04-06-2015, 01:37 AM

It's just nuts. The yahoos on Craig's List want $400 for used kits when I can buy a new kit for $420! http://losangeles.craigslist.org/lgb/pts/4924056046.html Anybody know anything about the brand called "Nitrous Supply"? Any good? Reliable? Or garbage? At least better than a used kit? What say you guys?

mytmousemalibu · #20 04-06-2015, 02:19 AM

I think i've seen that brand name on a couple drag car videos but thats all I know. My dad has been building a 63' Nova wagon with a 355ci small block, it will be pretty healthy. Just put an NOS/Sniper plate kit on it but yet to even start it yet but looks pretty good for a budget kit. I think we got it from Jegs.com

400Eric · #21 04-11-2015, 11:34 AM

Does ANYBODY know ANYTHING about this brand "Nitrous Supply"?

400Eric · #22 04-15-2015, 07:39 PM

OK, I did an internet search on this outfit and here's the lowdown on NS: It's a company based out here in So Cal that was started about 10 years ago by a guy named Mike Thermos. Anybody know who that is? He's the guy who was one of the original innovators of nitrous use on cars and is in fact the very indiviual who founded NOS! (He later sold that company to Holley.) I called their tech line today and a very knowledgeable fellow answered the phone right away (always a good sign) with no waiting, no prompts, no automated system to deal with. Nice! I'm thinking that we have a plan here unless somebody talks me out of this.

oldsinner111 · #23 04-20-2015, 09:10 AM

I like the sniper,because you can purchase,a valve that shuts nitrous down,if fuel pump fails.They have one for carbs,and one for fuel injection,it can be adjusted higher.Its worth the money.I sold my whole Kit for a $100.I'm looking for a amg supercharged model.

400Eric · #24 04-20-2015, 07:38 PM

I wish I had known when your kit became available. Did you sell it in this site's classified section?

oldsinner111 · #25 04-21-2015, 01:53 PM

no,I craig listed it.

400Eric · #26 04-22-2015, 01:20 AM

Craig's listers out here want $400 for their crap. That's why that kit that is on sale for $420 is looking so good to me.

nulu · #27 04-22-2015, 10:36 PM

Ive installed a nitrous system on a CIS Bmw system euro bmw 323, ran it for 4 years or so, ran an 80 shot with a built motor total of around 300 hp on a car that weighs2,400 lbs, I personally talked to mike thermos, he told me a story of when he got started with nitrous he was driving a chevy van and kept adding more and more nitrous until he could pull wheelies going down the street, bingo nos was born, anyways I wouldn't recommend it on a used daily driver, u need to retard timing when under nos, use 1 0r 2 step colder plugs, better to run higher octane fuel, I used a wet system , with an additional fuel pump activated only at wide open throttle, arming switch etc, shoot me some questions , ps The first time you use it your going to be laughing, only drawback need to refill the bottle I had a 10 pound bottle I would use 2 tens.

oldsinner111 · #28 04-24-2015, 08:32 AM

I never retarded on my hfm,or ran colder plugs.I just stayed on the rich side,to cool things off.I only used mine really at the track,once in a while other cars.

400Eric · #29 04-29-2015, 05:58 AM

Quote:

Originally Posted by nulu

Ive installed a nitrous system on a CIS Bmw system euro bmw 323, ran it for 4 years or so, ran an 80 shot with a built motor total of around 300 hp on a car that weighs2,400 lbs, I personally talked to mike thermos, he told me a story of when he got started with nitrous he was driving a chevy van and kept adding more and more nitrous until he could pull wheelies going down the street, bingo nos was born, anyways I wouldn't recommend it on a used daily driver, u need to retard timing when under nos, use 1 0r 2 step colder plugs, better to run higher octane fuel, I used a wet system , with an additional fuel pump activated only at wide open throttle, arming switch etc, shoot me some questions , ps The first time you use it your going to be laughing, only drawback need to refill the bottle I had a 10 pound bottle I would use 2 tens.

Thanks for responding.

Yes, I do have some questions. Let's just talk here if that's OK instead of through PM so that all can share in the knowledge.

First of all, do you agree that placing the fogger 6 to 8 inches before the air meter will be OK? If not where should I put it? Where did you put your fogger?

Also, even though I already have a plan for timing retard under boost, I'd still like to know how you did it.

Thanks.

oldsinner111 · #30 04-29-2015, 06:44 AM

since my car has long intake,my fogger was 3 inches above throttle body.It would turn white with frost,no problems.I did that because of the shape of my intake pipe there was no tool that could get past the bend to secure nut that holds the fogger.Be sure and loctite it.I was going to purchase another intake,and run 6 nozzles,a couple of inches before the head,to insure a colder charge,and turn it up to 150 shot.I don't believe water alcohol would not freeze,I considered it to.As long as you have a cold charge,timing is not a problem.There was a guy with a 4 cylinder c class with a 125 shot.
Be sure and insure you have a good fuel pump,and relay is new.If you go to NOS site you will see how the v8 manifolds are now being set up.