NOS kit on a 3.2l OBD1..Good or Bad Idea? Opinons please!

jacob.325is · #1 (**permalink**) 09-04-2002, 11:43 AM

Okay I have a NOS dry fogger kit sitting in my room that I used on my M20 and it worked great, but now I have a M52b32 and have read the those posts on the Zex kit and it scares the shit out of me. I Know that the zex kit and NOS kit are not the same, but hey it is still nitrous? So is it safe, or how can I make it safe, or will I never be able to get enough fuel pressure for it to be safe? I don't want to have to buy a aftermarket fuel pump, fuel pressure regualtor, blah blah. So if it can't be done with out very minimal more $ for whatever I will sell the kit.

Thanks
Jacob

Bimmer RaVer · #2 (**permalink**) 09-04-2002, 12:29 PM

wow, where in madison do u live? and how old are u? damn...ive only seen 2 tuned bmw's around madison...I go to WEST for high skool if u even kno wut that is...

JCM3 · #3 (**permalink**) 09-05-2002, 02:16 AM

If you are using the dry system from NOS then you wont have any problems w/ the fuel pressure. I have been using that system for over 2 years w/ no problems. BMW pumps can handle around 90+ psi (I know) and the average 50-60 shot will only raise your fuel pressure to about 7-75 psi.

Geno325is · #4 (**permalink**) 09-05-2002, 05:54 AM

Hey, who did your swap?

jacob.325is · #5 (**permalink**) 09-05-2002, 08:02 AM

I did the swap myself, any questions just PM me.
JCM3, thanks, but why are the people with the zex kit having trouble getting the right amount of fuel pressure?

Geno325is · #6 (**permalink**) 09-05-2002, 08:09 AM

Hey Jacob, you ever take it to Great Lakes Drag? I gotta see it...

jacob.325is · #7 (**permalink**) 09-05-2002, 08:20 AM

I was there on Aug. 21st at the Import event, oh yeah and I won. $200 and a trophy, while two guys in Wrx's went home empty handed, hahahaha........................

Geno325is · #8 (**permalink**) 09-05-2002, 08:26 AM

What times were you getting?

jacob.325is · #9 (**permalink**) 09-05-2002, 08:53 AM

Read this thread.
14.082 @ 97.82 MPH AND $200 in my pocket!!!!

lose2abmw · #10 (**permalink**) 09-05-2002, 04:58 PM

Jcm3 is correct. You will have no problems using that kit on your car. There are no side affects at all. I use a chip and nos and it is ok. I have tested everything and its all good. The install is easy as you know. With the nitrus you will beat my best quarter mile time though, I am not very happy about that. Call ZEX and ask what jets you should use for a 50 shot on a 3L fuel injected car. It is all very simple and reliable. I have gone thorough 9 tanks so far. Just used it tonight to impress some friends. Peter

Geno325is · #11 (**permalink**) 09-06-2002, 07:34 AM

Wait, I heard that you should use the OEM chip since performance chips advance timing... whats the final verdict?

jacob.325is · #12 (**permalink**) 09-06-2002, 11:40 AM

Yeah it is possible, but you need a split second or something like it to controll the timing. So peter( or anyone else with both nitrous and a chip) why don't you explain how you run both consectutively?

GodSpd · #13 (**permalink**) 09-06-2002, 12:48 PM

I would go with the NX kit, I had it and ran a 75 shot with no problem at all. I have a Dinan chip and it seemed to cause no problem. I like the NX kit because it is a wet system, and you always know that you are getting enough fuel because wet systems spray fuel and nitrous together. I never thought about the advanced timing with the chip, but I know you don't have to retard your timing unless you run over a 75 shot, and then it is only like one or two degrees.

I have heard some bad thing about the Zex kits here are some links bellow:

Zex Nitrous Will *not* Work On Bmw's!!!

Zex Nitrous Problems Documented

Hope I was of some help.

lose2abmw · #14 (**permalink**) 09-06-2002, 04:17 PM

Well as far as the timing thing is concerned, it is simple. The chips are ok to use on BMW vechicles due to active knock control. I gnition timing is all relitive on BMWs. First off a good nitrus setup (ZEX, VENOM) will not allow the engine to run lean. They usually run a little rich to be safe. Advanced ignition timing can lead to pinging (chip) but if an engine ever pings, the DME automatically retards ignition timing extremely fast. The awsome BMW engine management allows for extensive modification. As you can see, while a nitrus only drag car may use retarded timing a street cat only uses N20 rarely so it would be impracticle. Advanced timing makes the car faster during normal operation and when using N20 the computer will retard it if need be. On my vechicle it does not retard ever. I have done all the fuel pressure tests, ect. N20 is safe if used correctly.

However, it can destroy an engine very quickly. "I know someone who" ran an 80 shot through the mass air meter without any provision for enrichment at all. The result was catastrophic engine failure, melted pistions, on a 98 M3. Dont be stupid and reaize the risks. A bad fuel injector will ruin an engine befor the Check Engine light even comes on. Peter

runetang · #15 (**permalink**) 09-08-2002, 08:09 AM

lose2abmw, so basicly you're saying someone can run a performance chip, and a 50-60 shot on n2o, and not run into any problems? people have been telling me if you want both, you need a special management system (waste of money), or a custom chip made for nitrous (a performance chip without the timing advanced). I need a definant answer as to whether you can run that sized shot with a performance chip or not.