Super ram and nitrous
Thread Starter
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
Super ram and nitrous
On the first run of the day I missed third gear and sprayed only to hear a very loud POP and looked in the rear view to see a huge puff of black smoke.
I ran it a 3 more times that day, but it seemed sluggish. Now it feels way crappy.
Now I got a code 34. MAF sensor too low reading.
Basically I blew out the wires in my MAF.
Has anyone else had MAF issues related to nitrous use and/or nitrous backfires?
I am having a new MAF on Monday or Tuesday to install.
[Excuse]
My mechanic had my B & M "T" handle shifter loose and tightened it way too tight so now it's no longer a "T" handle, it's half way to an "I" shifter, which will be fixed soon. The only other time I missed third was when I jammed it and actually loosened the T handle off (counter clockwise).
[/Excuse]
I ran it a 3 more times that day, but it seemed sluggish. Now it feels way crappy.
Now I got a code 34. MAF sensor too low reading.
Basically I blew out the wires in my MAF.
Has anyone else had MAF issues related to nitrous use and/or nitrous backfires?
I am having a new MAF on Monday or Tuesday to install.
[Excuse]
My mechanic had my B & M "T" handle shifter loose and tightened it way too tight so now it's no longer a "T" handle, it's half way to an "I" shifter, which will be fixed soon. The only other time I missed third was when I jammed it and actually loosened the T handle off (counter clockwise).
[/Excuse]
Melting Slicks
Joined: Mar 1999
Posts: 2,535
Likes: 2
From: Rochester NY
You do not want to miss a shift during nitrous in action. Your only way to prevent nitrous spray during shifting gear is to install a window switch and a micro switch. If your car is contiune having big smoke come out from the tail pipe on a normal driving. Then I guess you just have killed your motor. Just my .02
Bruce
Bruce
Thread Starter
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
I have a blow off tube that vents the nitrous outside underneath the car in case of too high bottle pressure blow out.
I don't have a window switch, I just use it over 3000 RPM and don't spray it over 6000 RPM (rev limiter set at that)
I understand that I should probably have a window switch and some other stuff too, but just never did get them.
I don't have a window switch, I just use it over 3000 RPM and don't spray it over 6000 RPM (rev limiter set at that)
I understand that I should probably have a window switch and some other stuff too, but just never did get them.
Burning Brakes
Joined: Feb 2000
Posts: 1,247
Likes: 2
From: Parker, Colorado, USofA
Originally Posted by black_89_vette
but just never did get them.
Most reciently when I burned up the racing tranny. See, I never got around to putting a temp gauge in there...or the extra cooler...or fixing that little little leak.
Safety Car
Joined: Apr 2001
Posts: 3,525
Likes: 2
From: Houston TX
Let me tell a little (not so funny story) of N20 from back in the very early 90s.
I much like others thought I did not need the window switch. I did have a WOT switch, but no min RPM switch. I went one better and set up a delay timer on the N2O to activate at 1.2 sec after WOT (or maybe ~3/4 throttle). Well, I did my burnout on slicks, not realizing that I had accidently went past the WOT switch and already activated the timer. So when the last amber lit, and I went WOT, ther was no delay, just instantaneous 145 HP out of the hole at 2800 RPM flash. I moved about 10 ft and had the most awful loud explosion. A large flash came from under the hood.
I had to push the car off of the track. I surveyed the damage. One MAF with loose sensor wires (i.e. fried). One accordian with a nice open section nearly the length of the duct. One SuperRam with the front ~12 bolts ripped out of the plenum, allowing the lid to lift and release psi.
Long story short, I upped the bolt size on all of the plenum lid bolts and replaced the damaged duct and MAF, and ....
BOUGHT A WINDOW SWITCH.
I still run the same electronics, though I have not used the N2O in over 4 years. I now have the SC on a MRII, but still use a window switch. Lesson well learned.
Aaron
I much like others thought I did not need the window switch. I did have a WOT switch, but no min RPM switch. I went one better and set up a delay timer on the N2O to activate at 1.2 sec after WOT (or maybe ~3/4 throttle). Well, I did my burnout on slicks, not realizing that I had accidently went past the WOT switch and already activated the timer. So when the last amber lit, and I went WOT, ther was no delay, just instantaneous 145 HP out of the hole at 2800 RPM flash. I moved about 10 ft and had the most awful loud explosion. A large flash came from under the hood.
I had to push the car off of the track. I surveyed the damage. One MAF with loose sensor wires (i.e. fried). One accordian with a nice open section nearly the length of the duct. One SuperRam with the front ~12 bolts ripped out of the plenum, allowing the lid to lift and release psi.
Long story short, I upped the bolt size on all of the plenum lid bolts and replaced the damaged duct and MAF, and ....
BOUGHT A WINDOW SWITCH.
I still run the same electronics, though I have not used the N2O in over 4 years. I now have the SC on a MRII, but still use a window switch. Lesson well learned.
Aaron
Safety Car
Joined: Apr 2004
Posts: 4,532
Likes: 7
From: Lahaina Hi
I have a purge on mine so the fuel does not puddle which causes the nitrous when the switch is on to add fuel and not nitrous, When the nitrous meets the fuel already their ,what a bang that will cause .
Read this mths hot rod mag they tried to put 450 shot on a junk yard motor. But that is like putting 1 gallon of fuel in an engine at idle.
If you are using the factory rev limiter your in trouble it restricts the fuel and thats not good with nitrous.
Read this mths hot rod mag they tried to put 450 shot on a junk yard motor. But that is like putting 1 gallon of fuel in an engine at idle.
If you are using the factory rev limiter your in trouble it restricts the fuel and thats not good with nitrous.
Thread Starter
Melting Slicks
Joined: Nov 2000
Posts: 2,469
Likes: 6
From: Winchester Ontario
I have an MSD 6AL with an MSD rev limiter box added to it that lets me limit the RPM from 4600 to 6600 whatever setting I choose.
I choose the 6000 setting.
I always thought that the purge was so that the nitrous will hit 100 % when you want it, gets the air out of the lines. I never thought about that with the wet system, it'll inject the fuel and if the line is not purged = no nitrous until there's too much fuel , and that's probably what happened.
Last time, at the end of my burnout I hit the button to "purge" it for the run.
Again, I never thought about the fuel solenoids pumping fuel, and the nitrous solenoids pumping air that's in the line until the nitrous hits.
Learn something new every day. Thanks forum!
I choose the 6000 setting.
I always thought that the purge was so that the nitrous will hit 100 % when you want it, gets the air out of the lines. I never thought about that with the wet system, it'll inject the fuel and if the line is not purged = no nitrous until there's too much fuel , and that's probably what happened.
Last time, at the end of my burnout I hit the button to "purge" it for the run.
Again, I never thought about the fuel solenoids pumping fuel, and the nitrous solenoids pumping air that's in the line until the nitrous hits.
Learn something new every day. Thanks forum!
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