I seem to remember a product out there that would kill the nitrous system if your A/F got outside of a set range. I thought dynotune made it but I cant seem to find it on their website or any of my other bookmarked sites. Anyone got a link to it?

I tried searching but I'm not really sure what key words to put in to narrow it down enough.

 

you talking about a fuel pressure safety switch?

 

No its not a FPSS. It was a lil black box with 2 ***** on the face (2 if i remember correctly). One of them you set the lower end of the A/F number and the other one you set to the upper end. If your A/F gets outside of this window then the box will shut off your nitrous system. I remember them being out of stock when I bookmarked the vendors site but now I cant seem to find them period. Hopefully they're still being made.

 

I can't imagine using something like this on a street vehicle. The only way you could get accurate readings is with a wideband o2 sensor, seeing how the narrow band o2 sensor that comes with your car isn't even used at WOT. So that means you would be running a wide band o2 sensor 24/7... which is a no no....

 

Well i'm hoping to pick up a wide band here in a few weeks from that group purchase thats going on so I was thinking I'd hook it up to that. As far as running the Wideband 24/7 I guess I'll just have it hooked up to my nitrous system so its only on when the nitrous sys is active.

Anyone know who sells that A/F window though?

 

Dynotune used to sell it from what i remember, Im not sure if they still do i havent looked in a while.

And whats wrong with running a wideband sensor on the street. I do it everytime my car runs, and its been like that for the past 3 years. Some OEM cars run wideband sensors.

 

I was curious as to what the prob was on runnin the wideband 24/7 too but for my setup i'd only really need it when i'm sprayin. Anyone?

 

wait what? widebands arent used 24/7?

 

+1 I planned to leave mine on always! WTF?

I'm normally not one to go against newbies but I've bot to pull the 32 post bs flag on this one.

E-mailing dynotune and innovative immediately...

 

no that guys wrong from what ive heard.. dont worry
https://ls1tech.com/forums/showthrea...=674815&page=5

 

I had always thought they were always running as well. Let us know what they say.

 

here you are

 

Fast 93Z tried to use one on his car and it would not work in conjuction with the progressive controller. You may shoot him a pm for a practically brand new one at a discount.
Dave

 

We have used the DynoJet WBC to do that You can tie it in to do A/F, RPM and TPS all in one.

Biggest problem to over come is you have to make sure your N2O system is dialed in and not to much of a lean spike on the hit or it will just bounce in and out going on and off non stop.

BTW the system is designed to be ran NON stop when the car is running. the only problem you will have is if you do not feed the O2 power when the car is running. If you do it will ruin the sensor. IF you install the WBC correctly it is not an issue.

 

Ellis, i was planning on running a N.O.S. mini progressive controller and a "PLX" wideband (group purchase from this thread: https://ls1tech.com/forums/showthrea...t=674815&page=5).. will we be able to use these together without problems? or is there something else i need? im kinda confused right now..

 

The link is not working gor me.

I would have to see the controler but they should work together. They use different inputs(guessing) and the Wideband only tell the N2O to turn on or off on a ground circuit(I am guessing again).

PM me a the full link

 

Im pretty sure the dynojet widebandhas a function that you can use when you go lean. I have a dynojet wideband, just havent had time to set it and see it work. It also has a light that you can have come on for a set point you want on your A/F to warn you.

 

FJO Wideband can handle window switch capabilities with A/F on/off.

 

i have a brand new one here DT afr shut down switch.
paid 150.
will let it go for 120 shipped.

i went a diff direction so its unused.

the instructions show its capable of NB and WB use/signal

 

I was under the impression widebands were used just for tuning purposes only. Seeing how expensive just the sensor is, I figured most people tuned their tables on a dyno with a wideband, and then went back to a narrow band when they got off a dyno. The only exception I've heard of this are track only cars...

my bad.