Testing/Bypassing FPSS
#21
11 Second Club
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Sponsors....any comments?
XTrooper, let us know about the A/F ratio nitrous shutoff switch. I didn't know about this device, sounds like a better version of an FPSS for sure.
Can I, and where can I get one?
XTrooper, let us know about the A/F ratio nitrous shutoff switch. I didn't know about this device, sounds like a better version of an FPSS for sure.
Can I, and where can I get one?
#22
11 Second Club
Thread Starter
Join Date: Nov 2001
Location: NE PA
Posts: 1,320
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
[QUOTE=antz01ta] Yeah, I remember you telling me that, Glenn. It looks like I'll be doing the same till something better comes along.
Originally Posted by XTrooper
Well, I bypassed it and now I'm spraying again, so it must be the damn FPSS.
QUOTE]
i took mine off too steve, havent run one for 2 years now.
QUOTE]
i took mine off too steve, havent run one for 2 years now.
![Driving](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_driving3.gif)
#23
11 Second Club
Thread Starter
Join Date: Nov 2001
Location: NE PA
Posts: 1,320
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by 1ScrudeDude
Sponsors....any comments?
XTrooper, let us know about the A/F ratio nitrous shutoff switch. I didn't know about this device, sounds like a better version of an FPSS for sure.
Can I, and where can I get one?
XTrooper, let us know about the A/F ratio nitrous shutoff switch. I didn't know about this device, sounds like a better version of an FPSS for sure.
Can I, and where can I get one?
![Icon Cool](https://ls1tech.com/forums/images/smilies2/icon_cool.gif)
#24
11 Second Club
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by XTrooper
Well, most if not all of the progressive controllers available have this capability built-in, but for me to buy one of them I'd be paying for a lot of features I don't need and they aren't cheap. I'm hoping DynoTune releases their upcoming stand-alone A/F shutoff switch soon as it should be less of an investment and easier to install. ![Icon Cool](https://ls1tech.com/forums/images/smilies2/icon_cool.gif)
![Icon Cool](https://ls1tech.com/forums/images/smilies2/icon_cool.gif)
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
Not a big nitrous car for sure. But I would like something to protect my current investments.
#25
11 Second Club
Thread Starter
Join Date: Nov 2001
Location: NE PA
Posts: 1,320
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by 1ScrudeDude
But I would like something to protect my current investments.
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
https://ls1tech.com/forums/nitrous-oxide/387150-question-dynotune.html
#26
11 Second Club
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by XTrooper
I hear ya! Did you see this, amigo? A buck and a half isn't bad at all and it's ~50% less than the least expensive controller. If you don't really need a controller, this might be the way to go. ![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
https://ls1tech.com/forums/showthread.php?t=387150
![Cheers!!](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_cheers.gif)
https://ls1tech.com/forums/showthread.php?t=387150
![Thumb](https://ls1tech.com/forums/images/smilies2/thumb.gif)
#27
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'm no expert here, but I have come to believe that a narrow band is not accurate enough to be reliable to shut the system down based on AFR.
You might want to check this out thouroughly before investing in one.
I am as stingy as anyone but if I trash my motor, spending between $400.00 & $500.00 for a wideband would have been pretty darn cheap. I look at it like buying insurance. If you buy it you may never need it but if you don't and something happens you will be kicking yourself all the way to the bank!!![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
Hopefully we will be seeing a wideband setup for this without extra features for less $$$$.
I would think they will sell.
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
You might want to check this out thouroughly before investing in one.
I am as stingy as anyone but if I trash my motor, spending between $400.00 & $500.00 for a wideband would have been pretty darn cheap. I look at it like buying insurance. If you buy it you may never need it but if you don't and something happens you will be kicking yourself all the way to the bank!!
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
Hopefully we will be seeing a wideband setup for this without extra features for less $$$$.
![Happy](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_stretch.gif)
#28
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
I'm no expert on the subject, but I've been told by Dynotune and others that narrowbands are actually pretty accurate as long as they're on the lean side of stoich.
As far as spending $400-500 on a wideband, Dynotune has preprogrammed LC-1s for under $200, and a LC-1 gauge combo for $250 right now.
EDIT: sorry I meant wideband
As far as spending $400-500 on a wideband, Dynotune has preprogrammed LC-1s for under $200, and a LC-1 gauge combo for $250 right now.
EDIT: sorry I meant wideband
Last edited by Zeus; 09-30-2005 at 01:30 AM.
#29
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by Zeus
I'm no expert on the subject, but I've been told by Dynotune and others that narrowbands are actually pretty accurate as long as they're on the lean side of stoich.
As far as spending $400-500 on a narrowband, Dynotune has preprogrammed LC-1s for under $200, and a LC-1 gauge combo for $250 right now.
As far as spending $400-500 on a narrowband, Dynotune has preprogrammed LC-1s for under $200, and a LC-1 gauge combo for $250 right now.
As far as I know this should catch everything except a nitrous solenoid that sticks open. If it goes lean due to fuel pump failure or for any number of reasons ( bad relay, blown fuse, bad connection etc.) the fuel solenoid does not open or only opens part way you will probably trash the motor.
The one thing that really concerns me is our state (Kansas) in their infinate wisdom
![Icon Rolleyes](https://ls1tech.com/forums/images/smilies2/icon_rolleyes.gif)
![Bang Head](https://ls1tech.com/forums/images/smilies/LS1Tech/gr_banghead.gif)
Beware out there our government is taking care of us, but have no clue or don't care or both how their decisions effect us citizens. Of course if we had a lobby like the grain producers have maybe the pumps will still be labled.
#30
11 Second Club
Thread Starter
Join Date: Nov 2001
Location: NE PA
Posts: 1,320
Likes: 0
Received 0 Likes
on
0 Posts
![Default](https://ls1tech.com/forums/images/icons/icon1.gif)
Originally Posted by terry s
I'm no expert here, but I have come to believe that a narrow band is not accurate enough to be reliable to shut the system down based on AFR.
![Icon Confused](https://ls1tech.com/forums/images/smilies2/icon_confused.gif)
Actually, the narrowband readings have proven to be sufficiently accurate at WOT which is all we're really concerned with when spraying.
![Icon Cool](https://ls1tech.com/forums/images/smilies2/icon_cool.gif)