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2013 FBO ZL1 vs 200shot 5th Gen = Nitrous backfire

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Old 12-04-2016, 09:44 PM
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Default 2013 FBO ZL1 vs 200shot 5th Gen = Nitrous backfire

Old 12-05-2016, 05:51 AM
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Well he didn't get far. Drone angle was a cool idea though.
Old 12-05-2016, 08:08 AM
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Good vid.

What messed up for the nawz to back fire?
Old 12-05-2016, 12:10 PM
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Originally Posted by islander033
Good vid.

What messed up for the nawz to back fire?
he sprayed to low of a rpm
Old 12-05-2016, 12:25 PM
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Originally Posted by abenitez
he sprayed to low of a rpm
Weird, as long as he was at WOT when it hit I have troubles seeing this happen unless something else went wrong.

Peeps spray out of the hole all the time...
Old 12-05-2016, 01:31 PM
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Originally Posted by islander033
Weird, as long as he was at WOT when it hit I have troubles seeing this happen unless something else went wrong.

Peeps spray out of the hole all the time...
That's like saying "people run big turbo's all the time" or "people run cams that big on the street all the time". Improper setup can kill anything: and with nitrous, there is SO MUCH that goes into the proper setup for any given ride that it's easy as pie to find yourself with an improper setup for what you want to do.

In this case, a 200 shot is a lot of nitrous/fuel to be spraying. Assuming you have the nozzles spraying at the perfect angle for uniform distribution (and that is a moving target) you still need high airflow to suck all that down without it pooling in the intake, and that is what happened here I bet. Ends up with so much liquid fuel in the combustion chamber that instead of a millisecond long explosion you get fractions of a second long burns - which means the light is still on when that intake valve opens. Kaboom results.

I've seen air cleaners look like that before, too: there was so much fuel in the intake that the explosion blew some of it out of the filter before it could find the oxygen it needed to join the fun, then after the initial explosion was done it went off, caving in the filter.
Old 12-05-2016, 01:40 PM
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Originally Posted by Sticks n Stones
... there is SO MUCH that goes into the proper setup for any given ride that it's easy as pie to find yourself with an improper setup for what you want to do. ...
So...the setup was prolly improper.

Weird it did that then huh?
Old 12-05-2016, 02:14 PM
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Originally Posted by islander033
So...the setup was prolly improper.

Weird it did that then huh?
Or combined with driver error: spinning 1st and instead of riding out 1st gear the driver short shifted to 2nd (or trans was left in auto which means it would short shift by itself). That much lower rpm and therefore airflow thru intake combined with that big 200 shot results in same effective result.

Ported nitrous setups are preferred for a reason. Yeah sure they are more complicated and cost double a plate setup, but they eliminate some engineering failure points which reduces the impressive amount of blown engines and popped intakes' stories that are floating around out there.
Old 12-05-2016, 02:31 PM
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Originally Posted by Sticks n Stones
Or combined with driver error: spinning 1st and instead of riding out 1st gear the driver short shifted to 2nd (or trans was left in auto which means it would short shift by itself). That much lower rpm and therefore airflow thru intake combined with that big 200 shot results in same effective result.

Ported nitrous setups are preferred for a reason. Yeah sure they are more complicated and cost double a plate setup, but they eliminate some engineering failure points which reduces the impressive amount of blown engines and popped intakes' stories that are floating around out there.
So once again, improper. Not the right safeties in place or setup correctly.

I think we agree, you just like to be long winded. lol
Old 12-05-2016, 04:18 PM
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yep, I can sugarcoat bullshit with the best of them.
Old 12-05-2016, 05:49 PM
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Originally Posted by Sticks n Stones
yep, I can sugarcoat bullshit with the best of them.
and
Old 12-05-2016, 07:20 PM
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ugh tired of seeing the street outlaws version light just waiting for some dumbass to fall or get hit its only a matter of time
Old 12-06-2016, 11:44 AM
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A nitrous backfire is what concerns me if I were to go nitrous. I would not even consider nitrous without a window switch though.
Good fat tune and a window switch would be the safe bet.
Old 12-06-2016, 12:11 PM
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Originally Posted by MACHXLR8
A nitrous backfire is what concerns me if I were to go nitrous. I would not even consider nitrous without a window switch though.
Good fat tune and a window switch would be the safe bet.
If your safety setup and toon is good, nawz is pretty safe.
Old 12-06-2016, 09:46 PM
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Originally Posted by Omega Doom
ugh tired of seeing the street outlaws version light just waiting for some dumbass to fall or get hit its only a matter of time
lol there is a video out there somewhere of a guy flashlighting a race where he immediately steps to the left...
Old 12-07-2016, 11:17 AM
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I have seen wet kits backfire out of the hole before when spraying it under like 2500 rpms. Something about fuel pooling and not being burnt off.
Old 12-07-2016, 11:37 AM
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Originally Posted by necrocannibal
I have seen wet kits backfire out of the hole before when spraying it under like 2500 rpms. Something about fuel pooling and not being burnt off.
Poor setup and safeties in place.
Old 12-08-2016, 10:52 PM
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You need the RPM up to ingest the nitrous. You spray nitrous in the intake, the cylinder has to suck it in. Too much sprayed at too low an RPM and this is what you get as it is just a fog of spray and fuel in the intake that is going nowhere. That's the readers digest version, but I think you guys can understand what I'm saying. I've made my fair share of mistakes with the bottle when I was younger and playing with 5.0's.
Old 12-08-2016, 10:55 PM
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Originally Posted by islander033
Poor setup and safeties in place.
It's the tune up and the user that makes nitrous safe. The "proper" safeties usually are what messes up when your money is locked in.
Old 12-09-2016, 07:49 AM
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Proper safeties:
window switch/progressive controller
WOT switch
Arm switch
Toon
Fuel

All of those need to be setup and proper to make nawz safe. The street guys I see having these issues are running a ghetto system and missing some of these items and make a mistake.


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