100 Dry Shot on Stock pump/injectors/etc..

[AZ3.8Camaro]

Re: 100 Dry Shot on Stock pump/injectors/etc..

The FPSS would gaurd against other compenents failing, however dry kits strain the fuel pump and generally cause it to fail, so the kit is causing the components to fail.

Also, NOS includes 2 nitrous solenoids inline, so if one breaks, the other would still close and stop the spray of nitrous, so you don't blow up.

Using a nitrous kit without a FPSS is like racing a motorcycle without a helmet.

[Shodown]

Re: 100 Dry Shot on Stock pump/injectors/etc..

Using a nitrous kit without a FPSS is like racing a motorcycle without a helmet at night, drunk and with your eyes closed.

I really liked that comparison Ryan, but I added to it a little bit. :D

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

So what if your fuel pressure is fine but your injectors fail? You still blow up the motor. Hypothetically speaking; if it were common for the pump to fail first, you would still risk blowing the sh1t out of your motor if an injector problem surfaced on the spray.

The FPSS is $30 + install time and is cheap insurance, but it still relatively risky. What about clogged injectors, would that not be more common than fuel pump failure? The lean condition may not be as dramatic, but I'd assume it would still burn a hole in the piston after so many pounds of nitrous.

I'd think a company like NOS could do very with an in depth study that quantified the risk of wet/dry systems on a typical car. That way they could justify the extra cost and need for safety equipment that comes with their kits. Otherwise, a shroud of mystery still surrounds nitrous and companies like HSW will continue to pluck away at NOS's market share.

P.S. anyone ever notice how ls1tech and wizards of nos disagree on everything nitrous related?

[Shodown]

Re: 100 Dry Shot on Stock pump/injectors/etc..

Well if the FPSS in on the fuel rail with the injectors and reading the pressure inside the rail, if the rail doesnt have enough pressure (for whatever reason such as fuel pump failure), the FPSS shuts off the n20 solenoids. Basically, low/no fuel pressure to the injectors = no nitrous.

The fuel pump doesnt necessarily fail either, it just cant keep up.

Make sense now?

As for clogged/dirty injectors, thats a basic maintance issue and the nitrous wouldnt be to blame for a problem realated to that. Use some STP fuel additive and that will clean'em up.

BTW, Wizards of NOS = uneducated morons.

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

GM could have made it a little easier on us had the fuel pump for the Z28 been the same part as the fuel pump on the 3800 V6:twak:

I only have 47,000 miles on my motor, but I'm thinking of throwing in injector cleaner every few thousand miles as preventive maintenance.

BTW, Wizards of NOS = uneducated morons.

They're trying to sell a product in a market dominated by American companies, right? They create their own niche market by dishing out anti-American propaganda regarding knowledge of nitrous. If you are bored enough to read through their tech section, you may get a few laughs.

Who is this Johnny Nova Boy ?

Oh and regarding heat sensitivity of nylon hoses in the engine bay?

Because nylon pipe "looks" like it will melt, but will not. "Sensible" people route it so it's well away from heat (exhausts), this means the pipe is cooler (avoiding vaporization). If the pipe burst (which is NOT dangerous), it means the route is wrong and needs more thought, thus preventing a power loss due to heat build up in the pipe

There you have it... nevermind if your nylon tube breaks under the carpet, don't worry that you may have 2 full 10lb bottles in the trunk with no remote opener while you're driving down the highway, because all that auto-grade N2O venting is not dangerous. With that said, blow-down tubes should also no longer be required.

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

does anyone else see something wrong with how the spray is ran? i have my nozzle going into the side of the round neck of the whisper lid. it seems your would not be nearly as effective having to take a turn like that? anyone else agree with this? one of my friends had his hooked up like that on his trans am, after i talked him into moving, he said it it felt like a world of differance.

I did take your advice and relocated my nozzle to the bend in the neck. The nozzle (70 degree) now aims right down into the throttle body. At first, I had it aimed directly into the MAF sensor (shooting point blank at the IAT sensor), but the car would BOG REAAAALLY HARD as if I jumped on the brakes. Then I turned the nozzle down a little (away from the MAF and IAT sensors) so that it does hit the sensors, but the full hit is angled just below the MAF sensor.

It SEEMS like it hits harder now. What is sort of difficult to ignore, is how if I hit the nitrous at 40mph in my automatic, the wheels break free. The car still has traction and accelerates as it does this, but it is pretty dramatic and adds to the effect of pulling away :banana: .

It seems more high profile than if I did a burnout through an intersection.

[lilchubby]

Re: 100 Dry Shot on Stock pump/injectors/etc..

glad to hear that it helped. now just bump up to a hundred shot (with the proper saftey equipment of course;) ) and see how dramatic the effect is. honesltly feels like a totally diffrent car from the 75 shot.

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

glad to hear that it helped. now just bump up to a hundred shot (with the proper saftey equipment of course;) ) and see how dramatic the effect is. honesltly feels like a totally diffrent car from the 75 shot.

I fear :o

I know the part numbers are different, but what is the mechanical difference between the fuel pump in a z28 and our fuel pump? If the z28's can handle an additional 125-150... well you see where I am going with this. I need to know more FACTS about the fuel system limits.

[Shodown]

Re: 100 Dry Shot on Stock pump/injectors/etc..

I know the part numbers are different, but what is the mechanical difference between the fuel pump in a z28 and our fuel pump? If the z28's can handle an additional 125-150... well you see where I am going with this. I need to know more FACTS about the fuel system limits.

www.LS1tech.com
www.camaroz28.com
www.projectcamaro.com

You should be able to find on any of those sites.

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

ls1tech is great stuff.

i slipped the 52 jet (100 shot) in to see what it was like. it hits harder and the extra hp causes my little 235 right rear tire to spin more - which makes for a dramatic effect, but slows me down. that 100 dry shot engaged at higher speeds, with 3.42 gears is nuts. i think anything over 75hp to the wheels should be introduced progressively (like with a controller). its a real kick in the pants, but it feels like that extra bit of nitrous could break something either in the rear end or the motor. i kept having thoughts of teeth snapping or pistons chipping (thanks a lot showdown) so i put the 44 back in.
when i get a chance to install a/f and fuel pressure gauges (and then a nitrous pressure), i'll play around with 48 and 52 jets.

[Shodown]

Re: 100 Dry Shot on Stock pump/injectors/etc..

it hits harder and the extra hp causes my little 235 right rear tire to spin more - which makes for a dramatic effect, but slows me down.

You dont have LSD?? I though you mentioned having it.

i kept having thoughts of teeth snapping or pistons chipping (thanks a lot showdown) so i put the 44 back in.

Is that a good thing or a bad thing?

[BobDoLe]

Re: 100 Dry Shot on Stock pump/injectors/etc..

You dont have LSD?? I though you mentioned having it.

If I said I had LSD, I need to find and edit that post

Is that a good thing or a bad thing?

Worrying about costly repairs is better than actually having to get them done, but then I'm skeptical about the idea that a 75shot is that much safer than the 100shot in that sense.