Dry nitrous shot - NJFBOA - Home of New Jersey's Camaros and Firebirds

blueshark123 · 10-09-2009, 10:09 AM

Guys what efi system will allow me to run a dry nitrous shot. I know there is big stuff 3 but dont feel like forking over that much.

LTb1ow · 10-09-2009, 10:10 AM

You could run a dry shot on any MAF car..

Any more details on your engine setup?

blueshark123 · 10-09-2009, 10:15 AM

Quote:

Originally Posted by LTs1ow

You could run a dry shot on any MAF car..

Any more details on your engine setup?

What can I control the nitrous with though? I know a wet shot would be the easiest route but Ive never been comfortable with wet shots. It's a simple LS1 build. LS6 heads, mild cam, FAST intake/TB, long tube headers. Stock internals nothing crazy...yet.

LTb1ow · 10-09-2009, 10:20 AM

Control the nitrous as in like on/off at certain rpm and fuel pressure cut off?

http://www.nitrousoutlet.com/catalog...roduct_id=1131

http://www.nitrousoutlet.com/catalog...roduct_id=3481

http://www.nitrousoutlet.com/catalog...product_id=964

sweetbmxrider · 10-09-2009, 10:20 AM

what do you mean control?

blueshark123 · 10-09-2009, 01:03 PM

Control as in fuel and ignition. My previous car (Non-GM) had a standalone ecu that controlled activation, fuel and ignition retard. I know I can get a wet system that provides a module to control the fuel and ignition, however, I would rather run something that the main ecu/pcm controls the ignition and fuel and not a piggyback. Get what Im saying?

LTb1ow · 10-09-2009, 01:06 PM

No. Not at all... lol

How big of a shot do you plan on spraying?

~100 shot just needs the extra fuel demand and maybe a degree or so of timing pulled.

I plan on spraying a 100 wet shot on mine... no fancy timing pullers or similar... just a TPS activation switch and a tune that took that in mind...

blueshark123 · 10-09-2009, 01:41 PM

Quote:

Originally Posted by LTs1ow

No. Not at all... lol

How big of a shot do you plan on spraying?

~100 shot just needs the extra fuel demand and maybe a degree or so of timing pulled.

I plan on spraying a 100 wet shot on mine... no fancy timing pullers or similar... just a TPS activation switch and a tune that took that in mind...

LOL ok I guess I cannot explain myself in typed words. I plan on 100-125 shot. What are you using to control fuel and timing when the nitrous is engaged?

What I am asking if I can use something such as hptuners to control the addition of fuel and pulling of timing? Since it is a dry kit the pcm has to compensate with the addition of fuel via the injectors and not the extra fuel line that is used in a wet kit. In my previous car my ecu would allow me to add the amount of fuel and pull the amount of timing I wanted for when the nitrous was engaged. I know big stuff 3 can do all this but I dont feel like spending 2200 on a standalone at this point in time.

10-09-2009, 04:21 PM

your over complicating things, install dry shot, pull a couple degrees of timing, spray through MAF, PCM handles the fuel load

Edit: yes you can use HPTuners to do all of those things and more

sweetbmxrider · 10-09-2009, 07:27 PM

you spray in front of the maf and the computer will compensate for the lean condition via the front o2's

blueshark123 · 10-10-2009, 01:24 AM

Perfect thanks guys! Do you guys prefer wet or dry shots?

LTb1ow · 10-10-2009, 08:13 AM

Wet.

But from what I read, an LS1 PCM is much quicker and can more accurately handle a larger dry shot than an LT1 PCM.

blueshark123 · 10-10-2009, 08:53 AM

Alright cool I'll keep going a bit more research before I take the plunge. Thanks.

10-10-2009, 10:00 AM

i would go with wet, people say its dangerous because if the fuel solenoid goes your not getting any extra fuel for the spray but the fuel solenoid is far less likely to fail the the nitrous one (42 PSI as opposed to 1000 psi for Nitrous)

BarneyMobile · 10-10-2009, 12:52 PM

I ran both dry and a wet set ups. The Wet shot imo is better and easier to deal with and tune. With a dry shot, you're hoping the MAF picks up the nitrous. My car would always go lean on the dry shot. This was the reason I switch to a wet shot. I use the IAT resistor tricker mod to pull timing while the nitrous is on.

blueshark123 · 10-10-2009, 11:15 PM

Oh ok I guess Im so use to my previous car with MAP. It would essentially run two different tunes controlled via a switch to the ecu that activated the nitrous.