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Wet or Dry Nitrous on 89GT??

  • Thread starter Thread starter Red89hatch
  • Start date Start date Mar 5, 2007
R

Red89hatch

New Member
Feb 28, 2007
2
0
0
Mar 5, 2007
#1
  • Mar 5, 2007
  • #1
I need some feed back on what to do?? Im running a stock 302 bottom end, and Gt40p heads, trick flow stage two cam, cobra upper, ported cobra lower, #24 injectors. I want some easy power and I dont have enough $ to go supercharged or turbo, so I want to go NOS! Im thinking my #24 injectors would keep up with a 100 shot of NOS, but I dont want to lean on it too much. Should I go wet system, or dry?? Thats the question.
 

85_built5.0

New Member
Feb 25, 2007
5
0
0
Beresford, South Dakota
Mar 5, 2007
#2
  • Mar 5, 2007
  • #2
Wet its safer to use on ur motor. DRY N.o.s just shoots the nos in there and it might lean out ur motor where wet shot also shoots more fuel into the engine that way u have a less chance of leaning it out.
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
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69
B.C. Canada
Mar 5, 2007
#3
  • Mar 5, 2007
  • #3
I would go with a wet system. That way you know you are injecting the proper mixture of both nitrous and gasoline. Wet systems are safer and can be added to if you want to up the shot of juice. Dry systems top out around 125hp whereas wet can continue to grow.
 

legalize420

Active Member
May 21, 2005
1,541
1
37
South Florida
Mar 5, 2007
#4
  • Mar 5, 2007
  • #4
85_built5.0 said:
Wet its safer to use on ur motor. DRY N.o.s just shoots the nos in there and it might lean out ur motor where wet shot also shoots more fuel into the engine that way u have a less chance of leaning it out.
Click to expand...



you can not just spray nitrous. the dry kits add the fuel at the injector. im pretty happy with my dry kit. im still on stock injectors. i ran on the 125 shot for the first time last week, 12.55 @113. my best time on the 80 shot was 12.65 @ 110. those times were also without the heater and it was in the 50's and 60's on those nights. i will be running the 150 shot this week with the heater. hoping to get into the 11's.
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Mar 5, 2007
#5
  • Mar 5, 2007
  • #5
legalize420 said:
you can not just spray nitrous. the dry kits add the fuel at the injector. im pretty happy with my dry kit. im still on stock injectors. i ran on the 125 shot for the first time last week, 12.55 @113. my best time on the 80 shot was 12.65 @ 110. those times were also without the heater and it was in the 50's and 60's on those nights. i will be running the 150 shot this week with the heater. hoping to get into the 11's.
Click to expand...

with stock injectors you are going to run 150 hp shot? I think you are just asking for trouble here. You may get away with it for a bit but i doubt the injector is going to be able to compensate for that much nitrous. You are probably going to be getting on the lean side.
 

legalize420

Active Member
May 21, 2005
1,541
1
37
South Florida
Mar 5, 2007
#6
  • Mar 5, 2007
  • #6
86bluecobra said:
with stock injectors you are going to run 150 hp shot? I think you are just asking for trouble here. You may get away with it for a bit but i doubt the injector is going to be able to compensate for that much nitrous. You are probably going to be getting on the lean side.
Click to expand...

NOS sells the 5115-II kit to use with the stock injectors. it is a 150 shot. comes with an external pump and a shim for the regulator. i have a 255 pump and the shim for the regulator. it ran fine on the 125 shot with 12* of timing. i dont see it being a problem going to the 150.
 
G

GREYFOX4INCH

Member
May 8, 2005
190
0
16
western MA
Mar 7, 2007
#7
  • Mar 7, 2007
  • #7
legalize420 said:
you can not just spray nitrous. the dry kits add the fuel at the injector. im pretty happy with my dry kit. im still on stock injectors. i ran on the 125 shot for the first time last week, 12.55 @113. my best time on the 80 shot was 12.65 @ 110. those times were also without the heater and it was in the 50's and 60's on those nights. i will be running the 150 shot this week with the heater. hoping to get into the 11's.
Click to expand...

dude you ran a 12.5 with a 1.8 60'
I ran 14.1 with a 1.8 60' theres your 11's right there.
i am running a 100hp dry shot on stock injectors but i wouldnt do more then that. im gonna get a wideband meter also so i can monitor my a/f all the time.
i have had injectors crap out before and its bound to happen again down the road. i dont feel safe trusting the injectors.
 

Auto Reverse

Member
Jul 22, 2003
265
8
19
Buffalo, NY
Mar 7, 2007
#8
  • Mar 7, 2007
  • #8
If you have at least 30 lbs./hr injectors and a half way decent tune...then dry all the way. It'll hit so much HARDER!
 
8

86bluecobra

Advanced Member
Dec 20, 2004
4,265
12
69
B.C. Canada
Mar 7, 2007
#9
  • Mar 7, 2007
  • #9
Auto Reverse said:
If you have at least 30 lbs./hr injectors and a half way decent tune...then dry all the way. It'll hit so much HARDER!
Click to expand...

Hey where is the time slip for the 11's? BTW do you launch on your juice? I was thinking you must not because you probably could get a lower 60' if you did as long as you have good traction.
 

Modular2v

Founding Member
Jun 30, 2002
3,222
23
99
oklahoma
Mar 7, 2007
#10
  • Mar 7, 2007
  • #10
wet is the only way to go. Is it a stick car?
 

Auto Reverse

Member
Jul 22, 2003
265
8
19
Buffalo, NY
Mar 7, 2007
#11
  • Mar 7, 2007
  • #11
No that timeslip was completely on motor with Nitto drag radials. I have ran high 11's on motor before but that was with 15" slicks and skinnies up front. I'm hoping for deep 11's with the spray. That timeslip on my CarDomain site was from Mustang On Mustang Racing League two years ago. It was heads up drag radial street racing.
 
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