Just wondering how many people have sprayed a 175 (crank) shot on there stock fuel pump and stock injectors? I know magic chicken has just trying to get some input. I plan on doing this, this year. If you have done this what was your injector duty cycle ? I have no tune so I was just wondering if I would be ok as well. Plan on running 62/35 jets.

 

Wet shot or dry. With a wet I would think you would be fine as long as you used the appropriate fuel jet. There is no way you would keep that motor together with a 175 dry with stock injectors and fuel pump. Unless that is your plan.

 

Its a wet shot from nitrous express.

 

A 175 is still pretty huge on a stock bottom end. Fueling should be handled by the fuel jet since the MAF isnt going to comepsate for the nitrous anyway since it is being sprayed after the MAF. I would think a 175 would put something under pretty quick. A huge hit like that is going to toast your tranny or bottom end sooner as opposed to later.

 

Yea whats what I am wondering. I have a new racing transmission that I just put in. I will be using the 62/35 jets. I have sprayed a 125 shot many many times with no issues. I plan on logging it to see what my injectors are doing.
My theory is, isnt there guys on here running a 150 shot from NX that is rated at the tires on stock fuel pump and injectors ?
If that is the case then a 175 (crank) shot would be equilivant to a 125 rwhp shot. Correct ?

 

Man I totally missed the whole crank part every time . I thought most jets were rated at the rear wheels. Im definately not a nitrous expert, but I would think that a 175 fwhp jet would be about 140-150 so that is still quite a bit but many have done it. As long as you log it and there is no detonation and there is a good A/F ratio you should be good. If you dont have a wideband, I would definately get it on a dyno to check out the A/F.
Keep us updated.

 

62/35 is a 150 shot and it's rated at the wheels. The stock injectors will be fine but your days are numbered w/ a stock fuel pump.

 

How big of a shot are you running ?

You think 2 bottles sprayed through it will be ok with some octane booster?

I plan on spraying a bottle to do some logs and a bottle at the track.

 

I have done a 170rwhp shot about 30-40 times, i have also sprayed 220 about 10-12 times. only problem was melting the plugs on the 220

 

I was thinking it was 150 also. You should be fine. I sprayed 62/35 for three years with no problems. When I went above 175 I started hearing stuff literally coming apart in the bottom end.
Hold on tight when you hit it, it's a heck of a jolt, better have tires too or you'll just go up in smoke!

What could your truck run the 1/4 with the 125 shot?