Nitrous and timing....

[JQmile]

I was thinking of running 27 deg and two 0.135 stages...only have 370cc of fuel so I figure I can't make too much cyl pressure LOL

Where are all you guys at?? Most people I've talked to are running c.20 deg with big spray.....

 

[VMAX]

I ran 27 degrees of timing, one drilled out pill ramped and a 56 jet. I only used this combo on occasion. Would usually just run drilled pill. Previous owner said the pump is at 400cc. On the dyno it held steady power with the above jets.

 

[SMOKIN93]

With stock pistons?

I ran 27 degrees of timing, one drilled out pill ramped and a 56 jet. I only used this combo on occasion. Would usually just run drilled pill. Previous owner said the pump is at 400cc. On the dyno it held steady power with the above jets.

 

[Stingpuller]

NOS

34* at 3800 rpm. A little more at 4200 rpm. Jeff

 

[VMAX]

With stock pistons?

Marine pistons.

 

[JQmile]

34* at 3800 rpm. A little more at 4200 rpm. Jeff

How much giggly gas?

Shoot, I'm all out of fuel by 3,000rpm, so my cylinder pressure is probably going to be pretty high.

 

[SMOKIN93]

How much did you spray on the starting line at Music City raceway? :lolly:

34* at 3800 rpm. A little more at 4200 rpm. Jeff

 

[JQmile]

How much did you spray on the starting line at Music City raceway? :lolly:

All of it, at 0psi LOL I'll see if I can dig up some footage of that.

 

[CL2000]

I say add more timingoke:

 

[Stingpuller]

Nitrous

That was just enough to make everyone run! lol That's what happens with a WOT switch and your not carefull. :doh: Jeff

 

[$and$hark]

.075 stage at 26* timing.

 

[DieselCharger]

dyno or track? I ran 32 degrees for two passes on a stock motor = 11.10 @128mph then melted two pistons 718 hp on dyno with juice and 540 ? on motor . If i dont have to fix your truck Jason go for 32 plus.

 

[SMOKIN93]

You do have the big bowl pistons, 27 and 2 .135's would still scare me though.

 

[JQmile]

Update...I ran on the dyno and made 447 on fuel, and then 335 on fuel with the nitrous setup (both wastegates open) went from 335 to 583 on one stage, and then 599 with the second stage...just no more fuel to burn, I guess. Triggered at about 2,000rpm, everything held up fine...made 1,284 lb-ft so the torque was pretty good

Made about 6 runs in the c.575-599 range. So it did live with 27 deg of timing, I just don't have enough fuel to blow it up :hehe:

 

[YOUNG GUNS15]

Update...I ran on the dyno and made 447 on fuel, and then 335 on fuel with the nitrous setup (both wastegates open) went from 335 to 583 on one stage, and then 599 with the second stage...just no more fuel to burn, I guess. Triggered at about 2,000rpm, everything held up fine...made 1,284 lb-ft so the torque was pretty good

Made about 6 runs in the c.575-599 range. So it did live with 27 deg of timing, I just don't have enough fuel to blow it up :hehe:

So when is that heap going to make some passes? You have some power now! :nos:

On edit: do you have video of those runs?

 

[DIESEL_POWER]

IMO the more RPM you run the more Timing you need

 

[Signature600]

IMO the more RPM you run the more Timing you need

Holy crap....no kidding??

Chris

 

[XLR8R]

:doh: I knew I forgot something...

 

[Signature600]

:doh: I knew I forgot something...

You should hire Wade....

Chris

 

[JQmile]

So when is that heap going to make some passes? You have some power now! :nos:

On edit: do you have video of those runs?

This video makes clear why you need to wastegate with nitrous :lolly:

http://www.youtube.com/watch?v=j78rKVqX-4c