venom ws7

iTrader: (13)

Hey guys!

We just finished the nitrous work and tuning
new numbers coming soon after the new cam/heads.

When the nitrous is activeted is that a normal sound from car??

A/F Ratio is somewhere between high 11 and low 12

http://www.youtube.com/watch?v=zdZJQa2vbow


BTW Lumina SS is the same car as G8 in the U.S

Let me know what you guys think?
Peace.
Sam.

SHovV

iTrader: (1)

nice numbers

coolmanvette75

iTrader: (2)

wow thats nasty! sweet numbers!

nz12's

iTrader: (4)

hehe someone is gettin a spankin!!! lolol

krissoto

iTrader: (3)

damn thats wicked. why is there a almost like a dead spot, when the kit hits? is that normal or what? def is a cool set up.

Cold Zero

iTrader: (1)

Great setup on that Lumina SS .. but that dead spot is almost a fuel problem !

What is the fuel system ?? I hope it is not only the always ( Walbro in tank ) .. a standalone fuel cell is a must with that 250 shot !..

JL ws-6

iTrader: (50)

I'd bet the dead spot right as the kit hits is a big lean spike or something like that, it's not good that I'm sure of.....

What's the a/f doing when that happens, what about the fuel pressure?

red fury

iTrader: (1)

I agree, that stutter is odd.

venom ws7

iTrader: (13)

Whats wrong with Walbro ??
car have Bosch 044 Pump Fast Rails , Fast 55lbs Injectors, Bigger fuel lines.





Fuel Pressure is 58psi A/F was 12.1 when it did that I'll double check tomorrow...

Does anyone know if with stand alone the problem will get fixed?

JL ws-6

iTrader: (50)

If it's a big lean spike yes it will, just have to make sure the solenoid to plate line length is short enough to prevent it. The main fuel system won't see an instant demand for fuel like it is now, so the motor won't see a lean spike before the nitrous hits like it sounds like it is now.

I'd like to see an a/f log of a nitrous run, but leave the nitrous off, unhook the line and put the same jet in a fitting in the end, let the fuel spray into a seperate container out of the car, so you can see what it's doing to the a/f without the nitrous actually doing anything, but the demand on the fuel system hits the same way. I bet you see a dead lean spot for a split second.

The standalone will do away with that.

One reason that happens, is because the regulator for the efi can't or doesn't keep up with the instant demand that you put on it, line length before the regulator is too long, pump can't keep up, or is keeping up with not a ton to spare, etc. Lots of causes for that.

Cold Zero

iTrader: (1)

Nothing wrong with the walbro in tank but it is not enough for that shot of nitrous

A standalone sounds the way to go, Man the car make crazy power N/A
Run C16 in tank so you can go up with timing "" More Power " .. Don't forget the BR8EF Plugs ..

Chris@NitroDaves

Very nice #'s... I like the way you did the vid as well. I already put it on our site in the video section.

That shutter very well may be a lean spike at system activation. It's hard to see the AFR on the Dyno graphs in the video. If it is a lean spike at the level you are spraying it would be better to go with a dedicated which will take care of all you fueling needs and take care of a lean spike.

venom ws7

iTrader: (13)

Thanks for the help JL-ws6 and Cold Zero.






Chris Gald you liked the video just saw it at the site.
I'll talk to you or Dave very soon about Dedicated fuel setup for the nitrous..

Ryan@RPM-Motorsports

iTrader: (1)

Whats the timing doing?

venom ws7

iTrader: (13)

I'm not sure but I think it was 22 timing on peak but I'l double check with the tuner..

Ryan how much timing do you usually run with setup like this on C16 Fuel ,
TR8 plugs and 11:1 compression??

Ryan@RPM-Motorsports

iTrader: (1)

There alot of different factors that need to be discussed. I normally run low timing and lean it out. Not knowing your A/F, its hard to say where I would run it.

The main reason I was asking about the timing, is Torque managment. When you go WOT is the timing dipping?

venom ws7

iTrader: (13)

Thanks Ryan .
I'll try to post the dyno graph A/F was around 12.1 and 12.4

I'll ask about the timing dip.