[rollingdodge101]

I have a 09 challenger rt auto. I have a nitrous express wet single fogger kit. Im running a WOT switch along with a rpm window switch set for 3500 on and 5700 off. Im looking to run a 125 shot of nitrous. Im going to run colder plugs also. I have a diablo predator tuner and am running a 93 cai tune. I was wondering if i need to get a custom tune or can i just pull 4-5 degrees of timing in the diablo? Also with an automatic can you spray while shifting or should i spot in between each shift? Any info would be great thank you.

 

[Toddsmith]

I got a custom tune, you might find that 3500 rpm is a little on the high side. I had mine set to 3000 for on and 5750 for off. There is no need to worry about off and on between shift.

I would suggest Johan for a tune he did great for me. Also you may want a wideband to monitor your A/F to really dial it in.

Good luck

 

[SRT8U]

Get a custom tune and get yourself some mid 11's

 

[rollingdodge101]

I talked to johan just the other day about a tune. i was just curious. Toddsmith, do you spray in first too or start in second? Ok awesome thanks guy.

 

[Toddsmith]

I sprayed in first. I wouldn't really load the tranny above 1100 rpm and then ease into it, that way once the car starts rolling the nitrous kicks in.

 

[rollingdodge101]

Ok cool ten maybe i will try spraying in first. What else do you have done to your chally?

 

[Toddsmith]

A fair bit. I was running a 150 shot with my mods and got in the 11's. I have JBA shorty headers, catback exhaust BBK 90MM throttle body, catch can, custom tune to name a few.

 

[rollingdodge101]

Nice i have almost the same ill have a 85mm fastman tb, i have jba shorty headers with pypes catback, 180 tstat, catch can and of coarse CAI. How often do you spray your nitrous? And is it on your daily driver. I thought 125 shot was the max on stock internals?

 

[SRT8U]

Here is some info from when we tested the first Zex system on the 5.7 back in 09
May be of help
http://www.challengertalk.com/forums/f53/11-696-speedlogix-challenger-r-t-11363/?highlight=speedlogix+125+challenger
http://www.challengertalk.com/forums/f53/drag-radials-540-rwtq-11-971-speedlogix-challenger-r-t-10236/?highlight=speedlogix+125+challenger
http://www.challengertalk.com/forums/f53/zex-125-shot-nitrous-gains-145-rwtq-88-rwhp-speedlogix-challenger-r-t-9876/?highlight=speedlogix+125+challenger

 

[Toddsmith]

Here is my post on my install. I ran the Zex kit for a season going to the track a total of 13 times and I would get in between 5 and 8 passes depending on the night.

My car is a daily driver sun, rain and yes snow. I find the front spoiler with my car lowered acts as a great snow plow

http://www.challengertalk.com/forums/f178/zex-install-2010-5-7-auto-60492/index2.html