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View Full Version : What a/f to start tuning my dry shot?



Slowrc
March 12th, 2010, 03:34 AM
Installing a dry shot this weekend on my Z. Looking for input on what my a/f ratio should be before I hit the button on the 100 shot. No maf, just tuning with serial lm1.
THANKS...

odd boy
March 12th, 2010, 09:20 AM
I guess the shot is small;

To be in the safe side with the shot, AFR shall be 11.7 ....... and take 2 deg every 50 hp

Before the shot the AFR can be whatever u like between 12.5 to 12.8

For your setup (dry), it would be better if you use COS. COS will have your car at optimum condition with and without NOS.

Or tune it for the two conditions, and swap between them as required.

Good luck...OB

Slowrc
March 12th, 2010, 09:36 AM
Yeah, I was looking for what to tune the A/F to prior to the shot before hitting the button. IE : i tune mine to 10.5 and hit the button and a 100 shot takes it to 11.7. I'll lower the timing and get logged and try some stuff. I was looking for an idea to start with though...

Thanks for replying:)

odd boy
April 14th, 2010, 11:12 PM
So do u got the idea through what I said...

Slowrc
April 14th, 2010, 11:48 PM
http://www.ls1tech.com/forums/nitrous-oxide/1252058-air-fuel-100-hp-dry-shot.html

Link to the story of how it turned out...