×

Sale ends todayGet 30% off any course (excluding packages)

Ends in --- --- ---

400 shot of N20

Understanding AFR

Forum Posts

Courses

Blog

Tech Articles

Discussion and questions related to the course Understanding AFR

= Resolved threads

Author
793 Views

I have my closed loop target to 11.0 to 1 AFR on a 400 shot of N20, do you think that's good? or what do you recommend?

LSX 422 12:1 compression Holley Dominator efi VP C23 120lb holley injectors 43psi fuel pressure.

I'd say 11.0:1 is probably slightly richer than necessary but certainly in the ball park and a safe place to begin optimising the nitrous tuning. Make sure you remove timing as well, particularly with a relatively high static compression ratio. The usual rule is 2 degrees per 50 hp so for a 400 shot I'd start by retarding 16 degrees from your timing map. This is usually overly safe but it's always good practice to begin with a conservative tune and then optimise it from there.

We usually reply within 12hrs (often sooner)

Need Help?

Need help choosing a course?

Experiencing website difficulties?

Or need to contact us for any other reason?