Time to head to a dyno. What afr should i shoot for? I plan on getting the air fuel ratio aroung 12.5 to 1 on the motor. Then I'm going to spray the first stage 100 shot. What AFR should I shot for? Then I will spray the second stage another 100 shot. At this time I would like it a little richer so what should it be 10 to 1 ,11 to 1, 12 to 1?

I plan on getting it dynoed Thursday or Friday. Then I will have some new times on Friday.

 

low 11s to start. Then read your plugs assuming you have the right heat range for your setup. Don't forget your fueling and possible timing retard if needed

 

I have tr6's now but will probally will go one more step colder. I have the mallery 685 and plan on leaving the timing at 35* on the first stage and then pulling 8-10* when the second stage comes in.


I have been spraying 150 shot with 93 octane but I will get some 110 octant before I go to the dyno.

 

I am sure you know more than I as you are running faster than I, but I sure have a ?, are you running 35 * NA aswell as 35* on spray ?
thanks I sure need advice
Johnny

 

He has a lt1 the timing is notoriously high on lt1's. I would shoot for 11.8 thats where I tune for on the bottle. I would run whatever gas that you usually run and not race gas if you don't usually use it.

 

I've sprayed a 150 shot at 35* but I usaully pull 4* on a 150 shot.

 

I have not sprayed a 200 shot and have been thinking a little extra octane can't hurt. but 11.8 is what I was thinking.