- This topic has 7 replies, 4 voices, and was last updated 10 years, 5 months ago by
.
-
Topic
-
Just a quick question, if my engine is stock and I swap to a weber carb, should I use the stock timing settings? or it changes? just wonderin, since I will get my timing redone and I was wondering while using the stock setting the car felt lazy, but advancing it quite a bit the engine had good response, power and fuel economy, so, what gives then???
-
Replies
-
If the engine is stock the stock timing should work the best.
Is the carb set up correct? jets,float?As far as I see yes, the thing is that I found 2 manuals about the same engine, one says 5 degress and the other states 6 degrees, both for 16 valve head (G16A carb model or FI). BTW the carb is brand new, the only thing I did was to increase the float level because the hole for the accelerator pump was above the level of the gasoline inside the bowl, and lauching from idle created a flat spot, also when doing a long turn to the right creates a flats spot, but I guess is due to that also.
I wouldn’t think you would need to mess with the timing. You need to be careful when you do make those adjustments however. You can actually cause engine damage if you get it wrong.
Keep us posted on how things work out for you.
Actually, this time I got it right, the thing is that all this time I was running my car at 0 degrees, that explains all the flatspots. Also thar my vacuum advance unit is adjustable, and Ihad to tighthen it quite a bit so it would not ping after 1500rpms (the original unit was damaged and I could not find a replacement). But right now is running quite much better, and throttle response is FI like. I really like the way it is now, it starts like a cigarrette lighter now. What I still don’t get is, why at 0 degrees the car felt nice?
Many engines are set up at 0º base timing, it just depends on how the advance is set up. It also depends on combustion chamber design, compression ratio, and the fuel used. There are many factors that contribute to how an engine performs and where it’s base timing should be set. I don’t know the specifics on your application however.
- You must be logged in to reply to this topic.