Now.. This MIGHT come across as a mildly dumb question.. But.. What are good safe A/F's to run on an all motor setup?

When I was running my boosted D I was running 12.5:1 and that was considered safe.. Are the same rules going to apply to an all motor setup? Or is it different.

I would think that AFR's are AFR's.... And that it wouldn't matter what kinda setup you have.. But just to make sure.. I wanted to ask.

Please no Flaming!

 

Your likelihood of detonation is less with N/A, so you can run at MBT (mean best torque), which is usually closer to 13.3:1 or 13.5:1 if I'm not mistaken.

 

Depends on compression, fuel octane, efficiency etc...

12.5:1 on 91-93 oct on a motor with 12.5:1 c/r and below is fine.

You maybe able to make more power at 13.0-13.5:1 depending on the setup etc.

Ignition timing is VERY important when it comes to tuning a motor aswell, don't forget.

 

my tuner tuned his s2000 to 13.5 on motec m800 and put down 237whp

 

Another thing to take into consideration is the fact that not all widebands read the same, especially sniffers versus an o2 in the exhaust stream :-)

 

ive always wondered that?

say you take two of the same wide bands, both calibrated the same... one in a bung and one in the tail pipe.. How different would they be?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by gstrudler &raquo;</TD></TR><TR><TD CLASS="quote">MBT (mean best torque)</TD></TR></TABLE>
maximum brake torque

 

whatever the dyno likes.